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-rw-r--r--src/python/grpcio/grpc/_adapter/_low.py96
1 files changed, 15 insertions, 81 deletions
diff --git a/src/python/grpcio/grpc/_adapter/_low.py b/src/python/grpcio/grpc/_adapter/_low.py
index b13d8dd9dd..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):
@@ -195,26 +125,30 @@ class Call(_types.Call):
translated_op = cygrpc.operation_send_initial_metadata(
cygrpc.Metadata(
cygrpc.Metadatum(key, value)
- for key, value in op.initial_metadata))
+ for key, value in op.initial_metadata),
+ op.flags)
elif op.type == _types.OpType.SEND_MESSAGE:
- translated_op = cygrpc.operation_send_message(op.message)
+ translated_op = cygrpc.operation_send_message(op.message, op.flags)
elif op.type == _types.OpType.SEND_CLOSE_FROM_CLIENT:
- translated_op = cygrpc.operation_send_close_from_client()
+ translated_op = cygrpc.operation_send_close_from_client(op.flags)
elif op.type == _types.OpType.SEND_STATUS_FROM_SERVER:
translated_op = cygrpc.operation_send_status_from_server(
cygrpc.Metadata(
cygrpc.Metadatum(key, value)
for key, value in op.trailing_metadata),
op.status.code,
- op.status.details)
+ op.status.details,
+ op.flags)
elif op.type == _types.OpType.RECV_INITIAL_METADATA:
- translated_op = cygrpc.operation_receive_initial_metadata()
+ translated_op = cygrpc.operation_receive_initial_metadata(
+ op.flags)
elif op.type == _types.OpType.RECV_MESSAGE:
- translated_op = cygrpc.operation_receive_message()
+ translated_op = cygrpc.operation_receive_message(op.flags)
elif op.type == _types.OpType.RECV_STATUS_ON_CLIENT:
- translated_op = cygrpc.operation_receive_status_on_client()
+ translated_op = cygrpc.operation_receive_status_on_client(
+ op.flags)
elif op.type == _types.OpType.RECV_CLOSE_ON_SERVER:
- translated_op = cygrpc.operation_receive_close_on_server()
+ translated_op = cygrpc.operation_receive_close_on_server(op.flags)
else:
raise ValueError('unexpected operation type {}'.format(op.type))
translated_ops.append(translated_op)