mirror of https://github.com/grpc/grpc.git
Merge pull request #16414 from vjpai/core_callback_test
Add an inproc-based non-polling end2end test of core callback APIpull/16453/head
Vijay Pai
6 years ago
committed by
GitHub
commit
53b92dc094
7 changed files with 634 additions and 0 deletions
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/*
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* |
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* Copyright 2018 gRPC authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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#include "test/core/end2end/end2end_tests.h" |
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#include <string.h> |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/log.h> |
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#include <grpc/support/sync.h> |
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#include "src/core/ext/transport/inproc/inproc_transport.h" |
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#include "src/core/lib/surface/channel.h" |
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#include "src/core/lib/surface/completion_queue.h" |
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#include "src/core/lib/surface/server.h" |
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#include "test/core/util/port.h" |
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#include "test/core/util/test_config.h" |
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typedef struct inproc_fixture_data { |
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bool dummy; // reserved for future expansion. Struct can't be empty
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} inproc_fixture_data; |
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namespace { |
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template <typename F> |
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class CQDeletingCallback : public grpc_core::CQCallbackInterface { |
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public: |
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explicit CQDeletingCallback(F f) : func_(f) {} |
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~CQDeletingCallback() override {} |
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void Run(bool ok) override { |
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func_(ok); |
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grpc_core::Delete(this); |
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} |
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private: |
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F func_; |
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}; |
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template <typename F> |
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grpc_core::CQCallbackInterface* NewDeletingCallback(F f) { |
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return grpc_core::New<CQDeletingCallback<F>>(f); |
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} |
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class ShutdownCallback : public grpc_core::CQCallbackInterface { |
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public: |
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ShutdownCallback() : done_(false) { |
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gpr_mu_init(&mu_); |
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gpr_cv_init(&cv_); |
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} |
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~ShutdownCallback() override {} |
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void Run(bool ok) override { |
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gpr_log(GPR_DEBUG, "CQ shutdown notification invoked"); |
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gpr_mu_lock(&mu_); |
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done_ = true; |
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gpr_cv_broadcast(&cv_); |
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gpr_mu_unlock(&mu_); |
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} |
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// The Wait function waits for a specified amount of
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// time for the completion of the shutdown and returns
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// whether it was successfully shut down
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bool Wait(gpr_timespec deadline) { |
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gpr_mu_lock(&mu_); |
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while (!done_ && !gpr_cv_wait(&cv_, &mu_, deadline)) { |
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} |
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bool ret = done_; |
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gpr_mu_unlock(&mu_); |
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return ret; |
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} |
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private: |
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bool done_; |
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gpr_mu mu_; |
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gpr_cv cv_; |
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}; |
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ShutdownCallback* g_shutdown_callback; |
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} // namespace
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// The following global structure is the tag collection. It holds
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// all information related to tags expected and tags received
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// during the execution, with each callback setting a tag.
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// The tag sets are implemented and checked using arrays and
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// linear lookups (rather than maps) so that this test doesn't
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// need the C++ standard library.
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static gpr_mu tags_mu; |
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static gpr_cv tags_cv; |
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const size_t kAvailableTags = 4; |
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bool tags[kAvailableTags]; |
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bool tags_valid[kAvailableTags]; |
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bool tags_expected[kAvailableTags]; |
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bool tags_needed[kAvailableTags]; |
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// Mark that a tag is expected; this function must be executed in the
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// main thread only while there are no other threads altering the
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// expectation set (e.g., by calling expect_tag or verify_tags)
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static void expect_tag(intptr_t tag, bool ok) { |
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size_t idx = static_cast<size_t>(tag); |
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GPR_ASSERT(idx < kAvailableTags); |
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tags_needed[idx] = true; |
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tags_expected[idx] = ok; |
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} |
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// Check that the expected tags have reached, within a certain
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// deadline. This must also be executed only on the main thread while
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// there are no other threads altering the expectation set (e.g., by
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// calling expect_tag or verify_tags). The tag verifier doesn't have
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// to drive the CQ at all (unlike the next-based end2end tests)
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// because the tags will get set when the callbacks are executed,
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// which happens when a particular batch related to a callback is
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// complete.
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static void verify_tags(gpr_timespec deadline) { |
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bool done = false; |
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gpr_mu_lock(&tags_mu); |
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while (!done) { |
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done = gpr_time_cmp(gpr_now(GPR_CLOCK_MONOTONIC), deadline) > 0; |
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for (size_t i = 0; i < kAvailableTags; i++) { |
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if (tags_needed[i]) { |
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if (tags_valid[i]) { |
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gpr_log(GPR_DEBUG, "Verifying tag %d", static_cast<int>(i)); |
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if (tags[i] != tags_expected[i]) { |
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gpr_log(GPR_ERROR, "Got wrong result (%d instead of %d) for tag %d", |
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tags[i], tags_expected[i], static_cast<int>(i)); |
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GPR_ASSERT(false); |
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} |
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tags_valid[i] = false; |
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tags_needed[i] = false; |
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} else if (done) { |
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gpr_log(GPR_ERROR, "Didn't get tag %d", static_cast<int>(i)); |
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GPR_ASSERT(false); |
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} |
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} |
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} |
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bool empty = true; |
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for (size_t i = 0; i < kAvailableTags; i++) { |
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if (tags_needed[i]) { |
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empty = false; |
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} |
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} |
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done = done || empty; |
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if (done) { |
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for (size_t i = 0; i < kAvailableTags; i++) { |
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if (tags_valid[i]) { |
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gpr_log(GPR_ERROR, "Got unexpected tag %d and result %d", |
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static_cast<int>(i), tags[i]); |
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GPR_ASSERT(false); |
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} |
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tags_valid[i] = false; |
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} |
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} else { |
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gpr_cv_wait(&tags_cv, &tags_mu, deadline); |
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} |
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} |
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gpr_mu_unlock(&tags_mu); |
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} |
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// This function creates a callback functor that emits the
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// desired tag into the global tag set
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static grpc_core::CQCallbackInterface* tag(intptr_t t) { |
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auto func = [t](bool ok) { |
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gpr_mu_lock(&tags_mu); |
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gpr_log(GPR_DEBUG, "Completing operation %" PRIdPTR, t); |
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bool was_empty = true; |
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for (size_t i = 0; i < kAvailableTags; i++) { |
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if (tags_valid[i]) { |
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was_empty = false; |
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} |
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} |
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size_t idx = static_cast<size_t>(t); |
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tags[idx] = ok; |
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tags_valid[idx] = true; |
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if (was_empty) { |
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gpr_cv_signal(&tags_cv); |
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} |
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gpr_mu_unlock(&tags_mu); |
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}; |
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auto cb = NewDeletingCallback(func); |
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return cb; |
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} |
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static grpc_end2end_test_fixture inproc_create_fixture( |
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grpc_channel_args* client_args, grpc_channel_args* server_args) { |
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grpc_end2end_test_fixture f; |
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inproc_fixture_data* ffd = static_cast<inproc_fixture_data*>( |
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gpr_malloc(sizeof(inproc_fixture_data))); |
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memset(&f, 0, sizeof(f)); |
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f.fixture_data = ffd; |
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g_shutdown_callback = grpc_core::New<ShutdownCallback>(); |
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f.cq = |
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grpc_completion_queue_create_for_callback(g_shutdown_callback, nullptr); |
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f.shutdown_cq = grpc_completion_queue_create_for_pluck(nullptr); |
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return f; |
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} |
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void inproc_init_client(grpc_end2end_test_fixture* f, |
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grpc_channel_args* client_args) { |
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f->client = grpc_inproc_channel_create(f->server, client_args, nullptr); |
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GPR_ASSERT(f->client); |
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} |
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void inproc_init_server(grpc_end2end_test_fixture* f, |
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grpc_channel_args* server_args) { |
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if (f->server) { |
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grpc_server_destroy(f->server); |
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} |
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f->server = grpc_server_create(server_args, nullptr); |
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grpc_server_register_completion_queue(f->server, f->cq, nullptr); |
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grpc_server_start(f->server); |
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} |
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void inproc_tear_down(grpc_end2end_test_fixture* f) { |
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inproc_fixture_data* ffd = static_cast<inproc_fixture_data*>(f->fixture_data); |
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gpr_free(ffd); |
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} |
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static grpc_end2end_test_fixture begin_test(grpc_end2end_test_config config, |
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const char* test_name, |
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grpc_channel_args* client_args, |
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grpc_channel_args* server_args) { |
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grpc_end2end_test_fixture f; |
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gpr_log(GPR_INFO, "Running test: %s/%s", test_name, config.name); |
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f = config.create_fixture(client_args, server_args); |
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config.init_server(&f, server_args); |
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config.init_client(&f, client_args); |
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return f; |
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} |
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static gpr_timespec n_seconds_from_now(int n) { |
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return grpc_timeout_seconds_to_deadline(n); |
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} |
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static gpr_timespec five_seconds_from_now() { return n_seconds_from_now(5); } |
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static void drain_cq(grpc_completion_queue* cq) { |
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// Wait for the shutdown callback to arrive, or fail the test
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GPR_ASSERT(g_shutdown_callback->Wait(five_seconds_from_now())); |
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gpr_log(GPR_DEBUG, "CQ shutdown wait complete"); |
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grpc_core::Delete(g_shutdown_callback); |
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} |
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static void shutdown_server(grpc_end2end_test_fixture* f) { |
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if (!f->server) return; |
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grpc_server_shutdown_and_notify( |
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f->server, f->shutdown_cq, |
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reinterpret_cast<void*>(static_cast<intptr_t>(1000))); |
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GPR_ASSERT( |
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grpc_completion_queue_pluck(f->shutdown_cq, (void*)((intptr_t)1000), |
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grpc_timeout_seconds_to_deadline(5), nullptr) |
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.type == GRPC_OP_COMPLETE); |
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grpc_server_destroy(f->server); |
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f->server = nullptr; |
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} |
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static void shutdown_client(grpc_end2end_test_fixture* f) { |
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if (!f->client) return; |
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grpc_channel_destroy(f->client); |
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f->client = nullptr; |
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} |
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static void end_test(grpc_end2end_test_fixture* f) { |
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shutdown_server(f); |
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shutdown_client(f); |
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grpc_completion_queue_shutdown(f->cq); |
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drain_cq(f->cq); |
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grpc_completion_queue_destroy(f->cq); |
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grpc_completion_queue_destroy(f->shutdown_cq); |
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} |
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static void simple_request_body(grpc_end2end_test_config config, |
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grpc_end2end_test_fixture f) { |
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grpc_call* c; |
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grpc_call* s; |
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grpc_op ops[6]; |
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grpc_op* op; |
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grpc_metadata_array initial_metadata_recv; |
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grpc_metadata_array trailing_metadata_recv; |
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grpc_metadata_array request_metadata_recv; |
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grpc_call_details call_details; |
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grpc_status_code status; |
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const char* error_string; |
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grpc_call_error error; |
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grpc_slice details; |
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int was_cancelled = 2; |
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char* peer; |
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gpr_timespec deadline = five_seconds_from_now(); |
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c = grpc_channel_create_call(f.client, nullptr, GRPC_PROPAGATE_DEFAULTS, f.cq, |
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grpc_slice_from_static_string("/foo"), nullptr, |
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deadline, nullptr); |
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GPR_ASSERT(c); |
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peer = grpc_call_get_peer(c); |
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GPR_ASSERT(peer != nullptr); |
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gpr_log(GPR_DEBUG, "client_peer_before_call=%s", peer); |
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gpr_free(peer); |
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grpc_metadata_array_init(&initial_metadata_recv); |
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grpc_metadata_array_init(&trailing_metadata_recv); |
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grpc_metadata_array_init(&request_metadata_recv); |
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grpc_call_details_init(&call_details); |
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// Create a basic client unary request batch (no payload)
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memset(ops, 0, sizeof(ops)); |
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op = ops; |
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op->op = GRPC_OP_SEND_INITIAL_METADATA; |
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op->data.send_initial_metadata.count = 0; |
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op->flags = 0; |
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op->reserved = nullptr; |
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op++; |
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op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; |
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op->flags = 0; |
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op->reserved = nullptr; |
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op++; |
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op->op = GRPC_OP_RECV_INITIAL_METADATA; |
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op->data.recv_initial_metadata.recv_initial_metadata = &initial_metadata_recv; |
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op->flags = 0; |
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op->reserved = nullptr; |
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op++; |
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op->op = GRPC_OP_RECV_STATUS_ON_CLIENT; |
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op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv; |
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op->data.recv_status_on_client.status = &status; |
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op->data.recv_status_on_client.status_details = &details; |
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op->data.recv_status_on_client.error_string = &error_string; |
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op->flags = 0; |
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op->reserved = nullptr; |
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op++; |
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error = grpc_call_start_batch(c, ops, static_cast<size_t>(op - ops), tag(1), |
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nullptr); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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// Register a call at the server-side to match the incoming client call
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error = grpc_server_request_call(f.server, &s, &call_details, |
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&request_metadata_recv, f.cq, f.cq, tag(2)); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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// We expect that the server call creation callback (and no others) will
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// execute now since no other batch should be complete.
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expect_tag(2, true); |
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verify_tags(deadline); |
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peer = grpc_call_get_peer(s); |
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GPR_ASSERT(peer != nullptr); |
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gpr_log(GPR_DEBUG, "server_peer=%s", peer); |
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gpr_free(peer); |
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peer = grpc_call_get_peer(c); |
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GPR_ASSERT(peer != nullptr); |
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gpr_log(GPR_DEBUG, "client_peer=%s", peer); |
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gpr_free(peer); |
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// Create the server response batch (no payload)
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memset(ops, 0, sizeof(ops)); |
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op = ops; |
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op->op = GRPC_OP_SEND_INITIAL_METADATA; |
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op->data.send_initial_metadata.count = 0; |
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op->flags = 0; |
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op->reserved = nullptr; |
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op++; |
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op->op = GRPC_OP_SEND_STATUS_FROM_SERVER; |
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op->data.send_status_from_server.trailing_metadata_count = 0; |
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op->data.send_status_from_server.status = GRPC_STATUS_UNIMPLEMENTED; |
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grpc_slice status_details = grpc_slice_from_static_string("xyz"); |
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op->data.send_status_from_server.status_details = &status_details; |
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op->flags = 0; |
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op->reserved = nullptr; |
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op++; |
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op->op = GRPC_OP_RECV_CLOSE_ON_SERVER; |
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op->data.recv_close_on_server.cancelled = &was_cancelled; |
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op->flags = 0; |
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op->reserved = nullptr; |
||||||
|
op++; |
||||||
|
error = grpc_call_start_batch(s, ops, static_cast<size_t>(op - ops), tag(3), |
||||||
|
nullptr); |
||||||
|
GPR_ASSERT(GRPC_CALL_OK == error); |
||||||
|
|
||||||
|
// Both the client request and server response batches should get complete
|
||||||
|
// now and we should see that their callbacks have been executed
|
||||||
|
expect_tag(3, true); |
||||||
|
expect_tag(1, true); |
||||||
|
verify_tags(deadline); |
||||||
|
|
||||||
|
GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED); |
||||||
|
GPR_ASSERT(0 == grpc_slice_str_cmp(details, "xyz")); |
||||||
|
// the following sanity check makes sure that the requested error string is
|
||||||
|
// correctly populated by the core. It looks for certain substrings that are
|
||||||
|
// not likely to change much. Some parts of the error, like time created,
|
||||||
|
// obviously are not checked.
|
||||||
|
GPR_ASSERT(nullptr != strstr(error_string, "xyz")); |
||||||
|
GPR_ASSERT(nullptr != strstr(error_string, "description")); |
||||||
|
GPR_ASSERT(nullptr != strstr(error_string, "Error received from peer")); |
||||||
|
GPR_ASSERT(nullptr != strstr(error_string, "grpc_message")); |
||||||
|
GPR_ASSERT(nullptr != strstr(error_string, "grpc_status")); |
||||||
|
GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo")); |
||||||
|
GPR_ASSERT(0 == call_details.flags); |
||||||
|
GPR_ASSERT(was_cancelled == 1); |
||||||
|
|
||||||
|
grpc_slice_unref(details); |
||||||
|
gpr_free(static_cast<void*>(const_cast<char*>(error_string))); |
||||||
|
grpc_metadata_array_destroy(&initial_metadata_recv); |
||||||
|
grpc_metadata_array_destroy(&trailing_metadata_recv); |
||||||
|
grpc_metadata_array_destroy(&request_metadata_recv); |
||||||
|
grpc_call_details_destroy(&call_details); |
||||||
|
|
||||||
|
grpc_call_unref(c); |
||||||
|
grpc_call_unref(s); |
||||||
|
|
||||||
|
int expected_calls = 1; |
||||||
|
if (config.feature_mask & FEATURE_MASK_SUPPORTS_REQUEST_PROXYING) { |
||||||
|
expected_calls *= 2; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
static void test_invoke_simple_request(grpc_end2end_test_config config) { |
||||||
|
grpc_end2end_test_fixture f; |
||||||
|
|
||||||
|
f = begin_test(config, "test_invoke_simple_request", nullptr, nullptr); |
||||||
|
simple_request_body(config, f); |
||||||
|
end_test(&f); |
||||||
|
config.tear_down_data(&f); |
||||||
|
} |
||||||
|
|
||||||
|
static void test_invoke_10_simple_requests(grpc_end2end_test_config config) { |
||||||
|
int i; |
||||||
|
grpc_end2end_test_fixture f = |
||||||
|
begin_test(config, "test_invoke_10_simple_requests", nullptr, nullptr); |
||||||
|
for (i = 0; i < 10; i++) { |
||||||
|
simple_request_body(config, f); |
||||||
|
gpr_log(GPR_INFO, "Running test: Passed simple request %d", i); |
||||||
|
} |
||||||
|
end_test(&f); |
||||||
|
config.tear_down_data(&f); |
||||||
|
} |
||||||
|
|
||||||
|
static void test_invoke_many_simple_requests(grpc_end2end_test_config config) { |
||||||
|
int i; |
||||||
|
const int many = 1000; |
||||||
|
grpc_end2end_test_fixture f = |
||||||
|
begin_test(config, "test_invoke_many_simple_requests", nullptr, nullptr); |
||||||
|
gpr_timespec t1 = gpr_now(GPR_CLOCK_MONOTONIC); |
||||||
|
for (i = 0; i < many; i++) { |
||||||
|
simple_request_body(config, f); |
||||||
|
} |
||||||
|
double us = |
||||||
|
gpr_timespec_to_micros(gpr_time_sub(gpr_now(GPR_CLOCK_MONOTONIC), t1)) / |
||||||
|
many; |
||||||
|
gpr_log(GPR_INFO, "Time per ping %f us", us); |
||||||
|
end_test(&f); |
||||||
|
config.tear_down_data(&f); |
||||||
|
} |
||||||
|
|
||||||
|
static void simple_request(grpc_end2end_test_config config) { |
||||||
|
int i; |
||||||
|
for (i = 0; i < 10; i++) { |
||||||
|
test_invoke_simple_request(config); |
||||||
|
} |
||||||
|
test_invoke_10_simple_requests(config); |
||||||
|
test_invoke_many_simple_requests(config); |
||||||
|
} |
||||||
|
|
||||||
|
static void simple_request_pre_init() { |
||||||
|
gpr_mu_init(&tags_mu); |
||||||
|
gpr_cv_init(&tags_cv); |
||||||
|
} |
||||||
|
|
||||||
|
/* All test configurations */ |
||||||
|
static grpc_end2end_test_config configs[] = { |
||||||
|
{"inproc-callback", FEATURE_MASK_SUPPORTS_AUTHORITY_HEADER, nullptr, |
||||||
|
inproc_create_fixture, inproc_init_client, inproc_init_server, |
||||||
|
inproc_tear_down}, |
||||||
|
}; |
||||||
|
|
||||||
|
int main(int argc, char** argv) { |
||||||
|
grpc_test_init(argc, argv); |
||||||
|
grpc_init(); |
||||||
|
|
||||||
|
simple_request_pre_init(); |
||||||
|
simple_request(configs[0]); |
||||||
|
|
||||||
|
grpc_shutdown(); |
||||||
|
|
||||||
|
return 0; |
||||||
|
} |
||||||
Loading…
Reference in new issue