diff options
author | 2015-08-24 14:33:39 -0700 | |
---|---|---|
committer | 2015-08-24 14:33:39 -0700 | |
commit | 0660eaca008c3c4ee8291e9de1b53a1d9ba35185 (patch) | |
tree | 22531a98c412be57964efbc9d4f9c783fb8fc6b8 /src | |
parent | e8a7e30a751a9ba0aca79e4fa3b0fcd51d98c4e0 (diff) | |
parent | ddb0b8c4956b986a26cbbcabd4c4d81b9391770d (diff) |
Merge branch 'master' into fray
Diffstat (limited to 'src')
20 files changed, 1534 insertions, 105 deletions
diff --git a/src/core/channel/channel_args.c b/src/core/channel/channel_args.c index c430b56fa2..54ee75af28 100644 --- a/src/core/channel/channel_args.c +++ b/src/core/channel/channel_args.c @@ -37,6 +37,7 @@ #include <grpc/support/alloc.h> #include <grpc/support/string_util.h> +#include <grpc/support/useful.h> #include <string.h> @@ -146,3 +147,65 @@ grpc_channel_args *grpc_channel_args_set_compression_algorithm( tmp.value.integer = algorithm; return grpc_channel_args_copy_and_add(a, &tmp, 1); } + +/** Returns 1 if the argument for compression algorithm's enabled states bitset + * was found in \a a, returning the arg's value in \a states. Otherwise, returns + * 0. */ +static int find_compression_algorithm_states_bitset( + const grpc_channel_args *a, int **states_arg) { + if (a != NULL) { + size_t i; + for (i = 0; i < a->num_args; ++i) { + if (a->args[i].type == GRPC_ARG_INTEGER && + !strcmp(GRPC_COMPRESSION_ALGORITHM_STATE_ARG, a->args[i].key)) { + *states_arg = &a->args[i].value.integer; + return 1; /* GPR_TRUE */ + } + } + } + return 0; /* GPR_FALSE */ +} + +grpc_channel_args *grpc_channel_args_compression_algorithm_set_state( + grpc_channel_args **a, + grpc_compression_algorithm algorithm, + int state) { + int *states_arg; + grpc_channel_args *result = *a; + const int states_arg_found = + find_compression_algorithm_states_bitset(*a, &states_arg); + + if (states_arg_found) { + if (state != 0) { + GPR_BITSET(states_arg, algorithm); + } else { + GPR_BITCLEAR(states_arg, algorithm); + } + } else { + /* create a new arg */ + grpc_arg tmp; + tmp.type = GRPC_ARG_INTEGER; + tmp.key = GRPC_COMPRESSION_ALGORITHM_STATE_ARG; + /* all enabled by default */ + tmp.value.integer = (1u << GRPC_COMPRESS_ALGORITHMS_COUNT) - 1; + if (state != 0) { + GPR_BITSET(&tmp.value.integer, algorithm); + } else { + GPR_BITCLEAR(&tmp.value.integer, algorithm); + } + result = grpc_channel_args_copy_and_add(*a, &tmp, 1); + grpc_channel_args_destroy(*a); + *a = result; + } + return result; +} + +int grpc_channel_args_compression_algorithm_get_states( + const grpc_channel_args *a) { + int *states_arg; + if (find_compression_algorithm_states_bitset(a, &states_arg)) { + return *states_arg; + } else { + return (1u << GRPC_COMPRESS_ALGORITHMS_COUNT) - 1; /* All algs. enabled */ + } +} diff --git a/src/core/channel/channel_args.h b/src/core/channel/channel_args.h index 7e6ddd3997..06a6012dee 100644 --- a/src/core/channel/channel_args.h +++ b/src/core/channel/channel_args.h @@ -67,4 +67,24 @@ grpc_compression_algorithm grpc_channel_args_get_compression_algorithm( grpc_channel_args *grpc_channel_args_set_compression_algorithm( grpc_channel_args *a, grpc_compression_algorithm algorithm); +/** Sets the support for the given compression algorithm. By default, all + * compression algorithms are enabled. It's an error to disable an algorithm set + * by grpc_channel_args_set_compression_algorithm. + * + * Returns an instance will the updated algorithm states. The \a a pointer is + * modified to point to the returned instance (which may be different from the + * input value of \a a). */ +grpc_channel_args *grpc_channel_args_compression_algorithm_set_state( + grpc_channel_args **a, + grpc_compression_algorithm algorithm, + int enabled); + +/** Returns the bitset representing the support state (true for enabled, false + * for disabled) for compression algorithms. + * + * The i-th bit of the returned bitset corresponds to the i-th entry in the + * grpc_compression_algorithm enum. */ +int grpc_channel_args_compression_algorithm_get_states( + const grpc_channel_args *a); + #endif /* GRPC_INTERNAL_CORE_CHANNEL_CHANNEL_ARGS_H */ diff --git a/src/core/iomgr/pollset.h b/src/core/iomgr/pollset.h index c474e4dbf1..337596cb74 100644 --- a/src/core/iomgr/pollset.h +++ b/src/core/iomgr/pollset.h @@ -74,10 +74,9 @@ void grpc_pollset_destroy(grpc_pollset *pollset); grpc_pollset_work, and it is guaranteed that GRPC_POLLSET_MU(pollset) will not be released by grpc_pollset_work AFTER worker has been destroyed. - Returns true if some work has been done, and false if the deadline - expired. */ -int grpc_pollset_work(grpc_pollset *pollset, grpc_pollset_worker *worker, - gpr_timespec deadline); + Tries not to block past deadline. */ +void grpc_pollset_work(grpc_pollset *pollset, grpc_pollset_worker *worker, + gpr_timespec now, gpr_timespec deadline); /* Break one polling thread out of polling work for this pollset. If specific_worker is GRPC_POLLSET_KICK_BROADCAST, kick ALL the workers. diff --git a/src/core/iomgr/pollset_multipoller_with_epoll.c b/src/core/iomgr/pollset_multipoller_with_epoll.c index 5ea9dd2101..fe66ebed77 100644 --- a/src/core/iomgr/pollset_multipoller_with_epoll.c +++ b/src/core/iomgr/pollset_multipoller_with_epoll.c @@ -181,7 +181,7 @@ static void multipoll_with_epoll_pollset_maybe_work( pfds[1].events = POLLIN; pfds[1].revents = 0; - poll_rv = poll(pfds, 2, timeout_ms); + poll_rv = grpc_poll_function(pfds, 2, timeout_ms); if (poll_rv < 0) { if (errno != EINTR) { diff --git a/src/core/iomgr/pollset_multipoller_with_poll_posix.c b/src/core/iomgr/pollset_multipoller_with_poll_posix.c index 001fcecf76..30ee6e24db 100644 --- a/src/core/iomgr/pollset_multipoller_with_poll_posix.c +++ b/src/core/iomgr/pollset_multipoller_with_poll_posix.c @@ -144,7 +144,7 @@ static void multipoll_with_poll_pollset_maybe_work( POLLOUT, &watchers[i]); } - r = poll(pfds, pfd_count, timeout); + r = grpc_poll_function(pfds, pfd_count, timeout); for (i = 1; i < pfd_count; i++) { grpc_fd_end_poll(&watchers[i], pfds[i].revents & POLLIN, diff --git a/src/core/iomgr/pollset_posix.c b/src/core/iomgr/pollset_posix.c index a01f9ff727..6bd1b61f24 100644 --- a/src/core/iomgr/pollset_posix.c +++ b/src/core/iomgr/pollset_posix.c @@ -38,7 +38,6 @@ #include "src/core/iomgr/pollset_posix.h" #include <errno.h> -#include <poll.h> #include <stdlib.h> #include <string.h> #include <unistd.h> @@ -57,6 +56,8 @@ GPR_TLS_DECL(g_current_thread_poller); GPR_TLS_DECL(g_current_thread_worker); +grpc_poll_function_type grpc_poll_function = poll; + static void remove_worker(grpc_pollset *p, grpc_pollset_worker *worker) { worker->prev->next = worker->next; worker->next->prev = worker->prev; @@ -89,6 +90,7 @@ static void push_front_worker(grpc_pollset *p, grpc_pollset_worker *worker) { } void grpc_pollset_kick(grpc_pollset *p, grpc_pollset_worker *specific_worker) { + /* pollset->mu already held */ if (specific_worker != NULL) { if (specific_worker == GRPC_POLLSET_KICK_BROADCAST) { for (specific_worker = p->root_worker.next; @@ -168,14 +170,10 @@ static void finish_shutdown(grpc_pollset *pollset) { pollset->shutdown_done_cb(pollset->shutdown_done_arg); } -int grpc_pollset_work(grpc_pollset *pollset, grpc_pollset_worker *worker, - gpr_timespec deadline) { +void grpc_pollset_work(grpc_pollset *pollset, grpc_pollset_worker *worker, + gpr_timespec now, gpr_timespec deadline) { /* pollset->mu already held */ - gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC); int added_worker = 0; - if (gpr_time_cmp(now, deadline) > 0) { - return 0; - } /* this must happen before we (potentially) drop pollset->mu */ worker->next = worker->prev = NULL; /* TODO(ctiller): pool these */ @@ -217,7 +215,6 @@ done: gpr_mu_lock(&pollset->mu); } } - return 1; } void grpc_pollset_shutdown(grpc_pollset *pollset, @@ -456,7 +453,7 @@ static void basic_pollset_maybe_work(grpc_pollset *pollset, /* poll fd count (argument 2) is shortened by one if we have no events to poll on - such that it only includes the kicker */ - r = poll(pfd, nfds, timeout); + r = grpc_poll_function(pfd, nfds, timeout); GRPC_TIMER_MARK(GRPC_PTAG_POLL_FINISHED, r); if (fd) { diff --git a/src/core/iomgr/pollset_posix.h b/src/core/iomgr/pollset_posix.h index a3ea353de6..69bd9cca8c 100644 --- a/src/core/iomgr/pollset_posix.h +++ b/src/core/iomgr/pollset_posix.h @@ -34,6 +34,8 @@ #ifndef GRPC_INTERNAL_CORE_IOMGR_POLLSET_POSIX_H #define GRPC_INTERNAL_CORE_IOMGR_POLLSET_POSIX_H +#include <poll.h> + #include <grpc/support/sync.h> #include "src/core/iomgr/wakeup_fd_posix.h" @@ -118,4 +120,8 @@ void grpc_poll_become_multipoller(grpc_pollset *pollset, struct grpc_fd **fds, * be locked) */ int grpc_pollset_has_workers(grpc_pollset *pollset); +/* override to allow tests to hook poll() usage */ +typedef int (*grpc_poll_function_type)(struct pollfd *, nfds_t, int); +extern grpc_poll_function_type grpc_poll_function; + #endif /* GRPC_INTERNAL_CORE_IOMGR_POLLSET_POSIX_H */ diff --git a/src/core/iomgr/pollset_windows.c b/src/core/iomgr/pollset_windows.c index 8710395ab3..07522c8a0c 100644 --- a/src/core/iomgr/pollset_windows.c +++ b/src/core/iomgr/pollset_windows.c @@ -99,14 +99,9 @@ void grpc_pollset_destroy(grpc_pollset *pollset) { gpr_mu_destroy(&pollset->mu); } -int grpc_pollset_work(grpc_pollset *pollset, grpc_pollset_worker *worker, - gpr_timespec deadline) { - gpr_timespec now; +void grpc_pollset_work(grpc_pollset *pollset, grpc_pollset_worker *worker, + gpr_timespec now, gpr_timespec deadline) { int added_worker = 0; - now = gpr_now(GPR_CLOCK_MONOTONIC); - if (gpr_time_cmp(now, deadline) > 0) { - return 0 /* GPR_FALSE */; - } worker->next = worker->prev = NULL; gpr_cv_init(&worker->cv); if (grpc_maybe_call_delayed_callbacks(&pollset->mu, 1 /* GPR_TRUE */)) { @@ -127,7 +122,6 @@ done: if (added_worker) { remove_worker(pollset, worker); } - return 1 /* GPR_TRUE */; } void grpc_pollset_kick(grpc_pollset *p, grpc_pollset_worker *specific_worker) { diff --git a/src/core/security/google_default_credentials.c b/src/core/security/google_default_credentials.c index d6092ece32..3631de867a 100644 --- a/src/core/security/google_default_credentials.c +++ b/src/core/security/google_default_credentials.c @@ -115,7 +115,7 @@ static int is_stack_running_on_compute_engine(void) { gpr_mu_lock(GRPC_POLLSET_MU(&detector.pollset)); while (!detector.is_done) { grpc_pollset_worker worker; - grpc_pollset_work(&detector.pollset, &worker, + grpc_pollset_work(&detector.pollset, &worker, gpr_now(GPR_CLOCK_MONOTONIC), gpr_inf_future(GPR_CLOCK_MONOTONIC)); } gpr_mu_unlock(GRPC_POLLSET_MU(&detector.pollset)); diff --git a/src/core/security/server_auth_filter.c b/src/core/security/server_auth_filter.c index 2f42f01f53..6e831431fa 100644 --- a/src/core/security/server_auth_filter.c +++ b/src/core/security/server_auth_filter.c @@ -104,24 +104,34 @@ static grpc_mdelem *remove_consumed_md(void *user_data, grpc_mdelem *md) { return md; } -static void on_md_processing_done(void *user_data, - const grpc_metadata *consumed_md, - size_t num_consumed_md, int success) { +static void on_md_processing_done( + void *user_data, const grpc_metadata *consumed_md, size_t num_consumed_md, + const grpc_metadata *response_md, size_t num_response_md, + grpc_status_code status, const char *error_details) { grpc_call_element *elem = user_data; call_data *calld = elem->call_data; - if (success) { + /* TODO(jboeuf): Implement support for response_md. */ + if (response_md != NULL && num_response_md > 0) { + gpr_log(GPR_INFO, + "response_md in auth metadata processing not supported for now. " + "Ignoring..."); + } + + if (status == GRPC_STATUS_OK) { calld->consumed_md = consumed_md; calld->num_consumed_md = num_consumed_md; grpc_metadata_batch_filter(&calld->md_op->data.metadata, remove_consumed_md, elem); - calld->on_done_recv->cb(calld->on_done_recv->cb_arg, success); + calld->on_done_recv->cb(calld->on_done_recv->cb_arg, 1); } else { - gpr_slice message = gpr_slice_from_copied_string( - "Authentication metadata processing failed."); + gpr_slice message; + error_details = error_details != NULL + ? error_details + : "Authentication metadata processing failed."; + message = gpr_slice_from_copied_string(error_details); grpc_sopb_reset(calld->recv_ops); - grpc_transport_stream_op_add_close(&calld->transport_op, - GRPC_STATUS_UNAUTHENTICATED, &message); + grpc_transport_stream_op_add_close(&calld->transport_op, status, &message); grpc_call_next_op(elem, &calld->transport_op); } } diff --git a/src/core/surface/completion_queue.c b/src/core/surface/completion_queue.c index 77443a7ae8..b58115a93f 100644 --- a/src/core/surface/completion_queue.c +++ b/src/core/surface/completion_queue.c @@ -170,6 +170,9 @@ grpc_event grpc_completion_queue_next(grpc_completion_queue *cc, gpr_timespec deadline, void *reserved) { grpc_event ret; grpc_pollset_worker worker; + int first_loop = 1; + gpr_timespec now; + GPR_ASSERT(!reserved); deadline = gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC); @@ -196,12 +199,15 @@ grpc_event grpc_completion_queue_next(grpc_completion_queue *cc, ret.type = GRPC_QUEUE_SHUTDOWN; break; } - if (!grpc_pollset_work(&cc->pollset, &worker, deadline)) { + now = gpr_now(GPR_CLOCK_MONOTONIC); + if (!first_loop && gpr_time_cmp(now, deadline) >= 0) { gpr_mu_unlock(GRPC_POLLSET_MU(&cc->pollset)); memset(&ret, 0, sizeof(ret)); ret.type = GRPC_QUEUE_TIMEOUT; break; } + first_loop = 0; + grpc_pollset_work(&cc->pollset, &worker, now, deadline); } GRPC_SURFACE_TRACE_RETURNED_EVENT(cc, &ret); GRPC_CQ_INTERNAL_UNREF(cc, "next"); @@ -239,6 +245,9 @@ grpc_event grpc_completion_queue_pluck(grpc_completion_queue *cc, void *tag, grpc_cq_completion *c; grpc_cq_completion *prev; grpc_pollset_worker worker; + gpr_timespec now; + int first_loop = 1; + GPR_ASSERT(!reserved); deadline = gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC); @@ -281,13 +290,16 @@ grpc_event grpc_completion_queue_pluck(grpc_completion_queue *cc, void *tag, ret.type = GRPC_QUEUE_TIMEOUT; break; } - if (!grpc_pollset_work(&cc->pollset, &worker, deadline)) { + now = gpr_now(GPR_CLOCK_MONOTONIC); + if (!first_loop && gpr_time_cmp(now, deadline) >= 0) { del_plucker(cc, tag, &worker); gpr_mu_unlock(GRPC_POLLSET_MU(&cc->pollset)); memset(&ret, 0, sizeof(ret)); ret.type = GRPC_QUEUE_TIMEOUT; break; } + first_loop = 0; + grpc_pollset_work(&cc->pollset, &worker, now, deadline); del_plucker(cc, tag, &worker); } done: diff --git a/src/cpp/server/server.cc b/src/cpp/server/server.cc index 57707121f3..3db23c2abe 100644 --- a/src/cpp/server/server.cc +++ b/src/cpp/server/server.cc @@ -50,6 +50,52 @@ namespace grpc { +class Server::UnimplementedAsyncRequestContext { + protected: + UnimplementedAsyncRequestContext() : generic_stream_(&server_context_) {} + + GenericServerContext server_context_; + GenericServerAsyncReaderWriter generic_stream_; +}; + +class Server::UnimplementedAsyncRequest GRPC_FINAL + : public UnimplementedAsyncRequestContext, + public GenericAsyncRequest { + public: + UnimplementedAsyncRequest(Server* server, ServerCompletionQueue* cq) + : GenericAsyncRequest(server, &server_context_, &generic_stream_, cq, cq, + NULL, false), + server_(server), + cq_(cq) {} + + bool FinalizeResult(void** tag, bool* status) GRPC_OVERRIDE; + + ServerContext* context() { return &server_context_; } + GenericServerAsyncReaderWriter* stream() { return &generic_stream_; } + + private: + Server* const server_; + ServerCompletionQueue* const cq_; +}; + +typedef SneakyCallOpSet<CallOpSendInitialMetadata, CallOpServerSendStatus> + UnimplementedAsyncResponseOp; +class Server::UnimplementedAsyncResponse GRPC_FINAL + : public UnimplementedAsyncResponseOp { + public: + UnimplementedAsyncResponse(UnimplementedAsyncRequest* request); + ~UnimplementedAsyncResponse() { delete request_; } + + bool FinalizeResult(void** tag, bool* status) GRPC_OVERRIDE { + bool r = UnimplementedAsyncResponseOp::FinalizeResult(tag, status); + delete this; + return r; + } + + private: + UnimplementedAsyncRequest* const request_; +}; + class Server::ShutdownRequest GRPC_FINAL : public CompletionQueueTag { public: bool FinalizeResult(void** tag, bool* status) { @@ -297,18 +343,23 @@ int Server::AddListeningPort(const grpc::string& addr, return creds->AddPortToServer(addr, server_); } -bool Server::Start() { +bool Server::Start(ServerCompletionQueue** cqs, size_t num_cqs) { GPR_ASSERT(!started_); started_ = true; grpc_server_start(server_); if (!has_generic_service_) { - unknown_method_.reset(new RpcServiceMethod( - "unknown", RpcMethod::BIDI_STREAMING, new UnknownMethodHandler)); - // Use of emplace_back with just constructor arguments is not accepted here - // by gcc-4.4 because it can't match the anonymous nullptr with a proper - // constructor implicitly. Construct the object and use push_back. - sync_methods_->push_back(SyncRequest(unknown_method_.get(), nullptr)); + if (!sync_methods_->empty()) { + unknown_method_.reset(new RpcServiceMethod( + "unknown", RpcMethod::BIDI_STREAMING, new UnknownMethodHandler)); + // Use of emplace_back with just constructor arguments is not accepted + // here by gcc-4.4 because it can't match the anonymous nullptr with a + // proper constructor implicitly. Construct the object and use push_back. + sync_methods_->push_back(SyncRequest(unknown_method_.get(), nullptr)); + } + for (size_t i = 0; i < num_cqs; i++) { + new UnimplementedAsyncRequest(this, cqs[i]); + } } // Start processing rpcs. if (!sync_methods_->empty()) { @@ -370,12 +421,14 @@ void Server::PerformOpsOnCall(CallOpSetInterface* ops, Call* call) { Server::BaseAsyncRequest::BaseAsyncRequest( Server* server, ServerContext* context, - ServerAsyncStreamingInterface* stream, CompletionQueue* call_cq, void* tag) + ServerAsyncStreamingInterface* stream, CompletionQueue* call_cq, void* tag, + bool delete_on_finalize) : server_(server), context_(context), stream_(stream), call_cq_(call_cq), tag_(tag), + delete_on_finalize_(delete_on_finalize), call_(nullptr) { memset(&initial_metadata_array_, 0, sizeof(initial_metadata_array_)); } @@ -402,14 +455,16 @@ bool Server::BaseAsyncRequest::FinalizeResult(void** tag, bool* status) { // just the pointers inside call are copied here stream_->BindCall(&call); *tag = tag_; - delete this; + if (delete_on_finalize_) { + delete this; + } return true; } Server::RegisteredAsyncRequest::RegisteredAsyncRequest( Server* server, ServerContext* context, ServerAsyncStreamingInterface* stream, CompletionQueue* call_cq, void* tag) - : BaseAsyncRequest(server, context, stream, call_cq, tag) {} + : BaseAsyncRequest(server, context, stream, call_cq, tag, true) {} void Server::RegisteredAsyncRequest::IssueRequest( void* registered_method, grpc_byte_buffer** payload, @@ -423,8 +478,9 @@ void Server::RegisteredAsyncRequest::IssueRequest( Server::GenericAsyncRequest::GenericAsyncRequest( Server* server, GenericServerContext* context, ServerAsyncStreamingInterface* stream, CompletionQueue* call_cq, - ServerCompletionQueue* notification_cq, void* tag) - : BaseAsyncRequest(server, context, stream, call_cq, tag) { + ServerCompletionQueue* notification_cq, void* tag, bool delete_on_finalize) + : BaseAsyncRequest(server, context, stream, call_cq, tag, + delete_on_finalize) { grpc_call_details_init(&call_details_); GPR_ASSERT(notification_cq); GPR_ASSERT(call_cq); @@ -445,6 +501,25 @@ bool Server::GenericAsyncRequest::FinalizeResult(void** tag, bool* status) { return BaseAsyncRequest::FinalizeResult(tag, status); } +bool Server::UnimplementedAsyncRequest::FinalizeResult(void** tag, + bool* status) { + if (GenericAsyncRequest::FinalizeResult(tag, status) && *status) { + new UnimplementedAsyncRequest(server_, cq_); + new UnimplementedAsyncResponse(this); + } else { + delete this; + } + return false; +} + +Server::UnimplementedAsyncResponse::UnimplementedAsyncResponse( + UnimplementedAsyncRequest* request) + : request_(request) { + Status status(StatusCode::UNIMPLEMENTED, ""); + UnknownMethodHandler::FillOps(request_->context(), this); + request_->stream()->call_.PerformOps(this); +} + void Server::ScheduleCallback() { { grpc::unique_lock<grpc::mutex> lock(mu_); diff --git a/src/cpp/server/server_builder.cc b/src/cpp/server/server_builder.cc index db13c84a2b..b739cbfe62 100644 --- a/src/cpp/server/server_builder.cc +++ b/src/cpp/server/server_builder.cc @@ -99,12 +99,6 @@ std::unique_ptr<Server> ServerBuilder::BuildAndStart() { thread_pool_ = CreateDefaultThreadPool(); thread_pool_owned = true; } - // Async services only, create a thread pool to handle requests to unknown - // services. - if (!thread_pool_ && !generic_service_ && !async_services_.empty()) { - thread_pool_ = new FixedSizeThreadPool(1); - thread_pool_owned = true; - } std::unique_ptr<Server> server( new Server(thread_pool_, thread_pool_owned, max_message_size_)); for (auto cq = cqs_.begin(); cq != cqs_.end(); ++cq) { @@ -134,7 +128,7 @@ std::unique_ptr<Server> ServerBuilder::BuildAndStart() { *port->selected_port = r; } } - if (!server->Start()) { + if (!server->Start(&cqs_[0], cqs_.size())) { return nullptr; } return server; diff --git a/src/python/grpcio/grpc/_adapter/_c/types.h b/src/python/grpcio/grpc/_adapter/_c/types.h index f646465c63..f6ff957baa 100644 --- a/src/python/grpcio/grpc/_adapter/_c/types.h +++ b/src/python/grpcio/grpc/_adapter/_c/types.h @@ -146,6 +146,7 @@ typedef struct Server { PyObject_HEAD grpc_server *c_serv; CompletionQueue *cq; + int shutdown_called; } Server; Server *pygrpc_Server_new(PyTypeObject *type, PyObject *args, PyObject *kwargs); void pygrpc_Server_dealloc(Server *self); @@ -156,6 +157,7 @@ PyObject *pygrpc_Server_add_http2_port( PyObject *pygrpc_Server_start(Server *self, PyObject *ignored); PyObject *pygrpc_Server_shutdown( Server *self, PyObject *args, PyObject *kwargs); +PyObject *pygrpc_Server_cancel_all_calls(Server *self, PyObject *unused); extern PyTypeObject pygrpc_Server_type; /*=========*/ diff --git a/src/python/grpcio/grpc/_adapter/_c/types/server.c b/src/python/grpcio/grpc/_adapter/_c/types/server.c index 15c98f28eb..8feab8aab1 100644 --- a/src/python/grpcio/grpc/_adapter/_c/types/server.c +++ b/src/python/grpcio/grpc/_adapter/_c/types/server.c @@ -45,6 +45,8 @@ PyMethodDef pygrpc_Server_methods[] = { METH_KEYWORDS, ""}, {"start", (PyCFunction)pygrpc_Server_start, METH_NOARGS, ""}, {"shutdown", (PyCFunction)pygrpc_Server_shutdown, METH_KEYWORDS, ""}, + {"cancel_all_calls", (PyCFunction)pygrpc_Server_cancel_all_calls, + METH_NOARGS, ""}, {NULL} }; const char pygrpc_Server_doc[] = "See grpc._adapter._types.Server."; @@ -109,6 +111,7 @@ Server *pygrpc_Server_new(PyTypeObject *type, PyObject *args, PyObject *kwargs) pygrpc_discard_channel_args(c_args); self->cq = cq; Py_INCREF(self->cq); + self->shutdown_called = 0; return self; } @@ -163,6 +166,7 @@ PyObject *pygrpc_Server_add_http2_port( PyObject *pygrpc_Server_start(Server *self, PyObject *ignored) { grpc_server_start(self->c_serv); + self->shutdown_called = 0; Py_RETURN_NONE; } @@ -176,5 +180,17 @@ PyObject *pygrpc_Server_shutdown( } tag = pygrpc_produce_server_shutdown_tag(user_tag); grpc_server_shutdown_and_notify(self->c_serv, self->cq->c_cq, tag); + self->shutdown_called = 1; + Py_RETURN_NONE; +} + +PyObject *pygrpc_Server_cancel_all_calls(Server *self, PyObject *unused) { + if (!self->shutdown_called) { + PyErr_SetString( + PyExc_RuntimeError, + "shutdown must have been called prior to calling cancel_all_calls!"); + return NULL; + } + grpc_server_cancel_all_calls(self->c_serv); Py_RETURN_NONE; } diff --git a/src/python/grpcio/grpc/_adapter/_low.py b/src/python/grpcio/grpc/_adapter/_low.py index 147086e725..3859ebb0e2 100644 --- a/src/python/grpcio/grpc/_adapter/_low.py +++ b/src/python/grpcio/grpc/_adapter/_low.py @@ -124,3 +124,6 @@ class Server(_types.Server): def request_call(self, completion_queue, tag): return self.server.request_call(completion_queue.completion_queue, tag) + + def cancel_all_calls(self): + return self.server.cancel_all_calls() diff --git a/src/python/grpcio/grpc/framework/interfaces/face/__init__.py b/src/python/grpcio/grpc/framework/interfaces/face/__init__.py new file mode 100644 index 0000000000..7086519106 --- /dev/null +++ b/src/python/grpcio/grpc/framework/interfaces/face/__init__.py @@ -0,0 +1,30 @@ +# 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. + + diff --git a/src/python/grpcio/grpc/framework/interfaces/face/face.py b/src/python/grpcio/grpc/framework/interfaces/face/face.py new file mode 100644 index 0000000000..948e7505b6 --- /dev/null +++ b/src/python/grpcio/grpc/framework/interfaces/face/face.py @@ -0,0 +1,933 @@ +# 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. + +"""Interfaces defining the Face layer of RPC Framework.""" + +import abc +import collections +import enum + +# cardinality, style, abandonment, future, and stream are +# referenced from specification in this module. +from grpc.framework.common import cardinality # pylint: disable=unused-import +from grpc.framework.common import style # pylint: disable=unused-import +from grpc.framework.foundation import abandonment # pylint: disable=unused-import +from grpc.framework.foundation import future # pylint: disable=unused-import +from grpc.framework.foundation import stream # pylint: disable=unused-import + + +class NoSuchMethodError(Exception): + """Raised by customer code to indicate an unrecognized method. + + Attributes: + group: The group of the unrecognized method. + name: The name of the unrecognized method. + """ + + def __init__(self, group, method): + """Constructor. + + Args: + group: The group identifier of the unrecognized RPC name. + method: The method identifier of the unrecognized RPC name. + """ + super(NoSuchMethodError, self).__init__() + self.group = group + self.method = method + + def __repr__(self): + return 'face.NoSuchMethodError(%s, %s)' % (self.group, self.method,) + + +class Abortion( + collections.namedtuple( + 'Abortion', + ('kind', 'initial_metadata', 'terminal_metadata', 'code', 'details',))): + """A value describing RPC abortion. + + Attributes: + kind: A Kind value identifying how the RPC failed. + initial_metadata: The initial metadata from the other side of the RPC or + None if no initial metadata value was received. + terminal_metadata: The terminal metadata from the other side of the RPC or + None if no terminal metadata value was received. + code: The code value from the other side of the RPC or None if no code value + was received. + details: The details value from the other side of the RPC or None if no + details value was received. + """ + + @enum.unique + class Kind(enum.Enum): + """Types of RPC abortion.""" + + CANCELLED = 'cancelled' + EXPIRED = 'expired' + LOCAL_SHUTDOWN = 'local shutdown' + REMOTE_SHUTDOWN = 'remote shutdown' + NETWORK_FAILURE = 'network failure' + LOCAL_FAILURE = 'local failure' + REMOTE_FAILURE = 'remote failure' + + +class AbortionError(Exception): + """Common super type for exceptions indicating RPC abortion. + + initial_metadata: The initial metadata from the other side of the RPC or + None if no initial metadata value was received. + terminal_metadata: The terminal metadata from the other side of the RPC or + None if no terminal metadata value was received. + code: The code value from the other side of the RPC or None if no code value + was received. + details: The details value from the other side of the RPC or None if no + details value was received. + """ + __metaclass__ = abc.ABCMeta + + def __init__(self, initial_metadata, terminal_metadata, code, details): + super(AbortionError, self).__init__() + self.initial_metadata = initial_metadata + self.terminal_metadata = terminal_metadata + self.code = code + self.details = details + + +class CancellationError(AbortionError): + """Indicates that an RPC has been cancelled.""" + + +class ExpirationError(AbortionError): + """Indicates that an RPC has expired ("timed out").""" + + +class LocalShutdownError(AbortionError): + """Indicates that an RPC has terminated due to local shutdown of RPCs.""" + + +class RemoteShutdownError(AbortionError): + """Indicates that an RPC has terminated due to remote shutdown of RPCs.""" + + +class NetworkError(AbortionError): + """Indicates that some error occurred on the network.""" + + +class LocalError(AbortionError): + """Indicates that an RPC has terminated due to a local defect.""" + + +class RemoteError(AbortionError): + """Indicates that an RPC has terminated due to a remote defect.""" + + +class RpcContext(object): + """Provides RPC-related information and action.""" + __metaclass__ = abc.ABCMeta + + @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. + """ + raise NotImplementedError() + + @abc.abstractmethod + def add_abortion_callback(self, abortion_callback): + """Registers a callback to be called if the RPC is aborted. + + Args: + abortion_callback: A callable to be called and passed an Abortion value + in the event of RPC abortion. + """ + raise NotImplementedError() + + @abc.abstractmethod + def cancel(self): + """Cancels the RPC. + + Idempotent and has no effect if the RPC has already terminated. + """ + raise NotImplementedError() + + +class Call(RpcContext): + """Invocation-side utility object for an RPC.""" + __metaclass__ = abc.ABCMeta + + @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 or is known not to have been + emitted from the service-side of the RPC. + + Returns: + The initial metadata object emitted by the service-side of the RPC, or + None if there was no such value. + """ + raise NotImplementedError() + + @abc.abstractmethod + def terminal_metadata(self): + """Accesses the terminal metadata from the service-side of the RPC. + + This method blocks until the value is available or is known not to have been + emitted from the service-side of the RPC. + + Returns: + The terminal metadata object emitted by the service-side of the RPC, or + None if there was no such value. + """ + raise NotImplementedError() + + @abc.abstractmethod + def code(self): + """Accesses the code emitted by the service-side of the RPC. + + This method blocks until the value is available or is known not to have been + emitted from the service-side of the RPC. + + Returns: + The code object emitted by the service-side of the RPC, or None if there + was no such value. + """ + 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 or is known not to have been + emitted from the service-side of the RPC. + + Returns: + The details value emitted by the service-side of the RPC, or None if there + was no such value. + """ + raise NotImplementedError() + + +class ServicerContext(RpcContext): + """A context object passed to method implementations.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def invocation_metadata(self): + """Accesses the metadata from the invocation-side of the RPC. + + This method blocks until the value is available or is known not to have been + emitted from the invocation-side of the RPC. + + Returns: + The metadata object emitted by the invocation-side of the RPC, or None if + there was no such value. + """ + raise NotImplementedError() + + @abc.abstractmethod + def initial_metadata(self, initial_metadata): + """Accepts the service-side initial metadata value 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 service-side initial metadata value of the RPC to + be transmitted to the invocation side of the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def terminal_metadata(self, terminal_metadata): + """Accepts the service-side terminal metadata value of the RPC. + + This method need not be called by method implementations if they have no + service-side terminal metadata to transmit. + + Args: + terminal_metadata: The service-side terminal metadata value of the RPC to + be transmitted to the invocation side of the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def code(self, code): + """Accepts the service-side code of the RPC. + + This method need not be called by method implementations if they have no + code to transmit. + + Args: + code: The code of the RPC to be transmitted to the invocation side of the + RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def details(self, details): + """Accepts the service-side details of the RPC. + + This method need not be called by method implementations if they have no + service-side details to transmit. + + Args: + details: The service-side details value of the RPC to be transmitted to + the invocation side of the RPC. + """ + raise NotImplementedError() + + +class ResponseReceiver(object): + """Invocation-side object used to accept the output of an RPC.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def initial_metadata(self, initial_metadata): + """Receives the initial metadata from the service-side of the RPC. + + Args: + initial_metadata: The initial metadata object emitted from the + service-side of the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def response(self, response): + """Receives a response from the service-side of the RPC. + + Args: + response: A response object emitted from the service-side of the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def complete(self, terminal_metadata, code, details): + """Receives the completion values emitted from the service-side of the RPC. + + Args: + terminal_metadata: The terminal metadata object emitted from the + service-side of the RPC. + code: The code object emitted from the service-side of the RPC. + details: The details object emitted from the service-side of the RPC. + """ + raise NotImplementedError() + + +class UnaryUnaryMultiCallable(object): + """Affords invoking a unary-unary RPC in any call style.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def __call__( + self, request, timeout, metadata=None, with_call=False): + """Synchronously invokes the underlying RPC. + + Args: + request: The request value for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of + the RPC. + with_call: Whether or not to include return a Call for the RPC in addition + to the reponse. + + Returns: + The response value for the RPC, and a Call for the RPC if with_call was + set to True at invocation. + + Raises: + AbortionError: Indicating that the RPC was aborted. + """ + raise NotImplementedError() + + @abc.abstractmethod + def future(self, request, timeout, metadata=None): + """Asynchronously invokes the underlying RPC. + + Args: + request: The request value for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of + the RPC. + + Returns: + An object that is both a Call for the RPC and a future.Future. In the + event of RPC completion, the return Future's result value will be the + response value of the RPC. In the event of RPC abortion, the returned + Future's exception value will be an AbortionError. + """ + raise NotImplementedError() + + @abc.abstractmethod + def event( + self, request, receiver, abortion_callback, timeout, + metadata=None): + """Asynchronously invokes the underlying RPC. + + Args: + request: The request value for the RPC. + receiver: A ResponseReceiver to be passed the response data of the RPC. + abortion_callback: A callback to be called and passed an Abortion value + in the event of RPC abortion. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of + the RPC. + + Returns: + A Call for the RPC. + """ + raise NotImplementedError() + + +class UnaryStreamMultiCallable(object): + """Affords invoking a unary-stream RPC in any call style.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def __call__(self, request, timeout, metadata=None): + """Invokes the underlying RPC. + + Args: + request: The request value for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of + 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 + AbortionError indicating abortion of the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def event( + self, request, receiver, abortion_callback, timeout, + metadata=None): + """Asynchronously invokes the underlying RPC. + + Args: + request: The request value for the RPC. + receiver: A ResponseReceiver to be passed the response data of the RPC. + abortion_callback: A callback to be called and passed an Abortion value + in the event of RPC abortion. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of + the RPC. + + Returns: + A Call object for the RPC. + """ + raise NotImplementedError() + + +class StreamUnaryMultiCallable(object): + """Affords invoking a stream-unary RPC in any call style.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def __call__( + self, request_iterator, timeout, metadata=None, + with_call=False): + """Synchronously invokes the underlying RPC. + + Args: + request_iterator: An iterator that yields request values for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of + the RPC. + with_call: Whether or not to include return a Call for the RPC in addition + to the reponse. + + Returns: + The response value for the RPC, and a Call for the RPC if with_call was + set to True at invocation. + + Raises: + AbortionError: Indicating that the RPC was aborted. + """ + raise NotImplementedError() + + @abc.abstractmethod + def future(self, request_iterator, timeout, metadata=None): + """Asynchronously invokes the underlying RPC. + + Args: + request_iterator: An iterator that yields request values for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of + the RPC. + + Returns: + An object that is both a Call for the RPC and a future.Future. In the + event of RPC completion, the return Future's result value will be the + response value of the RPC. In the event of RPC abortion, the returned + Future's exception value will be an AbortionError. + """ + raise NotImplementedError() + + @abc.abstractmethod + def event( + self, receiver, abortion_callback, timeout, metadata=None): + """Asynchronously invokes the underlying RPC. + + Args: + receiver: A ResponseReceiver to be passed the response data of the RPC. + abortion_callback: A callback to be called and passed an Abortion value + in the event of RPC abortion. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of + the RPC. + + Returns: + A single object that is both a Call object for the RPC and a + stream.Consumer to which the request values of the RPC should be passed. + """ + raise NotImplementedError() + + +class StreamStreamMultiCallable(object): + """Affords invoking a stream-stream RPC in any call style.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def __call__(self, request_iterator, timeout, metadata=None): + """Invokes the underlying RPC. + + Args: + request_iterator: An iterator that yields request values for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of + 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 + AbortionError indicating abortion of the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def event( + self, receiver, abortion_callback, timeout, metadata=None): + """Asynchronously invokes the underlying RPC. + + Args: + receiver: A ResponseReceiver to be passed the response data of the RPC. + abortion_callback: A callback to be called and passed an Abortion value + in the event of RPC abortion. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of + the RPC. + + Returns: + A single object that is both a Call object for the RPC and a + stream.Consumer to which the request values of the RPC should be passed. + """ + raise NotImplementedError() + + +class MethodImplementation(object): + """A sum type that describes a method implementation. + + Attributes: + cardinality: A cardinality.Cardinality value. + style: A style.Service value. + unary_unary_inline: The implementation of the method as a callable value + that takes a request value and a ServicerContext object and returns a + response value. Only non-None if cardinality is + cardinality.Cardinality.UNARY_UNARY and style is style.Service.INLINE. + unary_stream_inline: The implementation of the method as a callable value + that takes a request value and a ServicerContext object and returns an + iterator of response values. Only non-None if cardinality is + cardinality.Cardinality.UNARY_STREAM and style is style.Service.INLINE. + stream_unary_inline: The implementation of the method as a callable value + that takes an iterator of request values and a ServicerContext object and + returns a response value. Only non-None if cardinality is + cardinality.Cardinality.STREAM_UNARY and style is style.Service.INLINE. + stream_stream_inline: The implementation of the method 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 cardinality is + cardinality.Cardinality.STREAM_STREAM and style is style.Service.INLINE. + unary_unary_event: The implementation of the method as a callable value that + takes a request value, a response callback to which to pass the response + value of the RPC, and a ServicerContext. Only non-None if cardinality is + cardinality.Cardinality.UNARY_UNARY and style is style.Service.EVENT. + unary_stream_event: The implementation of the method as a callable value + that takes a request value, a stream.Consumer to which to pass the + response values of the RPC, and a ServicerContext. Only non-None if + cardinality is cardinality.Cardinality.UNARY_STREAM and style is + style.Service.EVENT. + stream_unary_event: The implementation of the method as a callable value + that takes a response callback to which to pass the response value of the + RPC and a ServicerContext and returns a stream.Consumer to which the + request values of the RPC should be passed. Only non-None if cardinality + is cardinality.Cardinality.STREAM_UNARY and style is style.Service.EVENT. + stream_stream_event: The implementation of the method as a callable value + that takes a stream.Consumer to which to pass the response values of the + RPC and a ServicerContext and returns a stream.Consumer to which the + request values of the RPC should be passed. Only non-None if cardinality + is cardinality.Cardinality.STREAM_STREAM and style is + style.Service.EVENT. + """ + __metaclass__ = abc.ABCMeta + + +class MultiMethodImplementation(object): + """A general type able to service many methods.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def service(self, group, method, response_consumer, context): + """Services an RPC. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + response_consumer: A stream.Consumer to be called to accept the response + values of the RPC. + context: a ServicerContext object. + + Returns: + A stream.Consumer with which to accept the request values of the RPC. The + consumer returned from this method may or may not be invoked to + completion: in the case of RPC abortion, RPC Framework will simply stop + passing values to this object. Implementations must not assume that this + object will be called to completion of the request stream or even called + at all. + + Raises: + abandonment.Abandoned: May or may not be raised when the RPC has been + aborted. + NoSuchMethodError: If this MultiMethod does not recognize the given group + and name for the RPC and is not able to service the RPC. + """ + raise NotImplementedError() + + +class GenericStub(object): + """Affords RPC invocation via generic methods.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def blocking_unary_unary( + self, group, method, request, timeout, metadata=None, + with_call=False): + """Invokes a unary-request-unary-response method. + + This method blocks until either returning the response value of the RPC + (in the event of RPC completion) or raising an exception (in the event of + RPC abortion). + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + request: The request value for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of the RPC. + with_call: Whether or not to include return a Call for the RPC in addition + to the reponse. + + Returns: + The response value for the RPC, and a Call for the RPC if with_call was + set to True at invocation. + + Raises: + AbortionError: Indicating that the RPC was aborted. + """ + raise NotImplementedError() + + @abc.abstractmethod + def future_unary_unary( + self, group, method, request, timeout, metadata=None): + """Invokes a unary-request-unary-response method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + request: The request value for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of the RPC. + + Returns: + An object that is both a Call for the RPC and a future.Future. In the + event of RPC completion, the return Future's result value will be the + response value of the RPC. In the event of RPC abortion, the returned + Future's exception value will be an AbortionError. + """ + raise NotImplementedError() + + @abc.abstractmethod + def inline_unary_stream( + self, group, method, request, timeout, metadata=None): + """Invokes a unary-request-stream-response method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + request: The request value for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of 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 + AbortionError indicating abortion of the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def blocking_stream_unary( + self, group, method, request_iterator, timeout, metadata=None, + with_call=False): + """Invokes a stream-request-unary-response method. + + This method blocks until either returning the response value of the RPC + (in the event of RPC completion) or raising an exception (in the event of + RPC abortion). + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + request_iterator: An iterator that yields request values for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of the RPC. + with_call: Whether or not to include return a Call for the RPC in addition + to the reponse. + + Returns: + The response value for the RPC, and a Call for the RPC if with_call was + set to True at invocation. + + Raises: + AbortionError: Indicating that the RPC was aborted. + """ + raise NotImplementedError() + + @abc.abstractmethod + def future_stream_unary( + self, group, method, request_iterator, timeout, metadata=None): + """Invokes a stream-request-unary-response method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + request_iterator: An iterator that yields request values for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of the RPC. + + Returns: + An object that is both a Call for the RPC and a future.Future. In the + event of RPC completion, the return Future's result value will be the + response value of the RPC. In the event of RPC abortion, the returned + Future's exception value will be an AbortionError. + """ + raise NotImplementedError() + + @abc.abstractmethod + def inline_stream_stream( + self, group, method, request_iterator, timeout, metadata=None): + """Invokes a stream-request-stream-response method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + request_iterator: An iterator that yields request values for the RPC. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of 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 + AbortionError indicating abortion of the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def event_unary_unary( + self, group, method, request, receiver, abortion_callback, timeout, + metadata=None): + """Event-driven invocation of a unary-request-unary-response method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + request: The request value for the RPC. + receiver: A ResponseReceiver to be passed the response data of the RPC. + abortion_callback: A callback to be called and passed an Abortion value + in the event of RPC abortion. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of the RPC. + + Returns: + A Call for the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def event_unary_stream( + self, group, method, request, receiver, abortion_callback, timeout, + metadata=None): + """Event-driven invocation of a unary-request-stream-response method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + request: The request value for the RPC. + receiver: A ResponseReceiver to be passed the response data of the RPC. + abortion_callback: A callback to be called and passed an Abortion value + in the event of RPC abortion. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of the RPC. + + Returns: + A Call for the RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def event_stream_unary( + self, group, method, receiver, abortion_callback, timeout, + metadata=None): + """Event-driven invocation of a unary-request-unary-response method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + receiver: A ResponseReceiver to be passed the response data of the RPC. + abortion_callback: A callback to be called and passed an Abortion value + in the event of RPC abortion. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of the RPC. + + Returns: + A pair of a Call object for the RPC and a stream.Consumer to which the + request values of the RPC should be passed. + """ + raise NotImplementedError() + + @abc.abstractmethod + def event_stream_stream( + self, group, method, receiver, abortion_callback, timeout, + metadata=None): + """Event-driven invocation of a unary-request-stream-response method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + receiver: A ResponseReceiver to be passed the response data of the RPC. + abortion_callback: A callback to be called and passed an Abortion value + in the event of RPC abortion. + timeout: A duration of time in seconds to allow for the RPC. + metadata: A metadata value to be passed to the service-side of the RPC. + + Returns: + A pair of a Call object for the RPC and a stream.Consumer to which the + request values of the RPC should be passed. + """ + raise NotImplementedError() + + @abc.abstractmethod + def unary_unary(self, group, method): + """Creates a UnaryUnaryMultiCallable for a unary-unary method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + + Returns: + A UnaryUnaryMultiCallable value for the named unary-unary method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def unary_stream(self, group, method): + """Creates a UnaryStreamMultiCallable for a unary-stream method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + + Returns: + A UnaryStreamMultiCallable value for the name unary-stream method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def stream_unary(self, group, method): + """Creates a StreamUnaryMultiCallable for a stream-unary method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + + Returns: + A StreamUnaryMultiCallable value for the named stream-unary method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def stream_stream(self, group, method): + """Creates a StreamStreamMultiCallable for a stream-stream method. + + Args: + group: The group identifier of the RPC. + method: The method identifier of the RPC. + + Returns: + A StreamStreamMultiCallable value for the named stream-stream method. + """ + raise NotImplementedError() + + +class DynamicStub(object): + """Affords RPC invocation via attributes corresponding to afforded methods. + + Instances of this type may be scoped to a single group so that attribute + access is unambiguous. + + Instances of this type respond to attribute access as follows: if the + requested attribute is the name of a unary-unary method, the value of the + attribute will be a UnaryUnaryMultiCallable with which to invoke an RPC; if + the requested attribute is the name of a unary-stream method, the value of the + attribute will be a UnaryStreamMultiCallable with which to invoke an RPC; if + the requested attribute is the name of a stream-unary method, the value of the + attribute will be a StreamUnaryMultiCallable with which to invoke an RPC; and + if the requested attribute is the name of a stream-stream method, the value of + the attribute will be a StreamStreamMultiCallable with which to invoke an RPC. + """ + __metaclass__ = abc.ABCMeta diff --git a/src/python/grpcio/grpc/framework/interfaces/face/utilities.py b/src/python/grpcio/grpc/framework/interfaces/face/utilities.py new file mode 100644 index 0000000000..db2ec6ed87 --- /dev/null +++ b/src/python/grpcio/grpc/framework/interfaces/face/utilities.py @@ -0,0 +1,178 @@ +# 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. + +"""Utilities for RPC Framework's Face interface.""" + +import collections + +# stream is referenced from specification in this module. +from grpc.framework.common import cardinality +from grpc.framework.common import style +from grpc.framework.foundation import stream # pylint: disable=unused-import +from grpc.framework.interfaces.face import face + + +class _MethodImplementation( + face.MethodImplementation, + collections.namedtuple( + '_MethodImplementation', + ['cardinality', 'style', 'unary_unary_inline', 'unary_stream_inline', + 'stream_unary_inline', 'stream_stream_inline', 'unary_unary_event', + 'unary_stream_event', 'stream_unary_event', 'stream_stream_event',])): + pass + + +def unary_unary_inline(behavior): + """Creates an face.MethodImplementation for the given behavior. + + Args: + behavior: The implementation of a unary-unary RPC method as a callable value + that takes a request value and an face.ServicerContext object and + returns a response value. + + Returns: + An face.MethodImplementation derived from the given behavior. + """ + return _MethodImplementation( + cardinality.Cardinality.UNARY_UNARY, style.Service.INLINE, behavior, + None, None, None, None, None, None, None) + + +def unary_stream_inline(behavior): + """Creates an face.MethodImplementation for the given behavior. + + Args: + behavior: The implementation of a unary-stream RPC method as a callable + value that takes a request value and an face.ServicerContext object and + returns an iterator of response values. + + Returns: + An face.MethodImplementation derived from the given behavior. + """ + return _MethodImplementation( + cardinality.Cardinality.UNARY_STREAM, style.Service.INLINE, None, + behavior, None, None, None, None, None, None) + + +def stream_unary_inline(behavior): + """Creates an face.MethodImplementation for the given behavior. + + Args: + behavior: The implementation of a stream-unary RPC method as a callable + value that takes an iterator of request values and an + face.ServicerContext object and returns a response value. + + Returns: + An face.MethodImplementation derived from the given behavior. + """ + return _MethodImplementation( + cardinality.Cardinality.STREAM_UNARY, style.Service.INLINE, None, None, + behavior, None, None, None, None, None) + + +def stream_stream_inline(behavior): + """Creates an face.MethodImplementation for the given behavior. + + Args: + behavior: The implementation of a stream-stream RPC method as a callable + value that takes an iterator of request values and an + face.ServicerContext object and returns an iterator of response values. + + Returns: + An face.MethodImplementation derived from the given behavior. + """ + return _MethodImplementation( + cardinality.Cardinality.STREAM_STREAM, style.Service.INLINE, None, None, + None, behavior, None, None, None, None) + + +def unary_unary_event(behavior): + """Creates an face.MethodImplementation for the given behavior. + + Args: + behavior: The implementation of a unary-unary RPC method as a callable + value that takes a request value, a response callback to which to pass + the response value of the RPC, and an face.ServicerContext. + + Returns: + An face.MethodImplementation derived from the given behavior. + """ + return _MethodImplementation( + cardinality.Cardinality.UNARY_UNARY, style.Service.EVENT, None, None, + None, None, behavior, None, None, None) + + +def unary_stream_event(behavior): + """Creates an face.MethodImplementation for the given behavior. + + Args: + behavior: The implementation of a unary-stream RPC method as a callable + value that takes a request value, a stream.Consumer to which to pass the + the response values of the RPC, and an face.ServicerContext. + + Returns: + An face.MethodImplementation derived from the given behavior. + """ + return _MethodImplementation( + cardinality.Cardinality.UNARY_STREAM, style.Service.EVENT, None, None, + None, None, None, behavior, None, None) + + +def stream_unary_event(behavior): + """Creates an face.MethodImplementation for the given behavior. + + Args: + behavior: The implementation of a stream-unary RPC method as a callable + value that takes a response callback to which to pass the response value + of the RPC and an face.ServicerContext and returns a stream.Consumer to + which the request values of the RPC should be passed. + + Returns: + An face.MethodImplementation derived from the given behavior. + """ + return _MethodImplementation( + cardinality.Cardinality.STREAM_UNARY, style.Service.EVENT, None, None, + None, None, None, None, behavior, None) + + +def stream_stream_event(behavior): + """Creates an face.MethodImplementation for the given behavior. + + Args: + behavior: The implementation of a stream-stream RPC method as a callable + value that takes a stream.Consumer to which to pass the response values + of the RPC and an face.ServicerContext and returns a stream.Consumer to + which the request values of the RPC should be passed. + + Returns: + An face.MethodImplementation derived from the given behavior. + """ + return _MethodImplementation( + cardinality.Cardinality.STREAM_STREAM, style.Service.EVENT, None, None, + None, None, None, None, None, behavior) diff --git a/src/python/grpcio_test/grpc_test/_adapter/_low_test.py b/src/python/grpcio_test/grpc_test/_adapter/_low_test.py index 44fe760fbc..70149127da 100644 --- a/src/python/grpcio_test/grpc_test/_adapter/_low_test.py +++ b/src/python/grpcio_test/grpc_test/_adapter/_low_test.py @@ -52,7 +52,6 @@ def wait_for_events(completion_queues, deadline): def set_ith_result(i, completion_queue): result = completion_queue.next(deadline) with lock: - print i, completion_queue, result, time.time() - deadline results[i] = result for i, completion_queue in enumerate(completion_queues): thread = threading.Thread(target=set_ith_result, @@ -80,10 +79,12 @@ class InsecureServerInsecureClient(unittest.TestCase): del self.client_channel self.client_completion_queue.shutdown() - while self.client_completion_queue.next().type != _types.EventType.QUEUE_SHUTDOWN: + while (self.client_completion_queue.next().type != + _types.EventType.QUEUE_SHUTDOWN): pass self.server_completion_queue.shutdown() - while self.server_completion_queue.next().type != _types.EventType.QUEUE_SHUTDOWN: + while (self.server_completion_queue.next().type != + _types.EventType.QUEUE_SHUTDOWN): pass del self.client_completion_queue @@ -91,58 +92,68 @@ class InsecureServerInsecureClient(unittest.TestCase): del self.server def testEcho(self): - DEADLINE = time.time()+5 - DEADLINE_TOLERANCE = 0.25 - CLIENT_METADATA_ASCII_KEY = 'key' - CLIENT_METADATA_ASCII_VALUE = 'val' - CLIENT_METADATA_BIN_KEY = 'key-bin' - CLIENT_METADATA_BIN_VALUE = b'\0'*1000 - SERVER_INITIAL_METADATA_KEY = 'init_me_me_me' - SERVER_INITIAL_METADATA_VALUE = 'whodawha?' - SERVER_TRAILING_METADATA_KEY = 'california_is_in_a_drought' - SERVER_TRAILING_METADATA_VALUE = 'zomg it is' - SERVER_STATUS_CODE = _types.StatusCode.OK - SERVER_STATUS_DETAILS = 'our work is never over' - REQUEST = 'in death a member of project mayhem has a name' - RESPONSE = 'his name is robert paulson' - METHOD = 'twinkies' - HOST = 'hostess' + deadline = time.time() + 5 + event_time_tolerance = 2 + deadline_tolerance = 0.25 + client_metadata_ascii_key = 'key' + client_metadata_ascii_value = 'val' + client_metadata_bin_key = 'key-bin' + client_metadata_bin_value = b'\0'*1000 + server_initial_metadata_key = 'init_me_me_me' + server_initial_metadata_value = 'whodawha?' + server_trailing_metadata_key = 'california_is_in_a_drought' + server_trailing_metadata_value = 'zomg it is' + server_status_code = _types.StatusCode.OK + server_status_details = 'our work is never over' + request = 'blarghaflargh' + response = 'his name is robert paulson' + method = 'twinkies' + host = 'hostess' server_request_tag = object() - request_call_result = self.server.request_call(self.server_completion_queue, server_request_tag) + request_call_result = self.server.request_call(self.server_completion_queue, + server_request_tag) - self.assertEquals(_types.CallError.OK, request_call_result) + self.assertEqual(_types.CallError.OK, request_call_result) client_call_tag = object() - client_call = self.client_channel.create_call(self.client_completion_queue, METHOD, HOST, DEADLINE) - client_initial_metadata = [(CLIENT_METADATA_ASCII_KEY, CLIENT_METADATA_ASCII_VALUE), (CLIENT_METADATA_BIN_KEY, CLIENT_METADATA_BIN_VALUE)] + client_call = self.client_channel.create_call( + self.client_completion_queue, method, host, deadline) + client_initial_metadata = [ + (client_metadata_ascii_key, client_metadata_ascii_value), + (client_metadata_bin_key, client_metadata_bin_value) + ] client_start_batch_result = client_call.start_batch([ _types.OpArgs.send_initial_metadata(client_initial_metadata), - _types.OpArgs.send_message(REQUEST, 0), + _types.OpArgs.send_message(request, 0), _types.OpArgs.send_close_from_client(), _types.OpArgs.recv_initial_metadata(), _types.OpArgs.recv_message(), _types.OpArgs.recv_status_on_client() ], client_call_tag) - self.assertEquals(_types.CallError.OK, client_start_batch_result) + self.assertEqual(_types.CallError.OK, client_start_batch_result) - client_no_event, request_event, = wait_for_events([self.client_completion_queue, self.server_completion_queue], time.time() + 2) - self.assertEquals(client_no_event, None) - self.assertEquals(_types.EventType.OP_COMPLETE, request_event.type) + client_no_event, request_event, = wait_for_events( + [self.client_completion_queue, self.server_completion_queue], + time.time() + event_time_tolerance) + self.assertEqual(client_no_event, None) + self.assertEqual(_types.EventType.OP_COMPLETE, request_event.type) self.assertIsInstance(request_event.call, _low.Call) self.assertIs(server_request_tag, request_event.tag) - self.assertEquals(1, len(request_event.results)) + self.assertEqual(1, len(request_event.results)) received_initial_metadata = dict(request_event.results[0].initial_metadata) # Check that our metadata were transmitted - self.assertEquals( + self.assertEqual( dict(client_initial_metadata), - dict((x, received_initial_metadata[x]) for x in zip(*client_initial_metadata)[0])) + dict((x, received_initial_metadata[x]) + for x in zip(*client_initial_metadata)[0])) # Check that Python's user agent string is a part of the full user agent # string self.assertIn('Python-gRPC-{}'.format(_grpcio_metadata.__version__), received_initial_metadata['user-agent']) - self.assertEquals(METHOD, request_event.call_details.method) - self.assertEquals(HOST, request_event.call_details.host) - self.assertLess(abs(DEADLINE - request_event.call_details.deadline), DEADLINE_TOLERANCE) + self.assertEqual(method, request_event.call_details.method) + self.assertEqual(host, request_event.call_details.host) + self.assertLess(abs(deadline - request_event.call_details.deadline), + deadline_tolerance) # Check that the channel is connected, and that both it and the call have # the proper target and peer; do this after the first flurry of messages to @@ -155,33 +166,43 @@ class InsecureServerInsecureClient(unittest.TestCase): server_call_tag = object() server_call = request_event.call - server_initial_metadata = [(SERVER_INITIAL_METADATA_KEY, SERVER_INITIAL_METADATA_VALUE)] - server_trailing_metadata = [(SERVER_TRAILING_METADATA_KEY, SERVER_TRAILING_METADATA_VALUE)] + server_initial_metadata = [ + (server_initial_metadata_key, server_initial_metadata_value) + ] + server_trailing_metadata = [ + (server_trailing_metadata_key, server_trailing_metadata_value) + ] server_start_batch_result = server_call.start_batch([ _types.OpArgs.send_initial_metadata(server_initial_metadata), _types.OpArgs.recv_message(), - _types.OpArgs.send_message(RESPONSE, 0), + _types.OpArgs.send_message(response, 0), _types.OpArgs.recv_close_on_server(), - _types.OpArgs.send_status_from_server(server_trailing_metadata, SERVER_STATUS_CODE, SERVER_STATUS_DETAILS) + _types.OpArgs.send_status_from_server( + server_trailing_metadata, server_status_code, server_status_details) ], server_call_tag) - self.assertEquals(_types.CallError.OK, server_start_batch_result) + self.assertEqual(_types.CallError.OK, server_start_batch_result) - client_event, server_event, = wait_for_events([self.client_completion_queue, self.server_completion_queue], time.time() + 1) + client_event, server_event, = wait_for_events( + [self.client_completion_queue, self.server_completion_queue], + time.time() + event_time_tolerance) - self.assertEquals(6, len(client_event.results)) + self.assertEqual(6, len(client_event.results)) found_client_op_types = set() for client_result in client_event.results: - self.assertNotIn(client_result.type, found_client_op_types) # we expect each op type to be unique + # 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 == _types.OpType.RECV_INITIAL_METADATA: - self.assertEquals(dict(server_initial_metadata), dict(client_result.initial_metadata)) + self.assertEqual(dict(server_initial_metadata), + dict(client_result.initial_metadata)) elif client_result.type == _types.OpType.RECV_MESSAGE: - self.assertEquals(RESPONSE, client_result.message) + self.assertEqual(response, client_result.message) elif client_result.type == _types.OpType.RECV_STATUS_ON_CLIENT: - self.assertEquals(dict(server_trailing_metadata), dict(client_result.trailing_metadata)) - self.assertEquals(SERVER_STATUS_DETAILS, client_result.status.details) - self.assertEquals(SERVER_STATUS_CODE, client_result.status.code) - self.assertEquals(set([ + self.assertEqual(dict(server_trailing_metadata), + dict(client_result.trailing_metadata)) + self.assertEqual(server_status_details, client_result.status.details) + self.assertEqual(server_status_code, client_result.status.code) + self.assertEqual(set([ _types.OpType.SEND_INITIAL_METADATA, _types.OpType.SEND_MESSAGE, _types.OpType.SEND_CLOSE_FROM_CLIENT, @@ -190,16 +211,16 @@ class InsecureServerInsecureClient(unittest.TestCase): _types.OpType.RECV_STATUS_ON_CLIENT ]), found_client_op_types) - self.assertEquals(5, len(server_event.results)) + self.assertEqual(5, len(server_event.results)) found_server_op_types = set() for server_result in server_event.results: 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.assertEquals(REQUEST, server_result.message) + self.assertEqual(request, server_result.message) elif server_result.type == _types.OpType.RECV_CLOSE_ON_SERVER: self.assertFalse(server_result.cancelled) - self.assertEquals(set([ + self.assertEqual(set([ _types.OpType.SEND_INITIAL_METADATA, _types.OpType.RECV_MESSAGE, _types.OpType.SEND_MESSAGE, @@ -211,5 +232,81 @@ class InsecureServerInsecureClient(unittest.TestCase): del server_call +class HangingServerShutdown(unittest.TestCase): + + def setUp(self): + self.server_completion_queue = _low.CompletionQueue() + self.server = _low.Server(self.server_completion_queue, []) + self.port = self.server.add_http2_port('[::]:0') + self.client_completion_queue = _low.CompletionQueue() + self.client_channel = _low.Channel('localhost:%d'%self.port, []) + + self.server.start() + + def tearDown(self): + self.server.shutdown() + del self.client_channel + + self.client_completion_queue.shutdown() + self.server_completion_queue.shutdown() + while True: + client_event, server_event = wait_for_events( + [self.client_completion_queue, self.server_completion_queue], + float("+inf")) + if (client_event.type == _types.EventType.QUEUE_SHUTDOWN and + server_event.type == _types.EventType.QUEUE_SHUTDOWN): + break + + del self.client_completion_queue + del self.server_completion_queue + del self.server + + def testHangingServerCall(self): + deadline = time.time() + 5 + deadline_tolerance = 0.25 + event_time_tolerance = 2 + cancel_all_calls_time_tolerance = 0.5 + request = 'blarghaflargh' + method = 'twinkies' + host = 'hostess' + server_request_tag = object() + request_call_result = self.server.request_call(self.server_completion_queue, + server_request_tag) + + client_call_tag = object() + client_call = self.client_channel.create_call(self.client_completion_queue, + method, host, deadline) + client_start_batch_result = client_call.start_batch([ + _types.OpArgs.send_initial_metadata([]), + _types.OpArgs.send_message(request, 0), + _types.OpArgs.send_close_from_client(), + _types.OpArgs.recv_initial_metadata(), + _types.OpArgs.recv_message(), + _types.OpArgs.recv_status_on_client() + ], client_call_tag) + + client_no_event, request_event, = wait_for_events( + [self.client_completion_queue, self.server_completion_queue], + time.time() + event_time_tolerance) + + # Now try to shutdown the server and expect that we see server shutdown + # almost immediately after calling cancel_all_calls. + with self.assertRaises(RuntimeError): + self.server.cancel_all_calls() + shutdown_tag = object() + self.server.shutdown(shutdown_tag) + pre_cancel_timestamp = time.time() + self.server.cancel_all_calls() + finish_shutdown_timestamp = None + client_call_event, server_shutdown_event = wait_for_events( + [self.client_completion_queue, self.server_completion_queue], + time.time() + event_time_tolerance) + self.assertIs(shutdown_tag, server_shutdown_event.tag) + self.assertGreater(pre_cancel_timestamp + cancel_all_calls_time_tolerance, + time.time()) + + del client_call + + if __name__ == '__main__': unittest.main(verbosity=2) |