diff options
Diffstat (limited to 'src/python/grpcio')
63 files changed, 7639 insertions, 853 deletions
diff --git a/src/python/grpcio/commands.py b/src/python/grpcio/commands.py index 295dab2d27..3e974eba0a 100644 --- a/src/python/grpcio/commands.py +++ b/src/python/grpcio/commands.py @@ -191,7 +191,7 @@ class BuildProtoModules(setuptools.Command): except subprocess.CalledProcessError as e: sys.stderr.write( 'warning: Command:\n{}\nMessage:\n{}\nOutput:\n{}'.format( - command, e.message, e.output)) + command, str(e), e.output)) # Generated proto directories dont include __init__.py, but # these are needed for python package resolution diff --git a/src/python/grpcio/grpc/__init__.py b/src/python/grpcio/grpc/__init__.py index b844a14c48..28adca3772 100644 --- a/src/python/grpcio/grpc/__init__.py +++ b/src/python/grpcio/grpc/__init__.py @@ -27,5 +27,1215 @@ # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +"""gRPC's Python API.""" + __import__('pkg_resources').declare_namespace(__name__) +import abc +import enum + +import six + +from grpc._cython import cygrpc as _cygrpc + + +############################## Future Interface ############################### + + +class FutureTimeoutError(Exception): + """Indicates that a method call on a Future timed out.""" + + +class FutureCancelledError(Exception): + """Indicates that the computation underlying a Future was cancelled.""" + + +class Future(six.with_metaclass(abc.ABCMeta)): + """A representation of a computation in another control flow. + + Computations represented by a Future may be yet to be begun, may be ongoing, + or may have already completed. + """ + + @abc.abstractmethod + def cancel(self): + """Attempts to cancel the computation. + + This method does not block. + + Returns: + True if the computation has not yet begun, will not be allowed to take + place, and determination of both was possible without blocking. False + under all other circumstances including but not limited to the + computation's already having begun, the computation's already having + finished, and the computation's having been scheduled for execution on a + remote system for which a determination of whether or not it commenced + before being cancelled cannot be made without blocking. + """ + raise NotImplementedError() + + @abc.abstractmethod + def cancelled(self): + """Describes whether the computation was cancelled. + + This method does not block. + + Returns: + True if the computation was cancelled any time before its result became + immediately available. False under all other circumstances including but + not limited to this object's cancel method not having been called and + the computation's result having become immediately available. + """ + raise NotImplementedError() + + @abc.abstractmethod + def running(self): + """Describes whether the computation is taking place. + + This method does not block. + + Returns: + True if the computation is scheduled to take place in the future or is + taking place now, or False if the computation took place in the past or + was cancelled. + """ + raise NotImplementedError() + + @abc.abstractmethod + def done(self): + """Describes whether the computation has taken place. + + This method does not block. + + Returns: + True if the computation is known to have either completed or have been + unscheduled or interrupted. False if the computation may possibly be + executing or scheduled to execute later. + """ + raise NotImplementedError() + + @abc.abstractmethod + def result(self, timeout=None): + """Accesses the outcome of the computation or raises its exception. + + This method may return immediately or may block. + + Args: + timeout: The length of time in seconds to wait for the computation to + finish or be cancelled, or None if this method should block until the + computation has finished or is cancelled no matter how long that takes. + + Returns: + The return value of the computation. + + Raises: + FutureTimeoutError: If a timeout value is passed and the computation does + not terminate within the allotted time. + FutureCancelledError: If the computation was cancelled. + Exception: If the computation raised an exception, this call will raise + the same exception. + """ + raise NotImplementedError() + + @abc.abstractmethod + def exception(self, timeout=None): + """Return the exception raised by the computation. + + This method may return immediately or may block. + + Args: + timeout: The length of time in seconds to wait for the computation to + terminate or be cancelled, or None if this method should block until + the computation is terminated or is cancelled no matter how long that + takes. + + Returns: + The exception raised by the computation, or None if the computation did + not raise an exception. + + Raises: + FutureTimeoutError: If a timeout value is passed and the computation does + not terminate within the allotted time. + FutureCancelledError: If the computation was cancelled. + """ + raise NotImplementedError() + + @abc.abstractmethod + def traceback(self, timeout=None): + """Access the traceback of the exception raised by the computation. + + This method may return immediately or may block. + + Args: + timeout: The length of time in seconds to wait for the computation to + terminate or be cancelled, or None if this method should block until + the computation is terminated or is cancelled no matter how long that + takes. + + Returns: + The traceback of the exception raised by the computation, or None if the + computation did not raise an exception. + + Raises: + FutureTimeoutError: If a timeout value is passed and the computation does + not terminate within the allotted time. + FutureCancelledError: If the computation was cancelled. + """ + raise NotImplementedError() + + @abc.abstractmethod + def add_done_callback(self, fn): + """Adds a function to be called at completion of the computation. + + The callback will be passed this Future object describing the outcome of + the computation. + + If the computation has already completed, the callback will be called + immediately. + + Args: + fn: A callable taking this Future object as its single parameter. + """ + raise NotImplementedError() + + +################################ gRPC Enums ################################## + + +@enum.unique +class ChannelConnectivity(enum.Enum): + """Mirrors grpc_connectivity_state in the gRPC Core. + + Attributes: + IDLE: The channel is idle. + CONNECTING: The channel is connecting. + READY: The channel is ready to conduct RPCs. + TRANSIENT_FAILURE: The channel has seen a failure from which it expects to + recover. + SHUTDOWN: The channel has seen a failure from which it cannot recover. + """ + IDLE = (_cygrpc.ConnectivityState.idle, 'idle') + CONNECTING = (_cygrpc.ConnectivityState.connecting, 'connecting') + READY = (_cygrpc.ConnectivityState.ready, 'ready') + TRANSIENT_FAILURE = ( + _cygrpc.ConnectivityState.transient_failure, 'transient failure') + SHUTDOWN = (_cygrpc.ConnectivityState.shutdown, 'shutdown') + + +@enum.unique +class StatusCode(enum.Enum): + """Mirrors grpc_status_code in the gRPC Core.""" + OK = (_cygrpc.StatusCode.ok, 'ok') + CANCELLED = (_cygrpc.StatusCode.cancelled, 'cancelled') + UNKNOWN = (_cygrpc.StatusCode.unknown, 'unknown') + INVALID_ARGUMENT = ( + _cygrpc.StatusCode.invalid_argument, 'invalid argument') + DEADLINE_EXCEEDED = ( + _cygrpc.StatusCode.deadline_exceeded, 'deadline exceeded') + NOT_FOUND = (_cygrpc.StatusCode.not_found, 'not found') + ALREADY_EXISTS = (_cygrpc.StatusCode.already_exists, 'already exists') + PERMISSION_DENIED = ( + _cygrpc.StatusCode.permission_denied, 'permission denied') + RESOURCE_EXHAUSTED = ( + _cygrpc.StatusCode.resource_exhausted, 'resource exhausted') + FAILED_PRECONDITION = ( + _cygrpc.StatusCode.failed_precondition, 'failed precondition') + ABORTED = (_cygrpc.StatusCode.aborted, 'aborted') + OUT_OF_RANGE = (_cygrpc.StatusCode.out_of_range, 'out of range') + UNIMPLEMENTED = (_cygrpc.StatusCode.unimplemented, 'unimplemented') + INTERNAL = (_cygrpc.StatusCode.internal, 'internal') + UNAVAILABLE = (_cygrpc.StatusCode.unavailable, 'unavailable') + DATA_LOSS = (_cygrpc.StatusCode.data_loss, 'data loss') + UNAUTHENTICATED = (_cygrpc.StatusCode.unauthenticated, 'unauthenticated') + + +############################# gRPC Exceptions ################################ + + +class RpcError(Exception): + """Raised by the gRPC library to indicate non-OK-status RPC termination.""" + + +############################## Shared Context ################################ + + +class RpcContext(six.with_metaclass(abc.ABCMeta)): + """Provides RPC-related information and action.""" + + @abc.abstractmethod + def is_active(self): + """Describes whether the RPC is active or has terminated.""" + raise NotImplementedError() + + @abc.abstractmethod + def time_remaining(self): + """Describes the length of allowed time remaining for the RPC. + + Returns: + A nonnegative float indicating the length of allowed time in seconds + remaining for the RPC to complete before it is considered to have timed + out, or None if no deadline was specified for the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def cancel(self): + """Cancels the RPC. + + Idempotent and has no effect if the RPC has already terminated. + """ + raise NotImplementedError() + + @abc.abstractmethod + def add_callback(self, callback): + """Registers a callback to be called on RPC termination. + + Args: + callback: A no-parameter callable to be called on RPC termination. + + Returns: + True if the callback was added and will be called later; False if the + callback was not added and will not later be called (because the RPC + already terminated or some other reason). + """ + raise NotImplementedError() + + +######################### Invocation-Side Context ############################ + + +class Call(six.with_metaclass(abc.ABCMeta, RpcContext)): + """Invocation-side utility object for an RPC.""" + + @abc.abstractmethod + def initial_metadata(self): + """Accesses the initial metadata from the service-side of the RPC. + + This method blocks until the value is available. + + Returns: + The initial metadata as a sequence of pairs of bytes. + """ + raise NotImplementedError() + + @abc.abstractmethod + def trailing_metadata(self): + """Accesses the trailing metadata from the service-side of the RPC. + + This method blocks until the value is available. + + Returns: + The trailing metadata as a sequence of pairs of bytes. + """ + raise NotImplementedError() + + @abc.abstractmethod + def code(self): + """Accesses the status code emitted by the service-side of the RPC. + + This method blocks until the value is available. + + Returns: + The StatusCode value for the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def details(self): + """Accesses the details value emitted by the service-side of the RPC. + + This method blocks until the value is available. + + Returns: + The bytes of the details of the RPC. + """ + raise NotImplementedError() + + +############ Authentication & Authorization Interfaces & Classes ############# + + +class ChannelCredentials(object): + """A value encapsulating the data required to create a secure Channel. + + This class has no supported interface - it exists to define the type of its + instances and its instances exist to be passed to other functions. + """ + + def __init__(self, credentials): + self._credentials = credentials + + +class CallCredentials(object): + """A value encapsulating data asserting an identity over a channel. + + A CallCredentials may be composed with ChannelCredentials to always assert + identity for every call over that Channel. + + This class has no supported interface - it exists to define the type of its + instances and its instances exist to be passed to other functions. + """ + + def __init__(self, credentials): + self._credentials = credentials + + +class AuthMetadataContext(six.with_metaclass(abc.ABCMeta)): + """Provides information to call credentials metadata plugins. + + Attributes: + service_url: A string URL of the service being called into. + method_name: A string of the fully qualified method name being called. + """ + + +class AuthMetadataPluginCallback(six.with_metaclass(abc.ABCMeta)): + """Callback object received by a metadata plugin.""" + + def __call__(self, metadata, error): + """Inform the gRPC runtime of the metadata to construct a CallCredentials. + + Args: + metadata: An iterable of 2-sequences (e.g. tuples) of metadata key/value + pairs. + error: An Exception to indicate error or None to indicate success. + """ + raise NotImplementedError() + + +class AuthMetadataPlugin(six.with_metaclass(abc.ABCMeta)): + """A specification for custom authentication.""" + + def __call__(self, context, callback): + """Implements authentication by passing metadata to a callback. + + Implementations of this method must not block. + + Args: + context: An AuthMetadataContext providing information on the RPC that the + plugin is being called to authenticate. + callback: An AuthMetadataPluginCallback to be invoked either synchronously + or asynchronously. + """ + raise NotImplementedError() + + +class ServerCredentials(object): + """A value encapsulating the data required to open a secure port on a Server. + + This class has no supported interface - it exists to define the type of its + instances and its instances exist to be passed to other functions. + """ + + def __init__(self, credentials): + self._credentials = credentials + + +######################## Multi-Callable Interfaces ########################### + + +class UnaryUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)): + """Affords invoking a unary-unary RPC.""" + + @abc.abstractmethod + def __call__( + self, request, timeout=None, metadata=None, credentials=None, + with_call=False): + """Synchronously invokes the underlying RPC. + + Args: + request: The request value for the RPC. + timeout: An optional duration of time in seconds to allow for the RPC. + metadata: An optional sequence of pairs of bytes to be transmitted to the + service-side of the RPC. + credentials: An optional CallCredentials for the RPC. + with_call: Whether or not to include return a Call for the RPC in addition + to the response. + + Returns: + The response value for the RPC, and a Call for the RPC if with_call was + set to True at invocation. + + Raises: + RpcError: Indicating that the RPC terminated with non-OK status. The + raised RpcError will also be a Call for the RPC affording the RPC's + metadata, status code, and details. + """ + raise NotImplementedError() + + @abc.abstractmethod + def future(self, request, timeout=None, metadata=None, credentials=None): + """Asynchronously invokes the underlying RPC. + + Args: + request: The request value for the RPC. + timeout: An optional duration of time in seconds to allow for the RPC. + metadata: An optional sequence of pairs of bytes to be transmitted to the + service-side of the RPC. + credentials: An optional CallCredentials for the RPC. + + Returns: + An object that is both a Call for the RPC and a Future. In the event of + RPC completion, the return Future's result value will be the response + message of the RPC. Should the event terminate with non-OK status, the + returned Future's exception value will be an RpcError. + """ + raise NotImplementedError() + + +class UnaryStreamMultiCallable(six.with_metaclass(abc.ABCMeta)): + """Affords invoking a unary-stream RPC.""" + + @abc.abstractmethod + def __call__(self, request, timeout=None, metadata=None, credentials=None): + """Invokes the underlying RPC. + + Args: + request: The request value for the RPC. + timeout: An optional duration of time in seconds to allow for the RPC. + metadata: An optional sequence of pairs of bytes to be transmitted to the + service-side of the RPC. + credentials: An optional CallCredentials for the RPC. + + Returns: + An object that is both a Call for the RPC and an iterator of response + values. Drawing response values from the returned iterator may raise + RpcError indicating termination of the RPC with non-OK status. + """ + raise NotImplementedError() + + +class StreamUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)): + """Affords invoking a stream-unary RPC in any call style.""" + + @abc.abstractmethod + def __call__( + self, request_iterator, timeout=None, metadata=None, credentials=None, + with_call=False): + """Synchronously invokes the underlying RPC. + + Args: + request_iterator: An iterator that yields request values for the RPC. + timeout: An optional duration of time in seconds to allow for the RPC. + metadata: An optional sequence of pairs of bytes to be transmitted to the + service-side of the RPC. + credentials: An optional CallCredentials for the RPC. + with_call: Whether or not to include return a Call for the RPC in addition + to the response. + + Returns: + The response value for the RPC, and a Call for the RPC if with_call was + set to True at invocation. + + Raises: + RpcError: Indicating that the RPC terminated with non-OK status. The + raised RpcError will also be a Call for the RPC affording the RPC's + metadata, status code, and details. + """ + raise NotImplementedError() + + @abc.abstractmethod + def future( + self, request_iterator, timeout=None, metadata=None, credentials=None): + """Asynchronously invokes the underlying RPC. + + Args: + request_iterator: An iterator that yields request values for the RPC. + timeout: An optional duration of time in seconds to allow for the RPC. + metadata: An optional sequence of pairs of bytes to be transmitted to the + service-side of the RPC. + credentials: An optional CallCredentials for the RPC. + + Returns: + An object that is both a Call for the RPC and a Future. In the event of + RPC completion, the return Future's result value will be the response + message of the RPC. Should the event terminate with non-OK status, the + returned Future's exception value will be an RpcError. + """ + raise NotImplementedError() + + +class StreamStreamMultiCallable(six.with_metaclass(abc.ABCMeta)): + """Affords invoking a stream-stream RPC in any call style.""" + + @abc.abstractmethod + def __call__( + self, request_iterator, timeout=None, metadata=None, credentials=None): + """Invokes the underlying RPC. + + Args: + request_iterator: An iterator that yields request values for the RPC. + timeout: An optional duration of time in seconds to allow for the RPC. + metadata: An optional sequence of pairs of bytes to be transmitted to the + service-side of the RPC. + credentials: An optional CallCredentials for the RPC. + + Returns: + An object that is both a Call for the RPC and an iterator of response + values. Drawing response values from the returned iterator may raise + RpcError indicating termination of the RPC with non-OK status. + """ + raise NotImplementedError() + + +############################# Channel Interface ############################## + + +class Channel(six.with_metaclass(abc.ABCMeta)): + """Affords RPC invocation via generic methods.""" + + @abc.abstractmethod + def subscribe(self, callback, try_to_connect=False): + """Subscribes to this Channel's connectivity. + + Args: + callback: A callable to be invoked and passed a ChannelConnectivity value + describing this Channel's connectivity. The callable will be invoked + immediately upon subscription and again for every change to this + Channel's connectivity thereafter until it is unsubscribed or this + Channel object goes out of scope. + try_to_connect: A boolean indicating whether or not this Channel should + attempt to connect if it is not already connected and ready to conduct + RPCs. + """ + raise NotImplementedError() + + @abc.abstractmethod + def unsubscribe(self, callback): + """Unsubscribes a callback from this Channel's connectivity. + + Args: + callback: A callable previously registered with this Channel from having + been passed to its "subscribe" method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def unary_unary( + self, method, request_serializer=None, response_deserializer=None): + """Creates a UnaryUnaryMultiCallable for a unary-unary method. + + Args: + method: The name of the RPC method. + + Returns: + A UnaryUnaryMultiCallable value for the named unary-unary method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def unary_stream( + self, method, request_serializer=None, response_deserializer=None): + """Creates a UnaryStreamMultiCallable for a unary-stream method. + + Args: + method: The name of the RPC method. + + Returns: + A UnaryStreamMultiCallable value for the name unary-stream method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def stream_unary( + self, method, request_serializer=None, response_deserializer=None): + """Creates a StreamUnaryMultiCallable for a stream-unary method. + + Args: + method: The name of the RPC method. + + Returns: + A StreamUnaryMultiCallable value for the named stream-unary method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def stream_stream( + self, method, request_serializer=None, response_deserializer=None): + """Creates a StreamStreamMultiCallable for a stream-stream method. + + Args: + method: The name of the RPC method. + + Returns: + A StreamStreamMultiCallable value for the named stream-stream method. + """ + raise NotImplementedError() + + +########################## Service-Side Context ############################## + + +class ServicerContext(six.with_metaclass(abc.ABCMeta, RpcContext)): + """A context object passed to method implementations.""" + + @abc.abstractmethod + def invocation_metadata(self): + """Accesses the metadata from the invocation-side of the RPC. + + Returns: + The invocation metadata object as a sequence of pairs of bytes. + """ + raise NotImplementedError() + + @abc.abstractmethod + def peer(self): + """Identifies the peer that invoked the RPC being serviced. + + Returns: + A string identifying the peer that invoked the RPC being serviced. + """ + raise NotImplementedError() + + @abc.abstractmethod + def send_initial_metadata(self, initial_metadata): + """Sends the initial metadata value to the invocation-side of the RPC. + + This method need not be called by method implementations if they have no + service-side initial metadata to transmit. + + Args: + initial_metadata: The initial metadata of the RPC as a sequence of pairs + of bytes. + """ + raise NotImplementedError() + + @abc.abstractmethod + def set_trailing_metadata(self, trailing_metadata): + """Accepts the trailing metadata value of the RPC. + + This method need not be called by method implementations if they have no + service-side trailing metadata to transmit. + + Args: + trailing_metadata: The trailing metadata of the RPC as a sequence of pairs + of bytes. + """ + raise NotImplementedError() + + @abc.abstractmethod + def set_code(self, code): + """Accepts the status code of the RPC. + + This method need not be called by method implementations if they wish the + gRPC runtime to determine the status code of the RPC. + + Args: + code: The integer status code of the RPC to be transmitted to the + invocation side of the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def set_details(self, details): + """Accepts the service-side details of the RPC. + + This method need not be called by method implementations if they have no + details to transmit. + + Args: + details: The details bytes of the RPC to be transmitted to + the invocation side of the RPC. + """ + raise NotImplementedError() + + +##################### Service-Side Handler Interfaces ######################## + + +class RpcMethodHandler(six.with_metaclass(abc.ABCMeta)): + """An implementation of a single RPC method. + + Attributes: + request_streaming: Whether the RPC supports exactly one request message or + any arbitrary number of request messages. + response_streaming: Whether the RPC supports exactly one response message or + any arbitrary number of response messages. + request_deserializer: A callable behavior that accepts a byte string and + returns an object suitable to be passed to this object's business logic, + or None to indicate that this object's business logic should be passed the + raw request bytes. + response_serializer: A callable behavior that accepts an object produced by + this object's business logic and returns a byte string, or None to + indicate that the byte strings produced by this object's business logic + should be transmitted on the wire as they are. + unary_unary: This object's application-specific business logic as a callable + value that takes a request value and a ServicerContext object and returns + a response value. Only non-None if both request_streaming and + response_streaming are False. + unary_stream: This object's application-specific business logic as a + callable value that takes a request value and a ServicerContext object and + returns an iterator of response values. Only non-None if request_streaming + is False and response_streaming is True. + stream_unary: This object's application-specific business logic as a + callable value that takes an iterator of request values and a + ServicerContext object and returns a response value. Only non-None if + request_streaming is True and response_streaming is False. + stream_stream: This object's application-specific business logic as a + callable value that takes an iterator of request values and a + ServicerContext object and returns an iterator of response values. Only + non-None if request_streaming and response_streaming are both True. + """ + + +class HandlerCallDetails(six.with_metaclass(abc.ABCMeta)): + """Describes an RPC that has just arrived for service. + Attributes: + method: The method name of the RPC. + invocation_metadata: The metadata from the invocation side of the RPC. + """ + + +class GenericRpcHandler(six.with_metaclass(abc.ABCMeta)): + """An implementation of arbitrarily many RPC methods.""" + + @abc.abstractmethod + def service(self, handler_call_details): + """Services an RPC (or not). + + Args: + handler_call_details: A HandlerCallDetails describing the RPC. + + Returns: + An RpcMethodHandler with which the RPC may be serviced, or None to + indicate that this object will not be servicing the RPC. + """ + raise NotImplementedError() + + +############################# Server Interface ############################### + + +class Server(six.with_metaclass(abc.ABCMeta)): + """Services RPCs.""" + + @abc.abstractmethod + def add_generic_rpc_handlers(self, generic_rpc_handlers): + """Registers GenericRpcHandlers with this Server. + + This method is only safe to call before the server is started. + + Args: + generic_rpc_handlers: An iterable of GenericRpcHandlers that will be used + to service RPCs after this Server is started. + """ + raise NotImplementedError() + + @abc.abstractmethod + def add_insecure_port(self, address): + """Reserves a port for insecure RPC service once this Server becomes active. + + This method may only be called before calling this Server's start method is + called. + + Args: + address: The address for which to open a port. + + Returns: + An integer port on which RPCs will be serviced after this link has been + started. This is typically the same number as the port number contained + in the passed address, but will likely be different if the port number + contained in the passed address was zero. + """ + raise NotImplementedError() + + @abc.abstractmethod + def add_secure_port(self, address, server_credentials): + """Reserves a port for secure RPC service after this Server becomes active. + + This method may only be called before calling this Server's start method is + called. + + Args: + address: The address for which to open a port. + server_credentials: A ServerCredentials. + + Returns: + An integer port on which RPCs will be serviced after this link has been + started. This is typically the same number as the port number contained + in the passed address, but will likely be different if the port number + contained in the passed address was zero. + """ + raise NotImplementedError() + + @abc.abstractmethod + def start(self): + """Starts this Server's service of RPCs. + + This method may only be called while the server is not serving RPCs (i.e. it + is not idempotent). + """ + raise NotImplementedError() + + @abc.abstractmethod + def stop(self, grace): + """Stops this Server's service of RPCs. + + All calls to this method immediately stop service of new RPCs. When existing + RPCs are aborted is controlled by the grace period parameter passed to this + method. + + This method may be called at any time and is idempotent. Passing a smaller + grace value than has been passed in a previous call will have the effect of + stopping the Server sooner. Passing a larger grace value than has been + passed in a previous call will not have the effect of stopping the server + later. + + Args: + grace: A duration of time in seconds to allow existing RPCs to complete + before being aborted by this Server's stopping. If None, this method + will block until the server is completely stopped. + + Returns: + A threading.Event that will be set when this Server has completely + stopped. The returned event may not be set until after the full grace + period (if some ongoing RPC continues for the full length of the period) + of it may be set much sooner (such as if this Server had no RPCs underway + at the time it was stopped or if all RPCs that it had underway completed + very early in the grace period). + """ + raise NotImplementedError() + + +################################# Functions ################################ + + +def unary_unary_rpc_method_handler( + behavior, request_deserializer=None, response_serializer=None): + """Creates an RpcMethodHandler for a unary-unary RPC method. + + Args: + behavior: The implementation of an RPC method as a callable behavior taking + a single request value and returning a single response value. + request_deserializer: An optional request deserialization behavior. + response_serializer: An optional response serialization behavior. + + Returns: + An RpcMethodHandler for a unary-unary RPC method constructed from the given + parameters. + """ + from grpc import _utilities + return _utilities.RpcMethodHandler( + False, False, request_deserializer, response_serializer, behavior, None, + None, None) + + +def unary_stream_rpc_method_handler( + behavior, request_deserializer=None, response_serializer=None): + """Creates an RpcMethodHandler for a unary-stream RPC method. + + Args: + behavior: The implementation of an RPC method as a callable behavior taking + a single request value and returning an iterator of response values. + request_deserializer: An optional request deserialization behavior. + response_serializer: An optional response serialization behavior. + + Returns: + An RpcMethodHandler for a unary-stream RPC method constructed from the + given parameters. + """ + from grpc import _utilities + return _utilities.RpcMethodHandler( + False, True, request_deserializer, response_serializer, None, behavior, + None, None) + + +def stream_unary_rpc_method_handler( + behavior, request_deserializer=None, response_serializer=None): + """Creates an RpcMethodHandler for a stream-unary RPC method. + + Args: + behavior: The implementation of an RPC method as a callable behavior taking + an iterator of request values and returning a single response value. + request_deserializer: An optional request deserialization behavior. + response_serializer: An optional response serialization behavior. + + Returns: + An RpcMethodHandler for a stream-unary RPC method constructed from the + given parameters. + """ + from grpc import _utilities + return _utilities.RpcMethodHandler( + True, False, request_deserializer, response_serializer, None, None, + behavior, None) + + +def stream_stream_rpc_method_handler( + behavior, request_deserializer=None, response_serializer=None): + """Creates an RpcMethodHandler for a stream-stream RPC method. + + Args: + behavior: The implementation of an RPC method as a callable behavior taking + an iterator of request values and returning an iterator of response + values. + request_deserializer: An optional request deserialization behavior. + response_serializer: An optional response serialization behavior. + + Returns: + An RpcMethodHandler for a stream-stream RPC method constructed from the + given parameters. + """ + from grpc import _utilities + return _utilities.RpcMethodHandler( + True, True, request_deserializer, response_serializer, None, None, None, + behavior) + + +def method_handlers_generic_handler(service, method_handlers): + """Creates a grpc.GenericRpcHandler from RpcMethodHandlers. + + Args: + service: A service name to be used for the given method handlers. + method_handlers: A dictionary from method name to RpcMethodHandler + implementing the named method. + + Returns: + A GenericRpcHandler constructed from the given parameters. + """ + from grpc import _utilities + return _utilities.DictionaryGenericHandler(service, method_handlers) + + +def ssl_channel_credentials( + root_certificates=None, private_key=None, certificate_chain=None): + """Creates a ChannelCredentials for use with an SSL-enabled Channel. + + Args: + root_certificates: The PEM-encoded root certificates or unset to ask for + them to be retrieved from a default location. + private_key: The PEM-encoded private key to use or unset if no private key + should be used. + certificate_chain: The PEM-encoded certificate chain to use or unset if no + certificate chain should be used. + + Returns: + A ChannelCredentials for use with an SSL-enabled Channel. + """ + if private_key is not None or certificate_chain is not None: + pair = _cygrpc.SslPemKeyCertPair(private_key, certificate_chain) + else: + pair = None + return ChannelCredentials( + _cygrpc.channel_credentials_ssl(root_certificates, pair)) + + +def metadata_call_credentials(metadata_plugin, name=None): + """Construct CallCredentials from an AuthMetadataPlugin. + + Args: + metadata_plugin: An AuthMetadataPlugin to use as the authentication behavior + in the created CallCredentials. + name: A name for the plugin. + + Returns: + A CallCredentials. + """ + from grpc import _plugin_wrapping + if name is None: + try: + effective_name = metadata_plugin.__name__ + except AttributeError: + effective_name = metadata_plugin.__class__.__name__ + else: + effective_name = name + return CallCredentials( + _plugin_wrapping.call_credentials_metadata_plugin( + metadata_plugin, effective_name)) + + +def access_token_call_credentials(access_token): + """Construct CallCredentials from an access token. + + Args: + access_token: A string to place directly in the http request + authorization header, ie "Authorization: Bearer <access_token>". + + Returns: + A CallCredentials. + """ + from grpc import _auth + return metadata_call_credentials( + _auth.AccessTokenCallCredentials(access_token)) + + +def composite_call_credentials(call_credentials, additional_call_credentials): + """Compose two CallCredentials to make a new one. + + Args: + call_credentials: A CallCredentials object. + additional_call_credentials: Another CallCredentials object to compose on + top of call_credentials. + + Returns: + A new CallCredentials composed of the two given CallCredentials. + """ + return CallCredentials( + _cygrpc.call_credentials_composite( + call_credentials._credentials, + additional_call_credentials._credentials)) + + +def composite_channel_credentials(channel_credentials, call_credentials): + """Compose a ChannelCredentials and a CallCredentials. + + Args: + channel_credentials: A ChannelCredentials. + call_credentials: A CallCredentials. + + Returns: + A ChannelCredentials composed of the given ChannelCredentials and + CallCredentials. + """ + return ChannelCredentials( + _cygrpc.channel_credentials_composite( + channel_credentials._credentials, call_credentials._credentials)) + + +def ssl_server_credentials( + private_key_certificate_chain_pairs, root_certificates=None, + require_client_auth=False): + """Creates a ServerCredentials for use with an SSL-enabled Server. + + Args: + private_key_certificate_chain_pairs: A nonempty sequence each element of + which is a pair the first element of which is a PEM-encoded private key + and the second element of which is the corresponding PEM-encoded + certificate chain. + root_certificates: PEM-encoded client root certificates to be used for + verifying authenticated clients. If omitted, require_client_auth must also + be omitted or be False. + require_client_auth: A boolean indicating whether or not to require clients + to be authenticated. May only be True if root_certificates is not None. + + Returns: + A ServerCredentials for use with an SSL-enabled Server. + """ + if len(private_key_certificate_chain_pairs) == 0: + raise ValueError( + 'At least one private key-certificate chain pair is required!') + elif require_client_auth and root_certificates is None: + raise ValueError( + 'Illegal to require client auth without providing root certificates!') + else: + return ServerCredentials( + _cygrpc.server_credentials_ssl( + root_certificates, + [_cygrpc.SslPemKeyCertPair(key, pem) + for key, pem in private_key_certificate_chain_pairs], + require_client_auth)) + + +def channel_ready_future(channel): + """Creates a Future tracking when a Channel is ready. + + Cancelling the returned Future does not tell the given Channel to abandon + attempts it may have been making to connect; cancelling merely deactivates the + returned Future's subscription to the given Channel's connectivity. + + Args: + channel: A Channel. + + Returns: + A Future that matures when the given Channel has connectivity + ChannelConnectivity.READY. + """ + from grpc import _utilities + return _utilities.channel_ready_future(channel) + + +def insecure_channel(target, options=None): + """Creates an insecure Channel to a server. + + Args: + target: The target to which to connect. + options: A sequence of string-value pairs according to which to configure + the created channel. + + Returns: + A Channel to the target through which RPCs may be conducted. + """ + from grpc import _channel + return _channel.Channel(target, options, None) + + +def secure_channel(target, credentials, options=None): + """Creates an insecure Channel to a server. + + Args: + target: The target to which to connect. + credentials: A ChannelCredentials instance. + options: A sequence of string-value pairs according to which to configure + the created channel. + + Returns: + A Channel to the target through which RPCs may be conducted. + """ + from grpc import _channel + return _channel.Channel(target, options, credentials) + + +def server(generic_rpc_handlers, thread_pool, options=None): + """Creates a Server with which RPCs can be serviced. + + The GenericRpcHandlers passed to this function needn't be the only + GenericRpcHandlers that will be used to serve RPCs; others may be added later + by calling add_generic_rpc_handlers any time before the returned server is + started. + + Args: + generic_rpc_handlers: Some number of GenericRpcHandlers that will be used + to service RPCs after the returned Server is started. + thread_pool: A futures.ThreadPoolExecutor to be used by the returned Server + to service RPCs. + + Returns: + A Server with which RPCs can be serviced. + """ + from grpc import _server + return _server.Server(generic_rpc_handlers, thread_pool) + + +################################### __all__ ################################# + + +__all__ = ( + 'FutureTimeoutError', + 'FutureCancelledError', + 'Future', + 'ChannelConnectivity', + 'StatusCode', + 'RpcError', + 'RpcContext', + 'Call', + 'ChannelCredentials', + 'CallCredentials', + 'AuthMetadataContext', + 'AuthMetadataPluginCallback', + 'AuthMetadataPlugin', + 'ServerCredentials', + 'UnaryUnaryMultiCallable', + 'UnaryStreamMultiCallable', + 'StreamUnaryMultiCallable', + 'StreamStreamMultiCallable', + 'Channel', + 'ServicerContext', + 'RpcMethodHandler', + 'HandlerCallDetails', + 'GenericRpcHandler', + 'Server', + 'unary_unary_rpc_method_handler', + 'unary_stream_rpc_method_handler', + 'stream_unary_rpc_method_handler', + 'stream_stream_rpc_method_handler', + 'method_handlers_generic_handler', + 'ssl_channel_credentials', + 'metadata_call_credentials', + 'access_token_call_credentials', + 'composite_call_credentials', + 'composite_channel_credentials', + 'ssl_server_credentials', + 'channel_ready_future', + 'insecure_channel', + 'secure_channel', + 'server', +) diff --git a/src/python/grpcio/grpc/_adapter/_low.py b/src/python/grpcio/grpc/_adapter/_low.py index 00788bd4cf..48410167a0 100644 --- a/src/python/grpcio/grpc/_adapter/_low.py +++ b/src/python/grpcio/grpc/_adapter/_low.py @@ -30,8 +30,8 @@ import threading from grpc import _grpcio_metadata +from grpc import _plugin_wrapping from grpc._cython import cygrpc -from grpc._adapter import _implementations from grpc._adapter import _types _USER_AGENT = 'Python-gRPC-{}'.format(_grpcio_metadata.__version__) @@ -57,78 +57,8 @@ def channel_credentials_ssl( return cygrpc.channel_credentials_ssl(root_certificates, pair) -class _WrappedCygrpcCallback(object): - - def __init__(self, cygrpc_callback): - self.is_called = False - self.error = None - self.is_called_lock = threading.Lock() - self.cygrpc_callback = cygrpc_callback - - def _invoke_failure(self, error): - # TODO(atash) translate different Exception superclasses into different - # status codes. - self.cygrpc_callback( - cygrpc.Metadata([]), cygrpc.StatusCode.internal, error.message) - - def _invoke_success(self, metadata): - try: - cygrpc_metadata = cygrpc.Metadata( - cygrpc.Metadatum(key, value) - for key, value in metadata) - except Exception as error: - self._invoke_failure(error) - return - self.cygrpc_callback(cygrpc_metadata, cygrpc.StatusCode.ok, '') - - def __call__(self, metadata, error): - with self.is_called_lock: - if self.is_called: - raise RuntimeError('callback should only ever be invoked once') - if self.error: - self._invoke_failure(self.error) - return - self.is_called = True - if error is None: - self._invoke_success(metadata) - else: - self._invoke_failure(error) - - def notify_failure(self, error): - with self.is_called_lock: - if not self.is_called: - self.error = error - - -class _WrappedPlugin(object): - - def __init__(self, plugin): - self.plugin = plugin - - def __call__(self, context, cygrpc_callback): - wrapped_cygrpc_callback = _WrappedCygrpcCallback(cygrpc_callback) - wrapped_context = _implementations.AuthMetadataContext(context.service_url, - context.method_name) - try: - self.plugin( - wrapped_context, - _implementations.AuthMetadataPluginCallback(wrapped_cygrpc_callback)) - except Exception as error: - wrapped_cygrpc_callback.notify_failure(error) - raise - - -def call_credentials_metadata_plugin(plugin, name): - """ - Args: - plugin: A callable accepting a _types.AuthMetadataContext - object and a callback (itself accepting a list of metadata key/value - 2-tuples and a None-able exception value). The callback must be eventually - called, but need not be called in plugin's invocation. - plugin's invocation must be non-blocking. - """ - return cygrpc.call_credentials_metadata_plugin( - cygrpc.CredentialsMetadataPlugin(_WrappedPlugin(plugin), name)) +call_credentials_metadata_plugin = ( + _plugin_wrapping.call_credentials_metadata_plugin) class CompletionQueue(_types.CompletionQueue): diff --git a/src/python/grpcio/grpc/_adapter/_types.py b/src/python/grpcio/grpc/_adapter/_types.py index f8405949d4..b7cc6fbbb5 100644 --- a/src/python/grpcio/grpc/_adapter/_types.py +++ b/src/python/grpcio/grpc/_adapter/_types.py @@ -114,7 +114,7 @@ class ConnectivityState(enum.IntEnum): CONNECTING = cygrpc.ConnectivityState.connecting READY = cygrpc.ConnectivityState.ready TRANSIENT_FAILURE = cygrpc.ConnectivityState.transient_failure - FATAL_FAILURE = cygrpc.ConnectivityState.fatal_failure + FATAL_FAILURE = cygrpc.ConnectivityState.shutdown class Status(collections.namedtuple( diff --git a/src/python/grpcio/grpc/_auth.py b/src/python/grpcio/grpc/_auth.py new file mode 100644 index 0000000000..dea3221c9d --- /dev/null +++ b/src/python/grpcio/grpc/_auth.py @@ -0,0 +1,86 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""GRPCAuthMetadataPlugins for standard authentication.""" + +import inspect +from concurrent import futures + +import grpc + + +def _sign_request(callback, token, error): + metadata = (('authorization', 'Bearer {}'.format(token)),) + callback(metadata, error) + + +class GoogleCallCredentials(grpc.AuthMetadataPlugin): + """Metadata wrapper for GoogleCredentials from the oauth2client library.""" + + def __init__(self, credentials): + self._credentials = credentials + self._pool = futures.ThreadPoolExecutor(max_workers=1) + + # Hack to determine if these are JWT creds and we need to pass + # additional_claims when getting a token + if 'additional_claims' in inspect.getargspec( + credentials.get_access_token).args: + self._is_jwt = True + else: + self._is_jwt = False + + def __call__(self, context, callback): + # MetadataPlugins cannot block (see grpc.beta.interfaces.py) + if self._is_jwt: + future = self._pool.submit(self._credentials.get_access_token, + additional_claims={'aud': context.service_url}) + else: + future = self._pool.submit(self._credentials.get_access_token) + future.add_done_callback(lambda x: self._get_token_callback(callback, x)) + + def _get_token_callback(self, callback, future): + try: + access_token = future.result().access_token + except Exception as e: + _sign_request(callback, None, e) + else: + _sign_request(callback, access_token, None) + + def __del__(self): + self._pool.shutdown(wait=False) + + +class AccessTokenCallCredentials(grpc.AuthMetadataPlugin): + """Metadata wrapper for raw access token credentials.""" + + def __init__(self, access_token): + self._access_token = access_token + + def __call__(self, context, callback): + _sign_request(callback, self._access_token, None) diff --git a/src/python/grpcio/grpc/_channel.py b/src/python/grpcio/grpc/_channel.py new file mode 100644 index 0000000000..d9315d2e6c --- /dev/null +++ b/src/python/grpcio/grpc/_channel.py @@ -0,0 +1,852 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Invocation-side implementation of gRPC Python.""" + +import sys +import threading +import time + +import grpc +from grpc import _common +from grpc import _grpcio_metadata +from grpc.framework.foundation import callable_util +from grpc._cython import cygrpc + +_USER_AGENT = 'Python-gRPC-{}'.format(_grpcio_metadata.__version__) + +_EMPTY_FLAGS = 0 +_INFINITE_FUTURE = cygrpc.Timespec(float('+inf')) +_EMPTY_METADATA = cygrpc.Metadata(()) + +_UNARY_UNARY_INITIAL_DUE = ( + cygrpc.OperationType.send_initial_metadata, + cygrpc.OperationType.send_message, + cygrpc.OperationType.send_close_from_client, + cygrpc.OperationType.receive_initial_metadata, + cygrpc.OperationType.receive_message, + cygrpc.OperationType.receive_status_on_client, +) +_UNARY_STREAM_INITIAL_DUE = ( + cygrpc.OperationType.send_initial_metadata, + cygrpc.OperationType.send_message, + cygrpc.OperationType.send_close_from_client, + cygrpc.OperationType.receive_initial_metadata, + cygrpc.OperationType.receive_status_on_client, +) +_STREAM_UNARY_INITIAL_DUE = ( + cygrpc.OperationType.send_initial_metadata, + cygrpc.OperationType.receive_initial_metadata, + cygrpc.OperationType.receive_message, + cygrpc.OperationType.receive_status_on_client, +) +_STREAM_STREAM_INITIAL_DUE = ( + cygrpc.OperationType.send_initial_metadata, + cygrpc.OperationType.receive_initial_metadata, + cygrpc.OperationType.receive_status_on_client, +) + +_CHANNEL_SUBSCRIPTION_CALLBACK_ERROR_LOG_MESSAGE = ( + 'Exception calling channel subscription callback!') + + +def _deadline(timeout): + if timeout is None: + return None, _INFINITE_FUTURE + else: + deadline = time.time() + timeout + return deadline, cygrpc.Timespec(deadline) + + +def _unknown_code_details(unknown_cygrpc_code, details): + return 'Server sent unknown code {} and details "{}"'.format( + unknown_cygrpc_code, details) + + +def _wait_once_until(condition, until): + if until is None: + condition.wait() + else: + remaining = until - time.time() + if remaining < 0: + raise grpc.FutureTimeoutError() + else: + condition.wait(timeout=remaining) + + +class _RPCState(object): + + def __init__(self, due, initial_metadata, trailing_metadata, code, details): + self.condition = threading.Condition() + # The cygrpc.OperationType objects representing events due from the RPC's + # completion queue. + self.due = set(due) + self.initial_metadata = initial_metadata + self.response = None + self.trailing_metadata = trailing_metadata + self.code = code + self.details = details + # The semantics of grpc.Future.cancel and grpc.Future.cancelled are + # slightly wonky, so they have to be tracked separately from the rest of the + # result of the RPC. This field tracks whether cancellation was requested + # prior to termination of the RPC. + self.cancelled = False + self.callbacks = [] + + +def _abort(state, code, details): + if state.code is None: + state.code = code + state.details = details + if state.initial_metadata is None: + state.initial_metadata = _EMPTY_METADATA + state.trailing_metadata = _EMPTY_METADATA + + +def _handle_event(event, state, response_deserializer): + callbacks = [] + for batch_operation in event.batch_operations: + operation_type = batch_operation.type + state.due.remove(operation_type) + if operation_type == cygrpc.OperationType.receive_initial_metadata: + state.initial_metadata = batch_operation.received_metadata + elif operation_type == cygrpc.OperationType.receive_message: + serialized_response = batch_operation.received_message.bytes() + if serialized_response is not None: + response = _common.deserialize( + serialized_response, response_deserializer) + if response is None: + details = 'Exception deserializing response!' + _abort(state, grpc.StatusCode.INTERNAL, details) + else: + state.response = response + elif operation_type == cygrpc.OperationType.receive_status_on_client: + state.trailing_metadata = batch_operation.received_metadata + if state.code is None: + code = _common.CYGRPC_STATUS_CODE_TO_STATUS_CODE.get( + batch_operation.received_status_code) + if code is None: + state.code = grpc.StatusCode.UNKNOWN + state.details = _unknown_code_details( + batch_operation.received_status_code, + batch_operation.received_status_details) + else: + state.code = code + state.details = batch_operation.received_status_details + callbacks.extend(state.callbacks) + state.callbacks = None + return callbacks + + +def _event_handler(state, call, response_deserializer): + def handle_event(event): + with state.condition: + callbacks = _handle_event(event, state, response_deserializer) + state.condition.notify_all() + done = not state.due + for callback in callbacks: + callback() + return call if done else None + return handle_event + + +def _consume_request_iterator( + request_iterator, state, call, request_serializer): + event_handler = _event_handler(state, call, None) + def consume_request_iterator(): + for request in request_iterator: + serialized_request = _common.serialize(request, request_serializer) + with state.condition: + if state.code is None and not state.cancelled: + if serialized_request is None: + call.cancel() + details = 'Exception serializing request!' + _abort(state, grpc.StatusCode.INTERNAL, details) + return + else: + operations = ( + cygrpc.operation_send_message( + serialized_request, _EMPTY_FLAGS), + ) + call.start_batch(cygrpc.Operations(operations), event_handler) + state.due.add(cygrpc.OperationType.send_message) + while True: + state.condition.wait() + if state.code is None: + if cygrpc.OperationType.send_message not in state.due: + break + else: + return + else: + return + with state.condition: + if state.code is None: + operations = ( + cygrpc.operation_send_close_from_client(_EMPTY_FLAGS), + ) + call.start_batch(cygrpc.Operations(operations), event_handler) + state.due.add(cygrpc.OperationType.send_close_from_client) + thread = threading.Thread(target=consume_request_iterator) + thread.start() + + +class _Rendezvous(grpc.RpcError, grpc.Future, grpc.Call): + + def __init__(self, state, call, response_deserializer, deadline): + super(_Rendezvous, self).__init__() + self._state = state + self._call = call + self._response_deserializer = response_deserializer + self._deadline = deadline + + def cancel(self): + with self._state.condition: + if self._state.code is None: + self._call.cancel() + self._state.cancelled = True + _abort(self._state, grpc.StatusCode.CANCELLED, 'Cancelled!') + self._state.condition.notify_all() + return False + + def cancelled(self): + with self._state.condition: + return self._state.cancelled + + def running(self): + with self._state.condition: + return self._state.code is None + + def done(self): + with self._state.condition: + return self._state.code is not None + + def result(self, timeout=None): + until = None if timeout is None else time.time() + timeout + with self._state.condition: + while True: + if self._state.code is None: + _wait_once_until(self._state.condition, until) + elif self._state.code is grpc.StatusCode.OK: + return self._state.response + elif self._state.cancelled: + raise grpc.FutureCancelledError() + else: + raise self + + def exception(self, timeout=None): + until = None if timeout is None else time.time() + timeout + with self._state.condition: + while True: + if self._state.code is None: + _wait_once_until(self._state.condition, until) + elif self._state.code is grpc.StatusCode.OK: + return None + elif self._state.cancelled: + raise grpc.FutureCancelledError() + else: + return self + + def traceback(self, timeout=None): + until = None if timeout is None else time.time() + timeout + with self._state.condition: + while True: + if self._state.code is None: + _wait_once_until(self._state.condition, until) + elif self._state.code is grpc.StatusCode.OK: + return None + elif self._state.cancelled: + raise grpc.FutureCancelledError() + else: + try: + raise self + except grpc.RpcError: + return sys.exc_info()[2] + + def add_done_callback(self, fn): + with self._state.condition: + if self._state.code is None: + self._state.callbacks.append(lambda: fn(self)) + return + + fn(self) + + def _next(self): + with self._state.condition: + if self._state.code is None: + event_handler = _event_handler( + self._state, self._call, self._response_deserializer) + self._call.start_batch( + cygrpc.Operations( + (cygrpc.operation_receive_message(_EMPTY_FLAGS),)), + event_handler) + self._state.due.add(cygrpc.OperationType.receive_message) + elif self._state.code is grpc.StatusCode.OK: + raise StopIteration() + else: + raise self + while True: + self._state.condition.wait() + if self._state.response is not None: + response = self._state.response + self._state.response = None + return response + elif cygrpc.OperationType.receive_message not in self._state.due: + if self._state.code is grpc.StatusCode.OK: + raise StopIteration() + elif self._state.code is not None: + raise self + + def __iter__(self): + return self + + def __next__(self): + return self._next() + + def next(self): + return self._next() + + def is_active(self): + with self._state.condition: + return self._state.code is None + + def time_remaining(self): + if self._deadline is None: + return None + else: + return max(self._deadline - time.time(), 0) + + def add_cancellation_callback(self, callback): + with self._state.condition: + if self._state.callbacks is None: + return False + else: + self._state.callbacks.append(lambda unused_future: callback()) + return True + + def initial_metadata(self): + with self._state.condition: + while self._state.initial_metadata is None: + self._state.condition.wait() + return self._state.initial_metadata + + def trailing_metadata(self): + with self._state.condition: + while self._state.trailing_metadata is None: + self._state.condition.wait() + return self._state.trailing_metadata + + def code(self): + with self._state.condition: + while self._state.code is None: + self._state.condition.wait() + return self._state.code + + def details(self): + with self._state.condition: + while self._state.details is None: + self._state.condition.wait() + return self._state.details + + def _repr(self): + with self._state.condition: + if self._state.code is None: + return '<_Rendezvous object of in-flight RPC>' + else: + return '<_Rendezvous of RPC that terminated with ({}, {})>'.format( + self._state.code, self._state.details) + + def __repr__(self): + return self._repr() + + def __str__(self): + return self._repr() + + def __del__(self): + with self._state.condition: + if self._state.code is None: + self._call.cancel() + self._state.cancelled = True + self._state.code = grpc.StatusCode.CANCELLED + self._state.condition.notify_all() + + +def _start_unary_request(request, timeout, request_serializer): + deadline, deadline_timespec = _deadline(timeout) + serialized_request = _common.serialize(request, request_serializer) + if serialized_request is None: + state = _RPCState( + (), _EMPTY_METADATA, _EMPTY_METADATA, grpc.StatusCode.INTERNAL, + 'Exception serializing request!') + rendezvous = _Rendezvous(state, None, None, deadline) + return deadline, deadline_timespec, None, rendezvous + else: + return deadline, deadline_timespec, serialized_request, None + + +def _end_unary_response_blocking(state, with_call, deadline): + if state.code is grpc.StatusCode.OK: + if with_call: + rendezvous = _Rendezvous(state, None, None, deadline) + return state.response, rendezvous + else: + return state.response + else: + raise _Rendezvous(state, None, None, deadline) + + +class _UnaryUnaryMultiCallable(grpc.UnaryUnaryMultiCallable): + + def __init__( + self, channel, create_managed_call, method, request_serializer, + response_deserializer): + self._channel = channel + self._create_managed_call = create_managed_call + self._method = method + self._request_serializer = request_serializer + self._response_deserializer = response_deserializer + + def _prepare(self, request, timeout, metadata): + deadline, deadline_timespec, serialized_request, rendezvous = ( + _start_unary_request(request, timeout, self._request_serializer)) + if serialized_request is None: + return None, None, None, None, rendezvous + else: + state = _RPCState(_UNARY_UNARY_INITIAL_DUE, None, None, None, None) + operations = ( + cygrpc.operation_send_initial_metadata( + _common.metadata(metadata), _EMPTY_FLAGS), + cygrpc.operation_send_message(serialized_request, _EMPTY_FLAGS), + cygrpc.operation_send_close_from_client(_EMPTY_FLAGS), + cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS), + cygrpc.operation_receive_message(_EMPTY_FLAGS), + cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS), + ) + return state, operations, deadline, deadline_timespec, None + + def __call__( + self, request, timeout=None, metadata=None, credentials=None, + with_call=False): + state, operations, deadline, deadline_timespec, rendezvous = self._prepare( + request, timeout, metadata) + if rendezvous: + raise rendezvous + else: + completion_queue = cygrpc.CompletionQueue() + call = self._channel.create_call( + None, 0, completion_queue, self._method, None, deadline_timespec) + if credentials is not None: + call.set_credentials(credentials._credentials) + call.start_batch(cygrpc.Operations(operations), None) + _handle_event(completion_queue.poll(), state, self._response_deserializer) + return _end_unary_response_blocking(state, with_call, deadline) + + def future(self, request, timeout=None, metadata=None, credentials=None): + state, operations, deadline, deadline_timespec, rendezvous = self._prepare( + request, timeout, metadata) + if rendezvous: + return rendezvous + else: + call = self._create_managed_call( + None, 0, self._method, None, deadline_timespec) + if credentials is not None: + call.set_credentials(credentials._credentials) + event_handler = _event_handler(state, call, self._response_deserializer) + with state.condition: + call.start_batch(cygrpc.Operations(operations), event_handler) + return _Rendezvous(state, call, self._response_deserializer, deadline) + + +class _UnaryStreamMultiCallable(grpc.UnaryStreamMultiCallable): + + def __init__( + self, channel, create_managed_call, method, request_serializer, + response_deserializer): + self._channel = channel + self._create_managed_call = create_managed_call + self._method = method + self._request_serializer = request_serializer + self._response_deserializer = response_deserializer + + def __call__(self, request, timeout=None, metadata=None, credentials=None): + deadline, deadline_timespec, serialized_request, rendezvous = ( + _start_unary_request(request, timeout, self._request_serializer)) + if serialized_request is None: + raise rendezvous + else: + state = _RPCState(_UNARY_STREAM_INITIAL_DUE, None, None, None, None) + call = self._create_managed_call( + None, 0, self._method, None, deadline_timespec) + if credentials is not None: + call.set_credentials(credentials._credentials) + event_handler = _event_handler(state, call, self._response_deserializer) + with state.condition: + call.start_batch( + cygrpc.Operations( + (cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS),)), + event_handler) + operations = ( + cygrpc.operation_send_initial_metadata( + _common.metadata(metadata), _EMPTY_FLAGS), + cygrpc.operation_send_message(serialized_request, _EMPTY_FLAGS), + cygrpc.operation_send_close_from_client(_EMPTY_FLAGS), + cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS), + ) + call.start_batch(cygrpc.Operations(operations), event_handler) + return _Rendezvous(state, call, self._response_deserializer, deadline) + + +class _StreamUnaryMultiCallable(grpc.StreamUnaryMultiCallable): + + def __init__( + self, channel, create_managed_call, method, request_serializer, + response_deserializer): + self._channel = channel + self._create_managed_call = create_managed_call + self._method = method + self._request_serializer = request_serializer + self._response_deserializer = response_deserializer + + def __call__( + self, request_iterator, timeout=None, metadata=None, credentials=None, + with_call=False): + deadline, deadline_timespec = _deadline(timeout) + state = _RPCState(_STREAM_UNARY_INITIAL_DUE, None, None, None, None) + completion_queue = cygrpc.CompletionQueue() + call = self._channel.create_call( + None, 0, completion_queue, self._method, None, deadline_timespec) + if credentials is not None: + call.set_credentials(credentials._credentials) + with state.condition: + call.start_batch( + cygrpc.Operations( + (cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS),)), + None) + operations = ( + cygrpc.operation_send_initial_metadata( + _common.metadata(metadata), _EMPTY_FLAGS), + cygrpc.operation_receive_message(_EMPTY_FLAGS), + cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS), + ) + call.start_batch(cygrpc.Operations(operations), None) + _consume_request_iterator( + request_iterator, state, call, self._request_serializer) + while True: + event = completion_queue.poll() + with state.condition: + _handle_event(event, state, self._response_deserializer) + state.condition.notify_all() + if not state.due: + break + return _end_unary_response_blocking(state, with_call, deadline) + + def future( + self, request_iterator, timeout=None, metadata=None, credentials=None): + deadline, deadline_timespec = _deadline(timeout) + state = _RPCState(_STREAM_UNARY_INITIAL_DUE, None, None, None, None) + call = self._create_managed_call( + None, 0, self._method, None, deadline_timespec) + if credentials is not None: + call.set_credentials(credentials._credentials) + event_handler = _event_handler(state, call, self._response_deserializer) + with state.condition: + call.start_batch( + cygrpc.Operations( + (cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS),)), + event_handler) + operations = ( + cygrpc.operation_send_initial_metadata( + _common.metadata(metadata), _EMPTY_FLAGS), + cygrpc.operation_receive_message(_EMPTY_FLAGS), + cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS), + ) + call.start_batch(cygrpc.Operations(operations), event_handler) + _consume_request_iterator( + request_iterator, state, call, self._request_serializer) + return _Rendezvous(state, call, self._response_deserializer, deadline) + + +class _StreamStreamMultiCallable(grpc.StreamStreamMultiCallable): + + def __init__( + self, channel, create_managed_call, method, request_serializer, + response_deserializer): + self._channel = channel + self._create_managed_call = create_managed_call + self._method = method + self._request_serializer = request_serializer + self._response_deserializer = response_deserializer + + def __call__( + self, request_iterator, timeout=None, metadata=None, credentials=None): + deadline, deadline_timespec = _deadline(timeout) + state = _RPCState(_STREAM_STREAM_INITIAL_DUE, None, None, None, None) + call = self._create_managed_call( + None, 0, self._method, None, deadline_timespec) + if credentials is not None: + call.set_credentials(credentials._credentials) + event_handler = _event_handler(state, call, self._response_deserializer) + with state.condition: + call.start_batch( + cygrpc.Operations( + (cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS),)), + event_handler) + operations = ( + cygrpc.operation_send_initial_metadata( + _common.metadata(metadata), _EMPTY_FLAGS), + cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS), + ) + call.start_batch(cygrpc.Operations(operations), event_handler) + _consume_request_iterator( + request_iterator, state, call, self._request_serializer) + return _Rendezvous(state, call, self._response_deserializer, deadline) + + +class _ChannelCallState(object): + + def __init__(self, channel): + self.lock = threading.Lock() + self.channel = channel + self.completion_queue = cygrpc.CompletionQueue() + self.managed_calls = None + + +def _call_spin(state): + while True: + event = state.completion_queue.poll() + completed_call = event.tag(event) + if completed_call is not None: + with state.lock: + state.managed_calls.remove(completed_call) + if not state.managed_calls: + state.managed_calls = None + return + + +def _create_channel_managed_call(state): + def create_channel_managed_call(parent, flags, method, host, deadline): + """Creates a managed cygrpc.Call. + + Callers of this function must conduct at least one operation on the returned + call. The tags associated with operations conducted on the returned call + must be no-argument callables that return None to indicate that this channel + should continue polling for events associated with the call and return the + call itself to indicate that no more events associated with the call will be + generated. + + Args: + parent: A cygrpc.Call to be used as the parent of the created call. + flags: An integer bitfield of call flags. + method: The RPC method. + host: A host string for the created call. + deadline: A cygrpc.Timespec to be the deadline of the created call. + + Returns: + A cygrpc.Call with which to conduct an RPC. + """ + with state.lock: + call = state.channel.create_call( + parent, flags, state.completion_queue, method, host, deadline) + if state.managed_calls is None: + state.managed_calls = set((call,)) + spin_thread = threading.Thread(target=_call_spin, args=(state,)) + spin_thread.start() + else: + state.managed_calls.add(call) + return call + return create_channel_managed_call + + +class _ChannelConnectivityState(object): + + def __init__(self, channel): + self.lock = threading.Lock() + self.channel = channel + self.polling = False + self.connectivity = None + self.try_to_connect = False + self.callbacks_and_connectivities = [] + self.delivering = False + + +def _deliveries(state): + callbacks_needing_update = [] + for callback_and_connectivity in state.callbacks_and_connectivities: + callback, callback_connectivity, = callback_and_connectivity + if callback_connectivity is not state.connectivity: + callbacks_needing_update.append(callback) + callback_and_connectivity[1] = state.connectivity + return callbacks_needing_update + + +def _deliver(state, initial_connectivity, initial_callbacks): + connectivity = initial_connectivity + callbacks = initial_callbacks + while True: + for callback in callbacks: + callable_util.call_logging_exceptions( + callback, _CHANNEL_SUBSCRIPTION_CALLBACK_ERROR_LOG_MESSAGE, + connectivity) + with state.lock: + callbacks = _deliveries(state) + if callbacks: + connectivity = state.connectivity + else: + state.delivering = False + return + + +def _spawn_delivery(state, callbacks): + delivering_thread = threading.Thread( + target=_deliver, args=(state, state.connectivity, callbacks,)) + delivering_thread.start() + state.delivering = True + + +# NOTE(https://github.com/grpc/grpc/issues/3064): We'd rather not poll. +def _poll_connectivity(state, channel, initial_try_to_connect): + try_to_connect = initial_try_to_connect + connectivity = channel.check_connectivity_state(try_to_connect) + with state.lock: + state.connectivity = ( + _common.CYGRPC_CONNECTIVITY_STATE_TO_CHANNEL_CONNECTIVITY[ + connectivity]) + callbacks = tuple( + callback for callback, unused_but_known_to_be_none_connectivity + in state.callbacks_and_connectivities) + for callback_and_connectivity in state.callbacks_and_connectivities: + callback_and_connectivity[1] = state.connectivity + if callbacks: + _spawn_delivery(state, callbacks) + completion_queue = cygrpc.CompletionQueue() + while True: + channel.watch_connectivity_state( + connectivity, cygrpc.Timespec(time.time() + 0.2), + completion_queue, None) + event = completion_queue.poll() + with state.lock: + if not state.callbacks_and_connectivities and not state.try_to_connect: + state.polling = False + state.connectivity = None + break + try_to_connect = state.try_to_connect + state.try_to_connect = False + if event.success or try_to_connect: + connectivity = channel.check_connectivity_state(try_to_connect) + with state.lock: + state.connectivity = ( + _common.CYGRPC_CONNECTIVITY_STATE_TO_CHANNEL_CONNECTIVITY[ + connectivity]) + if not state.delivering: + callbacks = _deliveries(state) + if callbacks: + _spawn_delivery(state, callbacks) + + +def _subscribe(state, callback, try_to_connect): + with state.lock: + if not state.callbacks_and_connectivities and not state.polling: + polling_thread = threading.Thread( + target=_poll_connectivity, + args=(state, state.channel, bool(try_to_connect))) + polling_thread.start() + state.polling = True + state.callbacks_and_connectivities.append([callback, None]) + elif not state.delivering and state.connectivity is not None: + _spawn_delivery(state, (callback,)) + state.try_to_connect |= bool(try_to_connect) + state.callbacks_and_connectivities.append( + [callback, state.connectivity]) + else: + state.try_to_connect |= bool(try_to_connect) + state.callbacks_and_connectivities.append([callback, None]) + + +def _unsubscribe(state, callback): + with state.lock: + for index, (subscribed_callback, unused_connectivity) in enumerate( + state.callbacks_and_connectivities): + if callback == subscribed_callback: + state.callbacks_and_connectivities.pop(index) + break + + +def _moot(state): + with state.lock: + del state.callbacks_and_connectivities[:] + + +def _options(options): + if options is None: + pairs = ((cygrpc.ChannelArgKey.primary_user_agent_string, _USER_AGENT),) + else: + pairs = list(options) + [ + (cygrpc.ChannelArgKey.primary_user_agent_string, _USER_AGENT)] + return cygrpc.ChannelArgs( + cygrpc.ChannelArg(arg_name, arg_value) for arg_name, arg_value in pairs) + + +class Channel(grpc.Channel): + + def __init__(self, target, options, credentials): + self._channel = cygrpc.Channel(target, _options(options), credentials) + self._call_state = _ChannelCallState(self._channel) + self._connectivity_state = _ChannelConnectivityState(self._channel) + + def subscribe(self, callback, try_to_connect=None): + _subscribe(self._connectivity_state, callback, try_to_connect) + + def unsubscribe(self, callback): + _unsubscribe(self._connectivity_state, callback) + + def unary_unary( + self, method, request_serializer=None, response_deserializer=None): + return _UnaryUnaryMultiCallable( + self._channel, _create_channel_managed_call(self._call_state), method, + request_serializer, response_deserializer) + + def unary_stream( + self, method, request_serializer=None, response_deserializer=None): + return _UnaryStreamMultiCallable( + self._channel, _create_channel_managed_call(self._call_state), method, + request_serializer, response_deserializer) + + def stream_unary( + self, method, request_serializer=None, response_deserializer=None): + return _StreamUnaryMultiCallable( + self._channel, _create_channel_managed_call(self._call_state), method, + request_serializer, response_deserializer) + + def stream_stream( + self, method, request_serializer=None, response_deserializer=None): + return _StreamStreamMultiCallable( + self._channel, _create_channel_managed_call(self._call_state), method, + request_serializer, response_deserializer) + + def __del__(self): + _moot(self._connectivity_state) diff --git a/src/python/grpcio/grpc/_common.py b/src/python/grpcio/grpc/_common.py new file mode 100644 index 0000000000..f351bea9e3 --- /dev/null +++ b/src/python/grpcio/grpc/_common.py @@ -0,0 +1,154 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Shared implementation.""" + +import logging +import threading +import time + +import six + +import grpc +from grpc._cython import cygrpc + +_EMPTY_METADATA = cygrpc.Metadata(()) + +CYGRPC_CONNECTIVITY_STATE_TO_CHANNEL_CONNECTIVITY = { + cygrpc.ConnectivityState.idle: grpc.ChannelConnectivity.IDLE, + cygrpc.ConnectivityState.connecting: grpc.ChannelConnectivity.CONNECTING, + cygrpc.ConnectivityState.ready: grpc.ChannelConnectivity.READY, + cygrpc.ConnectivityState.transient_failure: + grpc.ChannelConnectivity.TRANSIENT_FAILURE, + cygrpc.ConnectivityState.shutdown: + grpc.ChannelConnectivity.SHUTDOWN, +} + +CYGRPC_STATUS_CODE_TO_STATUS_CODE = { + cygrpc.StatusCode.ok: grpc.StatusCode.OK, + cygrpc.StatusCode.cancelled: grpc.StatusCode.CANCELLED, + cygrpc.StatusCode.unknown: grpc.StatusCode.UNKNOWN, + cygrpc.StatusCode.invalid_argument: grpc.StatusCode.INVALID_ARGUMENT, + cygrpc.StatusCode.deadline_exceeded: grpc.StatusCode.DEADLINE_EXCEEDED, + cygrpc.StatusCode.not_found: grpc.StatusCode.NOT_FOUND, + cygrpc.StatusCode.already_exists: grpc.StatusCode.ALREADY_EXISTS, + cygrpc.StatusCode.permission_denied: grpc.StatusCode.PERMISSION_DENIED, + cygrpc.StatusCode.unauthenticated: grpc.StatusCode.UNAUTHENTICATED, + cygrpc.StatusCode.resource_exhausted: grpc.StatusCode.RESOURCE_EXHAUSTED, + cygrpc.StatusCode.failed_precondition: grpc.StatusCode.FAILED_PRECONDITION, + cygrpc.StatusCode.aborted: grpc.StatusCode.ABORTED, + cygrpc.StatusCode.out_of_range: grpc.StatusCode.OUT_OF_RANGE, + cygrpc.StatusCode.unimplemented: grpc.StatusCode.UNIMPLEMENTED, + cygrpc.StatusCode.internal: grpc.StatusCode.INTERNAL, + cygrpc.StatusCode.unavailable: grpc.StatusCode.UNAVAILABLE, + cygrpc.StatusCode.data_loss: grpc.StatusCode.DATA_LOSS, +} +STATUS_CODE_TO_CYGRPC_STATUS_CODE = { + grpc_code: cygrpc_code + for cygrpc_code, grpc_code in six.iteritems( + CYGRPC_STATUS_CODE_TO_STATUS_CODE) +} + + +def metadata(application_metadata): + return _EMPTY_METADATA if application_metadata is None else cygrpc.Metadata( + cygrpc.Metadatum(key, value) for key, value in application_metadata) + + +def _transform(message, transformer, exception_message): + if transformer is None: + return message + else: + try: + return transformer(message) + except Exception: # pylint: disable=broad-except + logging.exception(exception_message) + return None + + +def serialize(message, serializer): + return _transform(message, serializer, 'Exception serializing message!') + + +def deserialize(serialized_message, deserializer): + return _transform(serialized_message, deserializer, + 'Exception deserializing message!') + + +def _encode(s): + if isinstance(s, bytes): + return s + else: + return s.encode('ascii') + + +def fully_qualified_method(group, method): + group = _encode(group) + method = _encode(method) + return b'/' + group + b'/' + method + + +class CleanupThread(threading.Thread): + """A threading.Thread subclass supporting custom behavior on join(). + + On Python Interpreter exit, Python will attempt to join outstanding threads + prior to garbage collection. We may need to do additional cleanup, and + we accomplish this by overriding the join() method. + """ + + def __init__(self, behavior, group=None, target=None, name=None, + args=(), kwargs={}): + """Constructor. + + Args: + behavior (function): Function called on join() with a single + argument, timeout, indicating the maximum duration of + `behavior`, or None indicating `behavior` has no deadline. + `behavior` must be idempotent. + group (None): should be None. Reseved for future extensions + when ThreadGroup is implemented. + target (function): The function to invoke when this thread is + run. Defaults to None. + name (str): The name of this thread. Defaults to None. + args (tuple[object]): A tuple of arguments to pass to `target`. + kwargs (dict[str,object]): A dictionary of keyword arguments to + pass to `target`. + """ + super(CleanupThread, self).__init__(group=group, target=target, + name=name, args=args, kwargs=kwargs) + self._behavior = behavior + + def join(self, timeout=None): + start_time = time.time() + self._behavior(timeout) + end_time = time.time() + if timeout is not None: + timeout -= end_time - start_time + timeout = max(timeout, 0) + super(CleanupThread, self).join(timeout) diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/call.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/call.pyx.pxi index 1bfe6344e0..a09bbc75fe 100644 --- a/src/python/grpcio/grpc/_cython/_cygrpc/call.pyx.pxi +++ b/src/python/grpcio/grpc/_cython/_cygrpc/call.pyx.pxi @@ -55,6 +55,7 @@ cdef class Call: def cancel( self, grpc_status_code error_code=GRPC_STATUS__DO_NOT_USE, details=None): + details = str_to_bytes(details) if not self.is_valid: raise ValueError("invalid call object cannot be used from Python") if (details is None) != (error_code == GRPC_STATUS__DO_NOT_USE): @@ -63,12 +64,6 @@ cdef class Call: cdef grpc_call_error result cdef char *c_details = NULL if error_code != GRPC_STATUS__DO_NOT_USE: - if isinstance(details, bytes): - pass - elif isinstance(details, basestring): - details = details.encode() - else: - raise TypeError("expected details to be str or bytes") self.references.append(details) c_details = details with nogil: diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/channel.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/channel.pyx.pxi index c26bc083cf..866cff0d01 100644 --- a/src/python/grpcio/grpc/_cython/_cygrpc/channel.pyx.pxi +++ b/src/python/grpcio/grpc/_cython/_cygrpc/channel.pyx.pxi @@ -34,18 +34,13 @@ cdef class Channel: def __cinit__(self, target, ChannelArgs arguments=None, ChannelCredentials channel_credentials=None): + target = str_to_bytes(target) cdef grpc_channel_args *c_arguments = NULL cdef char *c_target = NULL self.c_channel = NULL self.references = [] if arguments is not None: c_arguments = &arguments.c_args - if isinstance(target, bytes): - pass - elif isinstance(target, basestring): - target = target.encode() - else: - raise TypeError("expected target to be str or bytes") c_target = target if channel_credentials is None: with nogil: @@ -62,25 +57,14 @@ cdef class Channel: def create_call(self, Call parent, int flags, CompletionQueue queue not None, method, host, Timespec deadline not None): + method = str_to_bytes(method) + host = str_to_bytes(host) if queue.is_shutting_down: raise ValueError("queue must not be shutting down or shutdown") - if isinstance(method, bytes): - pass - elif isinstance(method, basestring): - method = method.encode() - else: - raise TypeError("expected method to be str or bytes") cdef char *method_c_string = method cdef char *host_c_string = NULL - if host is None: - pass - elif isinstance(host, bytes): + if host is not None: host_c_string = host - elif isinstance(host, basestring): - host = host.encode() - host_c_string = host - else: - raise TypeError("expected host to be str, bytes, or None") cdef Call operation_call = Call() operation_call.references = [self, method, host, queue] cdef grpc_call *parent_call = NULL diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/completion_queue.pxd.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/completion_queue.pxd.pxi index a67c963684..01089c3dc0 100644 --- a/src/python/grpcio/grpc/_cython/_cygrpc/completion_queue.pxd.pxi +++ b/src/python/grpcio/grpc/_cython/_cygrpc/completion_queue.pxd.pxi @@ -31,9 +31,6 @@ cdef class CompletionQueue: cdef grpc_completion_queue *c_completion_queue - cdef object pluck_condition - cdef int num_plucking - cdef int num_polling cdef bint is_shutting_down cdef bint is_shutdown diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/completion_queue.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/completion_queue.pyx.pxi index cdae39d519..90266516fe 100644 --- a/src/python/grpcio/grpc/_cython/_cygrpc/completion_queue.pyx.pxi +++ b/src/python/grpcio/grpc/_cython/_cygrpc/completion_queue.pyx.pxi @@ -32,6 +32,8 @@ cimport cpython import threading import time +cdef int _INTERRUPT_CHECK_PERIOD_MS = 200 + cdef class CompletionQueue: @@ -40,9 +42,6 @@ cdef class CompletionQueue: self.c_completion_queue = grpc_completion_queue_create(NULL) self.is_shutting_down = False self.is_shutdown = False - self.pluck_condition = threading.Condition() - self.num_plucking = 0 - self.num_polling = 0 cdef _interpret_event(self, grpc_event event): cdef OperationTag tag = None @@ -83,45 +82,27 @@ cdef class CompletionQueue: def poll(self, Timespec deadline=None): # We name this 'poll' to avoid problems with CPython's expectations for # 'special' methods (like next and __next__). + cdef gpr_timespec c_increment + cdef gpr_timespec c_timeout cdef gpr_timespec c_deadline with nogil: + c_increment = gpr_time_from_millis(_INTERRUPT_CHECK_PERIOD_MS, GPR_TIMESPAN) c_deadline = gpr_inf_future(GPR_CLOCK_REALTIME) - if deadline is not None: - c_deadline = deadline.c_time - cdef grpc_event event - - # Poll within a critical section to detect contention - with self.pluck_condition: - assert self.num_plucking == 0, 'cannot simultaneously pluck and poll' - self.num_polling += 1 - with nogil: - event = grpc_completion_queue_next( - self.c_completion_queue, c_deadline, NULL) - with self.pluck_condition: - self.num_polling -= 1 - return self._interpret_event(event) - - def pluck(self, OperationTag tag, Timespec deadline=None): - # Plucking a 'None' tag is equivalent to passing control to GRPC core until - # the deadline. - cdef gpr_timespec c_deadline = gpr_inf_future( - GPR_CLOCK_REALTIME) - if deadline is not None: - c_deadline = deadline.c_time - cdef grpc_event event - - # Pluck within a critical section to detect contention - with self.pluck_condition: - assert self.num_polling == 0, 'cannot simultaneously pluck and poll' - assert self.num_plucking < GRPC_MAX_COMPLETION_QUEUE_PLUCKERS, ( - 'cannot pluck more than {} times simultaneously'.format( - GRPC_MAX_COMPLETION_QUEUE_PLUCKERS)) - self.num_plucking += 1 - with nogil: - event = grpc_completion_queue_pluck( - self.c_completion_queue, <cpython.PyObject *>tag, c_deadline, NULL) - with self.pluck_condition: - self.num_plucking -= 1 + if deadline is not None: + c_deadline = deadline.c_time + + while True: + c_timeout = gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), c_increment) + if gpr_time_cmp(c_timeout, c_deadline) > 0: + c_timeout = c_deadline + event = grpc_completion_queue_next( + self.c_completion_queue, c_timeout, NULL) + if event.type != GRPC_QUEUE_TIMEOUT or gpr_time_cmp(c_timeout, c_deadline) == 0: + break; + + # Handle any signals + with gil: + cpython.PyErr_CheckSignals() return self._interpret_event(event) def shutdown(self): diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/credentials.pxd.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/credentials.pxd.pxi index c793c8f5e5..d377a67520 100644 --- a/src/python/grpcio/grpc/_cython/_cygrpc/credentials.pxd.pxi +++ b/src/python/grpcio/grpc/_cython/_cygrpc/credentials.pxd.pxi @@ -54,7 +54,7 @@ cdef class ServerCredentials: cdef class CredentialsMetadataPlugin: cdef object plugin_callback - cdef str plugin_name + cdef bytes plugin_name cdef grpc_metadata_credentials_plugin make_c_plugin(self) @@ -68,4 +68,4 @@ cdef void plugin_get_metadata( void *state, grpc_auth_metadata_context context, grpc_credentials_plugin_metadata_cb cb, void *user_data) with gil -cdef void plugin_destroy_c_plugin_state(void *state) +cdef void plugin_destroy_c_plugin_state(void *state) with gil diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/credentials.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/credentials.pyx.pxi index 94d13b5999..470382d609 100644 --- a/src/python/grpcio/grpc/_cython/_cygrpc/credentials.pyx.pxi +++ b/src/python/grpcio/grpc/_cython/_cygrpc/credentials.pyx.pxi @@ -82,7 +82,7 @@ cdef class ServerCredentials: cdef class CredentialsMetadataPlugin: - def __cinit__(self, object plugin_callback, str name): + def __cinit__(self, object plugin_callback, name): """ Args: plugin_callback (callable): Callback accepting a service URL (str/bytes) @@ -93,6 +93,7 @@ cdef class CredentialsMetadataPlugin: successful). name (str): Plugin name. """ + name = str_to_bytes(name) if not callable(plugin_callback): raise ValueError('expected callable plugin_callback') self.plugin_callback = plugin_callback @@ -129,7 +130,8 @@ cdef void plugin_get_metadata( grpc_credentials_plugin_metadata_cb cb, void *user_data) with gil: def python_callback( Metadata metadata, grpc_status_code status, - const char *error_details): + error_details): + error_details = str_to_bytes(error_details) cb(user_data, metadata.c_metadata_array.metadata, metadata.c_metadata_array.count, status, error_details) cdef CredentialsMetadataPlugin self = <CredentialsMetadataPlugin>state @@ -137,7 +139,7 @@ cdef void plugin_get_metadata( cy_context.context = context self.plugin_callback(cy_context, python_callback) -cdef void plugin_destroy_c_plugin_state(void *state): +cdef void plugin_destroy_c_plugin_state(void *state) with gil: cpython.Py_DECREF(<CredentialsMetadataPlugin>state) def channel_credentials_google_default(): @@ -148,14 +150,7 @@ def channel_credentials_google_default(): def channel_credentials_ssl(pem_root_certificates, SslPemKeyCertPair ssl_pem_key_cert_pair): - if pem_root_certificates is None: - pass - elif isinstance(pem_root_certificates, bytes): - pass - elif isinstance(pem_root_certificates, basestring): - pem_root_certificates = pem_root_certificates.encode() - else: - raise TypeError("expected str or bytes for pem_root_certificates") + pem_root_certificates = str_to_bytes(pem_root_certificates) cdef ChannelCredentials credentials = ChannelCredentials() cdef const char *c_pem_root_certificates = NULL if pem_root_certificates is not None: @@ -207,12 +202,7 @@ def call_credentials_google_compute_engine(): def call_credentials_service_account_jwt_access( json_key, Timespec token_lifetime not None): - if isinstance(json_key, bytes): - pass - elif isinstance(json_key, basestring): - json_key = json_key.encode() - else: - raise TypeError("expected json_key to be str or bytes") + json_key = str_to_bytes(json_key) cdef CallCredentials credentials = CallCredentials() cdef char *json_key_c_string = json_key with nogil: @@ -223,12 +213,7 @@ def call_credentials_service_account_jwt_access( return credentials def call_credentials_google_refresh_token(json_refresh_token): - if isinstance(json_refresh_token, bytes): - pass - elif isinstance(json_refresh_token, basestring): - json_refresh_token = json_refresh_token.encode() - else: - raise TypeError("expected json_refresh_token to be str or bytes") + json_refresh_token = str_to_bytes(json_refresh_token) cdef CallCredentials credentials = CallCredentials() cdef char *json_refresh_token_c_string = json_refresh_token with nogil: @@ -238,18 +223,8 @@ def call_credentials_google_refresh_token(json_refresh_token): return credentials def call_credentials_google_iam(authorization_token, authority_selector): - if isinstance(authorization_token, bytes): - pass - elif isinstance(authorization_token, basestring): - authorization_token = authorization_token.encode() - else: - raise TypeError("expected authorization_token to be str or bytes") - if isinstance(authority_selector, bytes): - pass - elif isinstance(authority_selector, basestring): - authority_selector = authority_selector.encode() - else: - raise TypeError("expected authority_selector to be str or bytes") + authorization_token = str_to_bytes(authorization_token) + authority_selector = str_to_bytes(authority_selector) cdef CallCredentials credentials = CallCredentials() cdef char *authorization_token_c_string = authorization_token cdef char *authority_selector_c_string = authority_selector @@ -272,16 +247,10 @@ def call_credentials_metadata_plugin(CredentialsMetadataPlugin plugin): def server_credentials_ssl(pem_root_certs, pem_key_cert_pairs, bint force_client_auth): + pem_root_certs = str_to_bytes(pem_root_certs) cdef char *c_pem_root_certs = NULL - if pem_root_certs is None: - pass - elif isinstance(pem_root_certs, bytes): - c_pem_root_certs = pem_root_certs - elif isinstance(pem_root_certs, basestring): - pem_root_certs = pem_root_certs.encode() + if pem_root_certs is not None: c_pem_root_certs = pem_root_certs - else: - raise TypeError("expected pem_root_certs to be str or bytes") pem_key_cert_pairs = list(pem_key_cert_pairs) for pair in pem_key_cert_pairs: if not isinstance(pair, SslPemKeyCertPair): diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi index 66e6e6b549..168b9751aa 100644 --- a/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi +++ b/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi @@ -80,6 +80,12 @@ cdef extern from "grpc/_cython/loader.h": gpr_timespec gpr_convert_clock_type(gpr_timespec t, gpr_clock_type target_clock) nogil + gpr_timespec gpr_time_from_millis(int64_t ms, gpr_clock_type type) nogil + + gpr_timespec gpr_time_add(gpr_timespec a, gpr_timespec b) nogil + + int gpr_time_cmp(gpr_timespec a, gpr_timespec b) nogil + ctypedef enum grpc_status_code: GRPC_STATUS_OK GRPC_STATUS_CANCELLED @@ -208,7 +214,7 @@ cdef extern from "grpc/_cython/loader.h": GRPC_CHANNEL_CONNECTING GRPC_CHANNEL_READY GRPC_CHANNEL_TRANSIENT_FAILURE - GRPC_CHANNEL_FATAL_FAILURE + GRPC_CHANNEL_SHUTDOWN ctypedef struct grpc_metadata: const char *key @@ -336,6 +342,8 @@ cdef extern from "grpc/_cython/loader.h": void grpc_server_register_completion_queue(grpc_server *server, grpc_completion_queue *cq, void *reserved) nogil + void grpc_server_register_non_listening_completion_queue( + grpc_server *server, grpc_completion_queue *cq, void *reserved) nogil int grpc_server_add_insecure_http2_port( grpc_server *server, const char *addr) nogil void grpc_server_start(grpc_server *server) nogil diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/grpc_string.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/grpc_string.pyx.pxi new file mode 100644 index 0000000000..274f038e0a --- /dev/null +++ b/src/python/grpcio/grpc/_cython/_cygrpc/grpc_string.pyx.pxi @@ -0,0 +1,39 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + +# This function will ascii encode unicode string inputs if neccesary. +# In Python3, unicode strings are the default str type. +cdef bytes str_to_bytes(object s): + if s is None or isinstance(s, bytes): + return s + elif isinstance(s, unicode): + return s.encode('ascii') + else: + raise TypeError('Expected bytes, str, or unicode, not {}'.format(type(s))) diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi index c7539f0d49..0055d0d3a2 100644 --- a/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi +++ b/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi @@ -33,7 +33,7 @@ class ConnectivityState: connecting = GRPC_CHANNEL_CONNECTING ready = GRPC_CHANNEL_READY transient_failure = GRPC_CHANNEL_TRANSIENT_FAILURE - fatal_failure = GRPC_CHANNEL_FATAL_FAILURE + shutdown = GRPC_CHANNEL_SHUTDOWN class ChannelArgKey: @@ -235,18 +235,13 @@ cdef class ByteBuffer: if data is None: self.c_byte_buffer = NULL return - if isinstance(data, bytes): - pass - elif isinstance(data, basestring): - data = data.encode() - elif isinstance(data, ByteBuffer): + if isinstance(data, ByteBuffer): data = (<ByteBuffer>data).bytes() if data is None: self.c_byte_buffer = NULL return else: - raise TypeError("expected value to be of type str, bytes, or " - "ByteBuffer, not {}".format(type(data))) + data = str_to_bytes(data) cdef char *c_data = data cdef gpr_slice data_slice @@ -274,6 +269,7 @@ cdef class ByteBuffer: data_slice_length = gpr_slice_length(data_slice) with gil: result += (<char *>data_slice_pointer)[:data_slice_length] + gpr_slice_unref(data_slice) with nogil: grpc_byte_buffer_reader_destroy(&reader) return bytes(result) @@ -301,19 +297,8 @@ cdef class ByteBuffer: cdef class SslPemKeyCertPair: def __cinit__(self, private_key, certificate_chain): - if isinstance(private_key, bytes): - self.private_key = private_key - elif isinstance(private_key, basestring): - self.private_key = private_key.encode() - else: - raise TypeError("expected private_key to be of type str or bytes") - if isinstance(certificate_chain, bytes): - self.certificate_chain = certificate_chain - elif isinstance(certificate_chain, basestring): - self.certificate_chain = certificate_chain.encode() - else: - raise TypeError("expected certificate_chain to be of type str or bytes " - "or int") + self.private_key = str_to_bytes(private_key) + self.certificate_chain = str_to_bytes(certificate_chain) self.c_pair.private_key = self.private_key self.c_pair.certificate_chain = self.certificate_chain @@ -321,27 +306,16 @@ cdef class SslPemKeyCertPair: cdef class ChannelArg: def __cinit__(self, key, value): - if isinstance(key, bytes): - self.key = key - elif isinstance(key, basestring): - self.key = key.encode() - else: - raise TypeError("expected key to be of type str or bytes") - if isinstance(value, bytes): - self.value = value - self.c_arg.type = GRPC_ARG_STRING - self.c_arg.value.string = self.value - elif isinstance(value, basestring): - self.value = value.encode() - self.c_arg.type = GRPC_ARG_STRING - self.c_arg.value.string = self.value - elif isinstance(value, int): + self.key = str_to_bytes(key) + self.c_arg.key = self.key + if isinstance(value, int): self.value = int(value) self.c_arg.type = GRPC_ARG_INTEGER self.c_arg.value.integer = self.value else: - raise TypeError("expected value to be of type str or bytes or int") - self.c_arg.key = self.key + self.value = str_to_bytes(value) + self.c_arg.type = GRPC_ARG_STRING + self.c_arg.value.string = self.value cdef class ChannelArgs: @@ -374,18 +348,8 @@ cdef class ChannelArgs: cdef class Metadatum: def __cinit__(self, key, value): - if isinstance(key, bytes): - self._key = key - elif isinstance(key, basestring): - self._key = key.encode() - else: - raise TypeError("expected key to be of type str or bytes") - if isinstance(value, bytes): - self._value = value - elif isinstance(value, basestring): - self._value = value.encode() - else: - raise TypeError("expected value to be of type str or bytes") + self._key = str_to_bytes(key) + self._value = str_to_bytes(value) self.c_metadata.key = self._key self.c_metadata.value = self._value self.c_metadata.value_length = len(self._value) @@ -600,12 +564,7 @@ def operation_send_close_from_client(int flags): def operation_send_status_from_server( Metadata metadata, grpc_status_code code, details, int flags): - if isinstance(details, bytes): - pass - elif isinstance(details, basestring): - details = details.encode() - else: - raise TypeError("expected a str or bytes object for details") + details = str_to_bytes(details) cdef Operation op = Operation() op.c_op.type = GRPC_OP_SEND_STATUS_FROM_SERVER op.c_op.flags = flags diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/server.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/server.pyx.pxi index 8419a59068..42afeb8498 100644 --- a/src/python/grpcio/grpc/_cython/_cygrpc/server.pyx.pxi +++ b/src/python/grpcio/grpc/_cython/_cygrpc/server.pyx.pxi @@ -81,25 +81,29 @@ cdef class Server: self.c_server, queue.c_completion_queue, NULL) self.registered_completion_queues.append(queue) + def register_non_listening_completion_queue( + self, CompletionQueue queue not None): + if self.is_started: + raise ValueError("cannot register completion queues after start") + with nogil: + grpc_server_register_non_listening_completion_queue( + self.c_server, queue.c_completion_queue, NULL) + self.registered_completion_queues.append(queue) + def start(self): if self.is_started: raise ValueError("the server has already started") self.backup_shutdown_queue = CompletionQueue() - self.register_completion_queue(self.backup_shutdown_queue) + self.register_non_listening_completion_queue(self.backup_shutdown_queue) self.is_started = True with nogil: grpc_server_start(self.c_server) # Ensure the core has gotten a chance to do the start-up work - self.backup_shutdown_queue.pluck(None, Timespec(None)) + self.backup_shutdown_queue.poll(Timespec(None)) def add_http2_port(self, address, ServerCredentials server_credentials=None): - if isinstance(address, bytes): - pass - elif isinstance(address, basestring): - address = address.encode() - else: - raise TypeError("expected address to be a str or bytes") + address = str_to_bytes(address) self.references.append(address) cdef int result cdef char *address_c_string = address @@ -169,4 +173,3 @@ cdef class Server: time.sleep(0) with nogil: grpc_server_destroy(self.c_server) - diff --git a/src/python/grpcio/grpc/_cython/cygrpc.pyx b/src/python/grpcio/grpc/_cython/cygrpc.pyx index 8823ea5ef5..cf146f5a04 100644 --- a/src/python/grpcio/grpc/_cython/cygrpc.pyx +++ b/src/python/grpcio/grpc/_cython/cygrpc.pyx @@ -35,6 +35,7 @@ import sys # TODO(atash): figure out why the coverage tool gets confused about the Cython # coverage plugin when the following files don't have a '.pxi' suffix. +include "grpc/_cython/_cygrpc/grpc_string.pyx.pxi" include "grpc/_cython/_cygrpc/call.pyx.pxi" include "grpc/_cython/_cygrpc/channel.pyx.pxi" include "grpc/_cython/_cygrpc/credentials.pyx.pxi" diff --git a/src/python/grpcio/grpc/_cython/imports.generated.c b/src/python/grpcio/grpc/_cython/imports.generated.c index 3cf4cb491a..8437e74ba0 100644 --- a/src/python/grpcio/grpc/_cython/imports.generated.c +++ b/src/python/grpcio/grpc/_cython/imports.generated.c @@ -35,7 +35,7 @@ #include "imports.generated.h" -#ifdef GPR_WIN32 +#ifdef GPR_WINDOWS census_initialize_type census_initialize_import; census_shutdown_type census_shutdown_import; @@ -126,7 +126,8 @@ grpc_header_key_is_legal_type grpc_header_key_is_legal_import; grpc_header_nonbin_value_is_legal_type grpc_header_nonbin_value_is_legal_import; grpc_is_binary_header_type grpc_is_binary_header_import; grpc_call_error_to_string_type grpc_call_error_to_string_import; -grpc_cronet_secure_channel_create_type grpc_cronet_secure_channel_create_import; +grpc_insecure_channel_create_from_fd_type grpc_insecure_channel_create_from_fd_import; +grpc_server_add_insecure_channel_from_fd_type grpc_server_add_insecure_channel_from_fd_import; grpc_auth_property_iterator_next_type grpc_auth_property_iterator_next_import; grpc_auth_context_property_iterator_type grpc_auth_context_property_iterator_import; grpc_auth_context_peer_identity_type grpc_auth_context_peer_identity_import; @@ -400,7 +401,8 @@ void pygrpc_load_imports(HMODULE library) { grpc_header_nonbin_value_is_legal_import = (grpc_header_nonbin_value_is_legal_type) GetProcAddress(library, "grpc_header_nonbin_value_is_legal"); grpc_is_binary_header_import = (grpc_is_binary_header_type) GetProcAddress(library, "grpc_is_binary_header"); grpc_call_error_to_string_import = (grpc_call_error_to_string_type) GetProcAddress(library, "grpc_call_error_to_string"); - grpc_cronet_secure_channel_create_import = (grpc_cronet_secure_channel_create_type) GetProcAddress(library, "grpc_cronet_secure_channel_create"); + grpc_insecure_channel_create_from_fd_import = (grpc_insecure_channel_create_from_fd_type) GetProcAddress(library, "grpc_insecure_channel_create_from_fd"); + grpc_server_add_insecure_channel_from_fd_import = (grpc_server_add_insecure_channel_from_fd_type) GetProcAddress(library, "grpc_server_add_insecure_channel_from_fd"); grpc_auth_property_iterator_next_import = (grpc_auth_property_iterator_next_type) GetProcAddress(library, "grpc_auth_property_iterator_next"); grpc_auth_context_property_iterator_import = (grpc_auth_context_property_iterator_type) GetProcAddress(library, "grpc_auth_context_property_iterator"); grpc_auth_context_peer_identity_import = (grpc_auth_context_peer_identity_type) GetProcAddress(library, "grpc_auth_context_peer_identity"); @@ -585,4 +587,4 @@ void pygrpc_load_imports(HMODULE library) { } #endif /* __cpluslus */ -#endif /* !GPR_WIN32 */ +#endif /* !GPR_WINDOWS */ diff --git a/src/python/grpcio/grpc/_cython/imports.generated.h b/src/python/grpcio/grpc/_cython/imports.generated.h index 8a3e4bf86e..d52e8591b3 100644 --- a/src/python/grpcio/grpc/_cython/imports.generated.h +++ b/src/python/grpcio/grpc/_cython/imports.generated.h @@ -36,14 +36,14 @@ #include <grpc/support/port_platform.h> -#ifdef GPR_WIN32 +#ifdef GPR_WINDOWS #include <windows.h> #include <grpc/census.h> #include <grpc/compression.h> #include <grpc/grpc.h> -#include <grpc/grpc_cronet.h> +#include <grpc/grpc_posix.h> #include <grpc/grpc_security.h> #include <grpc/impl/codegen/alloc.h> #include <grpc/impl/codegen/byte_buffer.h> @@ -57,7 +57,7 @@ #include <grpc/support/cpu.h> #include <grpc/support/histogram.h> #include <grpc/support/host_port.h> -#include <grpc/support/log_win32.h> +#include <grpc/support/log_windows.h> #include <grpc/support/string_util.h> #include <grpc/support/subprocess.h> #include <grpc/support/thd.h> @@ -329,9 +329,12 @@ extern grpc_is_binary_header_type grpc_is_binary_header_import; typedef const char *(*grpc_call_error_to_string_type)(grpc_call_error error); extern grpc_call_error_to_string_type grpc_call_error_to_string_import; #define grpc_call_error_to_string grpc_call_error_to_string_import -typedef grpc_channel *(*grpc_cronet_secure_channel_create_type)(void *engine, const char *target, const grpc_channel_args *args, void *reserved); -extern grpc_cronet_secure_channel_create_type grpc_cronet_secure_channel_create_import; -#define grpc_cronet_secure_channel_create grpc_cronet_secure_channel_create_import +typedef grpc_channel *(*grpc_insecure_channel_create_from_fd_type)(const char *target, int fd, const grpc_channel_args *args); +extern grpc_insecure_channel_create_from_fd_type grpc_insecure_channel_create_from_fd_import; +#define grpc_insecure_channel_create_from_fd grpc_insecure_channel_create_from_fd_import +typedef void(*grpc_server_add_insecure_channel_from_fd_type)(grpc_server *server, grpc_completion_queue *cq, int fd); +extern grpc_server_add_insecure_channel_from_fd_type grpc_server_add_insecure_channel_from_fd_import; +#define grpc_server_add_insecure_channel_from_fd grpc_server_add_insecure_channel_from_fd_import typedef const grpc_auth_property *(*grpc_auth_property_iterator_next_type)(grpc_auth_property_iterator *it); extern grpc_auth_property_iterator_next_type grpc_auth_property_iterator_next_import; #define grpc_auth_property_iterator_next grpc_auth_property_iterator_next_import @@ -479,7 +482,7 @@ extern grpc_byte_buffer_reader_readall_type grpc_byte_buffer_reader_readall_impo typedef grpc_byte_buffer *(*grpc_raw_byte_buffer_from_reader_type)(grpc_byte_buffer_reader *reader); extern grpc_raw_byte_buffer_from_reader_type grpc_raw_byte_buffer_from_reader_import; #define grpc_raw_byte_buffer_from_reader grpc_raw_byte_buffer_from_reader_import -typedef void(*gpr_log_type)(const char *file, int line, gpr_log_severity severity, const char *format, ...); +typedef void(*gpr_log_type)(const char *file, int line, gpr_log_severity severity, const char *format, ...) GPRC_PRINT_FORMAT_CHECK(4, 5); extern gpr_log_type gpr_log_import; #define gpr_log gpr_log_import typedef void(*gpr_log_message_type)(const char *file, int line, gpr_log_severity severity, const char *message); @@ -824,7 +827,7 @@ extern gpr_format_message_type gpr_format_message_import; typedef char *(*gpr_strdup_type)(const char *src); extern gpr_strdup_type gpr_strdup_import; #define gpr_strdup gpr_strdup_import -typedef int(*gpr_asprintf_type)(char **strp, const char *format, ...); +typedef int(*gpr_asprintf_type)(char **strp, const char *format, ...) GPRC_PRINT_FORMAT_CHECK(2, 3); extern gpr_asprintf_type gpr_asprintf_import; #define gpr_asprintf gpr_asprintf_import typedef const char *(*gpr_subprocess_binary_extension_type)(); @@ -877,7 +880,7 @@ void pygrpc_load_imports(HMODULE library); } #endif /* __cpluslus */ -#else /* !GPR_WIN32 */ +#else /* !GPR_WINDOWS */ #include <grpc/byte_buffer.h> #include <grpc/byte_buffer_reader.h> @@ -889,6 +892,6 @@ void pygrpc_load_imports(HMODULE library); #include <grpc/support/time.h> #include <grpc/status.h> -#endif /* !GPR_WIN32 */ +#endif /* !GPR_WINDOWS */ #endif diff --git a/src/python/grpcio/grpc/_cython/loader.c b/src/python/grpcio/grpc/_cython/loader.c index 3b72806ea1..b909ad594e 100644 --- a/src/python/grpcio/grpc/_cython/loader.c +++ b/src/python/grpcio/grpc/_cython/loader.c @@ -37,7 +37,7 @@ extern "C" { #endif /* __cpluslus */ -#if GPR_WIN32 +#if GPR_WINDOWS int pygrpc_load_core(char *path) { HMODULE grpc_c; @@ -60,7 +60,7 @@ int pygrpc_load_core(char *path) { int pygrpc_load_core(char *path) { return 1; } -#endif /* !GPR_WIN32 */ +#endif /* !GPR_WINDOWS */ #ifdef __cplusplus } diff --git a/src/python/grpcio/grpc/_links/service.py b/src/python/grpcio/grpc/_links/service.py index 11310e2240..5fc4994ca0 100644 --- a/src/python/grpcio/grpc/_links/service.py +++ b/src/python/grpcio/grpc/_links/service.py @@ -33,6 +33,7 @@ import abc import enum import logging import threading +import six import time from grpc._adapter import _intermediary_low @@ -177,7 +178,10 @@ class _Kernel(object): call = service_acceptance.call call.accept(self._completion_queue, call) try: - group, method = service_acceptance.method.split(b'/')[1:3] + service_method = service_acceptance.method + if six.PY3: + service_method = service_method.decode('latin1') + group, method = service_method.split('/')[1:3] except ValueError: logging.info('Illegal path "%s"!', service_acceptance.method) return diff --git a/src/python/grpcio/grpc/_plugin_wrapping.py b/src/python/grpcio/grpc/_plugin_wrapping.py new file mode 100644 index 0000000000..4e9cfe710c --- /dev/null +++ b/src/python/grpcio/grpc/_plugin_wrapping.py @@ -0,0 +1,123 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +import collections +import threading + +import grpc +from grpc._cython import cygrpc + + +class AuthMetadataContext( + collections.namedtuple( + 'AuthMetadataContext', ('service_url', 'method_name',)), + grpc.AuthMetadataContext): + pass + + +class AuthMetadataPluginCallback(grpc.AuthMetadataContext): + + def __init__(self, callback): + self._callback = callback + + def __call__(self, metadata, error): + self._callback(metadata, error) + + +class _WrappedCygrpcCallback(object): + + def __init__(self, cygrpc_callback): + self.is_called = False + self.error = None + self.is_called_lock = threading.Lock() + self.cygrpc_callback = cygrpc_callback + + def _invoke_failure(self, error): + # TODO(atash) translate different Exception superclasses into different + # status codes. + self.cygrpc_callback( + cygrpc.Metadata([]), cygrpc.StatusCode.internal, error.message) + + def _invoke_success(self, metadata): + try: + cygrpc_metadata = cygrpc.Metadata( + cygrpc.Metadatum(key, value) + for key, value in metadata) + except Exception as error: + self._invoke_failure(error) + return + self.cygrpc_callback(cygrpc_metadata, cygrpc.StatusCode.ok, '') + + def __call__(self, metadata, error): + with self.is_called_lock: + if self.is_called: + raise RuntimeError('callback should only ever be invoked once') + if self.error: + self._invoke_failure(self.error) + return + self.is_called = True + if error is None: + self._invoke_success(metadata) + else: + self._invoke_failure(error) + + def notify_failure(self, error): + with self.is_called_lock: + if not self.is_called: + self.error = error + + +class _WrappedPlugin(object): + + def __init__(self, plugin): + self.plugin = plugin + + def __call__(self, context, cygrpc_callback): + wrapped_cygrpc_callback = _WrappedCygrpcCallback(cygrpc_callback) + wrapped_context = AuthMetadataContext( + context.service_url, context.method_name) + try: + self.plugin( + wrapped_context, AuthMetadataPluginCallback(wrapped_cygrpc_callback)) + except Exception as error: + wrapped_cygrpc_callback.notify_failure(error) + raise + + +def call_credentials_metadata_plugin(plugin, name): + """ + Args: + plugin: A callable accepting a grpc.AuthMetadataContext + object and a callback (itself accepting a list of metadata key/value + 2-tuples and a None-able exception value). The callback must be eventually + called, but need not be called in plugin's invocation. + plugin's invocation must be non-blocking. + """ + return cygrpc.call_credentials_metadata_plugin( + cygrpc.CredentialsMetadataPlugin(_WrappedPlugin(plugin), name)) diff --git a/src/python/grpcio/grpc/_server.py b/src/python/grpcio/grpc/_server.py new file mode 100644 index 0000000000..bf20f15f72 --- /dev/null +++ b/src/python/grpcio/grpc/_server.py @@ -0,0 +1,755 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Service-side implementation of gRPC Python.""" + +import collections +import enum +import logging +import threading +import time + +import grpc +from grpc import _common +from grpc._cython import cygrpc +from grpc.framework.foundation import callable_util + +_SHUTDOWN_TAG = 'shutdown' +_REQUEST_CALL_TAG = 'request_call' + +_RECEIVE_CLOSE_ON_SERVER_TOKEN = 'receive_close_on_server' +_SEND_INITIAL_METADATA_TOKEN = 'send_initial_metadata' +_RECEIVE_MESSAGE_TOKEN = 'receive_message' +_SEND_MESSAGE_TOKEN = 'send_message' +_SEND_INITIAL_METADATA_AND_SEND_MESSAGE_TOKEN = ( + 'send_initial_metadata * send_message') +_SEND_STATUS_FROM_SERVER_TOKEN = 'send_status_from_server' +_SEND_INITIAL_METADATA_AND_SEND_STATUS_FROM_SERVER_TOKEN = ( + 'send_initial_metadata * send_status_from_server') + +_OPEN = 'open' +_CLOSED = 'closed' +_CANCELLED = 'cancelled' + +_EMPTY_FLAGS = 0 +_EMPTY_METADATA = cygrpc.Metadata(()) + +_UNEXPECTED_EXIT_SERVER_GRACE = 1.0 + + +def _serialized_request(request_event): + return request_event.batch_operations[0].received_message.bytes() + + +def _application_code(code): + cygrpc_code = _common.STATUS_CODE_TO_CYGRPC_STATUS_CODE.get(code) + return cygrpc.StatusCode.unknown if cygrpc_code is None else cygrpc_code + + +def _completion_code(state): + if state.code is None: + return cygrpc.StatusCode.ok + else: + return _application_code(state.code) + + +def _abortion_code(state, code): + if state.code is None: + return code + else: + return _application_code(state.code) + + +def _details(state): + return '' if state.details is None else state.details + + +class _HandlerCallDetails( + collections.namedtuple( + '_HandlerCallDetails', ('method', 'invocation_metadata',)), + grpc.HandlerCallDetails): + pass + + +class _RPCState(object): + + def __init__(self): + self.condition = threading.Condition() + self.due = set() + self.request = None + self.client = _OPEN + self.initial_metadata_allowed = True + self.disable_next_compression = False + self.trailing_metadata = None + self.code = None + self.details = None + self.statused = False + self.rpc_errors = [] + self.callbacks = [] + + +def _raise_rpc_error(state): + rpc_error = grpc.RpcError() + state.rpc_errors.append(rpc_error) + raise rpc_error + + +def _possibly_finish_call(state, token): + state.due.remove(token) + if (state.client is _CANCELLED or state.statused) and not state.due: + callbacks = state.callbacks + state.callbacks = None + return state, callbacks + else: + return None, () + + +def _send_status_from_server(state, token): + def send_status_from_server(unused_send_status_from_server_event): + with state.condition: + return _possibly_finish_call(state, token) + return send_status_from_server + + +def _abort(state, call, code, details): + if state.client is not _CANCELLED: + effective_code = _abortion_code(state, code) + effective_details = details if state.details is None else state.details + if state.initial_metadata_allowed: + operations = ( + cygrpc.operation_send_initial_metadata( + _EMPTY_METADATA, _EMPTY_FLAGS), + cygrpc.operation_send_status_from_server( + _common.metadata(state.trailing_metadata), effective_code, + effective_details, _EMPTY_FLAGS), + ) + token = _SEND_INITIAL_METADATA_AND_SEND_STATUS_FROM_SERVER_TOKEN + else: + operations = ( + cygrpc.operation_send_status_from_server( + _common.metadata(state.trailing_metadata), effective_code, + effective_details, _EMPTY_FLAGS), + ) + token = _SEND_STATUS_FROM_SERVER_TOKEN + call.start_batch( + cygrpc.Operations(operations), + _send_status_from_server(state, token)) + state.statused = True + state.due.add(token) + + +def _receive_close_on_server(state): + def receive_close_on_server(receive_close_on_server_event): + with state.condition: + if receive_close_on_server_event.batch_operations[0].received_cancelled: + state.client = _CANCELLED + elif state.client is _OPEN: + state.client = _CLOSED + state.condition.notify_all() + return _possibly_finish_call(state, _RECEIVE_CLOSE_ON_SERVER_TOKEN) + return receive_close_on_server + + +def _receive_message(state, call, request_deserializer): + def receive_message(receive_message_event): + serialized_request = _serialized_request(receive_message_event) + if serialized_request is None: + with state.condition: + if state.client is _OPEN: + state.client = _CLOSED + state.condition.notify_all() + return _possibly_finish_call(state, _RECEIVE_MESSAGE_TOKEN) + else: + request = _common.deserialize(serialized_request, request_deserializer) + with state.condition: + if request is None: + _abort( + state, call, cygrpc.StatusCode.internal, + 'Exception deserializing request!') + else: + state.request = request + state.condition.notify_all() + return _possibly_finish_call(state, _RECEIVE_MESSAGE_TOKEN) + return receive_message + + +def _send_initial_metadata(state): + def send_initial_metadata(unused_send_initial_metadata_event): + with state.condition: + return _possibly_finish_call(state, _SEND_INITIAL_METADATA_TOKEN) + return send_initial_metadata + + +def _send_message(state, token): + def send_message(unused_send_message_event): + with state.condition: + state.condition.notify_all() + return _possibly_finish_call(state, token) + return send_message + + +class _Context(grpc.ServicerContext): + + def __init__(self, rpc_event, state, request_deserializer): + self._rpc_event = rpc_event + self._state = state + self._request_deserializer = request_deserializer + + def is_active(self): + with self._state.condition: + return self._state.client is not _CANCELLED and not self._state.statused + + def time_remaining(self): + return max(self._rpc_event.request_call_details.deadline - time.time(), 0) + + def cancel(self): + self._rpc_event.operation_call.cancel() + + def add_callback(self, callback): + with self._state.condition: + if self._state.callbacks is None: + return False + else: + self._state.callbacks.append(callback) + return True + + def disable_next_message_compression(self): + with self._state.condition: + self._state.disable_next_compression = True + + def invocation_metadata(self): + return self._rpc_event.request_metadata + + def peer(self): + return self._rpc_event.operation_call.peer() + + def send_initial_metadata(self, initial_metadata): + with self._state.condition: + if self._state.client is _CANCELLED: + _raise_rpc_error(self._state) + else: + if self._state.initial_metadata_allowed: + operation = cygrpc.operation_send_initial_metadata( + _common.metadata(initial_metadata), _EMPTY_FLAGS) + self._rpc_event.operation_call.start_batch( + cygrpc.Operations((operation,)), + _send_initial_metadata(self._state)) + self._state.initial_metadata_allowed = False + self._state.due.add(_SEND_INITIAL_METADATA_TOKEN) + else: + raise ValueError('Initial metadata no longer allowed!') + + def set_trailing_metadata(self, trailing_metadata): + with self._state.condition: + self._state.trailing_metadata = trailing_metadata + + def set_code(self, code): + with self._state.condition: + self._state.code = code + + def set_details(self, details): + with self._state.condition: + self._state.details = details + + +class _RequestIterator(object): + + def __init__(self, state, call, request_deserializer): + self._state = state + self._call = call + self._request_deserializer = request_deserializer + + def _raise_or_start_receive_message(self): + if self._state.client is _CANCELLED: + _raise_rpc_error(self._state) + elif self._state.client is _CLOSED or self._state.statused: + raise StopIteration() + else: + self._call.start_batch( + cygrpc.Operations((cygrpc.operation_receive_message(_EMPTY_FLAGS),)), + _receive_message(self._state, self._call, self._request_deserializer)) + self._state.due.add(_RECEIVE_MESSAGE_TOKEN) + + def _look_for_request(self): + if self._state.client is _CANCELLED: + _raise_rpc_error(self._state) + elif (self._state.request is None and + _RECEIVE_MESSAGE_TOKEN not in self._state.due): + raise StopIteration() + else: + request = self._state.request + self._state.request = None + return request + + def _next(self): + with self._state.condition: + self._raise_or_start_receive_message() + while True: + self._state.condition.wait() + request = self._look_for_request() + if request is not None: + return request + + def __iter__(self): + return self + + def __next__(self): + return self._next() + + def next(self): + return self._next() + + +def _unary_request(rpc_event, state, request_deserializer): + def unary_request(): + with state.condition: + if state.client is _CANCELLED or state.statused: + return None + else: + start_batch_result = rpc_event.operation_call.start_batch( + cygrpc.Operations( + (cygrpc.operation_receive_message(_EMPTY_FLAGS),)), + _receive_message( + state, rpc_event.operation_call, request_deserializer)) + state.due.add(_RECEIVE_MESSAGE_TOKEN) + while True: + state.condition.wait() + if state.request is None: + if state.client is _CLOSED: + details = '"{}" requires exactly one request message.'.format( + rpc_event.request_call_details.method) + _abort( + state, rpc_event.operation_call, + cygrpc.StatusCode.unimplemented, details) + return None + elif state.client is _CANCELLED: + return None + else: + request = state.request + state.request = None + return request + return unary_request + + +def _call_behavior(rpc_event, state, behavior, argument, request_deserializer): + context = _Context(rpc_event, state, request_deserializer) + try: + return behavior(argument, context), True + except Exception as e: # pylint: disable=broad-except + with state.condition: + if e not in state.rpc_errors: + details = 'Exception calling application: {}'.format(e) + logging.exception(details) + _abort( + state, rpc_event.operation_call, cygrpc.StatusCode.unknown, details) + return None, False + + +def _take_response_from_response_iterator(rpc_event, state, response_iterator): + try: + return next(response_iterator), True + except StopIteration: + return None, True + except Exception as e: # pylint: disable=broad-except + with state.condition: + if e not in state.rpc_errors: + details = 'Exception iterating responses: {}'.format(e) + logging.exception(details) + _abort( + state, rpc_event.operation_call, cygrpc.StatusCode.unknown, details) + return None, False + + +def _serialize_response(rpc_event, state, response, response_serializer): + serialized_response = _common.serialize(response, response_serializer) + if serialized_response is None: + with state.condition: + _abort( + state, rpc_event.operation_call, cygrpc.StatusCode.internal, + 'Failed to serialize response!') + return None + else: + return serialized_response + + +def _send_response(rpc_event, state, serialized_response): + with state.condition: + if state.client is _CANCELLED or state.statused: + return False + else: + if state.initial_metadata_allowed: + operations = ( + cygrpc.operation_send_initial_metadata( + _EMPTY_METADATA, _EMPTY_FLAGS), + cygrpc.operation_send_message(serialized_response, _EMPTY_FLAGS), + ) + state.initial_metadata_allowed = False + token = _SEND_INITIAL_METADATA_AND_SEND_MESSAGE_TOKEN + else: + operations = ( + cygrpc.operation_send_message(serialized_response, _EMPTY_FLAGS), + ) + token = _SEND_MESSAGE_TOKEN + rpc_event.operation_call.start_batch( + cygrpc.Operations(operations), _send_message(state, token)) + state.due.add(token) + while True: + state.condition.wait() + if token not in state.due: + return state.client is not _CANCELLED and not state.statused + + +def _status(rpc_event, state, serialized_response): + with state.condition: + if state.client is not _CANCELLED: + trailing_metadata = _common.metadata(state.trailing_metadata) + code = _completion_code(state) + details = _details(state) + operations = [ + cygrpc.operation_send_status_from_server( + trailing_metadata, code, details, _EMPTY_FLAGS), + ] + if state.initial_metadata_allowed: + operations.append( + cygrpc.operation_send_initial_metadata( + _EMPTY_METADATA, _EMPTY_FLAGS)) + if serialized_response is not None: + operations.append(cygrpc.operation_send_message( + serialized_response, _EMPTY_FLAGS)) + rpc_event.operation_call.start_batch( + cygrpc.Operations(operations), + _send_status_from_server(state, _SEND_STATUS_FROM_SERVER_TOKEN)) + state.statused = True + state.due.add(_SEND_STATUS_FROM_SERVER_TOKEN) + + +def _unary_response_in_pool( + rpc_event, state, behavior, argument_thunk, request_deserializer, + response_serializer): + argument = argument_thunk() + if argument is not None: + response, proceed = _call_behavior( + rpc_event, state, behavior, argument, request_deserializer) + if proceed: + serialized_response = _serialize_response( + rpc_event, state, response, response_serializer) + if serialized_response is not None: + _status(rpc_event, state, serialized_response) + return + + +def _stream_response_in_pool( + rpc_event, state, behavior, argument_thunk, request_deserializer, + response_serializer): + argument = argument_thunk() + if argument is not None: + response_iterator, proceed = _call_behavior( + rpc_event, state, behavior, argument, request_deserializer) + if proceed: + while True: + response, proceed = _take_response_from_response_iterator( + rpc_event, state, response_iterator) + if proceed: + if response is None: + _status(rpc_event, state, None) + break + else: + serialized_response = _serialize_response( + rpc_event, state, response, response_serializer) + if serialized_response is not None: + proceed = _send_response(rpc_event, state, serialized_response) + if not proceed: + break + else: + break + else: + break + + +def _handle_unary_unary(rpc_event, state, method_handler, thread_pool): + unary_request = _unary_request( + rpc_event, state, method_handler.request_deserializer) + thread_pool.submit( + _unary_response_in_pool, rpc_event, state, method_handler.unary_unary, + unary_request, method_handler.request_deserializer, + method_handler.response_serializer) + + +def _handle_unary_stream(rpc_event, state, method_handler, thread_pool): + unary_request = _unary_request( + rpc_event, state, method_handler.request_deserializer) + thread_pool.submit( + _stream_response_in_pool, rpc_event, state, method_handler.unary_stream, + unary_request, method_handler.request_deserializer, + method_handler.response_serializer) + + +def _handle_stream_unary(rpc_event, state, method_handler, thread_pool): + request_iterator = _RequestIterator( + state, rpc_event.operation_call, method_handler.request_deserializer) + thread_pool.submit( + _unary_response_in_pool, rpc_event, state, method_handler.stream_unary, + lambda: request_iterator, method_handler.request_deserializer, + method_handler.response_serializer) + + +def _handle_stream_stream(rpc_event, state, method_handler, thread_pool): + request_iterator = _RequestIterator( + state, rpc_event.operation_call, method_handler.request_deserializer) + thread_pool.submit( + _stream_response_in_pool, rpc_event, state, method_handler.stream_stream, + lambda: request_iterator, method_handler.request_deserializer, + method_handler.response_serializer) + + +def _find_method_handler(rpc_event, generic_handlers): + for generic_handler in generic_handlers: + method_handler = generic_handler.service( + _HandlerCallDetails( + rpc_event.request_call_details.method, rpc_event.request_metadata)) + if method_handler is not None: + return method_handler + else: + return None + + +def _handle_unrecognized_method(rpc_event): + operations = ( + cygrpc.operation_send_initial_metadata(_EMPTY_METADATA, _EMPTY_FLAGS), + cygrpc.operation_receive_close_on_server(_EMPTY_FLAGS), + cygrpc.operation_send_status_from_server( + _EMPTY_METADATA, cygrpc.StatusCode.unimplemented, + 'Method not found!', _EMPTY_FLAGS), + ) + rpc_state = _RPCState() + rpc_event.operation_call.start_batch( + operations, lambda ignored_event: (rpc_state, (),)) + return rpc_state + + +def _handle_with_method_handler(rpc_event, method_handler, thread_pool): + state = _RPCState() + with state.condition: + rpc_event.operation_call.start_batch( + cygrpc.Operations( + (cygrpc.operation_receive_close_on_server(_EMPTY_FLAGS),)), + _receive_close_on_server(state)) + state.due.add(_RECEIVE_CLOSE_ON_SERVER_TOKEN) + if method_handler.request_streaming: + if method_handler.response_streaming: + _handle_stream_stream(rpc_event, state, method_handler, thread_pool) + else: + _handle_stream_unary(rpc_event, state, method_handler, thread_pool) + else: + if method_handler.response_streaming: + _handle_unary_stream(rpc_event, state, method_handler, thread_pool) + else: + _handle_unary_unary(rpc_event, state, method_handler, thread_pool) + return state + + +def _handle_call(rpc_event, generic_handlers, thread_pool): + if rpc_event.request_call_details.method is not None: + method_handler = _find_method_handler(rpc_event, generic_handlers) + if method_handler is None: + return _handle_unrecognized_method(rpc_event) + else: + return _handle_with_method_handler(rpc_event, method_handler, thread_pool) + else: + return None + + +@enum.unique +class _ServerStage(enum.Enum): + STOPPED = 'stopped' + STARTED = 'started' + GRACE = 'grace' + + +class _ServerState(object): + + def __init__(self, completion_queue, server, generic_handlers, thread_pool): + self.lock = threading.Lock() + self.completion_queue = completion_queue + self.server = server + self.generic_handlers = list(generic_handlers) + self.thread_pool = thread_pool + self.stage = _ServerStage.STOPPED + self.shutdown_events = None + + # TODO(https://github.com/grpc/grpc/issues/6597): eliminate these fields. + self.rpc_states = set() + self.due = set() + + +def _add_generic_handlers(state, generic_handlers): + with state.lock: + state.generic_handlers.extend(generic_handlers) + + +def _add_insecure_port(state, address): + with state.lock: + return state.server.add_http2_port(address) + + +def _add_secure_port(state, address, server_credentials): + with state.lock: + return state.server.add_http2_port(address, server_credentials._credentials) + + +def _request_call(state): + state.server.request_call( + state.completion_queue, state.completion_queue, _REQUEST_CALL_TAG) + state.due.add(_REQUEST_CALL_TAG) + + +# TODO(https://github.com/grpc/grpc/issues/6597): delete this function. +def _stop_serving(state): + if not state.rpc_states and not state.due: + for shutdown_event in state.shutdown_events: + shutdown_event.set() + state.stage = _ServerStage.STOPPED + return True + else: + return False + + +def _serve(state): + while True: + event = state.completion_queue.poll() + if event.tag is _SHUTDOWN_TAG: + with state.lock: + state.due.remove(_SHUTDOWN_TAG) + if _stop_serving(state): + return + elif event.tag is _REQUEST_CALL_TAG: + with state.lock: + state.due.remove(_REQUEST_CALL_TAG) + rpc_state = _handle_call( + event, state.generic_handlers, state.thread_pool) + if rpc_state is not None: + state.rpc_states.add(rpc_state) + if state.stage is _ServerStage.STARTED: + _request_call(state) + elif _stop_serving(state): + return + else: + rpc_state, callbacks = event.tag(event) + for callback in callbacks: + callable_util.call_logging_exceptions( + callback, 'Exception calling callback!') + if rpc_state is not None: + with state.lock: + state.rpc_states.remove(rpc_state) + if _stop_serving(state): + return + + +def _stop(state, grace): + with state.lock: + if state.stage is _ServerStage.STOPPED: + shutdown_event = threading.Event() + shutdown_event.set() + return shutdown_event + else: + if state.stage is _ServerStage.STARTED: + state.server.shutdown(state.completion_queue, _SHUTDOWN_TAG) + state.stage = _ServerStage.GRACE + state.shutdown_events = [] + state.due.add(_SHUTDOWN_TAG) + shutdown_event = threading.Event() + state.shutdown_events.append(shutdown_event) + if grace is None: + state.server.cancel_all_calls() + # TODO(https://github.com/grpc/grpc/issues/6597): delete this loop. + for rpc_state in state.rpc_states: + with rpc_state.condition: + rpc_state.client = _CANCELLED + rpc_state.condition.notify_all() + else: + def cancel_all_calls_after_grace(): + shutdown_event.wait(timeout=grace) + with state.lock: + state.server.cancel_all_calls() + # TODO(https://github.com/grpc/grpc/issues/6597): delete this loop. + for rpc_state in state.rpc_states: + with rpc_state.condition: + rpc_state.client = _CANCELLED + rpc_state.condition.notify_all() + thread = threading.Thread(target=cancel_all_calls_after_grace) + thread.start() + return shutdown_event + shutdown_event.wait() + return shutdown_event + + +def _start(state): + with state.lock: + if state.stage is not _ServerStage.STOPPED: + raise ValueError('Cannot start already-started server!') + state.server.start() + state.stage = _ServerStage.STARTED + _request_call(state) + def cleanup_server(timeout): + if timeout is None: + _stop(state, _UNEXPECTED_EXIT_SERVER_GRACE).wait() + else: + _stop(state, timeout).wait() + + thread = _common.CleanupThread( + cleanup_server, target=_serve, args=(state,)) + thread.start() + + +class Server(grpc.Server): + + def __init__(self, generic_handlers, thread_pool): + completion_queue = cygrpc.CompletionQueue() + server = cygrpc.Server() + server.register_completion_queue(completion_queue) + self._state = _ServerState( + completion_queue, server, generic_handlers, thread_pool) + + def add_generic_rpc_handlers(self, generic_rpc_handlers): + _add_generic_handlers(self._state, generic_rpc_handlers) + + def add_insecure_port(self, address): + return _add_insecure_port(self._state, address) + + def add_secure_port(self, address, server_credentials): + return _add_secure_port(self._state, address, server_credentials) + + def start(self): + _start(self._state) + + def stop(self, grace): + return _stop(self._state, grace) + + def __del__(self): + _stop(self._state, None) diff --git a/src/python/grpcio/grpc/_utilities.py b/src/python/grpcio/grpc/_utilities.py new file mode 100644 index 0000000000..4850967fbc --- /dev/null +++ b/src/python/grpcio/grpc/_utilities.py @@ -0,0 +1,171 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Internal utilities for gRPC Python.""" + +import collections +import threading +import time + +import six + +import grpc +from grpc import _common +from grpc.framework.foundation import callable_util + +_DONE_CALLBACK_EXCEPTION_LOG_MESSAGE = ( + 'Exception calling connectivity future "done" callback!') + + +class RpcMethodHandler( + collections.namedtuple( + '_RpcMethodHandler', + ('request_streaming', 'response_streaming', 'request_deserializer', + 'response_serializer', 'unary_unary', 'unary_stream', 'stream_unary', + 'stream_stream',)), + grpc.RpcMethodHandler): + pass + + +class DictionaryGenericHandler(grpc.GenericRpcHandler): + + def __init__(self, service, method_handlers): + self._method_handlers = { + _common.fully_qualified_method(service, method): method_handler + for method, method_handler in six.iteritems(method_handlers)} + + def service(self, handler_call_details): + return self._method_handlers.get(handler_call_details.method) + + +class _ChannelReadyFuture(grpc.Future): + + def __init__(self, channel): + self._condition = threading.Condition() + self._channel = channel + + self._matured = False + self._cancelled = False + self._done_callbacks = [] + + def _block(self, timeout): + until = None if timeout is None else time.time() + timeout + with self._condition: + while True: + if self._cancelled: + raise grpc.FutureCancelledError() + elif self._matured: + return + else: + if until is None: + self._condition.wait() + else: + remaining = until - time.time() + if remaining < 0: + raise grpc.FutureTimeoutError() + else: + self._condition.wait(timeout=remaining) + + def _update(self, connectivity): + with self._condition: + if (not self._cancelled and + connectivity is grpc.ChannelConnectivity.READY): + self._matured = True + self._channel.unsubscribe(self._update) + self._condition.notify_all() + done_callbacks = tuple(self._done_callbacks) + self._done_callbacks = None + else: + return + + for done_callback in done_callbacks: + callable_util.call_logging_exceptions( + done_callback, _DONE_CALLBACK_EXCEPTION_LOG_MESSAGE, self) + + def cancel(self): + with self._condition: + if not self._matured: + self._cancelled = True + self._channel.unsubscribe(self._update) + self._condition.notify_all() + done_callbacks = tuple(self._done_callbacks) + self._done_callbacks = None + else: + return False + + for done_callback in done_callbacks: + callable_util.call_logging_exceptions( + done_callback, _DONE_CALLBACK_EXCEPTION_LOG_MESSAGE, self) + + def cancelled(self): + with self._condition: + return self._cancelled + + def running(self): + with self._condition: + return not self._cancelled and not self._matured + + def done(self): + with self._condition: + return self._cancelled or self._matured + + def result(self, timeout=None): + self._block(timeout) + return None + + def exception(self, timeout=None): + self._block(timeout) + return None + + def traceback(self, timeout=None): + self._block(timeout) + return None + + def add_done_callback(self, fn): + with self._condition: + if not self._cancelled and not self._matured: + self._done_callbacks.append(fn) + return + + fn(self) + + def start(self): + with self._condition: + self._channel.subscribe(self._update, try_to_connect=True) + + def __del__(self): + with self._condition: + if not self._cancelled and not self._matured: + self._channel.unsubscribe(self._update) + + +def channel_ready_future(channel): + ready_future = _ChannelReadyFuture(channel) + ready_future.start() + return ready_future diff --git a/src/python/grpcio/grpc/beta/_client_adaptations.py b/src/python/grpcio/grpc/beta/_client_adaptations.py new file mode 100644 index 0000000000..024808c540 --- /dev/null +++ b/src/python/grpcio/grpc/beta/_client_adaptations.py @@ -0,0 +1,563 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Translates gRPC's client-side API into gRPC's client-side Beta API.""" + +import grpc +from grpc import _common +from grpc._cython import cygrpc +from grpc.beta import interfaces +from grpc.framework.common import cardinality +from grpc.framework.foundation import future +from grpc.framework.interfaces.face import face + +_STATUS_CODE_TO_ABORTION_KIND_AND_ABORTION_ERROR_CLASS = { + grpc.StatusCode.CANCELLED: ( + face.Abortion.Kind.CANCELLED, face.CancellationError), + grpc.StatusCode.UNKNOWN: ( + face.Abortion.Kind.REMOTE_FAILURE, face.RemoteError), + grpc.StatusCode.DEADLINE_EXCEEDED: ( + face.Abortion.Kind.EXPIRED, face.ExpirationError), + grpc.StatusCode.UNIMPLEMENTED: ( + face.Abortion.Kind.LOCAL_FAILURE, face.LocalError), +} + + +def _effective_metadata(metadata, metadata_transformer): + non_none_metadata = () if metadata is None else metadata + if metadata_transformer is None: + return non_none_metadata + else: + return metadata_transformer(non_none_metadata) + + +def _credentials(grpc_call_options): + return None if grpc_call_options is None else grpc_call_options.credentials + + +def _abortion(rpc_error_call): + code = rpc_error_call.code() + pair = _STATUS_CODE_TO_ABORTION_KIND_AND_ABORTION_ERROR_CLASS.get(code) + error_kind = face.Abortion.Kind.LOCAL_FAILURE if pair is None else pair[0] + return face.Abortion( + error_kind, rpc_error_call.initial_metadata(), + rpc_error_call.trailing_metadata(), code, rpc_error_code.details()) + + +def _abortion_error(rpc_error_call): + code = rpc_error_call.code() + pair = _STATUS_CODE_TO_ABORTION_KIND_AND_ABORTION_ERROR_CLASS.get(code) + exception_class = face.AbortionError if pair is None else pair[1] + return exception_class( + rpc_error_call.initial_metadata(), rpc_error_call.trailing_metadata(), + code, rpc_error_call.details()) + + +class _InvocationProtocolContext(interfaces.GRPCInvocationContext): + + def disable_next_request_compression(self): + pass # TODO(https://github.com/grpc/grpc/issues/4078): design, implement. + + +class _Rendezvous(future.Future, face.Call): + + def __init__(self, response_future, response_iterator, call): + self._future = response_future + self._iterator = response_iterator + self._call = call + + def cancel(self): + return self._call.cancel() + + def cancelled(self): + return self._future.cancelled() + + def running(self): + return self._future.running() + + def done(self): + return self._future.done() + + def result(self, timeout=None): + try: + return self._future.result(timeout=timeout) + except grpc.RpcError as rpc_error_call: + raise _abortion_error(rpc_error_call) + except grpc.FutureTimeoutError: + raise future.TimeoutError() + except grpc.FutureCancelledError: + raise future.CancelledError() + + def exception(self, timeout=None): + try: + rpc_error_call = self._future.exception(timeout=timeout) + return _abortion_error(rpc_error_call) + except grpc.FutureTimeoutError: + raise future.TimeoutError() + except grpc.FutureCancelledError: + raise future.CancelledError() + + def traceback(self, timeout=None): + try: + return self._future.traceback(timeout=timeout) + except grpc.FutureTimeoutError: + raise future.TimeoutError() + except grpc.FutureCancelledError: + raise future.CancelledError() + + def add_done_callback(self, fn): + self._future.add_done_callback(lambda ignored_callback: fn(self)) + + def __iter__(self): + return self + + def _next(self): + try: + return next(self._iterator) + except grpc.RpcError as rpc_error_call: + raise _abortion_error(rpc_error_call) + + def __next__(self): + return self._next() + + def next(self): + return self._next() + + def is_active(self): + return self._call.is_active() + + def time_remaining(self): + return self._call.time_remaining() + + def add_abortion_callback(self, abortion_callback): + registered = self._call.add_callback( + lambda: abortion_callback(_abortion(self._call))) + return None if registered else _abortion(self._call) + + def protocol_context(self): + return _InvocationProtocolContext() + + def initial_metadata(self): + return self._call.initial_metadata() + + def terminal_metadata(self): + return self._call.terminal_metadata() + + def code(self): + return self._call.code() + + def details(self): + return self._call.details() + + +def _blocking_unary_unary( + channel, group, method, timeout, with_call, protocol_options, metadata, + metadata_transformer, request, request_serializer, response_deserializer): + try: + multi_callable = channel.unary_unary( + _common.fully_qualified_method(group, method), + request_serializer=request_serializer, + response_deserializer=response_deserializer) + effective_metadata = _effective_metadata(metadata, metadata_transformer) + if with_call: + response, call = multi_callable( + request, timeout=timeout, metadata=effective_metadata, + credentials=_credentials(protocol_options), with_call=True) + return response, _Rendezvous(None, None, call) + else: + return multi_callable( + request, timeout=timeout, metadata=effective_metadata, + credentials=_credentials(protocol_options)) + except grpc.RpcError as rpc_error_call: + raise _abortion_error(rpc_error_call) + + +def _future_unary_unary( + channel, group, method, timeout, protocol_options, metadata, + metadata_transformer, request, request_serializer, response_deserializer): + multi_callable = channel.unary_unary( + _common.fully_qualified_method(group, method), + request_serializer=request_serializer, + response_deserializer=response_deserializer) + effective_metadata = _effective_metadata(metadata, metadata_transformer) + response_future = multi_callable.future( + request, timeout=timeout, metadata=effective_metadata, + credentials=_credentials(protocol_options)) + return _Rendezvous(response_future, None, response_future) + + +def _unary_stream( + channel, group, method, timeout, protocol_options, metadata, + metadata_transformer, request, request_serializer, response_deserializer): + multi_callable = channel.unary_stream( + _common.fully_qualified_method(group, method), + request_serializer=request_serializer, + response_deserializer=response_deserializer) + effective_metadata = _effective_metadata(metadata, metadata_transformer) + response_iterator = multi_callable( + request, timeout=timeout, metadata=effective_metadata, + credentials=_credentials(protocol_options)) + return _Rendezvous(None, response_iterator, response_iterator) + + +def _blocking_stream_unary( + channel, group, method, timeout, with_call, protocol_options, metadata, + metadata_transformer, request_iterator, request_serializer, + response_deserializer): + try: + multi_callable = channel.stream_unary( + _common.fully_qualified_method(group, method), + request_serializer=request_serializer, + response_deserializer=response_deserializer) + effective_metadata = _effective_metadata(metadata, metadata_transformer) + if with_call: + response, call = multi_callable( + request_iterator, timeout=timeout, metadata=effective_metadata, + credentials=_credentials(protocol_options), with_call=True) + return response, _Rendezvous(None, None, call) + else: + return multi_callable( + request_iterator, timeout=timeout, metadata=effective_metadata, + credentials=_credentials(protocol_options)) + except grpc.RpcError as rpc_error_call: + raise _abortion_error(rpc_error_call) + + +def _future_stream_unary( + channel, group, method, timeout, protocol_options, metadata, + metadata_transformer, request_iterator, request_serializer, + response_deserializer): + multi_callable = channel.stream_unary( + _common.fully_qualified_method(group, method), + request_serializer=request_serializer, + response_deserializer=response_deserializer) + effective_metadata = _effective_metadata(metadata, metadata_transformer) + response_future = multi_callable.future( + request_iterator, timeout=timeout, metadata=effective_metadata, + credentials=_credentials(protocol_options)) + return _Rendezvous(response_future, None, response_future) + + +def _stream_stream( + channel, group, method, timeout, protocol_options, metadata, + metadata_transformer, request_iterator, request_serializer, + response_deserializer): + multi_callable = channel.stream_stream( + _common.fully_qualified_method(group, method), + request_serializer=request_serializer, + response_deserializer=response_deserializer) + effective_metadata = _effective_metadata(metadata, metadata_transformer) + response_iterator = multi_callable( + request_iterator, timeout=timeout, metadata=effective_metadata, + credentials=_credentials(protocol_options)) + return _Rendezvous(None, response_iterator, response_iterator) + + +class _UnaryUnaryMultiCallable(face.UnaryUnaryMultiCallable): + + def __init__( + self, channel, group, method, metadata_transformer, request_serializer, + response_deserializer): + self._channel = channel + self._group = group + self._method = method + self._metadata_transformer = metadata_transformer + self._request_serializer = request_serializer + self._response_deserializer = response_deserializer + + def __call__( + self, request, timeout, metadata=None, with_call=False, + protocol_options=None): + return _blocking_unary_unary( + self._channel, self._group, self._method, timeout, with_call, + protocol_options, metadata, self._metadata_transformer, request, + self._request_serializer, self._response_deserializer) + + def future(self, request, timeout, metadata=None, protocol_options=None): + return _future_unary_unary( + self._channel, self._group, self._method, timeout, protocol_options, + metadata, self._metadata_transformer, request, self._request_serializer, + self._response_deserializer) + + def event( + self, request, receiver, abortion_callback, timeout, + metadata=None, protocol_options=None): + raise NotImplementedError() + + +class _UnaryStreamMultiCallable(face.UnaryStreamMultiCallable): + + def __init__( + self, channel, group, method, metadata_transformer, request_serializer, + response_deserializer): + self._channel = channel + self._group = group + self._method = method + self._metadata_transformer = metadata_transformer + self._request_serializer = request_serializer + self._response_deserializer = response_deserializer + + def __call__(self, request, timeout, metadata=None, protocol_options=None): + return _unary_stream( + self._channel, self._group, self._method, timeout, protocol_options, + metadata, self._metadata_transformer, request, self._request_serializer, + self._response_deserializer) + + def event( + self, request, receiver, abortion_callback, timeout, + metadata=None, protocol_options=None): + raise NotImplementedError() + + +class _StreamUnaryMultiCallable(face.StreamUnaryMultiCallable): + + def __init__( + self, channel, group, method, metadata_transformer, request_serializer, + response_deserializer): + self._channel = channel + self._group = group + self._method = method + self._metadata_transformer = metadata_transformer + self._request_serializer = request_serializer + self._response_deserializer = response_deserializer + + def __call__( + self, request_iterator, timeout, metadata=None, with_call=False, + protocol_options=None): + return _blocking_stream_unary( + self._channel, self._group, self._method, timeout, with_call, + protocol_options, metadata, self._metadata_transformer, + request_iterator, self._request_serializer, self._response_deserializer) + + def future( + self, request_iterator, timeout, metadata=None, protocol_options=None): + return _future_stream_unary( + self._channel, self._group, self._method, timeout, protocol_options, + metadata, self._metadata_transformer, request_iterator, + self._request_serializer, self._response_deserializer) + + def event( + self, receiver, abortion_callback, timeout, metadata=None, + protocol_options=None): + raise NotImplementedError() + + +class _StreamStreamMultiCallable(face.StreamStreamMultiCallable): + + def __init__( + self, channel, group, method, metadata_transformer, request_serializer, + response_deserializer): + self._channel = channel + self._group = group + self._method = method + self._metadata_transformer = metadata_transformer + self._request_serializer = request_serializer + self._response_deserializer = response_deserializer + + def __call__( + self, request_iterator, timeout, metadata=None, protocol_options=None): + return _stream_stream( + self._channel, self._group, self._method, timeout, protocol_options, + metadata, self._metadata_transformer, request_iterator, + self._request_serializer, self._response_deserializer) + + def event( + self, receiver, abortion_callback, timeout, metadata=None, + protocol_options=None): + raise NotImplementedError() + + +class _GenericStub(face.GenericStub): + + def __init__( + self, channel, metadata_transformer, request_serializers, + response_deserializers): + self._channel = channel + self._metadata_transformer = metadata_transformer + self._request_serializers = request_serializers or {} + self._response_deserializers = response_deserializers or {} + + def blocking_unary_unary( + self, group, method, request, timeout, metadata=None, + with_call=None, protocol_options=None): + request_serializer = self._request_serializers.get((group, method,)) + response_deserializer = self._response_deserializers.get((group, method,)) + return _blocking_unary_unary( + self._channel, group, method, timeout, with_call, protocol_options, + metadata, self._metadata_transformer, request, request_serializer, + response_deserializer) + + def future_unary_unary( + self, group, method, request, timeout, metadata=None, + protocol_options=None): + request_serializer = self._request_serializers.get((group, method,)) + response_deserializer = self._response_deserializers.get((group, method,)) + return _future_unary_unary( + self._channel, group, method, timeout, protocol_options, metadata, + self._metadata_transformer, request, request_serializer, + response_deserializer) + + def inline_unary_stream( + self, group, method, request, timeout, metadata=None, + protocol_options=None): + request_serializer = self._request_serializers.get((group, method,)) + response_deserializer = self._response_deserializers.get((group, method,)) + return _unary_stream( + self._channel, group, method, timeout, protocol_options, metadata, + self._metadata_transformer, request, request_serializer, + response_deserializer) + + def blocking_stream_unary( + self, group, method, request_iterator, timeout, metadata=None, + with_call=None, protocol_options=None): + request_serializer = self._request_serializers.get((group, method,)) + response_deserializer = self._response_deserializers.get((group, method,)) + return _blocking_stream_unary( + self._channel, group, method, timeout, with_call, protocol_options, + metadata, self._metadata_transformer, request_iterator, + request_serializer, response_deserializer) + + def future_stream_unary( + self, group, method, request_iterator, timeout, metadata=None, + protocol_options=None): + request_serializer = self._request_serializers.get((group, method,)) + response_deserializer = self._response_deserializers.get((group, method,)) + return _future_stream_unary( + self._channel, group, method, timeout, protocol_options, metadata, + self._metadata_transformer, request_iterator, request_serializer, + response_deserializer) + + def inline_stream_stream( + self, group, method, request_iterator, timeout, metadata=None, + protocol_options=None): + request_serializer = self._request_serializers.get((group, method,)) + response_deserializer = self._response_deserializers.get((group, method,)) + return _stream_stream( + self._channel, group, method, timeout, protocol_options, metadata, + self._metadata_transformer, request_iterator, request_serializer, + response_deserializer) + + def event_unary_unary( + self, group, method, request, receiver, abortion_callback, timeout, + metadata=None, protocol_options=None): + raise NotImplementedError() + + def event_unary_stream( + self, group, method, request, receiver, abortion_callback, timeout, + metadata=None, protocol_options=None): + raise NotImplementedError() + + def event_stream_unary( + self, group, method, receiver, abortion_callback, timeout, + metadata=None, protocol_options=None): + raise NotImplementedError() + + def event_stream_stream( + self, group, method, receiver, abortion_callback, timeout, + metadata=None, protocol_options=None): + raise NotImplementedError() + + def unary_unary(self, group, method): + request_serializer = self._request_serializers.get((group, method,)) + response_deserializer = self._response_deserializers.get((group, method,)) + return _UnaryUnaryMultiCallable( + self._channel, group, method, self._metadata_transformer, + request_serializer, response_deserializer) + + def unary_stream(self, group, method): + request_serializer = self._request_serializers.get((group, method,)) + response_deserializer = self._response_deserializers.get((group, method,)) + return _UnaryStreamMultiCallable( + self._channel, group, method, self._metadata_transformer, + request_serializer, response_deserializer) + + def stream_unary(self, group, method): + request_serializer = self._request_serializers.get((group, method,)) + response_deserializer = self._response_deserializers.get((group, method,)) + return _StreamUnaryMultiCallable( + self._channel, group, method, self._metadata_transformer, + request_serializer, response_deserializer) + + def stream_stream(self, group, method): + request_serializer = self._request_serializers.get((group, method,)) + response_deserializer = self._response_deserializers.get((group, method,)) + return _StreamStreamMultiCallable( + self._channel, group, method, self._metadata_transformer, + request_serializer, response_deserializer) + + def __enter__(self): + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + return False + + +class _DynamicStub(face.DynamicStub): + + def __init__(self, generic_stub, group, cardinalities): + self._generic_stub = generic_stub + self._group = group + self._cardinalities = cardinalities + + def __getattr__(self, attr): + method_cardinality = self._cardinalities.get(attr) + if method_cardinality is cardinality.Cardinality.UNARY_UNARY: + return self._generic_stub.unary_unary(self._group, attr) + elif method_cardinality is cardinality.Cardinality.UNARY_STREAM: + return self._generic_stub.unary_stream(self._group, attr) + elif method_cardinality is cardinality.Cardinality.STREAM_UNARY: + return self._generic_stub.stream_unary(self._group, attr) + elif method_cardinality is cardinality.Cardinality.STREAM_STREAM: + return self._generic_stub.stream_stream(self._group, attr) + else: + raise AttributeError('_DynamicStub object has no attribute "%s"!' % attr) + + def __enter__(self): + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + return False + + +def generic_stub( + channel, host, metadata_transformer, request_serializers, + response_deserializers): + return _GenericStub( + channel, metadata_transformer, request_serializers, + response_deserializers) + + +def dynamic_stub( + channel, service, cardinalities, host, metadata_transformer, + request_serializers, response_deserializers): + return _DynamicStub( + _GenericStub( + channel, metadata_transformer, request_serializers, + response_deserializers), + service, cardinalities) diff --git a/src/python/grpcio/grpc/beta/_server_adaptations.py b/src/python/grpcio/grpc/beta/_server_adaptations.py new file mode 100644 index 0000000000..79e6ca87eb --- /dev/null +++ b/src/python/grpcio/grpc/beta/_server_adaptations.py @@ -0,0 +1,367 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Translates gRPC's server-side API into gRPC's server-side Beta API.""" + +import collections +import threading + +import grpc +from grpc import _common +from grpc.beta import interfaces +from grpc.framework.common import cardinality +from grpc.framework.common import style +from grpc.framework.foundation import abandonment +from grpc.framework.foundation import logging_pool +from grpc.framework.foundation import stream +from grpc.framework.interfaces.face import face + +_DEFAULT_POOL_SIZE = 8 + + +class _ServerProtocolContext(interfaces.GRPCServicerContext): + + def __init__(self, servicer_context): + self._servicer_context = servicer_context + + def peer(self): + return self._servicer_context.peer() + + def disable_next_response_compression(self): + pass # TODO(https://github.com/grpc/grpc/issues/4078): design, implement. + + +class _FaceServicerContext(face.ServicerContext): + + def __init__(self, servicer_context): + self._servicer_context = servicer_context + + def is_active(self): + return self._servicer_context.is_active() + + def time_remaining(self): + return self._servicer_context.time_remaining() + + def add_abortion_callback(self, abortion_callback): + raise NotImplementedError( + 'add_abortion_callback no longer supported server-side!') + + def cancel(self): + self._servicer_context.cancel() + + def protocol_context(self): + return _ServerProtocolContext(self._servicer_context) + + def invocation_metadata(self): + return self._servicer_context.invocation_metadata() + + def initial_metadata(self, initial_metadata): + self._servicer_context.send_initial_metadata(initial_metadata) + + def terminal_metadata(self, terminal_metadata): + self._servicer_context.set_terminal_metadata(terminal_metadata) + + def code(self, code): + self._servicer_context.set_code(code) + + def details(self, details): + self._servicer_context.set_details(details) + + +def _adapt_unary_request_inline(unary_request_inline): + def adaptation(request, servicer_context): + return unary_request_inline(request, _FaceServicerContext(servicer_context)) + return adaptation + + +def _adapt_stream_request_inline(stream_request_inline): + def adaptation(request_iterator, servicer_context): + return stream_request_inline( + request_iterator, _FaceServicerContext(servicer_context)) + return adaptation + + +class _Callback(stream.Consumer): + + def __init__(self): + self._condition = threading.Condition() + self._values = [] + self._terminated = False + self._cancelled = False + + def consume(self, value): + with self._condition: + self._values.append(value) + self._condition.notify_all() + + def terminate(self): + with self._condition: + self._terminated = True + self._condition.notify_all() + + def consume_and_terminate(self, value): + with self._condition: + self._values.append(value) + self._terminated = True + self._condition.notify_all() + + def cancel(self): + with self._condition: + self._cancelled = True + self._condition.notify_all() + + def draw_one_value(self): + with self._condition: + while True: + if self._cancelled: + raise abandonment.Abandoned() + elif self._values: + return self._values.pop(0) + elif self._terminated: + return None + else: + self._condition.wait() + + def draw_all_values(self): + with self._condition: + while True: + if self._cancelled: + raise abandonment.Abandoned() + elif self._terminated: + all_values = tuple(self._values) + self._values = None + return all_values + else: + self._condition.wait() + + +def _pipe_requests(request_iterator, request_consumer, servicer_context): + for request in request_iterator: + if not servicer_context.is_active(): + return + request_consumer.consume(request) + if not servicer_context.is_active(): + return + request_consumer.terminate() + + +def _adapt_unary_unary_event(unary_unary_event): + def adaptation(request, servicer_context): + callback = _Callback() + if not servicer_context.add_callback(callback.cancel): + raise abandonment.Abandoned() + unary_unary_event( + request, callback.consume_and_terminate, + _FaceServicerContext(servicer_context)) + return callback.draw_all_values()[0] + return adaptation + + +def _adapt_unary_stream_event(unary_stream_event): + def adaptation(request, servicer_context): + callback = _Callback() + if not servicer_context.add_callback(callback.cancel): + raise abandonment.Abandoned() + unary_stream_event( + request, callback, _FaceServicerContext(servicer_context)) + while True: + response = callback.draw_one_value() + if response is None: + return + else: + yield response + return adaptation + + +def _adapt_stream_unary_event(stream_unary_event): + def adaptation(request_iterator, servicer_context): + callback = _Callback() + if not servicer_context.add_callback(callback.cancel): + raise abandonment.Abandoned() + request_consumer = stream_unary_event( + callback.consume_and_terminate, _FaceServicerContext(servicer_context)) + request_pipe_thread = threading.Thread( + target=_pipe_requests, + args=(request_iterator, request_consumer, servicer_context,)) + request_pipe_thread.start() + return callback.draw_all_values()[0] + return adaptation + + +def _adapt_stream_stream_event(stream_stream_event): + def adaptation(request_iterator, servicer_context): + callback = _Callback() + if not servicer_context.add_callback(callback.cancel): + raise abandonment.Abandoned() + request_consumer = stream_stream_event( + callback, _FaceServicerContext(servicer_context)) + request_pipe_thread = threading.Thread( + target=_pipe_requests, + args=(request_iterator, request_consumer, servicer_context,)) + request_pipe_thread.start() + while True: + response = callback.draw_one_value() + if response is None: + return + else: + yield response + return adaptation + + +class _SimpleMethodHandler( + collections.namedtuple( + '_MethodHandler', + ('request_streaming', 'response_streaming', 'request_deserializer', + 'response_serializer', 'unary_unary', 'unary_stream', 'stream_unary', + 'stream_stream',)), + grpc.RpcMethodHandler): + pass + + +def _simple_method_handler( + implementation, request_deserializer, response_serializer): + if implementation.style is style.Service.INLINE: + if implementation.cardinality is cardinality.Cardinality.UNARY_UNARY: + return _SimpleMethodHandler( + False, False, request_deserializer, response_serializer, + _adapt_unary_request_inline(implementation.unary_unary_inline), None, + None, None) + elif implementation.cardinality is cardinality.Cardinality.UNARY_STREAM: + return _SimpleMethodHandler( + False, True, request_deserializer, response_serializer, None, + _adapt_unary_request_inline(implementation.unary_stream_inline), None, + None) + elif implementation.cardinality is cardinality.Cardinality.STREAM_UNARY: + return _SimpleMethodHandler( + True, False, request_deserializer, response_serializer, None, None, + _adapt_stream_request_inline(implementation.stream_unary_inline), + None) + elif implementation.cardinality is cardinality.Cardinality.STREAM_STREAM: + return _SimpleMethodHandler( + True, True, request_deserializer, response_serializer, None, None, + None, + _adapt_stream_request_inline(implementation.stream_stream_inline)) + elif implementation.style is style.Service.EVENT: + if implementation.cardinality is cardinality.Cardinality.UNARY_UNARY: + return _SimpleMethodHandler( + False, False, request_deserializer, response_serializer, + _adapt_unary_unary_event(implementation.unary_unary_event), None, + None, None) + elif implementation.cardinality is cardinality.Cardinality.UNARY_STREAM: + return _SimpleMethodHandler( + False, True, request_deserializer, response_serializer, None, + _adapt_unary_stream_event(implementation.unary_stream_event), None, + None) + elif implementation.cardinality is cardinality.Cardinality.STREAM_UNARY: + return _SimpleMethodHandler( + True, False, request_deserializer, response_serializer, None, None, + _adapt_stream_unary_event(implementation.stream_unary_event), None) + elif implementation.cardinality is cardinality.Cardinality.STREAM_STREAM: + return _SimpleMethodHandler( + True, True, request_deserializer, response_serializer, None, None, + None, _adapt_stream_stream_event(implementation.stream_stream_event)) + + +def _flatten_method_pair_map(method_pair_map): + method_pair_map = method_pair_map or {} + flat_map = {} + for method_pair in method_pair_map: + method = _common.fully_qualified_method(method_pair[0], method_pair[1]) + flat_map[method] = method_pair_map[method_pair] + return flat_map + + +class _GenericRpcHandler(grpc.GenericRpcHandler): + + def __init__( + self, method_implementations, multi_method_implementation, + request_deserializers, response_serializers): + self._method_implementations = _flatten_method_pair_map( + method_implementations) + self._request_deserializers = _flatten_method_pair_map( + request_deserializers) + self._response_serializers = _flatten_method_pair_map( + response_serializers) + self._multi_method_implementation = multi_method_implementation + + def service(self, handler_call_details): + method_implementation = self._method_implementations.get( + handler_call_details.method) + if method_implementation is not None: + return _simple_method_handler( + method_implementation, + self._request_deserializers.get(handler_call_details.method), + self._response_serializers.get(handler_call_details.method)) + elif self._multi_method_implementation is None: + return None + else: + try: + return None #TODO(nathaniel): call the multimethod. + except face.NoSuchMethodError: + return None + + +class _Server(interfaces.Server): + + def __init__(self, server): + self._server = server + + def add_insecure_port(self, address): + return self._server.add_insecure_port(address) + + def add_secure_port(self, address, server_credentials): + return self._server.add_secure_port(address, server_credentials) + + def start(self): + self._server.start() + + def stop(self, grace): + return self._server.stop(grace) + + def __enter__(self): + self._server.start() + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + self._server.stop(None) + return False + + +def server( + service_implementations, multi_method_implementation, request_deserializers, + response_serializers, thread_pool, thread_pool_size): + generic_rpc_handler = _GenericRpcHandler( + service_implementations, multi_method_implementation, + request_deserializers, response_serializers) + if thread_pool is None: + effective_thread_pool = logging_pool.pool( + _DEFAULT_POOL_SIZE if thread_pool_size is None else thread_pool_size) + else: + effective_thread_pool = thread_pool + return _Server(grpc.server((generic_rpc_handler,), effective_thread_pool)) diff --git a/src/python/grpcio/grpc/beta/implementations.py b/src/python/grpcio/grpc/beta/implementations.py index 822f593323..4ae6e7d675 100644 --- a/src/python/grpcio/grpc/beta/implementations.py +++ b/src/python/grpcio/grpc/beta/implementations.py @@ -35,112 +35,36 @@ import enum import threading # pylint: disable=unused-import # cardinality and face are referenced from specification in this module. -from grpc._adapter import _intermediary_low -from grpc._adapter import _low +import grpc +from grpc import _auth from grpc._adapter import _types -from grpc.beta import _connectivity_channel -from grpc.beta import _server -from grpc.beta import _stub +from grpc.beta import _client_adaptations +from grpc.beta import _server_adaptations from grpc.beta import interfaces from grpc.framework.common import cardinality # pylint: disable=unused-import from grpc.framework.interfaces.face import face # pylint: disable=unused-import -_CHANNEL_SUBSCRIPTION_CALLBACK_ERROR_LOG_MESSAGE = ( - 'Exception calling channel subscription callback!') +ChannelCredentials = grpc.ChannelCredentials +ssl_channel_credentials = grpc.ssl_channel_credentials +CallCredentials = grpc.CallCredentials +metadata_call_credentials = grpc.metadata_call_credentials -class ChannelCredentials(object): - """A value encapsulating the data required to create a secure Channel. - This class and its instances have no supported interface - it exists to define - the type of its instances and its instances exist to be passed to other - functions. - """ - - def __init__(self, low_credentials): - self._low_credentials = low_credentials - - -def ssl_channel_credentials(root_certificates=None, private_key=None, - certificate_chain=None): - """Creates a ChannelCredentials for use with an SSL-enabled Channel. - - Args: - root_certificates: The PEM-encoded root certificates or unset to ask for - them to be retrieved from a default location. - private_key: The PEM-encoded private key to use or unset if no private key - should be used. - certificate_chain: The PEM-encoded certificate chain to use or unset if no - certificate chain should be used. - - Returns: - A ChannelCredentials for use with an SSL-enabled Channel. - """ - return ChannelCredentials(_low.channel_credentials_ssl( - root_certificates, private_key, certificate_chain)) - - -class CallCredentials(object): - """A value encapsulating data asserting an identity over an *established* - channel. May be composed with ChannelCredentials to always assert identity for - every call over that channel. - - This class and its instances have no supported interface - it exists to define - the type of its instances and its instances exist to be passed to other - functions. - """ - - def __init__(self, low_credentials): - self._low_credentials = low_credentials - - -def metadata_call_credentials(metadata_plugin, name=None): - """Construct CallCredentials from an interfaces.GRPCAuthMetadataPlugin. - - Args: - metadata_plugin: An interfaces.GRPCAuthMetadataPlugin to use in constructing - the CallCredentials object. - - Returns: - A CallCredentials object for use in a GRPCCallOptions object. - """ - if name is None: - name = metadata_plugin.__name__ - return CallCredentials( - _low.call_credentials_metadata_plugin(metadata_plugin, name)) - -def composite_call_credentials(call_credentials, additional_call_credentials): - """Compose two CallCredentials to make a new one. +def google_call_credentials(credentials): + """Construct CallCredentials from GoogleCredentials. Args: - call_credentials: A CallCredentials object. - additional_call_credentials: Another CallCredentials object to compose on - top of call_credentials. + credentials: A GoogleCredentials object from the oauth2client library. Returns: A CallCredentials object for use in a GRPCCallOptions object. """ - return CallCredentials( - _low.call_credentials_composite( - call_credentials._low_credentials, - additional_call_credentials._low_credentials)) + return metadata_call_credentials(_auth.GoogleCallCredentials(credentials)) -def composite_channel_credentials(channel_credentials, - additional_call_credentials): - """Compose ChannelCredentials on top of client credentials to make a new one. - - Args: - channel_credentials: A ChannelCredentials object. - additional_call_credentials: A CallCredentials object to compose on - top of channel_credentials. - - Returns: - A ChannelCredentials object for use in a GRPCCallOptions object. - """ - return ChannelCredentials( - _low.channel_credentials_composite( - channel_credentials._low_credentials, - additional_call_credentials._low_credentials)) +access_token_call_credentials = grpc.access_token_call_credentials +composite_call_credentials = grpc.composite_call_credentials +composite_channel_credentials = grpc.composite_channel_credentials class Channel(object): @@ -151,11 +75,8 @@ class Channel(object): unsupported. """ - def __init__(self, low_channel, intermediary_low_channel): - self._low_channel = low_channel - self._intermediary_low_channel = intermediary_low_channel - self._connectivity_channel = _connectivity_channel.ConnectivityChannel( - low_channel) + def __init__(self, channel): + self._channel = channel def subscribe(self, callback, try_to_connect=None): """Subscribes to this Channel's connectivity. @@ -170,7 +91,7 @@ class Channel(object): attempt to connect if it is not already connected and ready to conduct RPCs. """ - self._connectivity_channel.subscribe(callback, try_to_connect) + self._channel.subscribe(callback, try_to_connect=try_to_connect) def unsubscribe(self, callback): """Unsubscribes a callback from this Channel's connectivity. @@ -179,7 +100,7 @@ class Channel(object): callback: A callable previously registered with this Channel from having been passed to its "subscribe" method. """ - self._connectivity_channel.unsubscribe(callback) + self._channel.unsubscribe(callback) def insecure_channel(host, port): @@ -193,9 +114,9 @@ def insecure_channel(host, port): Returns: A Channel to the remote host through which RPCs may be conducted. """ - intermediary_low_channel = _intermediary_low.Channel( - '%s:%d' % (host, port) if port else host, None) - return Channel(intermediary_low_channel._internal, intermediary_low_channel) # pylint: disable=protected-access + channel = grpc.insecure_channel( + host if port is None else '%s:%d' % (host, port)) + return Channel(channel) def secure_channel(host, port, channel_credentials): @@ -210,10 +131,9 @@ def secure_channel(host, port, channel_credentials): Returns: A secure Channel to the remote host through which RPCs may be conducted. """ - intermediary_low_channel = _intermediary_low.Channel( - '%s:%d' % (host, port) if port else host, - channel_credentials._low_credentials) - return Channel(intermediary_low_channel._internal, intermediary_low_channel) # pylint: disable=protected-access + channel = grpc.secure_channel( + host if port is None else '%s:%d' % (host, port), channel_credentials) + return Channel(channel) class StubOptions(object): @@ -277,12 +197,11 @@ def generic_stub(channel, options=None): A face.GenericStub on which RPCs can be made. """ effective_options = _EMPTY_STUB_OPTIONS if options is None else options - return _stub.generic_stub( - channel._intermediary_low_channel, effective_options.host, # pylint: disable=protected-access - effective_options.metadata_transformer, + return _client_adaptations.generic_stub( + channel._channel, # pylint: disable=protected-access + effective_options.host, effective_options.metadata_transformer, effective_options.request_serializers, - effective_options.response_deserializers, effective_options.thread_pool, - effective_options.thread_pool_size) + effective_options.response_deserializers) def dynamic_stub(channel, service, cardinalities, options=None): @@ -300,55 +219,16 @@ def dynamic_stub(channel, service, cardinalities, options=None): A face.DynamicStub with which RPCs can be invoked. """ effective_options = StubOptions() if options is None else options - return _stub.dynamic_stub( - channel._intermediary_low_channel, effective_options.host, service, # pylint: disable=protected-access - cardinalities, effective_options.metadata_transformer, + return _client_adaptations.dynamic_stub( + channel._channel, # pylint: disable=protected-access + service, cardinalities, effective_options.host, + effective_options.metadata_transformer, effective_options.request_serializers, - effective_options.response_deserializers, effective_options.thread_pool, - effective_options.thread_pool_size) - + effective_options.response_deserializers) -class ServerCredentials(object): - """A value encapsulating the data required to open a secure port on a Server. - This class and its instances have no supported interface - it exists to define - the type of its instances and its instances exist to be passed to other - functions. - """ - - def __init__(self, low_credentials): - self._low_credentials = low_credentials - - -def ssl_server_credentials( - private_key_certificate_chain_pairs, root_certificates=None, - require_client_auth=False): - """Creates a ServerCredentials for use with an SSL-enabled Server. - - Args: - private_key_certificate_chain_pairs: A nonempty sequence each element of - which is a pair the first element of which is a PEM-encoded private key - and the second element of which is the corresponding PEM-encoded - certificate chain. - root_certificates: PEM-encoded client root certificates to be used for - verifying authenticated clients. If omitted, require_client_auth must also - be omitted or be False. - require_client_auth: A boolean indicating whether or not to require clients - to be authenticated. May only be True if root_certificates is not None. - - Returns: - A ServerCredentials for use with an SSL-enabled Server. - """ - if len(private_key_certificate_chain_pairs) == 0: - raise ValueError( - 'At least one private key-certificate chain pairis required!') - elif require_client_auth and root_certificates is None: - raise ValueError( - 'Illegal to require client auth without providing root certificates!') - else: - return ServerCredentials(_low.server_credentials_ssl( - root_certificates, private_key_certificate_chain_pairs, - require_client_auth)) +ServerCredentials = grpc.ServerCredentials +ssl_server_credentials = grpc.ssl_server_credentials class ServerOptions(object): @@ -421,9 +301,8 @@ def server(service_implementations, options=None): An interfaces.Server with which RPCs can be serviced. """ effective_options = _EMPTY_SERVER_OPTIONS if options is None else options - return _server.server( + return _server_adaptations.server( service_implementations, effective_options.multi_method_implementation, effective_options.request_deserializers, effective_options.response_serializers, effective_options.thread_pool, - effective_options.thread_pool_size, effective_options.default_timeout, - effective_options.maximum_timeout) + effective_options.thread_pool_size) diff --git a/src/python/grpcio/grpc/beta/interfaces.py b/src/python/grpcio/grpc/beta/interfaces.py index 24de9ad1a8..90f6bbbfcc 100644 --- a/src/python/grpcio/grpc/beta/interfaces.py +++ b/src/python/grpcio/grpc/beta/interfaces.py @@ -30,53 +30,16 @@ """Constants and interfaces of the Beta API of gRPC Python.""" import abc -import enum import six -from grpc._adapter import _types +import grpc +ChannelConnectivity = grpc.ChannelConnectivity +# FATAL_FAILURE was a Beta-API name for SHUTDOWN +ChannelConnectivity.FATAL_FAILURE = ChannelConnectivity.SHUTDOWN -@enum.unique -class ChannelConnectivity(enum.Enum): - """Mirrors grpc_connectivity_state in the gRPC Core. - - Attributes: - IDLE: The channel is idle. - CONNECTING: The channel is connecting. - READY: The channel is ready to conduct RPCs. - TRANSIENT_FAILURE: The channel has seen a failure from which it expects to - recover. - FATAL_FAILURE: The channel has seen a failure from which it cannot recover. - """ - IDLE = (_types.ConnectivityState.IDLE, 'idle',) - CONNECTING = (_types.ConnectivityState.CONNECTING, 'connecting',) - READY = (_types.ConnectivityState.READY, 'ready',) - TRANSIENT_FAILURE = ( - _types.ConnectivityState.TRANSIENT_FAILURE, 'transient failure',) - FATAL_FAILURE = (_types.ConnectivityState.FATAL_FAILURE, 'fatal failure',) - - -@enum.unique -class StatusCode(enum.Enum): - """Mirrors grpc_status_code in the C core.""" - OK = 0 - CANCELLED = 1 - UNKNOWN = 2 - INVALID_ARGUMENT = 3 - DEADLINE_EXCEEDED = 4 - NOT_FOUND = 5 - ALREADY_EXISTS = 6 - PERMISSION_DENIED = 7 - RESOURCE_EXHAUSTED = 8 - FAILED_PRECONDITION = 9 - ABORTED = 10 - OUT_OF_RANGE = 11 - UNIMPLEMENTED = 12 - INTERNAL = 13 - UNAVAILABLE = 14 - DATA_LOSS = 15 - UNAUTHENTICATED = 16 +StatusCode = grpc.StatusCode class GRPCCallOptions(object): @@ -106,46 +69,9 @@ def grpc_call_options(disable_compression=False, credentials=None): """ return GRPCCallOptions(disable_compression, None, credentials) - -class GRPCAuthMetadataContext(six.with_metaclass(abc.ABCMeta)): - """Provides information to call credentials metadata plugins. - - Attributes: - service_url: A string URL of the service being called into. - method_name: A string of the fully qualified method name being called. - """ - - -class GRPCAuthMetadataPluginCallback(six.with_metaclass(abc.ABCMeta)): - """Callback object received by a metadata plugin.""" - - def __call__(self, metadata, error): - """Inform the gRPC runtime of the metadata to construct a CallCredentials. - - Args: - metadata: An iterable of 2-sequences (e.g. tuples) of metadata key/value - pairs. - error: An Exception to indicate error or None to indicate success. - """ - raise NotImplementedError() - - -class GRPCAuthMetadataPlugin(six.with_metaclass(abc.ABCMeta)): - """ - """ - - def __call__(self, context, callback): - """Invoke the plugin. - - Must not block. Need only be called by the gRPC runtime. - - Args: - context: A GRPCAuthMetadataContext providing information on what the - plugin is being used for. - callback: A GRPCAuthMetadataPluginCallback to be invoked either - synchronously or asynchronously. - """ - raise NotImplementedError() +GRPCAuthMetadataContext = grpc.AuthMetadataContext +GRPCAuthMetadataPluginCallback = grpc.AuthMetadataPluginCallback +GRPCAuthMetadataPlugin = grpc.AuthMetadataPlugin class GRPCServicerContext(six.with_metaclass(abc.ABCMeta)): diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py index 33636db29e..839c555f05 100644 --- a/src/python/grpcio/grpc_core_dependencies.py +++ b/src/python/grpcio/grpc_core_dependencies.py @@ -42,38 +42,38 @@ CORE_SOURCE_FILES = [ 'src/core/lib/support/cpu_windows.c', 'src/core/lib/support/env_linux.c', 'src/core/lib/support/env_posix.c', - 'src/core/lib/support/env_win32.c', + 'src/core/lib/support/env_windows.c', 'src/core/lib/support/histogram.c', 'src/core/lib/support/host_port.c', 'src/core/lib/support/log.c', 'src/core/lib/support/log_android.c', 'src/core/lib/support/log_linux.c', 'src/core/lib/support/log_posix.c', - 'src/core/lib/support/log_win32.c', + 'src/core/lib/support/log_windows.c', 'src/core/lib/support/murmur_hash.c', 'src/core/lib/support/slice.c', 'src/core/lib/support/slice_buffer.c', 'src/core/lib/support/stack_lockfree.c', 'src/core/lib/support/string.c', 'src/core/lib/support/string_posix.c', - 'src/core/lib/support/string_util_win32.c', - 'src/core/lib/support/string_win32.c', + 'src/core/lib/support/string_util_windows.c', + 'src/core/lib/support/string_windows.c', 'src/core/lib/support/subprocess_posix.c', 'src/core/lib/support/subprocess_windows.c', 'src/core/lib/support/sync.c', 'src/core/lib/support/sync_posix.c', - 'src/core/lib/support/sync_win32.c', + 'src/core/lib/support/sync_windows.c', 'src/core/lib/support/thd.c', 'src/core/lib/support/thd_posix.c', - 'src/core/lib/support/thd_win32.c', + 'src/core/lib/support/thd_windows.c', 'src/core/lib/support/time.c', 'src/core/lib/support/time_posix.c', 'src/core/lib/support/time_precise.c', - 'src/core/lib/support/time_win32.c', + 'src/core/lib/support/time_windows.c', 'src/core/lib/support/tls_pthread.c', 'src/core/lib/support/tmpfile_msys.c', 'src/core/lib/support/tmpfile_posix.c', - 'src/core/lib/support/tmpfile_win32.c', + 'src/core/lib/support/tmpfile_windows.c', 'src/core/lib/support/wrap_memcpy.c', 'src/core/lib/surface/init.c', 'src/core/lib/channel/channel_args.c', @@ -83,7 +83,7 @@ CORE_SOURCE_FILES = [ 'src/core/lib/channel/connected_channel.c', 'src/core/lib/channel/http_client_filter.c', 'src/core/lib/channel/http_server_filter.c', - 'src/core/lib/compression/compression_algorithm.c', + 'src/core/lib/compression/compression.c', 'src/core/lib/compression/message_compress.c', 'src/core/lib/debug/trace.c', 'src/core/lib/http/format_request.c', @@ -94,6 +94,7 @@ CORE_SOURCE_FILES = [ 'src/core/lib/iomgr/endpoint_pair_posix.c', 'src/core/lib/iomgr/endpoint_pair_windows.c', 'src/core/lib/iomgr/error.c', + 'src/core/lib/iomgr/ev_poll_and_epoll_posix.c', 'src/core/lib/iomgr/ev_poll_posix.c', 'src/core/lib/iomgr/ev_posix.c', 'src/core/lib/iomgr/exec_ctx.c', @@ -103,6 +104,7 @@ CORE_SOURCE_FILES = [ 'src/core/lib/iomgr/iomgr_posix.c', 'src/core/lib/iomgr/iomgr_windows.c', 'src/core/lib/iomgr/load_file.c', + 'src/core/lib/iomgr/polling_entity.c', 'src/core/lib/iomgr/pollset_set_windows.c', 'src/core/lib/iomgr/pollset_windows.c', 'src/core/lib/iomgr/resolve_address_posix.c', @@ -160,6 +162,7 @@ CORE_SOURCE_FILES = [ 'src/core/lib/transport/transport.c', 'src/core/lib/transport/transport_op_string.c', 'src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.c', + 'src/core/ext/transport/chttp2/transport/bin_decoder.c', 'src/core/ext/transport/chttp2/transport/bin_encoder.c', 'src/core/ext/transport/chttp2/transport/chttp2_plugin.c', 'src/core/ext/transport/chttp2/transport/chttp2_transport.c', @@ -189,7 +192,7 @@ CORE_SOURCE_FILES = [ 'src/core/lib/security/credentials/credentials_metadata.c', 'src/core/lib/security/credentials/fake/fake_credentials.c', 'src/core/lib/security/credentials/google_default/credentials_posix.c', - 'src/core/lib/security/credentials/google_default/credentials_win32.c', + 'src/core/lib/security/credentials/google_default/credentials_windows.c', 'src/core/lib/security/credentials/google_default/google_default_credentials.c', 'src/core/lib/security/credentials/iam/iam_credentials.c', 'src/core/lib/security/credentials/jwt/json_token.c', @@ -231,10 +234,9 @@ CORE_SOURCE_FILES = [ 'src/core/ext/client_config/subchannel_index.c', 'src/core/ext/client_config/uri_parser.c', 'src/core/ext/transport/chttp2/server/insecure/server_chttp2.c', + 'src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c', 'src/core/ext/transport/chttp2/client/insecure/channel_create.c', - 'src/core/ext/transport/cronet/client/secure/cronet_channel_create.c', - 'src/core/ext/transport/cronet/transport/cronet_api_dummy.c', - 'src/core/ext/transport/cronet/transport/cronet_transport.c', + 'src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c', 'src/core/ext/lb_policy/grpclb/load_balancer_api.c', 'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c', 'third_party/nanopb/pb_common.c', @@ -244,7 +246,10 @@ CORE_SOURCE_FILES = [ 'src/core/ext/lb_policy/round_robin/round_robin.c', 'src/core/ext/resolver/dns/native/dns_resolver.c', 'src/core/ext/resolver/sockaddr/sockaddr_resolver.c', + 'src/core/ext/load_reporting/load_reporting.c', + 'src/core/ext/load_reporting/load_reporting_filter.c', 'src/core/ext/census/context.c', + 'src/core/ext/census/gen/census.pb.c', 'src/core/ext/census/grpc_context.c', 'src/core/ext/census/grpc_filter.c', 'src/core/ext/census/grpc_plugin.c', diff --git a/src/python/grpcio/tests/interop/client.py b/src/python/grpcio/tests/interop/client.py index db29eb4aa7..8aa1ce30c1 100644 --- a/src/python/grpcio/tests/interop/client.py +++ b/src/python/grpcio/tests/interop/client.py @@ -65,39 +65,37 @@ def _args(): help='email address of the default service account', type=str) return parser.parse_args() -def _oauth_access_token(args): - credentials = oauth2client_client.GoogleCredentials.get_application_default() - scoped_credentials = credentials.create_scoped([args.oauth_scope]) - return scoped_credentials.get_access_token().access_token def _stub(args): - if args.oauth_scope: - if args.test_case == 'oauth2_auth_token': - # TODO(jtattermusch): This testcase sets the auth metadata key-value - # manually, which also means that the user would need to do the same - # thing every time he/she would like to use and out of band oauth token. - # The transformer function that produces the metadata key-value from - # the access token should be provided by gRPC auth library. - access_token = _oauth_access_token(args) - metadata_transformer = lambda x: [ - ('authorization', 'Bearer %s' % access_token)] - else: - metadata_transformer = lambda x: [ - ('authorization', 'Bearer %s' % _oauth_access_token(args))] + if args.test_case == 'oauth2_auth_token': + creds = oauth2client_client.GoogleCredentials.get_application_default() + scoped_creds = creds.create_scoped([args.oauth_scope]) + access_token = scoped_creds.get_access_token().access_token + call_creds = implementations.access_token_call_credentials(access_token) + elif args.test_case == 'compute_engine_creds': + creds = oauth2client_client.GoogleCredentials.get_application_default() + scoped_creds = creds.create_scoped([args.oauth_scope]) + call_creds = implementations.google_call_credentials(scoped_creds) + elif args.test_case == 'jwt_token_creds': + creds = oauth2client_client.GoogleCredentials.get_application_default() + call_creds = implementations.google_call_credentials(creds) else: - metadata_transformer = lambda x: [] + call_creds = None if args.use_tls: if args.use_test_ca: root_certificates = resources.test_root_certificates() else: root_certificates = None # will load default roots. + channel_creds = implementations.ssl_channel_credentials(root_certificates) + if call_creds is not None: + channel_creds = implementations.composite_channel_credentials( + channel_creds, call_creds) + channel = test_utilities.not_really_secure_channel( - args.server_host, args.server_port, - implementations.ssl_channel_credentials(root_certificates), + args.server_host, args.server_port, channel_creds, args.server_host_override) - stub = test_pb2.beta_create_TestService_stub( - channel, metadata_transformer=metadata_transformer) + stub = test_pb2.beta_create_TestService_stub(channel) else: channel = implementations.insecure_channel( args.server_host, args.server_port) diff --git a/src/python/grpcio/tests/interop/methods.py b/src/python/grpcio/tests/interop/methods.py index 67862ed7d3..7eac511525 100644 --- a/src/python/grpcio/tests/interop/methods.py +++ b/src/python/grpcio/tests/interop/methods.py @@ -39,6 +39,8 @@ import time from oauth2client import client as oauth2client_client +from grpc.beta import implementations +from grpc.beta import interfaces from grpc.framework.common import cardinality from grpc.framework.interfaces.face import face @@ -88,13 +90,15 @@ class TestService(test_pb2.BetaTestServiceServicer): return self.FullDuplexCall(request_iterator, context) -def _large_unary_common_behavior(stub, fill_username, fill_oauth_scope): +def _large_unary_common_behavior(stub, fill_username, fill_oauth_scope, + protocol_options=None): with stub: request = messages_pb2.SimpleRequest( response_type=messages_pb2.COMPRESSABLE, response_size=314159, payload=messages_pb2.Payload(body=b'\x00' * 271828), fill_username=fill_username, fill_oauth_scope=fill_oauth_scope) - response_future = stub.UnaryCall.future(request, _TIMEOUT) + response_future = stub.UnaryCall.future(request, _TIMEOUT, + protocol_options=protocol_options) response = response_future.result() if response.payload.type is not messages_pb2.COMPRESSABLE: raise ValueError( @@ -303,7 +307,34 @@ def _oauth2_auth_token(stub, args): if args.oauth_scope.find(response.oauth_scope) == -1: raise ValueError( 'expected to find oauth scope "%s" in received "%s"' % - (response.oauth_scope, args.oauth_scope)) + (response.oauth_scope, args.oauth_scope)) + + +def _jwt_token_creds(stub, args): + json_key_filename = os.environ[ + oauth2client_client.GOOGLE_APPLICATION_CREDENTIALS] + wanted_email = json.load(open(json_key_filename, 'rb'))['client_email'] + response = _large_unary_common_behavior(stub, True, False) + if wanted_email != response.username: + raise ValueError( + 'expected username %s, got %s' % (wanted_email, response.username)) + + +def _per_rpc_creds(stub, args): + json_key_filename = os.environ[ + oauth2client_client.GOOGLE_APPLICATION_CREDENTIALS] + wanted_email = json.load(open(json_key_filename, 'rb'))['client_email'] + credentials = oauth2client_client.GoogleCredentials.get_application_default() + scoped_credentials = credentials.create_scoped([args.oauth_scope]) + call_creds = implementations.google_call_credentials(scoped_credentials) + options = interfaces.grpc_call_options(disable_compression=False, + credentials=call_creds) + response = _large_unary_common_behavior(stub, True, False, + protocol_options=options) + if wanted_email != response.username: + raise ValueError( + 'expected username %s, got %s' % (wanted_email, response.username)) + @enum.unique class TestCase(enum.Enum): @@ -317,6 +348,8 @@ class TestCase(enum.Enum): EMPTY_STREAM = 'empty_stream' COMPUTE_ENGINE_CREDS = 'compute_engine_creds' OAUTH2_AUTH_TOKEN = 'oauth2_auth_token' + JWT_TOKEN_CREDS = 'jwt_token_creds' + PER_RPC_CREDS = 'per_rpc_creds' TIMEOUT_ON_SLEEPING_SERVER = 'timeout_on_sleeping_server' def test_interoperability(self, stub, args): @@ -342,5 +375,9 @@ class TestCase(enum.Enum): _compute_engine_creds(stub, args) elif self is TestCase.OAUTH2_AUTH_TOKEN: _oauth2_auth_token(stub, args) + elif self is TestCase.JWT_TOKEN_CREDS: + _jwt_token_creds(stub, args) + elif self is TestCase.PER_RPC_CREDS: + _per_rpc_creds(stub, args) else: raise NotImplementedError('Test case "%s" not implemented!' % self.name) diff --git a/src/python/grpcio/tests/protoc_plugin/_python_plugin_test.py b/src/python/grpcio/tests/protoc_plugin/_python_plugin_test.py new file mode 100644 index 0000000000..1c9cbb0d0c --- /dev/null +++ b/src/python/grpcio/tests/protoc_plugin/_python_plugin_test.py @@ -0,0 +1,583 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +import collections +from concurrent import futures +import contextlib +import distutils.spawn +import errno +import os +import shutil +import subprocess +import sys +import tempfile +import threading +import unittest + +from six import moves + +import grpc +from tests.unit.framework.common import test_constants + +# Identifiers of entities we expect to find in the generated module. +STUB_IDENTIFIER = 'TestServiceStub' +SERVICER_IDENTIFIER = 'TestServiceServicer' +ADD_SERVICER_TO_SERVER_IDENTIFIER = 'add_TestServiceServicer_to_server' + + +class _ServicerMethods(object): + + def __init__(self, response_pb2, payload_pb2): + self._condition = threading.Condition() + self._paused = False + self._fail = False + self._response_pb2 = response_pb2 + self._payload_pb2 = payload_pb2 + + @contextlib.contextmanager + def pause(self): # pylint: disable=invalid-name + with self._condition: + self._paused = True + yield + with self._condition: + self._paused = False + self._condition.notify_all() + + @contextlib.contextmanager + def fail(self): # pylint: disable=invalid-name + with self._condition: + self._fail = True + yield + with self._condition: + self._fail = False + + def _control(self): # pylint: disable=invalid-name + with self._condition: + if self._fail: + raise ValueError() + while self._paused: + self._condition.wait() + + def UnaryCall(self, request, unused_rpc_context): + response = self._response_pb2.SimpleResponse() + response.payload.payload_type = self._payload_pb2.COMPRESSABLE + response.payload.payload_compressable = 'a' * request.response_size + self._control() + return response + + def StreamingOutputCall(self, request, unused_rpc_context): + for parameter in request.response_parameters: + response = self._response_pb2.StreamingOutputCallResponse() + response.payload.payload_type = self._payload_pb2.COMPRESSABLE + response.payload.payload_compressable = 'a' * parameter.size + self._control() + yield response + + def StreamingInputCall(self, request_iter, unused_rpc_context): + response = self._response_pb2.StreamingInputCallResponse() + aggregated_payload_size = 0 + for request in request_iter: + aggregated_payload_size += len(request.payload.payload_compressable) + response.aggregated_payload_size = aggregated_payload_size + self._control() + return response + + def FullDuplexCall(self, request_iter, unused_rpc_context): + for request in request_iter: + for parameter in request.response_parameters: + response = self._response_pb2.StreamingOutputCallResponse() + response.payload.payload_type = self._payload_pb2.COMPRESSABLE + response.payload.payload_compressable = 'a' * parameter.size + self._control() + yield response + + def HalfDuplexCall(self, request_iter, unused_rpc_context): + responses = [] + for request in request_iter: + for parameter in request.response_parameters: + response = self._response_pb2.StreamingOutputCallResponse() + response.payload.payload_type = self._payload_pb2.COMPRESSABLE + response.payload.payload_compressable = 'a' * parameter.size + self._control() + responses.append(response) + for response in responses: + yield response + + +class _Service( + collections.namedtuple( + '_Service', ('servicer_methods', 'server', 'stub',))): + """A live and running service. + + Attributes: + servicer_methods: The _ServicerMethods servicing RPCs. + server: The grpc.Server servicing RPCs. + stub: A stub on which to invoke RPCs. + """ + + +def _CreateService(service_pb2, response_pb2, payload_pb2): + """Provides a servicer backend and a stub. + + Args: + service_pb2: The service_pb2 module generated by this test. + response_pb2: The response_pb2 module generated by this test. + payload_pb2: The payload_pb2 module generated by this test. + + Returns: + A _Service with which to test RPCs. + """ + servicer_methods = _ServicerMethods(response_pb2, payload_pb2) + + class Servicer(getattr(service_pb2, SERVICER_IDENTIFIER)): + + def UnaryCall(self, request, context): + return servicer_methods.UnaryCall(request, context) + + def StreamingOutputCall(self, request, context): + return servicer_methods.StreamingOutputCall(request, context) + + def StreamingInputCall(self, request_iter, context): + return servicer_methods.StreamingInputCall(request_iter, context) + + def FullDuplexCall(self, request_iter, context): + return servicer_methods.FullDuplexCall(request_iter, context) + + def HalfDuplexCall(self, request_iter, context): + return servicer_methods.HalfDuplexCall(request_iter, context) + + server = grpc.server( + (), futures.ThreadPoolExecutor(max_workers=test_constants.POOL_SIZE)) + getattr(service_pb2, ADD_SERVICER_TO_SERVER_IDENTIFIER)(Servicer(), server) + port = server.add_insecure_port('[::]:0') + server.start() + channel = grpc.insecure_channel('localhost:{}'.format(port)) + stub = getattr(service_pb2, STUB_IDENTIFIER)(channel) + return _Service(servicer_methods, server, stub) + + +def _CreateIncompleteService(service_pb2): + """Provides a servicer backend that fails to implement methods and its stub. + + Args: + service_pb2: The service_pb2 module generated by this test. + + Returns: + A _Service with which to test RPCs. The returned _Service's + servicer_methods implements none of the methods required of it. + """ + + class Servicer(getattr(service_pb2, SERVICER_IDENTIFIER)): + pass + + server = grpc.server( + (), futures.ThreadPoolExecutor(max_workers=test_constants.POOL_SIZE)) + getattr(service_pb2, ADD_SERVICER_TO_SERVER_IDENTIFIER)(Servicer(), server) + port = server.add_insecure_port('[::]:0') + server.start() + channel = grpc.insecure_channel('localhost:{}'.format(port)) + stub = getattr(service_pb2, STUB_IDENTIFIER)(channel) + return _Service(None, server, stub) + + +def _streaming_input_request_iterator(request_pb2, payload_pb2): + for _ in range(3): + request = request_pb2.StreamingInputCallRequest() + request.payload.payload_type = payload_pb2.COMPRESSABLE + request.payload.payload_compressable = 'a' + yield request + + +def _streaming_output_request(request_pb2): + request = request_pb2.StreamingOutputCallRequest() + sizes = [1, 2, 3] + request.response_parameters.add(size=sizes[0], interval_us=0) + request.response_parameters.add(size=sizes[1], interval_us=0) + request.response_parameters.add(size=sizes[2], interval_us=0) + return request + + +def _full_duplex_request_iterator(request_pb2): + request = request_pb2.StreamingOutputCallRequest() + request.response_parameters.add(size=1, interval_us=0) + yield request + request = request_pb2.StreamingOutputCallRequest() + request.response_parameters.add(size=2, interval_us=0) + request.response_parameters.add(size=3, interval_us=0) + yield request + + +class PythonPluginTest(unittest.TestCase): + """Test case for the gRPC Python protoc-plugin. + + While reading these tests, remember that the futures API + (`stub.method.future()`) only gives futures for the *response-unary* + methods and does not exist for response-streaming methods. + """ + + def setUp(self): + # Assume that the appropriate protoc and grpc_python_plugins are on the + # path. + protoc_command = 'protoc' + protoc_plugin_filename = distutils.spawn.find_executable( + 'grpc_python_plugin') + if not os.path.isfile(protoc_command): + # Assume that if we haven't built protoc that it's on the system. + protoc_command = 'protoc' + + # Ensure that the output directory exists. + self.outdir = tempfile.mkdtemp() + + # Find all proto files + paths = [] + root_dir = os.path.dirname(os.path.realpath(__file__)) + proto_dir = os.path.join(root_dir, 'protos') + for walk_root, _, filenames in os.walk(proto_dir): + for filename in filenames: + if filename.endswith('.proto'): + path = os.path.join(walk_root, filename) + paths.append(path) + + # Invoke protoc with the plugin. + cmd = [ + protoc_command, + '--plugin=protoc-gen-python-grpc=%s' % protoc_plugin_filename, + '-I %s' % root_dir, + '--python_out=%s' % self.outdir, + '--python-grpc_out=%s' % self.outdir + ] + paths + subprocess.check_call(' '.join(cmd), shell=True, env=os.environ, + cwd=os.path.dirname(os.path.realpath(__file__))) + + # Generated proto directories dont include __init__.py, but + # these are needed for python package resolution + for walk_root, _, _ in os.walk(os.path.join(self.outdir, 'protos')): + path = os.path.join(walk_root, '__init__.py') + open(path, 'a').close() + + sys.path.insert(0, self.outdir) + + import protos.payload.test_payload_pb2 as payload_pb2 + import protos.requests.r.test_requests_pb2 as request_pb2 + import protos.responses.test_responses_pb2 as response_pb2 + import protos.service.test_service_pb2 as service_pb2 + self._payload_pb2 = payload_pb2 + self._request_pb2 = request_pb2 + self._response_pb2 = response_pb2 + self._service_pb2 = service_pb2 + + def tearDown(self): + try: + shutil.rmtree(self.outdir) + except OSError as exc: + if exc.errno != errno.ENOENT: + raise + sys.path.remove(self.outdir) + + def testImportAttributes(self): + # check that we can access the generated module and its members. + self.assertIsNotNone( + getattr(self._service_pb2, STUB_IDENTIFIER, None)) + self.assertIsNotNone( + getattr(self._service_pb2, SERVICER_IDENTIFIER, None)) + self.assertIsNotNone( + getattr(self._service_pb2, ADD_SERVICER_TO_SERVER_IDENTIFIER, None)) + + def testUpDown(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + self.assertIsNotNone(service.servicer_methods) + self.assertIsNotNone(service.server) + self.assertIsNotNone(service.stub) + + def testIncompleteServicer(self): + service = _CreateIncompleteService(self._service_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + with self.assertRaises(grpc.RpcError) as exception_context: + service.stub.UnaryCall(request) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.UNIMPLEMENTED) + + def testUnaryCall(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + response = service.stub.UnaryCall(request) + expected_response = service.servicer_methods.UnaryCall( + request, 'not a real context!') + self.assertEqual(expected_response, response) + + def testUnaryCallFuture(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + # Check that the call does not block waiting for the server to respond. + with service.servicer_methods.pause(): + response_future = service.stub.UnaryCall.future(request) + response = response_future.result() + expected_response = service.servicer_methods.UnaryCall( + request, 'not a real RpcContext!') + self.assertEqual(expected_response, response) + + def testUnaryCallFutureExpired(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + with service.servicer_methods.pause(): + response_future = service.stub.UnaryCall.future( + request, timeout=test_constants.SHORT_TIMEOUT) + with self.assertRaises(grpc.RpcError) as exception_context: + response_future.result() + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + self.assertIs(response_future.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + + def testUnaryCallFutureCancelled(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + with service.servicer_methods.pause(): + response_future = service.stub.UnaryCall.future(request) + response_future.cancel() + self.assertTrue(response_future.cancelled()) + self.assertIs(response_future.code(), grpc.StatusCode.CANCELLED) + + def testUnaryCallFutureFailed(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + with service.servicer_methods.fail(): + response_future = service.stub.UnaryCall.future(request) + self.assertIsNotNone(response_future.exception()) + self.assertIs(response_future.code(), grpc.StatusCode.UNKNOWN) + + def testStreamingOutputCall(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = _streaming_output_request(self._request_pb2) + responses = service.stub.StreamingOutputCall(request) + expected_responses = service.servicer_methods.StreamingOutputCall( + request, 'not a real RpcContext!') + for expected_response, response in moves.zip_longest( + expected_responses, responses): + self.assertEqual(expected_response, response) + + def testStreamingOutputCallExpired(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = _streaming_output_request(self._request_pb2) + with service.servicer_methods.pause(): + responses = service.stub.StreamingOutputCall( + request, timeout=test_constants.SHORT_TIMEOUT) + with self.assertRaises(grpc.RpcError) as exception_context: + list(responses) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + + def testStreamingOutputCallCancelled(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = _streaming_output_request(self._request_pb2) + responses = service.stub.StreamingOutputCall(request) + next(responses) + responses.cancel() + with self.assertRaises(grpc.RpcError) as exception_context: + next(responses) + self.assertIs(responses.code(), grpc.StatusCode.CANCELLED) + + def testStreamingOutputCallFailed(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = _streaming_output_request(self._request_pb2) + with service.servicer_methods.fail(): + responses = service.stub.StreamingOutputCall(request) + self.assertIsNotNone(responses) + with self.assertRaises(grpc.RpcError) as exception_context: + next(responses) + self.assertIs(exception_context.exception.code(), grpc.StatusCode.UNKNOWN) + + def testStreamingInputCall(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + response = service.stub.StreamingInputCall( + _streaming_input_request_iterator( + self._request_pb2, self._payload_pb2)) + expected_response = service.servicer_methods.StreamingInputCall( + _streaming_input_request_iterator(self._request_pb2, self._payload_pb2), + 'not a real RpcContext!') + self.assertEqual(expected_response, response) + + def testStreamingInputCallFuture(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.pause(): + response_future = service.stub.StreamingInputCall.future( + _streaming_input_request_iterator( + self._request_pb2, self._payload_pb2)) + response = response_future.result() + expected_response = service.servicer_methods.StreamingInputCall( + _streaming_input_request_iterator(self._request_pb2, self._payload_pb2), + 'not a real RpcContext!') + self.assertEqual(expected_response, response) + + def testStreamingInputCallFutureExpired(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.pause(): + response_future = service.stub.StreamingInputCall.future( + _streaming_input_request_iterator( + self._request_pb2, self._payload_pb2), + timeout=test_constants.SHORT_TIMEOUT) + with self.assertRaises(grpc.RpcError) as exception_context: + response_future.result() + self.assertIsInstance(response_future.exception(), grpc.RpcError) + self.assertIs( + response_future.exception().code(), grpc.StatusCode.DEADLINE_EXCEEDED) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + + def testStreamingInputCallFutureCancelled(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.pause(): + response_future = service.stub.StreamingInputCall.future( + _streaming_input_request_iterator( + self._request_pb2, self._payload_pb2)) + response_future.cancel() + self.assertTrue(response_future.cancelled()) + with self.assertRaises(grpc.FutureCancelledError): + response_future.result() + + def testStreamingInputCallFutureFailed(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.fail(): + response_future = service.stub.StreamingInputCall.future( + _streaming_input_request_iterator( + self._request_pb2, self._payload_pb2)) + self.assertIsNotNone(response_future.exception()) + self.assertIs(response_future.code(), grpc.StatusCode.UNKNOWN) + + def testFullDuplexCall(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + responses = service.stub.FullDuplexCall( + _full_duplex_request_iterator(self._request_pb2)) + expected_responses = service.servicer_methods.FullDuplexCall( + _full_duplex_request_iterator(self._request_pb2), + 'not a real RpcContext!') + for expected_response, response in moves.zip_longest( + expected_responses, responses): + self.assertEqual(expected_response, response) + + def testFullDuplexCallExpired(self): + request_iterator = _full_duplex_request_iterator(self._request_pb2) + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.pause(): + responses = service.stub.FullDuplexCall( + request_iterator, timeout=test_constants.SHORT_TIMEOUT) + with self.assertRaises(grpc.RpcError) as exception_context: + list(responses) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + + def testFullDuplexCallCancelled(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request_iterator = _full_duplex_request_iterator(self._request_pb2) + responses = service.stub.FullDuplexCall(request_iterator) + next(responses) + responses.cancel() + with self.assertRaises(grpc.RpcError) as exception_context: + next(responses) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.CANCELLED) + + def testFullDuplexCallFailed(self): + request_iterator = _full_duplex_request_iterator(self._request_pb2) + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.fail(): + responses = service.stub.FullDuplexCall(request_iterator) + with self.assertRaises(grpc.RpcError) as exception_context: + next(responses) + self.assertIs(exception_context.exception.code(), grpc.StatusCode.UNKNOWN) + + def testHalfDuplexCall(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + def half_duplex_request_iterator(): + request = self._request_pb2.StreamingOutputCallRequest() + request.response_parameters.add(size=1, interval_us=0) + yield request + request = self._request_pb2.StreamingOutputCallRequest() + request.response_parameters.add(size=2, interval_us=0) + request.response_parameters.add(size=3, interval_us=0) + yield request + responses = service.stub.HalfDuplexCall(half_duplex_request_iterator()) + expected_responses = service.servicer_methods.HalfDuplexCall( + half_duplex_request_iterator(), 'not a real RpcContext!') + for expected_response, response in moves.zip_longest( + expected_responses, responses): + self.assertEqual(expected_response, response) + + def testHalfDuplexCallWedged(self): + condition = threading.Condition() + wait_cell = [False] + @contextlib.contextmanager + def wait(): # pylint: disable=invalid-name + # Where's Python 3's 'nonlocal' statement when you need it? + with condition: + wait_cell[0] = True + yield + with condition: + wait_cell[0] = False + condition.notify_all() + def half_duplex_request_iterator(): + request = self._request_pb2.StreamingOutputCallRequest() + request.response_parameters.add(size=1, interval_us=0) + yield request + with condition: + while wait_cell[0]: + condition.wait() + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with wait(): + responses = service.stub.HalfDuplexCall( + half_duplex_request_iterator(), timeout=test_constants.SHORT_TIMEOUT) + # half-duplex waits for the client to send all info + with self.assertRaises(grpc.RpcError) as exception_context: + next(responses) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/qps/benchmark_client.py b/src/python/grpcio/tests/qps/benchmark_client.py index b372ea01ad..080281415d 100644 --- a/src/python/grpcio/tests/qps/benchmark_client.py +++ b/src/python/grpcio/tests/qps/benchmark_client.py @@ -30,14 +30,13 @@ """Defines test client behaviors (UNARY/STREAMING) (SYNC/ASYNC).""" import abc +import threading import time -try: - import Queue as queue # Python 2.x -except ImportError: - import queue # Python 3 from concurrent import futures +from six.moves import queue +import grpc from grpc.beta import implementations from grpc.framework.interfaces.face import face from src.proto.grpc.testing import messages_pb2 @@ -65,6 +64,13 @@ class BenchmarkClient: else: channel = implementations.insecure_channel(host, port) + connected_event = threading.Event() + def wait_for_ready(connectivity): + if connectivity == grpc.ChannelConnectivity.READY: + connected_event.set() + channel.subscribe(wait_for_ready, try_to_connect=True) + connected_event.wait() + if config.payload_config.WhichOneof('payload') == 'simple_params': self._generic = False self._stub = services_pb2.beta_create_BenchmarkService_stub(channel) @@ -82,6 +88,7 @@ class BenchmarkClient: self._response_callbacks = [] def add_response_callback(self, callback): + """callback will be invoked as callback(client, query_time)""" self._response_callbacks.append(callback) @abc.abstractmethod @@ -95,10 +102,10 @@ class BenchmarkClient: def stop(self): pass - def _handle_response(self, query_time): + def _handle_response(self, client, query_time): self._hist.add(query_time * 1e9) # Report times in nanoseconds for callback in self._response_callbacks: - callback(query_time) + callback(client, query_time) class UnarySyncBenchmarkClient(BenchmarkClient): @@ -121,7 +128,7 @@ class UnarySyncBenchmarkClient(BenchmarkClient): start_time = time.time() self._stub.UnaryCall(self._request, _TIMEOUT) end_time = time.time() - self._handle_response(end_time - start_time) + self._handle_response(self, end_time - start_time) class UnaryAsyncBenchmarkClient(BenchmarkClient): @@ -136,19 +143,20 @@ class UnaryAsyncBenchmarkClient(BenchmarkClient): def _response_received(self, start_time, resp): resp.result() end_time = time.time() - self._handle_response(end_time - start_time) + self._handle_response(self, end_time - start_time) def stop(self): self._stub = None -class StreamingSyncBenchmarkClient(BenchmarkClient): +class _SyncStream(object): - def __init__(self, server, config, hist): - super(StreamingSyncBenchmarkClient, self).__init__(server, config, hist) + def __init__(self, stub, generic, request, handle_response): + self._stub = stub + self._generic = generic + self._request = request + self._handle_response = handle_response self._is_streaming = False - self._pool = futures.ThreadPoolExecutor(max_workers=1) - # Use a thread-safe queue to put requests on the stream self._request_queue = queue.Queue() self._send_time_queue = queue.Queue() @@ -158,15 +166,6 @@ class StreamingSyncBenchmarkClient(BenchmarkClient): def start(self): self._is_streaming = True - self._pool.submit(self._request_stream) - - def stop(self): - self._is_streaming = False - self._pool.shutdown(wait=True) - self._stub = None - - def _request_stream(self): - self._is_streaming = True if self._generic: stream_callable = self._stub.stream_stream( 'grpc.testing.BenchmarkService', 'StreamingCall') @@ -175,8 +174,11 @@ class StreamingSyncBenchmarkClient(BenchmarkClient): response_stream = stream_callable(self._request_generator(), _TIMEOUT) for _ in response_stream: - end_time = time.time() - self._handle_response(end_time - self._send_time_queue.get_nowait()) + self._handle_response( + self, time.time() - self._send_time_queue.get_nowait()) + + def stop(self): + self._is_streaming = False def _request_generator(self): while self._is_streaming: @@ -187,46 +189,28 @@ class StreamingSyncBenchmarkClient(BenchmarkClient): pass -class AsyncReceiver(face.ResponseReceiver): - """Receiver for async stream responses.""" - - def __init__(self, send_time_queue, response_handler): - self._send_time_queue = send_time_queue - self._response_handler = response_handler - - def initial_metadata(self, initial_mdetadata): - pass - - def response(self, response): - end_time = time.time() - self._response_handler(end_time - self._send_time_queue.get_nowait()) - - def complete(self, terminal_metadata, code, details): - pass - - -class StreamingAsyncBenchmarkClient(BenchmarkClient): +class StreamingSyncBenchmarkClient(BenchmarkClient): def __init__(self, server, config, hist): - super(StreamingAsyncBenchmarkClient, self).__init__(server, config, hist) - self._send_time_queue = queue.Queue() - self._receiver = AsyncReceiver(self._send_time_queue, self._handle_response) - self._rendezvous = None + super(StreamingSyncBenchmarkClient, self).__init__(server, config, hist) + self._pool = futures.ThreadPoolExecutor( + max_workers=config.outstanding_rpcs_per_channel) + self._streams = [_SyncStream(self._stub, self._generic, + self._request, self._handle_response) + for _ in xrange(config.outstanding_rpcs_per_channel)] + self._curr_stream = 0 def send_request(self): - if self._rendezvous is not None: - self._send_time_queue.put(time.time()) - self._rendezvous.consume(self._request) + # Use a round_robin scheduler to determine what stream to send on + self._streams[self._curr_stream].send_request() + self._curr_stream = (self._curr_stream + 1) % len(self._streams) def start(self): - if self._generic: - stream_callable = self._stub.stream_stream( - 'grpc.testing.BenchmarkService', 'StreamingCall') - else: - stream_callable = self._stub.StreamingCall - self._rendezvous = stream_callable.event( - self._receiver, lambda *args: None, _TIMEOUT) + for stream in self._streams: + self._pool.submit(stream.start) def stop(self): - self._rendezvous.terminate() - self._rendezvous = None + for stream in self._streams: + stream.stop() + self._pool.shutdown(wait=True) + self._stub = None diff --git a/src/python/grpcio/tests/qps/client_runner.py b/src/python/grpcio/tests/qps/client_runner.py index 1ede7d2af1..1fd58687ad 100644 --- a/src/python/grpcio/tests/qps/client_runner.py +++ b/src/python/grpcio/tests/qps/client_runner.py @@ -34,7 +34,7 @@ ClientRunner invokes either periodically or in response to some event. """ import abc -import thread +import threading import time @@ -61,15 +61,18 @@ class OpenLoopClientRunner(ClientRunner): super(OpenLoopClientRunner, self).__init__(client) self._is_running = False self._interval_generator = interval_generator + self._dispatch_thread = threading.Thread( + target=self._dispatch_requests, args=()) def start(self): self._is_running = True self._client.start() - thread.start_new_thread(self._dispatch_requests, ()) - + self._dispatch_thread.start() + def stop(self): self._is_running = False self._client.stop() + self._dispatch_thread.join() self._client = None def _dispatch_requests(self): @@ -98,7 +101,6 @@ class ClosedLoopClientRunner(ClientRunner): self._client.stop() self._client = None - def _send_request(self, response_time): + def _send_request(self, client, response_time): if self._is_running: - self._client.send_request() - + client.send_request() diff --git a/src/python/grpcio/tests/qps/qps_worker.py b/src/python/grpcio/tests/qps/qps_worker.py index 3dda718638..16926379a5 100644 --- a/src/python/grpcio/tests/qps/qps_worker.py +++ b/src/python/grpcio/tests/qps/qps_worker.py @@ -43,9 +43,7 @@ def run_worker_server(port): server.add_insecure_port('[::]:{}'.format(port)) server.start() servicer.wait_for_quit() - # Drain outstanding requests for clean exit - time.sleep(2) - server.stop(0) + server.stop(2) if __name__ == '__main__': diff --git a/src/python/grpcio/tests/qps/worker_server.py b/src/python/grpcio/tests/qps/worker_server.py index 1f9af5482c..d41f8377c2 100644 --- a/src/python/grpcio/tests/qps/worker_server.py +++ b/src/python/grpcio/tests/qps/worker_server.py @@ -153,9 +153,8 @@ class WorkerServer(services_pb2.BetaWorkerServiceServicer): if config.rpc_type == control_pb2.UNARY: client = benchmark_client.UnaryAsyncBenchmarkClient( server, config, qps_data) - elif config.rpc_type == control_pb2.STREAMING: - client = benchmark_client.StreamingAsyncBenchmarkClient( - server, config, qps_data) + else: + raise Exception('Async streaming client not supported') else: raise Exception('Unsupported client type {}'.format(config.client_type)) diff --git a/src/python/grpcio/tests/stress/client.py b/src/python/grpcio/tests/stress/client.py index e2e016760c..0de2532cd8 100644 --- a/src/python/grpcio/tests/stress/client.py +++ b/src/python/grpcio/tests/stress/client.py @@ -30,10 +30,10 @@ """Entry point for running stress tests.""" import argparse -import Queue import threading from grpc.beta import implementations +from six.moves import queue from src.proto.grpc.testing import metrics_pb2 from src.proto.grpc.testing import test_pb2 @@ -94,7 +94,7 @@ def run_test(args): test_cases = _parse_weighted_test_cases(args.test_cases) test_servers = args.server_addresses.split(',') # Propagate any client exceptions with a queue - exception_queue = Queue.Queue() + exception_queue = queue.Queue() stop_event = threading.Event() hist = histogram.Histogram(1, 1) runners = [] @@ -121,7 +121,7 @@ def run_test(args): if timeout_secs < 0: timeout_secs = None raise exception_queue.get(block=True, timeout=timeout_secs) - except Queue.Empty: + except queue.Empty: # No exceptions thrown, success pass finally: diff --git a/src/python/grpcio/tests/tests.json b/src/python/grpcio/tests/tests.json index 691062f25a..20d11b20b5 100644 --- a/src/python/grpcio/tests/tests.json +++ b/src/python/grpcio/tests/tests.json @@ -1,12 +1,20 @@ [ + "_api_test.AllTest", + "_api_test.ChannelConnectivityTest", + "_auth_test.AccessTokenCallCredentialsTest", + "_auth_test.GoogleCallCredentialsTest", "_base_interface_test.AsyncEasyTest", "_base_interface_test.AsyncPeasyTest", "_base_interface_test.SyncEasyTest", "_base_interface_test.SyncPeasyTest", "_beta_features_test.BetaFeaturesTest", "_beta_features_test.ContextManagementAndLifecycleTest", + "_cancel_many_calls_test.CancelManyCallsTest", + "_channel_connectivity_test.ChannelConnectivityTest", + "_channel_ready_future_test.ChannelReadyFutureTest", "_channel_test.ChannelTest", "_connectivity_channel_test.ChannelConnectivityTest", + "_connectivity_channel_test.ConnectivityStatesTest", "_core_over_links_base_interface_test.AsyncEasyTest", "_core_over_links_base_interface_test.AsyncPeasyTest", "_core_over_links_base_interface_test.SyncEasyTest", @@ -23,6 +31,7 @@ "_crust_over_core_over_links_face_interface_test.GenericInvokerFutureInvocationAsynchronousEventServiceTest", "_crust_over_core_over_links_face_interface_test.MultiCallableInvokerBlockingInvocationInlineServiceTest", "_crust_over_core_over_links_face_interface_test.MultiCallableInvokerFutureInvocationAsynchronousEventServiceTest", + "_empty_message_test.EmptyMessageTest", "_face_interface_test.DynamicInvokerBlockingInvocationInlineServiceTest", "_face_interface_test.DynamicInvokerFutureInvocationAsynchronousEventServiceTest", "_face_interface_test.GenericInvokerBlockingInvocationInlineServiceTest", @@ -30,6 +39,7 @@ "_face_interface_test.MultiCallableInvokerBlockingInvocationInlineServiceTest", "_face_interface_test.MultiCallableInvokerFutureInvocationAsynchronousEventServiceTest", "_health_servicer_test.HealthServicerTest", + "_implementations_test.CallCredentialsTest", "_implementations_test.ChannelCredentialsTest", "_insecure_interop_test.InsecureInteropTest", "_intermediary_low_test.CancellationTest", @@ -41,9 +51,14 @@ "_lonely_invocation_link_test.LonelyInvocationLinkTest", "_low_test.HangingServerShutdown", "_low_test.InsecureServerInsecureClient", + "_metadata_test.MetadataTest", "_not_found_test.NotFoundTest", + "_python_plugin_test.PythonPluginTest", + "_read_some_but_not_all_responses_test.ReadSomeButNotAllResponsesTest", + "_rpc_test.RPCTest", "_sanity_test.Sanity", "_secure_interop_test.SecureInteropTest", + "_thread_cleanup_test.CleanupThreadTest", "_transmission_test.RoundTripTest", "_transmission_test.TransmissionTest", "_utilities_test.ChannelConnectivityTest", diff --git a/src/python/grpcio/tests/unit/_adapter/_intermediary_low_test.py b/src/python/grpcio/tests/unit/_adapter/_intermediary_low_test.py index 22d4b019c7..09ebdeff33 100644 --- a/src/python/grpcio/tests/unit/_adapter/_intermediary_low_test.py +++ b/src/python/grpcio/tests/unit/_adapter/_intermediary_low_test.py @@ -164,15 +164,15 @@ class EchoTest(unittest.TestCase): self.assertIsNotNone(service_accepted) self.assertIs(service_accepted.kind, _low.Event.Kind.SERVICE_ACCEPTED) self.assertIs(service_accepted.tag, service_tag) - self.assertEqual(method, service_accepted.service_acceptance.method) - self.assertEqual(self.host, service_accepted.service_acceptance.host) + self.assertEqual(method.encode(), service_accepted.service_acceptance.method) + self.assertEqual(self.host.encode(), service_accepted.service_acceptance.host) self.assertIsNotNone(service_accepted.service_acceptance.call) metadata = dict(service_accepted.metadata) - self.assertIn(client_metadata_key, metadata) - self.assertEqual(client_metadata_value, metadata[client_metadata_key]) - self.assertIn(client_binary_metadata_key, metadata) + self.assertIn(client_metadata_key.encode(), metadata) + self.assertEqual(client_metadata_value.encode(), metadata[client_metadata_key.encode()]) + self.assertIn(client_binary_metadata_key.encode(), metadata) self.assertEqual(client_binary_metadata_value, - metadata[client_binary_metadata_key]) + metadata[client_binary_metadata_key.encode()]) server_call = service_accepted.service_acceptance.call server_call.accept(self.server_completion_queue, finish_tag) server_call.add_metadata(server_leading_metadata_key, @@ -186,12 +186,12 @@ class EchoTest(unittest.TestCase): self.assertEqual(_low.Event.Kind.METADATA_ACCEPTED, metadata_accepted.kind) self.assertEqual(metadata_tag, metadata_accepted.tag) metadata = dict(metadata_accepted.metadata) - self.assertIn(server_leading_metadata_key, metadata) - self.assertEqual(server_leading_metadata_value, - metadata[server_leading_metadata_key]) - self.assertIn(server_leading_binary_metadata_key, metadata) + self.assertIn(server_leading_metadata_key.encode(), metadata) + self.assertEqual(server_leading_metadata_value.encode(), + metadata[server_leading_metadata_key.encode()]) + self.assertIn(server_leading_binary_metadata_key.encode(), metadata) self.assertEqual(server_leading_binary_metadata_value, - metadata[server_leading_binary_metadata_key]) + metadata[server_leading_binary_metadata_key.encode()]) for datum in test_data: client_call.write(datum, write_tag, _low.WriteFlags.WRITE_NO_COMPRESS) @@ -277,17 +277,17 @@ class EchoTest(unittest.TestCase): self.assertIsNone(read_accepted.bytes) self.assertEqual(_low.Event.Kind.FINISH, finish_accepted.kind) self.assertEqual(finish_tag, finish_accepted.tag) - self.assertEqual(_low.Status(_low.Code.OK, details), finish_accepted.status) + self.assertEqual(_low.Status(_low.Code.OK, details.encode()), finish_accepted.status) metadata = dict(finish_accepted.metadata) - self.assertIn(server_trailing_metadata_key, metadata) - self.assertEqual(server_trailing_metadata_value, - metadata[server_trailing_metadata_key]) - self.assertIn(server_trailing_binary_metadata_key, metadata) + self.assertIn(server_trailing_metadata_key.encode(), metadata) + self.assertEqual(server_trailing_metadata_value.encode(), + metadata[server_trailing_metadata_key.encode()]) + self.assertIn(server_trailing_binary_metadata_key.encode(), metadata) self.assertEqual(server_trailing_binary_metadata_value, - metadata[server_trailing_binary_metadata_key]) + metadata[server_trailing_binary_metadata_key.encode()]) self.assertSetEqual(set(key for key, _ in finish_accepted.metadata), - set((server_trailing_metadata_key, - server_trailing_binary_metadata_key,))) + set((server_trailing_metadata_key.encode(), + server_trailing_binary_metadata_key.encode(),))) self.assertSequenceEqual(test_data, server_data) self.assertSequenceEqual(test_data, client_data) @@ -302,7 +302,8 @@ class EchoTest(unittest.TestCase): self._perform_echo_test([_BYTE_SEQUENCE]) def testManyOneByteEchoes(self): - self._perform_echo_test(_BYTE_SEQUENCE) + self._perform_echo_test( + [_BYTE_SEQUENCE[i:i+1] for i in range(len(_BYTE_SEQUENCE))]) def testManyManyByteEchoes(self): self._perform_echo_test(_BYTE_SEQUENCE_SEQUENCE) @@ -409,7 +410,7 @@ class CancellationTest(unittest.TestCase): finish_event = self.client_events.get() self.assertEqual(_low.Event.Kind.FINISH, finish_event.kind) - self.assertEqual(_low.Status(_low.Code.CANCELLED, 'Cancelled'), + self.assertEqual(_low.Status(_low.Code.CANCELLED, b'Cancelled'), finish_event.status) self.assertSequenceEqual(test_data, server_data) diff --git a/src/python/grpcio/tests/unit/_adapter/_low_test.py b/src/python/grpcio/tests/unit/_adapter/_low_test.py index ec46617996..e09a1f2564 100644 --- a/src/python/grpcio/tests/unit/_adapter/_low_test.py +++ b/src/python/grpcio/tests/unit/_adapter/_low_test.py @@ -148,11 +148,11 @@ class InsecureServerInsecureClient(unittest.TestCase): # Check that Python's user agent string is a part of the full user agent # string received_initial_metadata_dict = dict(received_initial_metadata) - self.assertIn('user-agent', received_initial_metadata_dict) - self.assertIn('Python-gRPC-{}'.format(_grpcio_metadata.__version__), - received_initial_metadata_dict['user-agent']) - self.assertEqual(method, request_event.call_details.method) - self.assertEqual(host, request_event.call_details.host) + self.assertIn(b'user-agent', received_initial_metadata_dict) + self.assertIn('Python-gRPC-{}'.format(_grpcio_metadata.__version__).encode(), + received_initial_metadata_dict[b'user-agent']) + self.assertEqual(method.encode(), request_event.call_details.method) + self.assertEqual(host.encode(), request_event.call_details.host) self.assertLess(abs(deadline - request_event.call_details.deadline), deadline_tolerance) @@ -198,12 +198,12 @@ class InsecureServerInsecureClient(unittest.TestCase): test_common.metadata_transmitted(server_initial_metadata, client_result.initial_metadata)) elif client_result.type == _types.OpType.RECV_MESSAGE: - self.assertEqual(response, client_result.message) + self.assertEqual(response.encode(), client_result.message) elif client_result.type == _types.OpType.RECV_STATUS_ON_CLIENT: self.assertTrue( test_common.metadata_transmitted(server_trailing_metadata, client_result.trailing_metadata)) - self.assertEqual(server_status_details, client_result.status.details) + self.assertEqual(server_status_details.encode(), client_result.status.details) self.assertEqual(server_status_code, client_result.status.code) self.assertEqual(set([ _types.OpType.SEND_INITIAL_METADATA, @@ -220,7 +220,7 @@ class InsecureServerInsecureClient(unittest.TestCase): self.assertNotIn(client_result.type, found_server_op_types) found_server_op_types.add(server_result.type) if server_result.type == _types.OpType.RECV_MESSAGE: - self.assertEqual(request, server_result.message) + self.assertEqual(request.encode(), server_result.message) elif server_result.type == _types.OpType.RECV_CLOSE_ON_SERVER: self.assertFalse(server_result.cancelled) self.assertEqual(set([ diff --git a/src/python/grpcio/tests/unit/_api_test.py b/src/python/grpcio/tests/unit/_api_test.py new file mode 100644 index 0000000000..1501ec2a04 --- /dev/null +++ b/src/python/grpcio/tests/unit/_api_test.py @@ -0,0 +1,104 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Test of gRPC Python's application-layer API.""" + +import unittest + +import six + +import grpc + +from tests.unit import _from_grpc_import_star + + +class AllTest(unittest.TestCase): + + def testAll(self): + expected_grpc_code_elements = ( + 'FutureTimeoutError', + 'FutureCancelledError', + 'Future', + 'ChannelConnectivity', + 'StatusCode', + 'RpcError', + 'RpcContext', + 'Call', + 'ChannelCredentials', + 'CallCredentials', + 'AuthMetadataContext', + 'AuthMetadataPluginCallback', + 'AuthMetadataPlugin', + 'ServerCredentials', + 'UnaryUnaryMultiCallable', + 'UnaryStreamMultiCallable', + 'StreamUnaryMultiCallable', + 'StreamStreamMultiCallable', + 'Channel', + 'ServicerContext', + 'RpcMethodHandler', + 'HandlerCallDetails', + 'GenericRpcHandler', + 'Server', + 'unary_unary_rpc_method_handler', + 'unary_stream_rpc_method_handler', + 'stream_unary_rpc_method_handler', + 'stream_stream_rpc_method_handler', + 'method_handlers_generic_handler', + 'ssl_channel_credentials', + 'metadata_call_credentials', + 'access_token_call_credentials', + 'composite_call_credentials', + 'composite_channel_credentials', + 'ssl_server_credentials', + 'channel_ready_future', + 'insecure_channel', + 'secure_channel', + 'server', + ) + + six.assertCountEqual( + self, expected_grpc_code_elements, + _from_grpc_import_star.GRPC_ELEMENTS) + + +class ChannelConnectivityTest(unittest.TestCase): + + def testChannelConnectivity(self): + self.assertSequenceEqual( + (grpc.ChannelConnectivity.IDLE, + grpc.ChannelConnectivity.CONNECTING, + grpc.ChannelConnectivity.READY, + grpc.ChannelConnectivity.TRANSIENT_FAILURE, + grpc.ChannelConnectivity.SHUTDOWN,), + tuple(grpc.ChannelConnectivity)) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/_auth_test.py b/src/python/grpcio/tests/unit/_auth_test.py new file mode 100644 index 0000000000..c31f7b06f7 --- /dev/null +++ b/src/python/grpcio/tests/unit/_auth_test.py @@ -0,0 +1,96 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Tests of standard AuthMetadataPlugins.""" + +import collections +import threading +import unittest + +from grpc import _auth + + +class MockGoogleCreds(object): + + def get_access_token(self): + token = collections.namedtuple('MockAccessTokenInfo', + ('access_token', 'expires_in')) + token.access_token = 'token' + return token + + +class MockExceptionGoogleCreds(object): + + def get_access_token(self): + raise Exception() + + +class GoogleCallCredentialsTest(unittest.TestCase): + + def test_google_call_credentials_success(self): + callback_event = threading.Event() + + def mock_callback(metadata, error): + self.assertEqual(metadata, (('authorization', 'Bearer token'),)) + self.assertIsNone(error) + callback_event.set() + + call_creds = _auth.GoogleCallCredentials(MockGoogleCreds()) + call_creds(None, mock_callback) + self.assertTrue(callback_event.wait(1.0)) + + def test_google_call_credentials_error(self): + callback_event = threading.Event() + + def mock_callback(metadata, error): + self.assertIsNotNone(error) + callback_event.set() + + call_creds = _auth.GoogleCallCredentials(MockExceptionGoogleCreds()) + call_creds(None, mock_callback) + self.assertTrue(callback_event.wait(1.0)) + + +class AccessTokenCallCredentialsTest(unittest.TestCase): + + def test_google_call_credentials_success(self): + callback_event = threading.Event() + + def mock_callback(metadata, error): + self.assertEqual(metadata, (('authorization', 'Bearer token'),)) + self.assertIsNone(error) + callback_event.set() + + call_creds = _auth.AccessTokenCallCredentials('token') + call_creds(None, mock_callback) + self.assertTrue(callback_event.wait(1.0)) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/_channel_connectivity_test.py b/src/python/grpcio/tests/unit/_channel_connectivity_test.py new file mode 100644 index 0000000000..a1575efada --- /dev/null +++ b/src/python/grpcio/tests/unit/_channel_connectivity_test.py @@ -0,0 +1,161 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Tests of grpc._channel.Channel connectivity.""" + +import threading +import time +import unittest +from concurrent import futures + +import grpc +from grpc import _channel +from grpc import _server +from tests.unit.framework.common import test_constants + + +def _ready_in_connectivities(connectivities): + return grpc.ChannelConnectivity.READY in connectivities + + +def _last_connectivity_is_not_ready(connectivities): + return connectivities[-1] is not grpc.ChannelConnectivity.READY + + +class _Callback(object): + + def __init__(self): + self._condition = threading.Condition() + self._connectivities = [] + + def update(self, connectivity): + with self._condition: + self._connectivities.append(connectivity) + self._condition.notify() + + def connectivities(self): + with self._condition: + return tuple(self._connectivities) + + def block_until_connectivities_satisfy(self, predicate): + with self._condition: + while True: + connectivities = tuple(self._connectivities) + if predicate(connectivities): + return connectivities + else: + self._condition.wait() + + +class ChannelConnectivityTest(unittest.TestCase): + + def test_lonely_channel_connectivity(self): + callback = _Callback() + + channel = _channel.Channel('localhost:12345', None, None) + channel.subscribe(callback.update, try_to_connect=False) + first_connectivities = callback.block_until_connectivities_satisfy(bool) + channel.subscribe(callback.update, try_to_connect=True) + second_connectivities = callback.block_until_connectivities_satisfy( + lambda connectivities: 2 <= len(connectivities)) + # Wait for a connection that will never happen. + time.sleep(test_constants.SHORT_TIMEOUT) + third_connectivities = callback.connectivities() + channel.unsubscribe(callback.update) + fourth_connectivities = callback.connectivities() + channel.unsubscribe(callback.update) + fifth_connectivities = callback.connectivities() + + self.assertSequenceEqual( + (grpc.ChannelConnectivity.IDLE,), first_connectivities) + self.assertNotIn( + grpc.ChannelConnectivity.READY, second_connectivities) + self.assertNotIn( + grpc.ChannelConnectivity.READY, third_connectivities) + self.assertNotIn( + grpc.ChannelConnectivity.READY, fourth_connectivities) + self.assertNotIn( + grpc.ChannelConnectivity.READY, fifth_connectivities) + + def test_immediately_connectable_channel_connectivity(self): + server = _server.Server((), futures.ThreadPoolExecutor(max_workers=0)) + port = server.add_insecure_port('[::]:0') + server.start() + first_callback = _Callback() + second_callback = _Callback() + + channel = _channel.Channel('localhost:{}'.format(port), None, None) + channel.subscribe(first_callback.update, try_to_connect=False) + first_connectivities = first_callback.block_until_connectivities_satisfy( + bool) + # Wait for a connection that will never happen because try_to_connect=True + # has not yet been passed. + time.sleep(test_constants.SHORT_TIMEOUT) + second_connectivities = first_callback.connectivities() + channel.subscribe(second_callback.update, try_to_connect=True) + third_connectivities = first_callback.block_until_connectivities_satisfy( + lambda connectivities: 2 <= len(connectivities)) + fourth_connectivities = second_callback.block_until_connectivities_satisfy( + bool) + # Wait for a connection that will happen (or may already have happened). + first_callback.block_until_connectivities_satisfy(_ready_in_connectivities) + second_callback.block_until_connectivities_satisfy(_ready_in_connectivities) + del channel + + self.assertSequenceEqual( + (grpc.ChannelConnectivity.IDLE,), first_connectivities) + self.assertSequenceEqual( + (grpc.ChannelConnectivity.IDLE,), second_connectivities) + self.assertNotIn( + grpc.ChannelConnectivity.TRANSIENT_FAILURE, third_connectivities) + self.assertNotIn( + grpc.ChannelConnectivity.FATAL_FAILURE, third_connectivities) + self.assertNotIn( + grpc.ChannelConnectivity.TRANSIENT_FAILURE, + fourth_connectivities) + self.assertNotIn( + grpc.ChannelConnectivity.FATAL_FAILURE, fourth_connectivities) + + def test_reachable_then_unreachable_channel_connectivity(self): + server = _server.Server((), futures.ThreadPoolExecutor(max_workers=0)) + port = server.add_insecure_port('[::]:0') + server.start() + callback = _Callback() + + channel = _channel.Channel('localhost:{}'.format(port), None, None) + channel.subscribe(callback.update, try_to_connect=True) + callback.block_until_connectivities_satisfy(_ready_in_connectivities) + # Now take down the server and confirm that channel readiness is repudiated. + server.stop(None) + callback.block_until_connectivities_satisfy(_last_connectivity_is_not_ready) + channel.unsubscribe(callback.update) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/_channel_ready_future_test.py b/src/python/grpcio/tests/unit/_channel_ready_future_test.py new file mode 100644 index 0000000000..b84bc0197a --- /dev/null +++ b/src/python/grpcio/tests/unit/_channel_ready_future_test.py @@ -0,0 +1,103 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Tests of grpc.channel_ready_future.""" + +import threading +import unittest +from concurrent import futures + +import grpc +from grpc import _channel +from grpc import _server +from tests.unit.framework.common import test_constants + + +class _Callback(object): + + def __init__(self): + self._condition = threading.Condition() + self._value = None + + def accept_value(self, value): + with self._condition: + self._value = value + self._condition.notify_all() + + def block_until_called(self): + with self._condition: + while self._value is None: + self._condition.wait() + return self._value + + +class ChannelReadyFutureTest(unittest.TestCase): + + def test_lonely_channel_connectivity(self): + channel = grpc.insecure_channel('localhost:12345') + callback = _Callback() + + ready_future = grpc.channel_ready_future(channel) + ready_future.add_done_callback(callback.accept_value) + with self.assertRaises(grpc.FutureTimeoutError): + ready_future.result(test_constants.SHORT_TIMEOUT) + self.assertFalse(ready_future.cancelled()) + self.assertFalse(ready_future.done()) + self.assertTrue(ready_future.running()) + ready_future.cancel() + value_passed_to_callback = callback.block_until_called() + self.assertIs(ready_future, value_passed_to_callback) + self.assertTrue(ready_future.cancelled()) + self.assertTrue(ready_future.done()) + self.assertFalse(ready_future.running()) + + def test_immediately_connectable_channel_connectivity(self): + server = _server.Server((), futures.ThreadPoolExecutor(max_workers=0)) + port = server.add_insecure_port('[::]:0') + server.start() + channel = grpc.insecure_channel('localhost:{}'.format(port)) + callback = _Callback() + + ready_future = grpc.channel_ready_future(channel) + ready_future.add_done_callback(callback.accept_value) + self.assertIsNone(ready_future.result(test_constants.SHORT_TIMEOUT)) + value_passed_to_callback = callback.block_until_called() + self.assertIs(ready_future, value_passed_to_callback) + self.assertFalse(ready_future.cancelled()) + self.assertTrue(ready_future.done()) + self.assertFalse(ready_future.running()) + # Cancellation after maturity has no effect. + ready_future.cancel() + self.assertFalse(ready_future.cancelled()) + self.assertTrue(ready_future.done()) + self.assertFalse(ready_future.running()) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/_cython/_cancel_many_calls_test.py b/src/python/grpcio/tests/unit/_cython/_cancel_many_calls_test.py new file mode 100644 index 0000000000..c1de779014 --- /dev/null +++ b/src/python/grpcio/tests/unit/_cython/_cancel_many_calls_test.py @@ -0,0 +1,222 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Test making many calls and immediately cancelling most of them.""" + +import threading +import unittest + +from grpc._cython import cygrpc +from grpc.framework.foundation import logging_pool +from tests.unit.framework.common import test_constants + +_INFINITE_FUTURE = cygrpc.Timespec(float('+inf')) +_EMPTY_FLAGS = 0 +_EMPTY_METADATA = cygrpc.Metadata(()) + +_SERVER_SHUTDOWN_TAG = 'server_shutdown' +_REQUEST_CALL_TAG = 'request_call' +_RECEIVE_CLOSE_ON_SERVER_TAG = 'receive_close_on_server' +_RECEIVE_MESSAGE_TAG = 'receive_message' +_SERVER_COMPLETE_CALL_TAG = 'server_complete_call' + +_SUCCESS_CALL_FRACTION = 1.0 / 8.0 + + +class _State(object): + + def __init__(self): + self.condition = threading.Condition() + self.handlers_released = False + self.parked_handlers = 0 + self.handled_rpcs = 0 + + +def _is_cancellation_event(event): + return ( + event.tag is _RECEIVE_CLOSE_ON_SERVER_TAG and + event.batch_operations[0].received_cancelled) + + +class _Handler(object): + + def __init__(self, state, completion_queue, rpc_event): + self._state = state + self._lock = threading.Lock() + self._completion_queue = completion_queue + self._call = rpc_event.operation_call + + def __call__(self): + with self._state.condition: + self._state.parked_handlers += 1 + if self._state.parked_handlers == test_constants.THREAD_CONCURRENCY: + self._state.condition.notify_all() + while not self._state.handlers_released: + self._state.condition.wait() + + with self._lock: + self._call.start_batch( + cygrpc.Operations( + (cygrpc.operation_receive_close_on_server(_EMPTY_FLAGS),)), + _RECEIVE_CLOSE_ON_SERVER_TAG) + self._call.start_batch( + cygrpc.Operations((cygrpc.operation_receive_message(_EMPTY_FLAGS),)), + _RECEIVE_MESSAGE_TAG) + first_event = self._completion_queue.poll() + if _is_cancellation_event(first_event): + self._completion_queue.poll() + else: + with self._lock: + operations = ( + cygrpc.operation_send_initial_metadata( + _EMPTY_METADATA, _EMPTY_FLAGS), + cygrpc.operation_send_message(b'\x79\x57', _EMPTY_FLAGS), + cygrpc.operation_send_status_from_server( + _EMPTY_METADATA, cygrpc.StatusCode.ok, b'test details!', + _EMPTY_FLAGS), + ) + self._call.start_batch( + cygrpc.Operations(operations), _SERVER_COMPLETE_CALL_TAG) + self._completion_queue.poll() + self._completion_queue.poll() + + +def _serve(state, server, server_completion_queue, thread_pool): + for _ in range(test_constants.RPC_CONCURRENCY): + call_completion_queue = cygrpc.CompletionQueue() + server.request_call( + call_completion_queue, server_completion_queue, _REQUEST_CALL_TAG) + rpc_event = server_completion_queue.poll() + thread_pool.submit(_Handler(state, call_completion_queue, rpc_event)) + with state.condition: + state.handled_rpcs += 1 + if test_constants.RPC_CONCURRENCY <= state.handled_rpcs: + state.condition.notify_all() + server_completion_queue.poll() + + +class _QueueDriver(object): + + def __init__(self, condition, completion_queue, due): + self._condition = condition + self._completion_queue = completion_queue + self._due = due + self._events = [] + self._returned = False + + def start(self): + def in_thread(): + while True: + event = self._completion_queue.poll() + with self._condition: + self._events.append(event) + self._due.remove(event.tag) + self._condition.notify_all() + if not self._due: + self._returned = True + return + thread = threading.Thread(target=in_thread) + thread.start() + + def events(self, at_least): + with self._condition: + while len(self._events) < at_least: + self._condition.wait() + return tuple(self._events) + + +class CancelManyCallsTest(unittest.TestCase): + + def testCancelManyCalls(self): + server_thread_pool = logging_pool.pool(test_constants.THREAD_CONCURRENCY) + + server_completion_queue = cygrpc.CompletionQueue() + server = cygrpc.Server() + server.register_completion_queue(server_completion_queue) + port = server.add_http2_port('[::]:0') + server.start() + channel = cygrpc.Channel('localhost:{}'.format(port)) + + state = _State() + + server_thread_args = ( + state, server, server_completion_queue, server_thread_pool,) + server_thread = threading.Thread(target=_serve, args=server_thread_args) + server_thread.start() + + client_condition = threading.Condition() + client_due = set() + client_completion_queue = cygrpc.CompletionQueue() + client_driver = _QueueDriver( + client_condition, client_completion_queue, client_due) + client_driver.start() + + with client_condition: + client_calls = [] + for index in range(test_constants.RPC_CONCURRENCY): + client_call = channel.create_call( + None, _EMPTY_FLAGS, client_completion_queue, b'/twinkies', None, + _INFINITE_FUTURE) + operations = ( + cygrpc.operation_send_initial_metadata( + _EMPTY_METADATA, _EMPTY_FLAGS), + cygrpc.operation_send_message(b'\x45\x56', _EMPTY_FLAGS), + cygrpc.operation_send_close_from_client(_EMPTY_FLAGS), + cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS), + cygrpc.operation_receive_message(_EMPTY_FLAGS), + cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS), + ) + tag = 'client_complete_call_{0:04d}_tag'.format(index) + client_call.start_batch(cygrpc.Operations(operations), tag) + client_due.add(tag) + client_calls.append(client_call) + + with state.condition: + while True: + if state.parked_handlers < test_constants.THREAD_CONCURRENCY: + state.condition.wait() + elif state.handled_rpcs < test_constants.RPC_CONCURRENCY: + state.condition.wait() + else: + state.handlers_released = True + state.condition.notify_all() + break + + client_driver.events( + test_constants.RPC_CONCURRENCY * _SUCCESS_CALL_FRACTION) + with client_condition: + for client_call in client_calls: + client_call.cancel() + + with state.condition: + server.shutdown(server_completion_queue, _SERVER_SHUTDOWN_TAG) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/_cython/_read_some_but_not_all_responses_test.py b/src/python/grpcio/tests/unit/_cython/_read_some_but_not_all_responses_test.py new file mode 100644 index 0000000000..6ae7a90fbe --- /dev/null +++ b/src/python/grpcio/tests/unit/_cython/_read_some_but_not_all_responses_test.py @@ -0,0 +1,251 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Test a corner-case at the level of the Cython API.""" + +import threading +import unittest + +from grpc._cython import cygrpc + +_INFINITE_FUTURE = cygrpc.Timespec(float('+inf')) +_EMPTY_FLAGS = 0 +_EMPTY_METADATA = cygrpc.Metadata(()) + + +class _ServerDriver(object): + + def __init__(self, completion_queue, shutdown_tag): + self._condition = threading.Condition() + self._completion_queue = completion_queue + self._shutdown_tag = shutdown_tag + self._events = [] + self._saw_shutdown_tag = False + + def start(self): + def in_thread(): + while True: + event = self._completion_queue.poll() + with self._condition: + self._events.append(event) + self._condition.notify() + if event.tag is self._shutdown_tag: + self._saw_shutdown_tag = True + break + thread = threading.Thread(target=in_thread) + thread.start() + + def done(self): + with self._condition: + return self._saw_shutdown_tag + + def first_event(self): + with self._condition: + while not self._events: + self._condition.wait() + return self._events[0] + + def events(self): + with self._condition: + while not self._saw_shutdown_tag: + self._condition.wait() + return tuple(self._events) + + +class _QueueDriver(object): + + def __init__(self, condition, completion_queue, due): + self._condition = condition + self._completion_queue = completion_queue + self._due = due + self._events = [] + self._returned = False + + def start(self): + def in_thread(): + while True: + event = self._completion_queue.poll() + with self._condition: + self._events.append(event) + self._due.remove(event.tag) + self._condition.notify_all() + if not self._due: + self._returned = True + return + thread = threading.Thread(target=in_thread) + thread.start() + + def done(self): + with self._condition: + return self._returned + + def event_with_tag(self, tag): + with self._condition: + while True: + for event in self._events: + if event.tag is tag: + return event + self._condition.wait() + + def events(self): + with self._condition: + while not self._returned: + self._condition.wait() + return tuple(self._events) + + +class ReadSomeButNotAllResponsesTest(unittest.TestCase): + + def testReadSomeButNotAllResponses(self): + server_completion_queue = cygrpc.CompletionQueue() + server = cygrpc.Server() + server.register_completion_queue(server_completion_queue) + port = server.add_http2_port('[::]:0') + server.start() + channel = cygrpc.Channel('localhost:{}'.format(port)) + + server_shutdown_tag = 'server_shutdown_tag' + server_driver = _ServerDriver(server_completion_queue, server_shutdown_tag) + server_driver.start() + + client_condition = threading.Condition() + client_due = set() + client_completion_queue = cygrpc.CompletionQueue() + client_driver = _QueueDriver( + client_condition, client_completion_queue, client_due) + client_driver.start() + + server_call_condition = threading.Condition() + server_send_initial_metadata_tag = 'server_send_initial_metadata_tag' + server_send_first_message_tag = 'server_send_first_message_tag' + server_send_second_message_tag = 'server_send_second_message_tag' + server_complete_rpc_tag = 'server_complete_rpc_tag' + server_call_due = set(( + server_send_initial_metadata_tag, + server_send_first_message_tag, + server_send_second_message_tag, + server_complete_rpc_tag, + )) + server_call_completion_queue = cygrpc.CompletionQueue() + server_call_driver = _QueueDriver( + server_call_condition, server_call_completion_queue, server_call_due) + server_call_driver.start() + + server_rpc_tag = 'server_rpc_tag' + request_call_result = server.request_call( + server_call_completion_queue, server_completion_queue, server_rpc_tag) + + client_call = channel.create_call( + None, _EMPTY_FLAGS, client_completion_queue, b'/twinkies', None, + _INFINITE_FUTURE) + client_receive_initial_metadata_tag = 'client_receive_initial_metadata_tag' + client_complete_rpc_tag = 'client_complete_rpc_tag' + with client_condition: + client_receive_initial_metadata_start_batch_result = ( + client_call.start_batch(cygrpc.Operations([ + cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS), + ]), client_receive_initial_metadata_tag)) + client_due.add(client_receive_initial_metadata_tag) + client_complete_rpc_start_batch_result = ( + client_call.start_batch(cygrpc.Operations([ + cygrpc.operation_send_initial_metadata( + _EMPTY_METADATA, _EMPTY_FLAGS), + cygrpc.operation_send_close_from_client(_EMPTY_FLAGS), + cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS), + ]), client_complete_rpc_tag)) + client_due.add(client_complete_rpc_tag) + + server_rpc_event = server_driver.first_event() + + with server_call_condition: + server_send_initial_metadata_start_batch_result = ( + server_rpc_event.operation_call.start_batch(cygrpc.Operations([ + cygrpc.operation_send_initial_metadata( + _EMPTY_METADATA, _EMPTY_FLAGS), + ]), server_send_initial_metadata_tag)) + server_send_first_message_start_batch_result = ( + server_rpc_event.operation_call.start_batch(cygrpc.Operations([ + cygrpc.operation_send_message(b'\x07', _EMPTY_FLAGS), + ]), server_send_first_message_tag)) + server_send_initial_metadata_event = server_call_driver.event_with_tag( + server_send_initial_metadata_tag) + server_send_first_message_event = server_call_driver.event_with_tag( + server_send_first_message_tag) + with server_call_condition: + server_send_second_message_start_batch_result = ( + server_rpc_event.operation_call.start_batch(cygrpc.Operations([ + cygrpc.operation_send_message(b'\x07', _EMPTY_FLAGS), + ]), server_send_second_message_tag)) + server_complete_rpc_start_batch_result = ( + server_rpc_event.operation_call.start_batch(cygrpc.Operations([ + cygrpc.operation_receive_close_on_server(_EMPTY_FLAGS), + cygrpc.operation_send_status_from_server( + cygrpc.Metadata(()), cygrpc.StatusCode.ok, b'test details', + _EMPTY_FLAGS), + ]), server_complete_rpc_tag)) + server_send_second_message_event = server_call_driver.event_with_tag( + server_send_second_message_tag) + server_complete_rpc_event = server_call_driver.event_with_tag( + server_complete_rpc_tag) + server_call_driver.events() + + with client_condition: + client_receive_first_message_tag = 'client_receive_first_message_tag' + client_receive_first_message_start_batch_result = ( + client_call.start_batch(cygrpc.Operations([ + cygrpc.operation_receive_message(_EMPTY_FLAGS), + ]), client_receive_first_message_tag)) + client_due.add(client_receive_first_message_tag) + client_receive_first_message_event = client_driver.event_with_tag( + client_receive_first_message_tag) + + client_call_cancel_result = client_call.cancel() + client_driver.events() + + server.shutdown(server_completion_queue, server_shutdown_tag) + server.cancel_all_calls() + server_driver.events() + + self.assertEqual(cygrpc.CallError.ok, request_call_result) + self.assertEqual( + cygrpc.CallError.ok, server_send_initial_metadata_start_batch_result) + self.assertEqual( + cygrpc.CallError.ok, client_receive_initial_metadata_start_batch_result) + self.assertEqual( + cygrpc.CallError.ok, client_complete_rpc_start_batch_result) + self.assertEqual(cygrpc.CallError.ok, client_call_cancel_result) + self.assertIs(server_rpc_tag, server_rpc_event.tag) + self.assertEqual( + cygrpc.CompletionType.operation_complete, server_rpc_event.type) + self.assertIsInstance(server_rpc_event.operation_call, cygrpc.Call) + self.assertEqual(0, len(server_rpc_event.batch_operations)) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/_cython/cygrpc_test.py b/src/python/grpcio/tests/unit/_cython/cygrpc_test.py index 0a511101f0..a006a20ce3 100644 --- a/src/python/grpcio/tests/unit/_cython/cygrpc_test.py +++ b/src/python/grpcio/tests/unit/_cython/cygrpc_test.py @@ -37,7 +37,7 @@ from tests.unit import test_common from tests.unit import resources -_SSL_HOST_OVERRIDE = 'foo.test.google.fr' +_SSL_HOST_OVERRIDE = b'foo.test.google.fr' _CALL_CREDENTIALS_METADATA_KEY = 'call-creds-key' _CALL_CREDENTIALS_METADATA_VALUE = 'call-creds-value' _EMPTY_FLAGS = 0 @@ -143,22 +143,60 @@ class TypeSmokeTest(unittest.TestCase): del completion_queue -class InsecureServerInsecureClient(unittest.TestCase): +class ServerClientMixin(object): - def setUp(self): + def setUpMixin(self, server_credentials, client_credentials, host_override): self.server_completion_queue = cygrpc.CompletionQueue() self.server = cygrpc.Server() self.server.register_completion_queue(self.server_completion_queue) - self.port = self.server.add_http2_port('[::]:0') + if server_credentials: + self.port = self.server.add_http2_port('[::]:0', server_credentials) + else: + self.port = self.server.add_http2_port('[::]:0') self.server.start() self.client_completion_queue = cygrpc.CompletionQueue() - self.client_channel = cygrpc.Channel('localhost:{}'.format(self.port)) - - def tearDown(self): + if client_credentials: + client_channel_arguments = cygrpc.ChannelArgs([ + cygrpc.ChannelArg(cygrpc.ChannelArgKey.ssl_target_name_override, + host_override)]) + self.client_channel = cygrpc.Channel( + 'localhost:{}'.format(self.port), client_channel_arguments, + client_credentials) + else: + self.client_channel = cygrpc.Channel('localhost:{}'.format(self.port)) + if host_override: + self.host_argument = None # default host + self.expected_host = host_override + else: + # arbitrary host name necessitating no further identification + self.host_argument = b'hostess' + self.expected_host = self.host_argument + + def tearDownMixin(self): del self.server del self.client_completion_queue del self.server_completion_queue + def _perform_operations(self, operations, call, queue, deadline, description): + """Perform the list of operations with given call, queue, and deadline. + + Invocation errors are reported with as an exception with `description` in + the message. Performs the operations asynchronously, returning a future. + """ + def performer(): + tag = object() + try: + call_result = call.start_batch(cygrpc.Operations(operations), tag) + self.assertEqual(cygrpc.CallError.ok, call_result) + event = queue.poll(deadline) + self.assertEqual(cygrpc.CompletionType.operation_complete, event.type) + self.assertTrue(event.success) + self.assertIs(tag, event.tag) + except Exception as error: + raise Exception("Error in '{}': {}".format(description, error.message)) + return event + return test_utilities.SimpleFuture(performer) + def testEcho(self): DEADLINE = time.time()+5 DEADLINE_TOLERANCE = 0.25 @@ -175,7 +213,6 @@ class InsecureServerInsecureClient(unittest.TestCase): REQUEST = b'in death a member of project mayhem has a name' RESPONSE = b'his name is robert paulson' METHOD = b'twinkies' - HOST = b'hostess' cygrpc_deadline = cygrpc.Timespec(DEADLINE) @@ -188,7 +225,8 @@ class InsecureServerInsecureClient(unittest.TestCase): client_call_tag = object() client_call = self.client_channel.create_call( - None, 0, self.client_completion_queue, METHOD, HOST, cygrpc_deadline) + None, 0, self.client_completion_queue, METHOD, self.host_argument, + cygrpc_deadline) client_initial_metadata = cygrpc.Metadata([ cygrpc.Metadatum(CLIENT_METADATA_ASCII_KEY, CLIENT_METADATA_ASCII_VALUE), @@ -216,7 +254,8 @@ class InsecureServerInsecureClient(unittest.TestCase): test_common.metadata_transmitted(client_initial_metadata, request_event.request_metadata)) self.assertEqual(METHOD, request_event.request_call_details.method) - self.assertEqual(HOST, request_event.request_call_details.host) + self.assertEqual(self.expected_host, + request_event.request_call_details.host) self.assertLess( abs(DEADLINE - float(request_event.request_call_details.deadline)), DEADLINE_TOLERANCE) @@ -292,172 +331,101 @@ class InsecureServerInsecureClient(unittest.TestCase): del client_call del server_call - -class SecureServerSecureClient(unittest.TestCase): - - def setUp(self): - server_credentials = cygrpc.server_credentials_ssl( - None, [cygrpc.SslPemKeyCertPair(resources.private_key(), - resources.certificate_chain())], False) - channel_credentials = cygrpc.channel_credentials_ssl( - resources.test_root_certificates(), None) - self.server_completion_queue = cygrpc.CompletionQueue() - self.server = cygrpc.Server() - self.server.register_completion_queue(self.server_completion_queue) - self.port = self.server.add_http2_port('[::]:0', server_credentials) - self.server.start() - self.client_completion_queue = cygrpc.CompletionQueue() - client_channel_arguments = cygrpc.ChannelArgs([ - cygrpc.ChannelArg(cygrpc.ChannelArgKey.ssl_target_name_override, - _SSL_HOST_OVERRIDE)]) - self.client_channel = cygrpc.Channel( - 'localhost:{}'.format(self.port), client_channel_arguments, - channel_credentials) - - def tearDown(self): - del self.server - del self.client_completion_queue - del self.server_completion_queue - - def testEcho(self): + def test6522(self): DEADLINE = time.time()+5 DEADLINE_TOLERANCE = 0.25 - CLIENT_METADATA_ASCII_KEY = b'key' - CLIENT_METADATA_ASCII_VALUE = b'val' - CLIENT_METADATA_BIN_KEY = b'key-bin' - CLIENT_METADATA_BIN_VALUE = b'\0'*1000 - SERVER_INITIAL_METADATA_KEY = b'init_me_me_me' - SERVER_INITIAL_METADATA_VALUE = b'whodawha?' - SERVER_TRAILING_METADATA_KEY = b'california_is_in_a_drought' - SERVER_TRAILING_METADATA_VALUE = b'zomg it is' - SERVER_STATUS_CODE = cygrpc.StatusCode.ok - SERVER_STATUS_DETAILS = b'our work is never over' - REQUEST = b'in death a member of project mayhem has a name' - RESPONSE = b'his name is robert paulson' - METHOD = b'/twinkies' - HOST = None # Default host + METHOD = b'twinkies' cygrpc_deadline = cygrpc.Timespec(DEADLINE) + empty_metadata = cygrpc.Metadata([]) server_request_tag = object() - request_call_result = self.server.request_call( + self.server.request_call( self.server_completion_queue, self.server_completion_queue, server_request_tag) + client_call = self.client_channel.create_call( + None, 0, self.client_completion_queue, METHOD, self.host_argument, + cygrpc_deadline) - self.assertEqual(cygrpc.CallError.ok, request_call_result) - - plugin = cygrpc.CredentialsMetadataPlugin(_metadata_plugin_callback, '') - call_credentials = cygrpc.call_credentials_metadata_plugin(plugin) + # Prologue + def perform_client_operations(operations, description): + return self._perform_operations( + operations, client_call, + self.client_completion_queue, cygrpc_deadline, description) - client_call_tag = object() - client_call = self.client_channel.create_call( - None, 0, self.client_completion_queue, METHOD, HOST, cygrpc_deadline) - client_call.set_credentials(call_credentials) - client_initial_metadata = cygrpc.Metadata([ - cygrpc.Metadatum(CLIENT_METADATA_ASCII_KEY, - CLIENT_METADATA_ASCII_VALUE), - cygrpc.Metadatum(CLIENT_METADATA_BIN_KEY, CLIENT_METADATA_BIN_VALUE)]) - client_start_batch_result = client_call.start_batch(cygrpc.Operations([ - cygrpc.operation_send_initial_metadata(client_initial_metadata, - _EMPTY_FLAGS), - cygrpc.operation_send_message(REQUEST, _EMPTY_FLAGS), - cygrpc.operation_send_close_from_client(_EMPTY_FLAGS), - cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS), - cygrpc.operation_receive_message(_EMPTY_FLAGS), - cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS) - ]), client_call_tag) - self.assertEqual(cygrpc.CallError.ok, client_start_batch_result) - client_event_future = test_utilities.CompletionQueuePollFuture( - self.client_completion_queue, cygrpc_deadline) + client_event_future = perform_client_operations([ + cygrpc.operation_send_initial_metadata(empty_metadata, + _EMPTY_FLAGS), + cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS), + ], "Client prologue") request_event = self.server_completion_queue.poll(cygrpc_deadline) - self.assertEqual(cygrpc.CompletionType.operation_complete, - request_event.type) - self.assertIsInstance(request_event.operation_call, cygrpc.Call) - self.assertIs(server_request_tag, request_event.tag) - self.assertEqual(0, len(request_event.batch_operations)) - client_metadata_with_credentials = list(client_initial_metadata) + [ - (_CALL_CREDENTIALS_METADATA_KEY, _CALL_CREDENTIALS_METADATA_VALUE)] - self.assertTrue( - test_common.metadata_transmitted(client_metadata_with_credentials, - request_event.request_metadata)) - self.assertEqual(METHOD, request_event.request_call_details.method) - self.assertEqual(_SSL_HOST_OVERRIDE, - request_event.request_call_details.host) - self.assertLess( - abs(DEADLINE - float(request_event.request_call_details.deadline)), - DEADLINE_TOLERANCE) - - server_call_tag = object() server_call = request_event.operation_call - server_initial_metadata = cygrpc.Metadata([ - cygrpc.Metadatum(SERVER_INITIAL_METADATA_KEY, - SERVER_INITIAL_METADATA_VALUE)]) - server_trailing_metadata = cygrpc.Metadata([ - cygrpc.Metadatum(SERVER_TRAILING_METADATA_KEY, - SERVER_TRAILING_METADATA_VALUE)]) - server_start_batch_result = server_call.start_batch([ - cygrpc.operation_send_initial_metadata(server_initial_metadata, - _EMPTY_FLAGS), - cygrpc.operation_receive_message(_EMPTY_FLAGS), - cygrpc.operation_send_message(RESPONSE, _EMPTY_FLAGS), - cygrpc.operation_receive_close_on_server(_EMPTY_FLAGS), - cygrpc.operation_send_status_from_server( - server_trailing_metadata, SERVER_STATUS_CODE, - SERVER_STATUS_DETAILS, _EMPTY_FLAGS) - ], server_call_tag) - self.assertEqual(cygrpc.CallError.ok, server_start_batch_result) - client_event = client_event_future.result() - server_event = self.server_completion_queue.poll(cygrpc_deadline) + def perform_server_operations(operations, description): + return self._perform_operations( + operations, server_call, + self.server_completion_queue, cygrpc_deadline, description) - self.assertEqual(6, len(client_event.batch_operations)) - found_client_op_types = set() - for client_result in client_event.batch_operations: - # we expect each op type to be unique - self.assertNotIn(client_result.type, found_client_op_types) - found_client_op_types.add(client_result.type) - if client_result.type == cygrpc.OperationType.receive_initial_metadata: - self.assertTrue( - test_common.metadata_transmitted(server_initial_metadata, - client_result.received_metadata)) - elif client_result.type == cygrpc.OperationType.receive_message: - self.assertEqual(RESPONSE, client_result.received_message.bytes()) - elif client_result.type == cygrpc.OperationType.receive_status_on_client: - self.assertTrue( - test_common.metadata_transmitted(server_trailing_metadata, - client_result.received_metadata)) - self.assertEqual(SERVER_STATUS_DETAILS, - client_result.received_status_details) - self.assertEqual(SERVER_STATUS_CODE, client_result.received_status_code) - self.assertEqual(set([ - cygrpc.OperationType.send_initial_metadata, - cygrpc.OperationType.send_message, - cygrpc.OperationType.send_close_from_client, - cygrpc.OperationType.receive_initial_metadata, - cygrpc.OperationType.receive_message, - cygrpc.OperationType.receive_status_on_client - ]), found_client_op_types) + server_event_future = perform_server_operations([ + cygrpc.operation_send_initial_metadata(empty_metadata, + _EMPTY_FLAGS), + ], "Server prologue") - self.assertEqual(5, len(server_event.batch_operations)) - found_server_op_types = set() - for server_result in server_event.batch_operations: - self.assertNotIn(client_result.type, found_server_op_types) - found_server_op_types.add(server_result.type) - if server_result.type == cygrpc.OperationType.receive_message: - self.assertEqual(REQUEST, server_result.received_message.bytes()) - elif server_result.type == cygrpc.OperationType.receive_close_on_server: - self.assertFalse(server_result.received_cancelled) - self.assertEqual(set([ - cygrpc.OperationType.send_initial_metadata, - cygrpc.OperationType.receive_message, - cygrpc.OperationType.send_message, - cygrpc.OperationType.receive_close_on_server, - cygrpc.OperationType.send_status_from_server - ]), found_server_op_types) + client_event_future.result() # force completion + server_event_future.result() - del client_call - del server_call + # Messaging + for _ in range(10): + client_event_future = perform_client_operations([ + cygrpc.operation_send_message(b'', _EMPTY_FLAGS), + cygrpc.operation_receive_message(_EMPTY_FLAGS), + ], "Client message") + server_event_future = perform_server_operations([ + cygrpc.operation_send_message(b'', _EMPTY_FLAGS), + cygrpc.operation_receive_message(_EMPTY_FLAGS), + ], "Server receive") + + client_event_future.result() # force completion + server_event_future.result() + + # Epilogue + client_event_future = perform_client_operations([ + cygrpc.operation_send_close_from_client(_EMPTY_FLAGS), + cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS) + ], "Client epilogue") + + server_event_future = perform_server_operations([ + cygrpc.operation_receive_close_on_server(_EMPTY_FLAGS), + cygrpc.operation_send_status_from_server( + empty_metadata, cygrpc.StatusCode.ok, b'', _EMPTY_FLAGS) + ], "Server epilogue") + + client_event_future.result() # force completion + server_event_future.result() + + +class InsecureServerInsecureClient(unittest.TestCase, ServerClientMixin): + + def setUp(self): + self.setUpMixin(None, None, None) + + def tearDown(self): + self.tearDownMixin() + + +class SecureServerSecureClient(unittest.TestCase, ServerClientMixin): + + def setUp(self): + server_credentials = cygrpc.server_credentials_ssl( + None, [cygrpc.SslPemKeyCertPair(resources.private_key(), + resources.certificate_chain())], False) + client_credentials = cygrpc.channel_credentials_ssl( + resources.test_root_certificates(), None) + self.setUpMixin(server_credentials, client_credentials, _SSL_HOST_OVERRIDE) + + def tearDown(self): + self.tearDownMixin() if __name__ == '__main__': diff --git a/src/python/grpcio/tests/unit/_cython/test_utilities.py b/src/python/grpcio/tests/unit/_cython/test_utilities.py index 6a09739643..6280ce74c4 100644 --- a/src/python/grpcio/tests/unit/_cython/test_utilities.py +++ b/src/python/grpcio/tests/unit/_cython/test_utilities.py @@ -32,15 +32,35 @@ import threading from grpc._cython import cygrpc -class CompletionQueuePollFuture: +class SimpleFuture(object): + """A simple future mechanism.""" - def __init__(self, completion_queue, deadline): - def poller_function(): - self._event_result = completion_queue.poll(deadline) - self._event_result = None - self._thread = threading.Thread(target=poller_function) + def __init__(self, function, *args, **kwargs): + def wrapped_function(): + try: + self._result = function(*args, **kwargs) + except Exception as error: + self._error = error + self._result = None + self._error = None + self._thread = threading.Thread(target=wrapped_function) self._thread.start() def result(self): + """The resulting value of this future. + + Re-raises any exceptions. + """ self._thread.join() - return self._event_result + if self._error: + # TODO(atash): re-raise exceptions in a way that preserves tracebacks + raise self._error + return self._result + + +class CompletionQueuePollFuture(SimpleFuture): + + def __init__(self, completion_queue, deadline): + super(CompletionQueuePollFuture, self).__init__( + lambda: completion_queue.poll(deadline)) + diff --git a/src/python/grpcio/tests/unit/_empty_message_test.py b/src/python/grpcio/tests/unit/_empty_message_test.py new file mode 100644 index 0000000000..f324f6216b --- /dev/null +++ b/src/python/grpcio/tests/unit/_empty_message_test.py @@ -0,0 +1,137 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +import unittest + +import grpc +from grpc.framework.foundation import logging_pool + +from tests.unit.framework.common import test_constants + +_REQUEST = b'' +_RESPONSE = b'' + +_UNARY_UNARY = b'/test/UnaryUnary' +_UNARY_STREAM = b'/test/UnaryStream' +_STREAM_UNARY = b'/test/StreamUnary' +_STREAM_STREAM = b'/test/StreamStream' + + +def handle_unary_unary(request, servicer_context): + return _RESPONSE + + +def handle_unary_stream(request, servicer_context): + for _ in range(test_constants.STREAM_LENGTH): + yield _RESPONSE + + +def handle_stream_unary(request_iterator, servicer_context): + for request in request_iterator: + pass + return _RESPONSE + + +def handle_stream_stream(request_iterator, servicer_context): + for request in request_iterator: + yield _RESPONSE + + +class _MethodHandler(grpc.RpcMethodHandler): + + def __init__(self, request_streaming, response_streaming): + self.request_streaming = request_streaming + self.response_streaming = response_streaming + self.request_deserializer = None + self.response_serializer = None + self.unary_unary = None + self.unary_stream = None + self.stream_unary = None + self.stream_stream = None + if self.request_streaming and self.response_streaming: + self.stream_stream = handle_stream_stream + elif self.request_streaming: + self.stream_unary = handle_stream_unary + elif self.response_streaming: + self.unary_stream = handle_unary_stream + else: + self.unary_unary = handle_unary_unary + + +class _GenericHandler(grpc.GenericRpcHandler): + + def service(self, handler_call_details): + if handler_call_details.method == _UNARY_UNARY: + return _MethodHandler(False, False) + elif handler_call_details.method == _UNARY_STREAM: + return _MethodHandler(False, True) + elif handler_call_details.method == _STREAM_UNARY: + return _MethodHandler(True, False) + elif handler_call_details.method == _STREAM_STREAM: + return _MethodHandler(True, True) + else: + return None + + +class EmptyMessageTest(unittest.TestCase): + + def setUp(self): + self._server_pool = logging_pool.pool(test_constants.THREAD_CONCURRENCY) + self._server = grpc.server((_GenericHandler(),), self._server_pool) + port = self._server.add_insecure_port('[::]:0') + self._server.start() + self._channel = grpc.insecure_channel('localhost:%d' % port) + + def tearDown(self): + self._server.stop(0) + + def testUnaryUnary(self): + response = self._channel.unary_unary(_UNARY_UNARY)(_REQUEST) + self.assertEqual(_RESPONSE, response) + + def testUnaryStream(self): + response_iterator = self._channel.unary_stream(_UNARY_STREAM)(_REQUEST) + self.assertSequenceEqual( + [_RESPONSE] * test_constants.STREAM_LENGTH, list(response_iterator)) + + def testStreamUnary(self): + response = self._channel.stream_unary(_STREAM_UNARY)( + [_REQUEST] * test_constants.STREAM_LENGTH) + self.assertEqual(_RESPONSE, response) + + def testStreamStream(self): + response_iterator = self._channel.stream_stream(_STREAM_STREAM)( + [_REQUEST] * test_constants.STREAM_LENGTH) + self.assertSequenceEqual( + [_RESPONSE] * test_constants.STREAM_LENGTH, list(response_iterator)) + + +if __name__ == '__main__': + unittest.main(verbosity=2) + diff --git a/src/python/grpcio/grpc/_adapter/_implementations.py b/src/python/grpcio/tests/unit/_from_grpc_import_star.py index b85f228bf6..78d2fb7dc5 100644 --- a/src/python/grpcio/grpc/_adapter/_implementations.py +++ b/src/python/grpcio/tests/unit/_from_grpc_import_star.py @@ -1,4 +1,4 @@ -# Copyright 2015, Google Inc. +# Copyright 2016, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without @@ -27,22 +27,12 @@ # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -import collections +_BEFORE_IMPORT = tuple(globals()) -from grpc.beta import interfaces +from grpc import * -class AuthMetadataContext(collections.namedtuple( - 'AuthMetadataContext', [ - 'service_url', - 'method_name' - ]), interfaces.GRPCAuthMetadataContext): - pass +_AFTER_IMPORT = tuple(globals()) - -class AuthMetadataPluginCallback(interfaces.GRPCAuthMetadataContext): - - def __init__(self, callback): - self._callback = callback - - def __call__(self, metadata, error): - self._callback(metadata, error) +GRPC_ELEMENTS = tuple( + element for element in _AFTER_IMPORT + if element not in _BEFORE_IMPORT and element != '_BEFORE_IMPORT') diff --git a/src/python/grpcio/tests/unit/_links/_transmission_test.py b/src/python/grpcio/tests/unit/_links/_transmission_test.py index 888684d197..1f6edd18ca 100644 --- a/src/python/grpcio/tests/unit/_links/_transmission_test.py +++ b/src/python/grpcio/tests/unit/_links/_transmission_test.py @@ -153,7 +153,7 @@ class RoundTripTest(unittest.TestCase): invocation_mate.tickets()[-1].termination, links.Ticket.Termination.COMPLETION) self.assertIs(invocation_mate.tickets()[-1].code, test_code) - self.assertEqual(invocation_mate.tickets()[-1].message, test_message) + self.assertEqual(invocation_mate.tickets()[-1].message, test_message.encode()) def _perform_scenario_test(self, scenario): test_operation_id = object() diff --git a/src/python/grpcio/tests/unit/_metadata_test.py b/src/python/grpcio/tests/unit/_metadata_test.py new file mode 100644 index 0000000000..77b3901261 --- /dev/null +++ b/src/python/grpcio/tests/unit/_metadata_test.py @@ -0,0 +1,216 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +"""Tests server and client side metadata API.""" + +import unittest +import weakref + +import grpc +from grpc import _grpcio_metadata +from grpc.framework.foundation import logging_pool + +from tests.unit import test_common +from tests.unit.framework.common import test_constants + +_CHANNEL_ARGS = (('grpc.primary_user_agent', 'primary-agent'), + ('grpc.secondary_user_agent', 'secondary-agent')) + +_REQUEST = b'\x00\x00\x00' +_RESPONSE = b'\x00\x00\x00' + +_UNARY_UNARY = b'/test/UnaryUnary' +_UNARY_STREAM = b'/test/UnaryStream' +_STREAM_UNARY = b'/test/StreamUnary' +_STREAM_STREAM = b'/test/StreamStream' + +_USER_AGENT = 'Python-gRPC-{}'.format(_grpcio_metadata.__version__) + +_CLIENT_METADATA = ( + (b'client-md-key', b'client-md-key'), + (b'client-md-key-bin', b'\x00\x01') +) + +_SERVER_INITIAL_METADATA = ( + (b'server-initial-md-key', b'server-initial-md-value'), + (b'server-initial-md-key-bin', b'\x00\x02') +) + +_SERVER_TRAILING_METADATA = ( + (b'server-trailing-md-key', b'server-trailing-md-value'), + (b'server-trailing-md-key-bin', b'\x00\x03') +) + + +def user_agent(metadata): + for key, val in metadata: + if key == b'user-agent': + return val.decode('ascii') + raise KeyError('No user agent!') + + +def validate_client_metadata(test, servicer_context): + test.assertTrue(test_common.metadata_transmitted( + _CLIENT_METADATA, servicer_context.invocation_metadata())) + test.assertTrue(user_agent(servicer_context.invocation_metadata()) + .startswith('primary-agent ' + _USER_AGENT)) + test.assertTrue(user_agent(servicer_context.invocation_metadata()) + .endswith('secondary-agent')) + + +def handle_unary_unary(test, request, servicer_context): + validate_client_metadata(test, servicer_context) + servicer_context.send_initial_metadata(_SERVER_INITIAL_METADATA) + servicer_context.set_trailing_metadata(_SERVER_TRAILING_METADATA) + return _RESPONSE + + +def handle_unary_stream(test, request, servicer_context): + validate_client_metadata(test, servicer_context) + servicer_context.send_initial_metadata(_SERVER_INITIAL_METADATA) + servicer_context.set_trailing_metadata(_SERVER_TRAILING_METADATA) + for _ in range(test_constants.STREAM_LENGTH): + yield _RESPONSE + + +def handle_stream_unary(test, request_iterator, servicer_context): + validate_client_metadata(test, servicer_context) + servicer_context.send_initial_metadata(_SERVER_INITIAL_METADATA) + servicer_context.set_trailing_metadata(_SERVER_TRAILING_METADATA) + # TODO(issue:#6891) We should be able to remove this loop + for request in request_iterator: + pass + return _RESPONSE + + +def handle_stream_stream(test, request_iterator, servicer_context): + validate_client_metadata(test, servicer_context) + servicer_context.send_initial_metadata(_SERVER_INITIAL_METADATA) + servicer_context.set_trailing_metadata(_SERVER_TRAILING_METADATA) + # TODO(issue:#6891) We should be able to remove this loop, + # and replace with return; yield + for request in request_iterator: + yield _RESPONSE + + +class _MethodHandler(grpc.RpcMethodHandler): + + def __init__(self, test, request_streaming, response_streaming): + self.request_streaming = request_streaming + self.response_streaming = response_streaming + self.request_deserializer = None + self.response_serializer = None + self.unary_unary = None + self.unary_stream = None + self.stream_unary = None + self.stream_stream = None + if self.request_streaming and self.response_streaming: + self.stream_stream = lambda x, y: handle_stream_stream(test, x, y) + elif self.request_streaming: + self.stream_unary = lambda x, y: handle_stream_unary(test, x, y) + elif self.response_streaming: + self.unary_stream = lambda x, y: handle_unary_stream(test, x, y) + else: + self.unary_unary = lambda x, y: handle_unary_unary(test, x, y) + + +class _GenericHandler(grpc.GenericRpcHandler): + + def __init__(self, test): + self._test = test + + def service(self, handler_call_details): + if handler_call_details.method == _UNARY_UNARY: + return _MethodHandler(self._test, False, False) + elif handler_call_details.method == _UNARY_STREAM: + return _MethodHandler(self._test, False, True) + elif handler_call_details.method == _STREAM_UNARY: + return _MethodHandler(self._test, True, False) + elif handler_call_details.method == _STREAM_STREAM: + return _MethodHandler(self._test, True, True) + else: + return None + + +class MetadataTest(unittest.TestCase): + + def setUp(self): + self._server_pool = logging_pool.pool(test_constants.THREAD_CONCURRENCY) + self._server = grpc.server((_GenericHandler(weakref.proxy(self)),), + self._server_pool) + port = self._server.add_insecure_port('[::]:0') + self._server.start() + self._channel = grpc.insecure_channel('localhost:%d' % port, + options=_CHANNEL_ARGS) + + def tearDown(self): + self._server.stop(0) + + def testUnaryUnary(self): + multi_callable = self._channel.unary_unary(_UNARY_UNARY) + unused_response, call = multi_callable( + _REQUEST, metadata=_CLIENT_METADATA, with_call=True) + self.assertTrue(test_common.metadata_transmitted( + _SERVER_INITIAL_METADATA, call.initial_metadata())) + self.assertTrue(test_common.metadata_transmitted( + _SERVER_TRAILING_METADATA, call.trailing_metadata())) + + def testUnaryStream(self): + multi_callable = self._channel.unary_stream(_UNARY_STREAM) + call = multi_callable(_REQUEST, metadata=_CLIENT_METADATA) + self.assertTrue(test_common.metadata_transmitted( + _SERVER_INITIAL_METADATA, call.initial_metadata())) + for _ in call: + pass + self.assertTrue(test_common.metadata_transmitted( + _SERVER_TRAILING_METADATA, call.trailing_metadata())) + + def testStreamUnary(self): + multi_callable = self._channel.stream_unary(_STREAM_UNARY) + unused_response, call = multi_callable( + [_REQUEST] * test_constants.STREAM_LENGTH, + metadata=_CLIENT_METADATA, with_call=True) + self.assertTrue(test_common.metadata_transmitted( + _SERVER_INITIAL_METADATA, call.initial_metadata())) + self.assertTrue(test_common.metadata_transmitted( + _SERVER_TRAILING_METADATA, call.trailing_metadata())) + + def testStreamStream(self): + multi_callable = self._channel.stream_stream(_STREAM_STREAM) + call = multi_callable([_REQUEST] * test_constants.STREAM_LENGTH, + metadata=_CLIENT_METADATA) + self.assertTrue(test_common.metadata_transmitted( + _SERVER_INITIAL_METADATA, call.initial_metadata())) + for _ in call: + pass + self.assertTrue(test_common.metadata_transmitted( + _SERVER_TRAILING_METADATA, call.trailing_metadata())) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/_rpc_test.py b/src/python/grpcio/tests/unit/_rpc_test.py new file mode 100644 index 0000000000..8407593c86 --- /dev/null +++ b/src/python/grpcio/tests/unit/_rpc_test.py @@ -0,0 +1,768 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Test of gRPC Python's application-layer API.""" + +import itertools +import threading +import unittest +from concurrent import futures + +import grpc +from grpc.framework.foundation import logging_pool + +from tests.unit.framework.common import test_constants +from tests.unit.framework.common import test_control + +_SERIALIZE_REQUEST = lambda bytestring: bytestring * 2 +_DESERIALIZE_REQUEST = lambda bytestring: bytestring[len(bytestring) // 2:] +_SERIALIZE_RESPONSE = lambda bytestring: bytestring * 3 +_DESERIALIZE_RESPONSE = lambda bytestring: bytestring[:len(bytestring) // 3] + +_UNARY_UNARY = b'/test/UnaryUnary' +_UNARY_STREAM = b'/test/UnaryStream' +_STREAM_UNARY = b'/test/StreamUnary' +_STREAM_STREAM = b'/test/StreamStream' + + +class _Callback(object): + + def __init__(self): + self._condition = threading.Condition() + self._value = None + self._called = False + + def __call__(self, value): + with self._condition: + self._value = value + self._called = True + self._condition.notify_all() + + def value(self): + with self._condition: + while not self._called: + self._condition.wait() + return self._value + + +class _Handler(object): + + def __init__(self, control): + self._control = control + + def handle_unary_unary(self, request, servicer_context): + self._control.control() + if servicer_context is not None: + servicer_context.set_trailing_metadata(((b'testkey', b'testvalue',),)) + return request + + def handle_unary_stream(self, request, servicer_context): + for _ in range(test_constants.STREAM_LENGTH): + self._control.control() + yield request + self._control.control() + if servicer_context is not None: + servicer_context.set_trailing_metadata(((b'testkey', b'testvalue',),)) + + def handle_stream_unary(self, request_iterator, servicer_context): + if servicer_context is not None: + servicer_context.invocation_metadata() + self._control.control() + response_elements = [] + for request in request_iterator: + self._control.control() + response_elements.append(request) + self._control.control() + if servicer_context is not None: + servicer_context.set_trailing_metadata(((b'testkey', b'testvalue',),)) + return b''.join(response_elements) + + def handle_stream_stream(self, request_iterator, servicer_context): + self._control.control() + if servicer_context is not None: + servicer_context.set_trailing_metadata(((b'testkey', b'testvalue',),)) + for request in request_iterator: + self._control.control() + yield request + self._control.control() + + +class _MethodHandler(grpc.RpcMethodHandler): + + def __init__( + self, request_streaming, response_streaming, request_deserializer, + response_serializer, unary_unary, unary_stream, stream_unary, + stream_stream): + self.request_streaming = request_streaming + self.response_streaming = response_streaming + self.request_deserializer = request_deserializer + self.response_serializer = response_serializer + self.unary_unary = unary_unary + self.unary_stream = unary_stream + self.stream_unary = stream_unary + self.stream_stream = stream_stream + + +class _GenericHandler(grpc.GenericRpcHandler): + + def __init__(self, handler): + self._handler = handler + + def service(self, handler_call_details): + if handler_call_details.method == _UNARY_UNARY: + return _MethodHandler( + False, False, None, None, self._handler.handle_unary_unary, None, + None, None) + elif handler_call_details.method == _UNARY_STREAM: + return _MethodHandler( + False, True, _DESERIALIZE_REQUEST, _SERIALIZE_RESPONSE, None, + self._handler.handle_unary_stream, None, None) + elif handler_call_details.method == _STREAM_UNARY: + return _MethodHandler( + True, False, _DESERIALIZE_REQUEST, _SERIALIZE_RESPONSE, None, None, + self._handler.handle_stream_unary, None) + elif handler_call_details.method == _STREAM_STREAM: + return _MethodHandler( + True, True, None, None, None, None, None, + self._handler.handle_stream_stream) + else: + return None + + +def _unary_unary_multi_callable(channel): + return channel.unary_unary(_UNARY_UNARY) + + +def _unary_stream_multi_callable(channel): + return channel.unary_stream( + _UNARY_STREAM, + request_serializer=_SERIALIZE_REQUEST, + response_deserializer=_DESERIALIZE_RESPONSE) + + +def _stream_unary_multi_callable(channel): + return channel.stream_unary( + _STREAM_UNARY, + request_serializer=_SERIALIZE_REQUEST, + response_deserializer=_DESERIALIZE_RESPONSE) + + +def _stream_stream_multi_callable(channel): + return channel.stream_stream(_STREAM_STREAM) + + +class RPCTest(unittest.TestCase): + + def setUp(self): + self._control = test_control.PauseFailControl() + self._handler = _Handler(self._control) + self._server_pool = logging_pool.pool(test_constants.THREAD_CONCURRENCY) + + self._server = grpc.server((), self._server_pool) + port = self._server.add_insecure_port(b'[::]:0') + self._server.add_generic_rpc_handlers((_GenericHandler(self._handler),)) + self._server.start() + + self._channel = grpc.insecure_channel('localhost:%d' % port) + + def testUnrecognizedMethod(self): + request = b'abc' + + with self.assertRaises(grpc.RpcError) as exception_context: + self._channel.unary_unary(b'NoSuchMethod')(request) + + self.assertEqual( + grpc.StatusCode.UNIMPLEMENTED, exception_context.exception.code()) + + def testSuccessfulUnaryRequestBlockingUnaryResponse(self): + request = b'\x07\x08' + expected_response = self._handler.handle_unary_unary(request, None) + + multi_callable = _unary_unary_multi_callable(self._channel) + response = multi_callable( + request, metadata=( + (b'test', b'SuccessfulUnaryRequestBlockingUnaryResponse'),)) + + self.assertEqual(expected_response, response) + + def testSuccessfulUnaryRequestBlockingUnaryResponseWithCall(self): + request = b'\x07\x08' + expected_response = self._handler.handle_unary_unary(request, None) + + multi_callable = _unary_unary_multi_callable(self._channel) + response, call = multi_callable( + request, metadata=( + (b'test', b'SuccessfulUnaryRequestBlockingUnaryResponseWithCall'),), + with_call=True) + + self.assertEqual(expected_response, response) + self.assertIs(grpc.StatusCode.OK, call.code()) + + def testSuccessfulUnaryRequestFutureUnaryResponse(self): + request = b'\x07\x08' + expected_response = self._handler.handle_unary_unary(request, None) + + multi_callable = _unary_unary_multi_callable(self._channel) + response_future = multi_callable.future( + request, metadata=( + (b'test', b'SuccessfulUnaryRequestFutureUnaryResponse'),)) + response = response_future.result() + + self.assertEqual(expected_response, response) + + def testSuccessfulUnaryRequestStreamResponse(self): + request = b'\x37\x58' + expected_responses = tuple(self._handler.handle_unary_stream(request, None)) + + multi_callable = _unary_stream_multi_callable(self._channel) + response_iterator = multi_callable( + request, + metadata=((b'test', b'SuccessfulUnaryRequestStreamResponse'),)) + responses = tuple(response_iterator) + + self.assertSequenceEqual(expected_responses, responses) + + def testSuccessfulStreamRequestBlockingUnaryResponse(self): + requests = tuple(b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)) + expected_response = self._handler.handle_stream_unary(iter(requests), None) + request_iterator = iter(requests) + + multi_callable = _stream_unary_multi_callable(self._channel) + response = multi_callable( + request_iterator, + metadata=((b'test', b'SuccessfulStreamRequestBlockingUnaryResponse'),)) + + self.assertEqual(expected_response, response) + + def testSuccessfulStreamRequestBlockingUnaryResponseWithCall(self): + requests = tuple(b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)) + expected_response = self._handler.handle_stream_unary(iter(requests), None) + request_iterator = iter(requests) + + multi_callable = _stream_unary_multi_callable(self._channel) + response, call = multi_callable( + request_iterator, + metadata=( + (b'test', b'SuccessfulStreamRequestBlockingUnaryResponseWithCall'), + ), with_call=True) + + self.assertEqual(expected_response, response) + self.assertIs(grpc.StatusCode.OK, call.code()) + + def testSuccessfulStreamRequestFutureUnaryResponse(self): + requests = tuple(b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)) + expected_response = self._handler.handle_stream_unary(iter(requests), None) + request_iterator = iter(requests) + + multi_callable = _stream_unary_multi_callable(self._channel) + response_future = multi_callable.future( + request_iterator, + metadata=( + (b'test', b'SuccessfulStreamRequestFutureUnaryResponse'),)) + response = response_future.result() + + self.assertEqual(expected_response, response) + + def testSuccessfulStreamRequestStreamResponse(self): + requests = tuple(b'\x77\x58' for _ in range(test_constants.STREAM_LENGTH)) + expected_responses = tuple( + self._handler.handle_stream_stream(iter(requests), None)) + request_iterator = iter(requests) + + multi_callable = _stream_stream_multi_callable(self._channel) + response_iterator = multi_callable( + request_iterator, + metadata=((b'test', b'SuccessfulStreamRequestStreamResponse'),)) + responses = tuple(response_iterator) + + self.assertSequenceEqual(expected_responses, responses) + + def testSequentialInvocations(self): + first_request = b'\x07\x08' + second_request = b'\x0809' + expected_first_response = self._handler.handle_unary_unary( + first_request, None) + expected_second_response = self._handler.handle_unary_unary( + second_request, None) + + multi_callable = _unary_unary_multi_callable(self._channel) + first_response = multi_callable( + first_request, metadata=((b'test', b'SequentialInvocations'),)) + second_response = multi_callable( + second_request, metadata=((b'test', b'SequentialInvocations'),)) + + self.assertEqual(expected_first_response, first_response) + self.assertEqual(expected_second_response, second_response) + + def testConcurrentBlockingInvocations(self): + pool = logging_pool.pool(test_constants.THREAD_CONCURRENCY) + requests = tuple(b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)) + expected_response = self._handler.handle_stream_unary(iter(requests), None) + expected_responses = [expected_response] * test_constants.THREAD_CONCURRENCY + response_futures = [None] * test_constants.THREAD_CONCURRENCY + + multi_callable = _stream_unary_multi_callable(self._channel) + for index in range(test_constants.THREAD_CONCURRENCY): + request_iterator = iter(requests) + response_future = pool.submit( + multi_callable, request_iterator, + metadata=((b'test', b'ConcurrentBlockingInvocations'),)) + response_futures[index] = response_future + responses = tuple( + response_future.result() for response_future in response_futures) + + pool.shutdown(wait=True) + self.assertSequenceEqual(expected_responses, responses) + + def testConcurrentFutureInvocations(self): + requests = tuple(b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)) + expected_response = self._handler.handle_stream_unary(iter(requests), None) + expected_responses = [expected_response] * test_constants.THREAD_CONCURRENCY + response_futures = [None] * test_constants.THREAD_CONCURRENCY + + multi_callable = _stream_unary_multi_callable(self._channel) + for index in range(test_constants.THREAD_CONCURRENCY): + request_iterator = iter(requests) + response_future = multi_callable.future( + request_iterator, + metadata=((b'test', b'ConcurrentFutureInvocations'),)) + response_futures[index] = response_future + responses = tuple( + response_future.result() for response_future in response_futures) + + self.assertSequenceEqual(expected_responses, responses) + + def testWaitingForSomeButNotAllConcurrentFutureInvocations(self): + pool = logging_pool.pool(test_constants.THREAD_CONCURRENCY) + request = b'\x67\x68' + expected_response = self._handler.handle_unary_unary(request, None) + response_futures = [None] * test_constants.THREAD_CONCURRENCY + lock = threading.Lock() + test_is_running_cell = [True] + def wrap_future(future): + def wrap(): + try: + return future.result() + except grpc.RpcError: + with lock: + if test_is_running_cell[0]: + raise + return None + return wrap + + multi_callable = _unary_unary_multi_callable(self._channel) + for index in range(test_constants.THREAD_CONCURRENCY): + inner_response_future = multi_callable.future( + request, + metadata=( + (b'test', + b'WaitingForSomeButNotAllConcurrentFutureInvocations'),)) + outer_response_future = pool.submit(wrap_future(inner_response_future)) + response_futures[index] = outer_response_future + + some_completed_response_futures_iterator = itertools.islice( + futures.as_completed(response_futures), + test_constants.THREAD_CONCURRENCY // 2) + for response_future in some_completed_response_futures_iterator: + self.assertEqual(expected_response, response_future.result()) + with lock: + test_is_running_cell[0] = False + + def testConsumingOneStreamResponseUnaryRequest(self): + request = b'\x57\x38' + + multi_callable = _unary_stream_multi_callable(self._channel) + response_iterator = multi_callable( + request, + metadata=( + (b'test', b'ConsumingOneStreamResponseUnaryRequest'),)) + next(response_iterator) + + def testConsumingSomeButNotAllStreamResponsesUnaryRequest(self): + request = b'\x57\x38' + + multi_callable = _unary_stream_multi_callable(self._channel) + response_iterator = multi_callable( + request, + metadata=( + (b'test', b'ConsumingSomeButNotAllStreamResponsesUnaryRequest'),)) + for _ in range(test_constants.STREAM_LENGTH // 2): + next(response_iterator) + + def testConsumingSomeButNotAllStreamResponsesStreamRequest(self): + requests = tuple(b'\x67\x88' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + + multi_callable = _stream_stream_multi_callable(self._channel) + response_iterator = multi_callable( + request_iterator, + metadata=( + (b'test', b'ConsumingSomeButNotAllStreamResponsesStreamRequest'),)) + for _ in range(test_constants.STREAM_LENGTH // 2): + next(response_iterator) + + def testConsumingTooManyStreamResponsesStreamRequest(self): + requests = tuple(b'\x67\x88' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + + multi_callable = _stream_stream_multi_callable(self._channel) + response_iterator = multi_callable( + request_iterator, + metadata=( + (b'test', b'ConsumingTooManyStreamResponsesStreamRequest'),)) + for _ in range(test_constants.STREAM_LENGTH): + next(response_iterator) + for _ in range(test_constants.STREAM_LENGTH): + with self.assertRaises(StopIteration): + next(response_iterator) + + self.assertIsNotNone(response_iterator.initial_metadata()) + self.assertIs(grpc.StatusCode.OK, response_iterator.code()) + self.assertIsNotNone(response_iterator.details()) + self.assertIsNotNone(response_iterator.trailing_metadata()) + + def testCancelledUnaryRequestUnaryResponse(self): + request = b'\x07\x17' + + multi_callable = _unary_unary_multi_callable(self._channel) + with self._control.pause(): + response_future = multi_callable.future( + request, + metadata=((b'test', b'CancelledUnaryRequestUnaryResponse'),)) + response_future.cancel() + + self.assertTrue(response_future.cancelled()) + with self.assertRaises(grpc.FutureCancelledError): + response_future.result() + self.assertIs(grpc.StatusCode.CANCELLED, response_future.code()) + + def testCancelledUnaryRequestStreamResponse(self): + request = b'\x07\x19' + + multi_callable = _unary_stream_multi_callable(self._channel) + with self._control.pause(): + response_iterator = multi_callable( + request, + metadata=((b'test', b'CancelledUnaryRequestStreamResponse'),)) + self._control.block_until_paused() + response_iterator.cancel() + + with self.assertRaises(grpc.RpcError) as exception_context: + next(response_iterator) + self.assertIs(grpc.StatusCode.CANCELLED, exception_context.exception.code()) + self.assertIsNotNone(response_iterator.initial_metadata()) + self.assertIs(grpc.StatusCode.CANCELLED, response_iterator.code()) + self.assertIsNotNone(response_iterator.details()) + self.assertIsNotNone(response_iterator.trailing_metadata()) + + def testCancelledStreamRequestUnaryResponse(self): + requests = tuple(b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + + multi_callable = _stream_unary_multi_callable(self._channel) + with self._control.pause(): + response_future = multi_callable.future( + request_iterator, + metadata=((b'test', b'CancelledStreamRequestUnaryResponse'),)) + self._control.block_until_paused() + response_future.cancel() + + self.assertTrue(response_future.cancelled()) + with self.assertRaises(grpc.FutureCancelledError): + response_future.result() + self.assertIsNotNone(response_future.initial_metadata()) + self.assertIs(grpc.StatusCode.CANCELLED, response_future.code()) + self.assertIsNotNone(response_future.details()) + self.assertIsNotNone(response_future.trailing_metadata()) + + def testCancelledStreamRequestStreamResponse(self): + requests = tuple(b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + + multi_callable = _stream_stream_multi_callable(self._channel) + with self._control.pause(): + response_iterator = multi_callable( + request_iterator, + metadata=((b'test', b'CancelledStreamRequestStreamResponse'),)) + response_iterator.cancel() + + with self.assertRaises(grpc.RpcError): + next(response_iterator) + self.assertIsNotNone(response_iterator.initial_metadata()) + self.assertIs(grpc.StatusCode.CANCELLED, response_iterator.code()) + self.assertIsNotNone(response_iterator.details()) + self.assertIsNotNone(response_iterator.trailing_metadata()) + + def testExpiredUnaryRequestBlockingUnaryResponse(self): + request = b'\x07\x17' + + multi_callable = _unary_unary_multi_callable(self._channel) + with self._control.pause(): + with self.assertRaises(grpc.RpcError) as exception_context: + multi_callable( + request, timeout=test_constants.SHORT_TIMEOUT, + metadata=((b'test', b'ExpiredUnaryRequestBlockingUnaryResponse'),), + with_call=True) + + self.assertIsNotNone(exception_context.exception.initial_metadata()) + self.assertIs( + grpc.StatusCode.DEADLINE_EXCEEDED, exception_context.exception.code()) + self.assertIsNotNone(exception_context.exception.details()) + self.assertIsNotNone(exception_context.exception.trailing_metadata()) + + def testExpiredUnaryRequestFutureUnaryResponse(self): + request = b'\x07\x17' + callback = _Callback() + + multi_callable = _unary_unary_multi_callable(self._channel) + with self._control.pause(): + response_future = multi_callable.future( + request, timeout=test_constants.SHORT_TIMEOUT, + metadata=((b'test', b'ExpiredUnaryRequestFutureUnaryResponse'),)) + response_future.add_done_callback(callback) + value_passed_to_callback = callback.value() + + self.assertIs(response_future, value_passed_to_callback) + self.assertIsNotNone(response_future.initial_metadata()) + self.assertIs(grpc.StatusCode.DEADLINE_EXCEEDED, response_future.code()) + self.assertIsNotNone(response_future.details()) + self.assertIsNotNone(response_future.trailing_metadata()) + with self.assertRaises(grpc.RpcError) as exception_context: + response_future.result() + self.assertIs( + grpc.StatusCode.DEADLINE_EXCEEDED, exception_context.exception.code()) + self.assertIsInstance(response_future.exception(), grpc.RpcError) + self.assertIs( + grpc.StatusCode.DEADLINE_EXCEEDED, response_future.exception().code()) + + def testExpiredUnaryRequestStreamResponse(self): + request = b'\x07\x19' + + multi_callable = _unary_stream_multi_callable(self._channel) + with self._control.pause(): + with self.assertRaises(grpc.RpcError) as exception_context: + response_iterator = multi_callable( + request, timeout=test_constants.SHORT_TIMEOUT, + metadata=((b'test', b'ExpiredUnaryRequestStreamResponse'),)) + next(response_iterator) + + self.assertIs( + grpc.StatusCode.DEADLINE_EXCEEDED, exception_context.exception.code()) + self.assertIs(grpc.StatusCode.DEADLINE_EXCEEDED, response_iterator.code()) + + def testExpiredStreamRequestBlockingUnaryResponse(self): + requests = tuple(b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + + multi_callable = _stream_unary_multi_callable(self._channel) + with self._control.pause(): + with self.assertRaises(grpc.RpcError) as exception_context: + multi_callable( + request_iterator, timeout=test_constants.SHORT_TIMEOUT, + metadata=((b'test', b'ExpiredStreamRequestBlockingUnaryResponse'),)) + + self.assertIsNotNone(exception_context.exception.initial_metadata()) + self.assertIs( + grpc.StatusCode.DEADLINE_EXCEEDED, exception_context.exception.code()) + self.assertIsNotNone(exception_context.exception.details()) + self.assertIsNotNone(exception_context.exception.trailing_metadata()) + + def testExpiredStreamRequestFutureUnaryResponse(self): + requests = tuple(b'\x07\x18' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + callback = _Callback() + + multi_callable = _stream_unary_multi_callable(self._channel) + with self._control.pause(): + response_future = multi_callable.future( + request_iterator, timeout=test_constants.SHORT_TIMEOUT, + metadata=((b'test', b'ExpiredStreamRequestFutureUnaryResponse'),)) + response_future.add_done_callback(callback) + value_passed_to_callback = callback.value() + + with self.assertRaises(grpc.RpcError) as exception_context: + response_future.result() + self.assertIs(grpc.StatusCode.DEADLINE_EXCEEDED, response_future.code()) + self.assertIs( + grpc.StatusCode.DEADLINE_EXCEEDED, exception_context.exception.code()) + self.assertIsInstance(response_future.exception(), grpc.RpcError) + self.assertIs(response_future, value_passed_to_callback) + self.assertIsNotNone(response_future.initial_metadata()) + self.assertIs(grpc.StatusCode.DEADLINE_EXCEEDED, response_future.code()) + self.assertIsNotNone(response_future.details()) + self.assertIsNotNone(response_future.trailing_metadata()) + + def testExpiredStreamRequestStreamResponse(self): + requests = tuple(b'\x67\x18' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + + multi_callable = _stream_stream_multi_callable(self._channel) + with self._control.pause(): + with self.assertRaises(grpc.RpcError) as exception_context: + response_iterator = multi_callable( + request_iterator, timeout=test_constants.SHORT_TIMEOUT, + metadata=((b'test', b'ExpiredStreamRequestStreamResponse'),)) + next(response_iterator) + + self.assertIs( + grpc.StatusCode.DEADLINE_EXCEEDED, exception_context.exception.code()) + self.assertIs(grpc.StatusCode.DEADLINE_EXCEEDED, response_iterator.code()) + + def testFailedUnaryRequestBlockingUnaryResponse(self): + request = b'\x37\x17' + + multi_callable = _unary_unary_multi_callable(self._channel) + with self._control.fail(): + with self.assertRaises(grpc.RpcError) as exception_context: + multi_callable( + request, + metadata=((b'test', b'FailedUnaryRequestBlockingUnaryResponse'),), + with_call=True) + + self.assertIs(grpc.StatusCode.UNKNOWN, exception_context.exception.code()) + + def testFailedUnaryRequestFutureUnaryResponse(self): + request = b'\x37\x17' + callback = _Callback() + + multi_callable = _unary_unary_multi_callable(self._channel) + with self._control.fail(): + response_future = multi_callable.future( + request, + metadata=((b'test', b'FailedUnaryRequestFutureUnaryResponse'),)) + response_future.add_done_callback(callback) + value_passed_to_callback = callback.value() + + with self.assertRaises(grpc.RpcError) as exception_context: + response_future.result() + self.assertIs( + grpc.StatusCode.UNKNOWN, exception_context.exception.code()) + self.assertIsInstance(response_future.exception(), grpc.RpcError) + self.assertIs(grpc.StatusCode.UNKNOWN, response_future.exception().code()) + self.assertIs(response_future, value_passed_to_callback) + + def testFailedUnaryRequestStreamResponse(self): + request = b'\x37\x17' + + multi_callable = _unary_stream_multi_callable(self._channel) + with self.assertRaises(grpc.RpcError) as exception_context: + with self._control.fail(): + response_iterator = multi_callable( + request, + metadata=((b'test', b'FailedUnaryRequestStreamResponse'),)) + next(response_iterator) + + self.assertIs(grpc.StatusCode.UNKNOWN, exception_context.exception.code()) + + def testFailedStreamRequestBlockingUnaryResponse(self): + requests = tuple(b'\x47\x58' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + + multi_callable = _stream_unary_multi_callable(self._channel) + with self._control.fail(): + with self.assertRaises(grpc.RpcError) as exception_context: + multi_callable( + request_iterator, + metadata=((b'test', b'FailedStreamRequestBlockingUnaryResponse'),)) + + self.assertIs(grpc.StatusCode.UNKNOWN, exception_context.exception.code()) + + def testFailedStreamRequestFutureUnaryResponse(self): + requests = tuple(b'\x07\x18' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + callback = _Callback() + + multi_callable = _stream_unary_multi_callable(self._channel) + with self._control.fail(): + response_future = multi_callable.future( + request_iterator, + metadata=((b'test', b'FailedStreamRequestFutureUnaryResponse'),)) + response_future.add_done_callback(callback) + value_passed_to_callback = callback.value() + + with self.assertRaises(grpc.RpcError) as exception_context: + response_future.result() + self.assertIs(grpc.StatusCode.UNKNOWN, response_future.code()) + self.assertIs( + grpc.StatusCode.UNKNOWN, exception_context.exception.code()) + self.assertIsInstance(response_future.exception(), grpc.RpcError) + self.assertIs(response_future, value_passed_to_callback) + + def testFailedStreamRequestStreamResponse(self): + requests = tuple(b'\x67\x88' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + + multi_callable = _stream_stream_multi_callable(self._channel) + with self._control.fail(): + with self.assertRaises(grpc.RpcError) as exception_context: + response_iterator = multi_callable( + request_iterator, + metadata=((b'test', b'FailedStreamRequestStreamResponse'),)) + tuple(response_iterator) + + self.assertIs(grpc.StatusCode.UNKNOWN, exception_context.exception.code()) + self.assertIs(grpc.StatusCode.UNKNOWN, response_iterator.code()) + + def testIgnoredUnaryRequestFutureUnaryResponse(self): + request = b'\x37\x17' + + multi_callable = _unary_unary_multi_callable(self._channel) + multi_callable.future( + request, + metadata=((b'test', b'IgnoredUnaryRequestFutureUnaryResponse'),)) + + def testIgnoredUnaryRequestStreamResponse(self): + request = b'\x37\x17' + + multi_callable = _unary_stream_multi_callable(self._channel) + multi_callable( + request, + metadata=((b'test', b'IgnoredUnaryRequestStreamResponse'),)) + + def testIgnoredStreamRequestFutureUnaryResponse(self): + requests = tuple(b'\x07\x18' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + + multi_callable = _stream_unary_multi_callable(self._channel) + multi_callable.future( + request_iterator, + metadata=((b'test', b'IgnoredStreamRequestFutureUnaryResponse'),)) + + def testIgnoredStreamRequestStreamResponse(self): + requests = tuple(b'\x67\x88' for _ in range(test_constants.STREAM_LENGTH)) + request_iterator = iter(requests) + + multi_callable = _stream_stream_multi_callable(self._channel) + multi_callable( + request_iterator, + metadata=((b'test', b'IgnoredStreamRequestStreamResponse'),)) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/_thread_cleanup_test.py b/src/python/grpcio/tests/unit/_thread_cleanup_test.py new file mode 100644 index 0000000000..3e4f317edc --- /dev/null +++ b/src/python/grpcio/tests/unit/_thread_cleanup_test.py @@ -0,0 +1,117 @@ +# Copyright 2016, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +"""Tests for CleanupThread.""" + +import threading +import time +import unittest + +from grpc import _common + +_SHORT_TIME = 0.5 +_LONG_TIME = 2.0 +_EPSILON = 0.1 + + +def cleanup(timeout): + if timeout is not None: + time.sleep(timeout) + else: + time.sleep(_LONG_TIME) + + +def slow_cleanup(timeout): + # Don't respect timeout + time.sleep(_LONG_TIME) + + +class CleanupThreadTest(unittest.TestCase): + + def testTargetInvocation(self): + event = threading.Event() + def target(arg1, arg2, arg3=None): + self.assertEqual('arg1', arg1) + self.assertEqual('arg2', arg2) + self.assertEqual('arg3', arg3) + event.set() + + cleanup_thread = _common.CleanupThread(behavior=lambda x: None, + target=target, name='test-name', + args=('arg1', 'arg2'), kwargs={'arg3': 'arg3'}) + cleanup_thread.start() + cleanup_thread.join() + self.assertEqual(cleanup_thread.name, 'test-name') + self.assertTrue(event.is_set()) + + def testJoinNoTimeout(self): + cleanup_thread = _common.CleanupThread(behavior=cleanup) + cleanup_thread.start() + start_time = time.time() + cleanup_thread.join() + end_time = time.time() + self.assertAlmostEqual(_LONG_TIME, end_time - start_time, delta=_EPSILON) + + def testJoinTimeout(self): + cleanup_thread = _common.CleanupThread(behavior=cleanup) + cleanup_thread.start() + start_time = time.time() + cleanup_thread.join(_SHORT_TIME) + end_time = time.time() + self.assertAlmostEqual(_SHORT_TIME, end_time - start_time, delta=_EPSILON) + + def testJoinTimeoutSlowBehavior(self): + cleanup_thread = _common.CleanupThread(behavior=slow_cleanup) + cleanup_thread.start() + start_time = time.time() + cleanup_thread.join(_SHORT_TIME) + end_time = time.time() + self.assertAlmostEqual(_LONG_TIME, end_time - start_time, delta=_EPSILON) + + def testJoinTimeoutSlowTarget(self): + event = threading.Event() + def target(): + event.wait(_LONG_TIME) + cleanup_thread = _common.CleanupThread(behavior=cleanup, target=target) + cleanup_thread.start() + start_time = time.time() + cleanup_thread.join(_SHORT_TIME) + end_time = time.time() + self.assertAlmostEqual(_SHORT_TIME, end_time - start_time, delta=_EPSILON) + event.set() + + def testJoinZeroTimeout(self): + cleanup_thread = _common.CleanupThread(behavior=cleanup) + cleanup_thread.start() + start_time = time.time() + cleanup_thread.join(0) + end_time = time.time() + self.assertAlmostEqual(0, end_time - start_time, delta=_EPSILON) + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/beta/_beta_features_test.py b/src/python/grpcio/tests/unit/beta/_beta_features_test.py index bb2893a21b..3a9701b8eb 100644 --- a/src/python/grpcio/tests/unit/beta/_beta_features_test.py +++ b/src/python/grpcio/tests/unit/beta/_beta_features_test.py @@ -42,8 +42,8 @@ from tests.unit.framework.common import test_constants _SERVER_HOST_OVERRIDE = 'foo.test.google.fr' -_PER_RPC_CREDENTIALS_METADATA_KEY = 'my-call-credentials-metadata-key' -_PER_RPC_CREDENTIALS_METADATA_VALUE = 'my-call-credentials-metadata-value' +_PER_RPC_CREDENTIALS_METADATA_KEY = b'my-call-credentials-metadata-key' +_PER_RPC_CREDENTIALS_METADATA_VALUE = b'my-call-credentials-metadata-value' _GROUP = 'group' _UNARY_UNARY = 'unary-unary' diff --git a/src/python/grpcio/tests/unit/beta/_connectivity_channel_test.py b/src/python/grpcio/tests/unit/beta/_connectivity_channel_test.py index 5dc8720639..488f7d7141 100644 --- a/src/python/grpcio/tests/unit/beta/_connectivity_channel_test.py +++ b/src/python/grpcio/tests/unit/beta/_connectivity_channel_test.py @@ -187,5 +187,15 @@ class ChannelConnectivityTest(unittest.TestCase): server_completion_queue_thread.join() +class ConnectivityStatesTest(unittest.TestCase): + + def testBetaConnectivityStates(self): + self.assertIsNotNone(interfaces.ChannelConnectivity.IDLE) + self.assertIsNotNone(interfaces.ChannelConnectivity.CONNECTING) + self.assertIsNotNone(interfaces.ChannelConnectivity.READY) + self.assertIsNotNone(interfaces.ChannelConnectivity.TRANSIENT_FAILURE) + self.assertIsNotNone(interfaces.ChannelConnectivity.FATAL_FAILURE) + + if __name__ == '__main__': unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/beta/_implementations_test.py b/src/python/grpcio/tests/unit/beta/_implementations_test.py index 26be670c45..127f93e9bb 100644 --- a/src/python/grpcio/tests/unit/beta/_implementations_test.py +++ b/src/python/grpcio/tests/unit/beta/_implementations_test.py @@ -29,8 +29,11 @@ """Tests the implementations module of the gRPC Python Beta API.""" +import datetime import unittest +from oauth2client import client as oauth2client_client + from grpc.beta import implementations from tests.unit import resources @@ -49,5 +52,19 @@ class ChannelCredentialsTest(unittest.TestCase): channel_credentials, implementations.ChannelCredentials) +class CallCredentialsTest(unittest.TestCase): + + def test_google_call_credentials(self): + creds = oauth2client_client.GoogleCredentials( + 'token', 'client_id', 'secret', 'refresh_token', + datetime.datetime(2008, 6, 24), 'https://refresh.uri.com/', + 'user_agent') + call_creds = implementations.google_call_credentials(creds) + self.assertIsInstance(call_creds, implementations.CallCredentials) + + def test_access_token_call_credentials(self): + call_creds = implementations.access_token_call_credentials('token') + self.assertIsInstance(call_creds, implementations.CallCredentials) + if __name__ == '__main__': unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/unit/beta/_not_found_test.py b/src/python/grpcio/tests/unit/beta/_not_found_test.py index 44fcd1e13c..37b8c49120 100644 --- a/src/python/grpcio/tests/unit/beta/_not_found_test.py +++ b/src/python/grpcio/tests/unit/beta/_not_found_test.py @@ -61,7 +61,7 @@ class NotFoundTest(unittest.TestCase): def test_future_stream_unary_not_found(self): rpc_future = self._generic_stub.future_stream_unary( - 'grupe', 'mevvod', b'def', test_constants.LONG_TIMEOUT) + 'grupe', 'mevvod', [b'def'], test_constants.LONG_TIMEOUT) with self.assertRaises(face.LocalError) as exception_assertion_context: rpc_future.result() self.assertIs( diff --git a/src/python/grpcio/tests/unit/beta/test_utilities.py b/src/python/grpcio/tests/unit/beta/test_utilities.py index 0313e06a93..e374b203ce 100644 --- a/src/python/grpcio/tests/unit/beta/test_utilities.py +++ b/src/python/grpcio/tests/unit/beta/test_utilities.py @@ -29,7 +29,7 @@ """Test-appropriate entry points into the gRPC Python Beta API.""" -from grpc._adapter import _intermediary_low +import grpc from grpc.beta import implementations @@ -48,9 +48,8 @@ def not_really_secure_channel( An implementations.Channel to the remote host through which RPCs may be conducted. """ - hostport = '%s:%d' % (host, port) - intermediary_low_channel = _intermediary_low.Channel( - hostport, channel_credentials._low_credentials, - server_host_override=server_host_override) - return implementations.Channel( - intermediary_low_channel._internal, intermediary_low_channel) + target = '%s:%d' % (host, port) + channel = grpc.secure_channel( + target, channel_credentials._credentials, + ((b'grpc.ssl_target_name_override', server_host_override,),)) + return implementations.Channel(channel) diff --git a/src/python/grpcio/tests/unit/framework/common/test_control.py b/src/python/grpcio/tests/unit/framework/common/test_control.py index ca5ba3a854..088e2f8b88 100644 --- a/src/python/grpcio/tests/unit/framework/common/test_control.py +++ b/src/python/grpcio/tests/unit/framework/common/test_control.py @@ -60,10 +60,16 @@ class Control(six.with_metaclass(abc.ABCMeta)): class PauseFailControl(Control): - """A Control that can be used to pause or fail code under control.""" + """A Control that can be used to pause or fail code under control. + + This object is only safe for use from two threads: one of the system under + test calling control and the other from the test system calling pause, + block_until_paused, and fail. + """ def __init__(self): self._condition = threading.Condition() + self._pause = False self._paused = False self._fail = False @@ -72,19 +78,31 @@ class PauseFailControl(Control): if self._fail: raise Defect() - while self._paused: + while self._pause: + self._paused = True + self._condition.notify_all() self._condition.wait() + self._paused = False @contextlib.contextmanager def pause(self): """Pauses code under control while controlling code is in context.""" with self._condition: - self._paused = True + self._pause = True yield with self._condition: - self._paused = False + self._pause = False self._condition.notify_all() + def block_until_paused(self): + """Blocks controlling code until code under control is paused. + + May only be called within the context of a pause call. + """ + with self._condition: + while not self._paused: + self._condition.wait() + @contextlib.contextmanager def fail(self): """Fails code under control while controlling code is in context.""" diff --git a/src/python/grpcio/tests/unit/framework/interfaces/base/test_cases.py b/src/python/grpcio/tests/unit/framework/interfaces/base/test_cases.py index 4f8e26c9a2..5d16bf98be 100644 --- a/src/python/grpcio/tests/unit/framework/interfaces/base/test_cases.py +++ b/src/python/grpcio/tests/unit/framework/interfaces/base/test_cases.py @@ -29,6 +29,8 @@ """Tests of the base interface of RPC Framework.""" +from __future__ import division + import logging import random import threading @@ -54,13 +56,13 @@ class _Serialization(test_interfaces.Serialization): return request + request def deserialize_request(self, serialized_request): - return serialized_request[:len(serialized_request) / 2] + return serialized_request[:len(serialized_request) // 2] def serialize_response(self, response): return response * 3 def deserialize_response(self, serialized_response): - return serialized_response[2 * len(serialized_response) / 3:] + return serialized_response[2 * len(serialized_response) // 3:] def _advance(quadruples, operator, controller): diff --git a/src/python/grpcio/tests/unit/test_common.py b/src/python/grpcio/tests/unit/test_common.py index 7b4d20dccb..b779f65e7e 100644 --- a/src/python/grpcio/tests/unit/test_common.py +++ b/src/python/grpcio/tests/unit/test_common.py @@ -61,6 +61,10 @@ def metadata_transmitted(original_metadata, transmitted_metadata): original = collections.defaultdict(list) for key_value_pair in original_metadata: key, value = tuple(key_value_pair) + if not isinstance(key, bytes): + key = key.encode() + if not isinstance(value, bytes): + value = value.encode() original[key].append(value) transmitted = collections.defaultdict(list) for key_value_pair in transmitted_metadata: |