test/core/surface/completion_queue_test.cc - platform/external/grpc-grpc - Git at Google

 /*
  *
  * Copyright 2015 gRPC authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  */

 #include "src/core/lib/surface/completion_queue.h"

 #include <gtest/gtest.h>

 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>

 #include "src/core/lib/gpr/useful.h"
 #include "src/core/lib/gprpp/memory.h"
 #include "src/core/lib/gprpp/sync.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/iomgr/iomgr.h"
 #include "test/core/util/test_config.h"

 #define LOG_TEST(x) gpr_log(GPR_INFO, "%s", x)

 static void* create_test_tag(void) {
   static intptr_t i = 0;
   return reinterpret_cast<void*>(++i);
 }

 /* helper for tests to shutdown correctly and tersely */
 static void shutdown_and_destroy(grpc_completion_queue* cc) {
   grpc_event ev;
   grpc_completion_queue_shutdown(cc);

   switch (grpc_get_cq_completion_type(cc)) {
     case GRPC_CQ_NEXT: {
       ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME),
                                       nullptr);
       ASSERT_EQ(ev.type, GRPC_QUEUE_SHUTDOWN);
       break;
     }
     case GRPC_CQ_PLUCK: {
       ev = grpc_completion_queue_pluck(
           cc, create_test_tag(), gpr_inf_past(GPR_CLOCK_REALTIME), nullptr);
       ASSERT_EQ(ev.type, GRPC_QUEUE_SHUTDOWN);
       break;
     }
     case GRPC_CQ_CALLBACK: {
       // Nothing to do here. The shutdown callback will be invoked when
       // possible.
       break;
     }
     default: {
       gpr_log(GPR_ERROR, "Unknown completion type");
       break;
     }
   }

   grpc_completion_queue_destroy(cc);
 }

 /* ensure we can create and destroy a completion channel */
 TEST(GrpcCompletionQueueTest, TestNoOp) {
   grpc_cq_completion_type completion_types[] = {GRPC_CQ_NEXT, GRPC_CQ_PLUCK};
   grpc_cq_polling_type polling_types[] = {
       GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
   grpc_completion_queue_attributes attr;
   LOG_TEST("test_no_op");

   attr.version = 1;
   for (size_t i = 0; i < GPR_ARRAY_SIZE(completion_types); i++) {
     for (size_t j = 0; j < GPR_ARRAY_SIZE(polling_types); j++) {
       attr.cq_completion_type = completion_types[i];
       attr.cq_polling_type = polling_types[j];
       shutdown_and_destroy(grpc_completion_queue_create(
           grpc_completion_queue_factory_lookup(&attr), &attr, nullptr));
     }
   }
 }

 TEST(GrpcCompletionQueueTest, TestPollsetConversion) {
   grpc_cq_completion_type completion_types[] = {GRPC_CQ_NEXT, GRPC_CQ_PLUCK};
   grpc_cq_polling_type polling_types[] = {GRPC_CQ_DEFAULT_POLLING,
                                           GRPC_CQ_NON_LISTENING};
   grpc_completion_queue* cq;
   grpc_completion_queue_attributes attr;

   LOG_TEST("test_pollset_conversion");

   attr.version = 1;
   for (size_t i = 0; i < GPR_ARRAY_SIZE(completion_types); i++) {
     for (size_t j = 0; j < GPR_ARRAY_SIZE(polling_types); j++) {
       attr.cq_completion_type = completion_types[i];
       attr.cq_polling_type = polling_types[j];
       cq = grpc_completion_queue_create(
           grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
       ASSERT_NE(grpc_cq_pollset(cq), nullptr);
       shutdown_and_destroy(cq);
     }
   }
 }

 TEST(GrpcCompletionQueueTest, TestWaitEmpty) {
   grpc_cq_polling_type polling_types[] = {
       GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
   grpc_completion_queue* cc;
   grpc_completion_queue_attributes attr;
   grpc_event event;

   LOG_TEST("test_wait_empty");

   attr.version = 1;
   attr.cq_completion_type = GRPC_CQ_NEXT;
   for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
     attr.cq_polling_type = polling_types[i];
     cc = grpc_completion_queue_create(
         grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
     event =
         grpc_completion_queue_next(cc, gpr_now(GPR_CLOCK_REALTIME), nullptr);
     ASSERT_EQ(event.type, GRPC_QUEUE_TIMEOUT);
     shutdown_and_destroy(cc);
   }
 }

 static void do_nothing_end_completion(void* /*arg*/,
                                       grpc_cq_completion* /*c*/) {}

 TEST(GrpcCompletionQueueTest, TestCqEndOp) {
   grpc_event ev;
   grpc_completion_queue* cc;
   grpc_cq_completion completion;
   grpc_cq_polling_type polling_types[] = {
       GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
   grpc_completion_queue_attributes attr;
   void* tag = create_test_tag();

   LOG_TEST("test_cq_end_op");

   attr.version = 1;
   attr.cq_completion_type = GRPC_CQ_NEXT;
   for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
     grpc_core::ExecCtx exec_ctx;
     attr.cq_polling_type = polling_types[i];
     cc = grpc_completion_queue_create(
         grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

     ASSERT_TRUE(grpc_cq_begin_op(cc, tag));
     grpc_cq_end_op(cc, tag, GRPC_ERROR_NONE, do_nothing_end_completion, nullptr,
                    &completion);

     ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME),
                                     nullptr);
     ASSERT_EQ(ev.type, GRPC_OP_COMPLETE);
     ASSERT_EQ(ev.tag, tag);
     ASSERT_TRUE(ev.success);

     shutdown_and_destroy(cc);
   }
 }

 TEST(GrpcCompletionQueueTest, TestCqTlsCacheFull) {
   grpc_event ev;
   grpc_completion_queue* cc;
   grpc_cq_completion completion;
   grpc_cq_polling_type polling_types[] = {
       GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
   grpc_completion_queue_attributes attr;
   void* tag = create_test_tag();
   void* res_tag;
   int ok;

   LOG_TEST("test_cq_tls_cache_full");

   attr.version = 1;
   attr.cq_completion_type = GRPC_CQ_NEXT;
   for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
     grpc_core::ExecCtx exec_ctx;  // Reset exec_ctx
     attr.cq_polling_type = polling_types[i];
     cc = grpc_completion_queue_create(
         grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

     grpc_completion_queue_thread_local_cache_init(cc);
     ASSERT_TRUE(grpc_cq_begin_op(cc, tag));
     grpc_cq_end_op(cc, tag, GRPC_ERROR_NONE, do_nothing_end_completion, nullptr,
                    &completion);

     ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME),
                                     nullptr);
     ASSERT_EQ(ev.type, GRPC_QUEUE_TIMEOUT);

     ASSERT_EQ(grpc_completion_queue_thread_local_cache_flush(cc, &res_tag, &ok),
               1);
     ASSERT_EQ(res_tag, tag);
     ASSERT_TRUE(ok);

     ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME),
                                     nullptr);
     ASSERT_EQ(ev.type, GRPC_QUEUE_TIMEOUT);

     shutdown_and_destroy(cc);
   }
 }

 TEST(GrpcCompletionQueueTest, TestCqTlsCacheEmpty) {
   grpc_completion_queue* cc;
   grpc_cq_polling_type polling_types[] = {
       GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
   grpc_completion_queue_attributes attr;
   void* res_tag;
   int ok;

   LOG_TEST("test_cq_tls_cache_empty");

   attr.version = 1;
   attr.cq_completion_type = GRPC_CQ_NEXT;
   for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
     grpc_core::ExecCtx exec_ctx;  // Reset exec_ctx
     attr.cq_polling_type = polling_types[i];
     cc = grpc_completion_queue_create(
         grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

     ASSERT_EQ(grpc_completion_queue_thread_local_cache_flush(cc, &res_tag, &ok),
               0);
     grpc_completion_queue_thread_local_cache_init(cc);
     ASSERT_EQ(grpc_completion_queue_thread_local_cache_flush(cc, &res_tag, &ok),
               0);
     shutdown_and_destroy(cc);
   }
 }

 TEST(GrpcCompletionQueueTest, TestShutdownThenNextPolling) {
   grpc_cq_polling_type polling_types[] = {
       GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
   grpc_completion_queue* cc;
   grpc_completion_queue_attributes attr;
   grpc_event event;
   LOG_TEST("test_shutdown_then_next_polling");

   attr.version = 1;
   attr.cq_completion_type = GRPC_CQ_NEXT;
   for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
     attr.cq_polling_type = polling_types[i];
     cc = grpc_completion_queue_create(
         grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
     grpc_completion_queue_shutdown(cc);
     event = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME),
                                        nullptr);
     ASSERT_EQ(event.type, GRPC_QUEUE_SHUTDOWN);
     grpc_completion_queue_destroy(cc);
   }
 }

 TEST(GrpcCompletionQueueTest, TestShutdownThenNextWithTimeout) {
   grpc_cq_polling_type polling_types[] = {
       GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
   grpc_completion_queue* cc;
   grpc_completion_queue_attributes attr;
   grpc_event event;
   LOG_TEST("test_shutdown_then_next_with_timeout");

   attr.version = 1;
   attr.cq_completion_type = GRPC_CQ_NEXT;
   for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
     attr.cq_polling_type = polling_types[i];
     cc = grpc_completion_queue_create(
         grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

     grpc_completion_queue_shutdown(cc);
     event = grpc_completion_queue_next(cc, gpr_inf_future(GPR_CLOCK_REALTIME),
                                        nullptr);
     ASSERT_EQ(event.type, GRPC_QUEUE_SHUTDOWN);
     grpc_completion_queue_destroy(cc);
   }
 }

 TEST(GrpcCompletionQueueTest, TestPluck) {
   grpc_event ev;
   grpc_completion_queue* cc;
   void* tags[128];
   grpc_cq_completion completions[GPR_ARRAY_SIZE(tags)];
   grpc_cq_polling_type polling_types[] = {
       GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
   grpc_completion_queue_attributes attr;
   unsigned i, j;

   LOG_TEST("test_pluck");

   for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
     tags[i] = create_test_tag();
     for (j = 0; j < i; j++) {
       ASSERT_NE(tags[i], tags[j]);
     }
   }

   attr.version = 1;
   attr.cq_completion_type = GRPC_CQ_PLUCK;
   for (size_t pidx = 0; pidx < GPR_ARRAY_SIZE(polling_types); pidx++) {
     grpc_core::ExecCtx exec_ctx;  // reset exec_ctx
     attr.cq_polling_type = polling_types[pidx];
     cc = grpc_completion_queue_create(
         grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

     for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
       ASSERT_TRUE(grpc_cq_begin_op(cc, tags[i]));
       grpc_cq_end_op(cc, tags[i], GRPC_ERROR_NONE, do_nothing_end_completion,
                      nullptr, &completions[i]);
     }

     for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
       ev = grpc_completion_queue_pluck(
           cc, tags[i], gpr_inf_past(GPR_CLOCK_REALTIME), nullptr);
       ASSERT_EQ(ev.tag, tags[i]);
     }

     for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
       ASSERT_TRUE(grpc_cq_begin_op(cc, tags[i]));
       grpc_cq_end_op(cc, tags[i], GRPC_ERROR_NONE, do_nothing_end_completion,
                      nullptr, &completions[i]);
     }

     for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
       ev = grpc_completion_queue_pluck(cc, tags[GPR_ARRAY_SIZE(tags) - i - 1],
                                        gpr_inf_past(GPR_CLOCK_REALTIME),
                                        nullptr);
       ASSERT_EQ(ev.tag, tags[GPR_ARRAY_SIZE(tags) - i - 1]);
     }

     shutdown_and_destroy(cc);
   }
 }

 TEST(GrpcCompletionQueueTest, TestPluckAfterShutdown) {
   grpc_cq_polling_type polling_types[] = {
       GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
   grpc_event ev;
   grpc_completion_queue* cc;
   grpc_completion_queue_attributes attr;

   LOG_TEST("test_pluck_after_shutdown");

   attr.version = 1;
   attr.cq_completion_type = GRPC_CQ_PLUCK;
   for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
     attr.cq_polling_type = polling_types[i];
     cc = grpc_completion_queue_create(
         grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
     grpc_completion_queue_shutdown(cc);
     ev = grpc_completion_queue_pluck(
         cc, nullptr, gpr_inf_future(GPR_CLOCK_REALTIME), nullptr);
     ASSERT_EQ(ev.type, GRPC_QUEUE_SHUTDOWN);
     grpc_completion_queue_destroy(cc);
   }
 }

 TEST(GrpcCompletionQueueTest, TestCallback) {
   grpc_completion_queue* cc;
   static void* tags[128];
   grpc_cq_completion completions[GPR_ARRAY_SIZE(tags)];
   grpc_cq_polling_type polling_types[] = {
       GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
   grpc_completion_queue_attributes attr;
   unsigned i;
   static gpr_mu mu, shutdown_mu;
   static gpr_cv cv, shutdown_cv;
   static int cb_counter;
   gpr_mu_init(&mu);
   gpr_mu_init(&shutdown_mu);
   gpr_cv_init(&cv);
   gpr_cv_init(&shutdown_cv);

   LOG_TEST("test_callback");

   bool got_shutdown = false;
   class ShutdownCallback : public grpc_completion_queue_functor {
    public:
     explicit ShutdownCallback(bool* done) : done_(done) {
       functor_run = &ShutdownCallback::Run;
       inlineable = false;
     }
     ~ShutdownCallback() {}
     static void Run(grpc_completion_queue_functor* cb, int ok) {
       gpr_mu_lock(&shutdown_mu);
       *static_cast<ShutdownCallback*>(cb)->done_ = static_cast<bool>(ok);
       // Signal when the shutdown callback is completed.
       gpr_cv_signal(&shutdown_cv);
       gpr_mu_unlock(&shutdown_mu);
     }

    private:
     bool* done_;
   };
   ShutdownCallback shutdown_cb(&got_shutdown);

   attr.version = 2;
   attr.cq_completion_type = GRPC_CQ_CALLBACK;
   attr.cq_shutdown_cb = &shutdown_cb;

   for (size_t pidx = 0; pidx < GPR_ARRAY_SIZE(polling_types); pidx++) {
     int sumtags = 0;
     int counter = 0;
     cb_counter = 0;
     {
       // reset exec_ctx types
       grpc_core::ExecCtx exec_ctx;
       attr.cq_polling_type = polling_types[pidx];
       cc = grpc_completion_queue_create(
           grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

       class TagCallback : public grpc_completion_queue_functor {
        public:
         TagCallback(int* counter, int tag) : counter_(counter), tag_(tag) {
           functor_run = &TagCallback::Run;
           // Inlineable should be false since this callback takes locks.
           inlineable = false;
         }
         ~TagCallback() {}
         static void Run(grpc_completion_queue_functor* cb, int ok) {
           ASSERT_TRUE(static_cast<bool>(ok));
           auto* callback = static_cast<TagCallback*>(cb);
           gpr_mu_lock(&mu);
           cb_counter++;
           *callback->counter_ += callback->tag_;
           if (cb_counter == GPR_ARRAY_SIZE(tags)) {
             gpr_cv_signal(&cv);
           }
           gpr_mu_unlock(&mu);
           delete callback;
         };

        private:
         int* counter_;
         int tag_;
       };

       for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
         tags[i] = static_cast<void*>(new TagCallback(&counter, i));
         sumtags += i;
       }

       for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
         ASSERT_TRUE(grpc_cq_begin_op(cc, tags[i]));
         grpc_cq_end_op(cc, tags[i], GRPC_ERROR_NONE, do_nothing_end_completion,
                        nullptr, &completions[i]);
       }

       gpr_mu_lock(&mu);
       while (cb_counter != GPR_ARRAY_SIZE(tags)) {
         // Wait for all the callbacks to complete.
         gpr_cv_wait(&cv, &mu, gpr_inf_future(GPR_CLOCK_REALTIME));
       }
       gpr_mu_unlock(&mu);

       shutdown_and_destroy(cc);

       gpr_mu_lock(&shutdown_mu);
       while (!got_shutdown) {
         // Wait for the shutdown callback to complete.
         gpr_cv_wait(&shutdown_cv, &shutdown_mu,
                     gpr_inf_future(GPR_CLOCK_REALTIME));
       }
       gpr_mu_unlock(&shutdown_mu);
     }

     // Run the assertions to check if the test ran successfully.
     ASSERT_EQ(sumtags, counter);
     ASSERT_TRUE(got_shutdown);
     got_shutdown = false;
   }

   gpr_cv_destroy(&cv);
   gpr_cv_destroy(&shutdown_cv);
   gpr_mu_destroy(&mu);
   gpr_mu_destroy(&shutdown_mu);
 }

 struct thread_state {
   grpc_completion_queue* cc;
   void* tag;
 };

 int main(int argc, char** argv) {
   grpc::testing::TestEnvironment env(&argc, argv);
   ::testing::InitGoogleTest(&argc, argv);
   grpc::testing::TestGrpcScope grpc_scope;
   return RUN_ALL_TESTS();
 }
	/*
	*
	* Copyright 2015 gRPC authors.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*
	*/

	#include "src/core/lib/surface/completion_queue.h"

	#include <gtest/gtest.h>

	#include <grpc/grpc.h>
	#include <grpc/support/alloc.h>
	#include <grpc/support/log.h>
	#include <grpc/support/time.h>

	#include "src/core/lib/gpr/useful.h"
	#include "src/core/lib/gprpp/memory.h"
	#include "src/core/lib/gprpp/sync.h"
	#include "src/core/lib/iomgr/exec_ctx.h"
	#include "src/core/lib/iomgr/iomgr.h"
	#include "test/core/util/test_config.h"

	#define LOG_TEST(x) gpr_log(GPR_INFO, "%s", x)

	static void* create_test_tag(void) {
	static intptr_t i = 0;
	return reinterpret_cast<void*>(++i);
	}

	/* helper for tests to shutdown correctly and tersely */
	static void shutdown_and_destroy(grpc_completion_queue* cc) {
	grpc_event ev;
	grpc_completion_queue_shutdown(cc);

	switch (grpc_get_cq_completion_type(cc)) {
	case GRPC_CQ_NEXT: {
	ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME),
	nullptr);
	ASSERT_EQ(ev.type, GRPC_QUEUE_SHUTDOWN);
	break;
	}
	case GRPC_CQ_PLUCK: {
	ev = grpc_completion_queue_pluck(
	cc, create_test_tag(), gpr_inf_past(GPR_CLOCK_REALTIME), nullptr);
	ASSERT_EQ(ev.type, GRPC_QUEUE_SHUTDOWN);
	break;
	}
	case GRPC_CQ_CALLBACK: {
	// Nothing to do here. The shutdown callback will be invoked when
	// possible.
	break;
	}
	default: {
	gpr_log(GPR_ERROR, "Unknown completion type");
	break;
	}
	}

	grpc_completion_queue_destroy(cc);
	}

	/* ensure we can create and destroy a completion channel */
	TEST(GrpcCompletionQueueTest, TestNoOp) {
	grpc_cq_completion_type completion_types[] = {GRPC_CQ_NEXT, GRPC_CQ_PLUCK};
	grpc_cq_polling_type polling_types[] = {
	GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
	grpc_completion_queue_attributes attr;
	LOG_TEST("test_no_op");

	attr.version = 1;
	for (size_t i = 0; i < GPR_ARRAY_SIZE(completion_types); i++) {
	for (size_t j = 0; j < GPR_ARRAY_SIZE(polling_types); j++) {
	attr.cq_completion_type = completion_types[i];
	attr.cq_polling_type = polling_types[j];
	shutdown_and_destroy(grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr));
	}
	}
	}

	TEST(GrpcCompletionQueueTest, TestPollsetConversion) {
	grpc_cq_completion_type completion_types[] = {GRPC_CQ_NEXT, GRPC_CQ_PLUCK};
	grpc_cq_polling_type polling_types[] = {GRPC_CQ_DEFAULT_POLLING,
	GRPC_CQ_NON_LISTENING};
	grpc_completion_queue* cq;
	grpc_completion_queue_attributes attr;

	LOG_TEST("test_pollset_conversion");

	attr.version = 1;
	for (size_t i = 0; i < GPR_ARRAY_SIZE(completion_types); i++) {
	for (size_t j = 0; j < GPR_ARRAY_SIZE(polling_types); j++) {
	attr.cq_completion_type = completion_types[i];
	attr.cq_polling_type = polling_types[j];
	cq = grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
	ASSERT_NE(grpc_cq_pollset(cq), nullptr);
	shutdown_and_destroy(cq);
	}
	}
	}

	TEST(GrpcCompletionQueueTest, TestWaitEmpty) {
	grpc_cq_polling_type polling_types[] = {
	GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
	grpc_completion_queue* cc;
	grpc_completion_queue_attributes attr;
	grpc_event event;

	LOG_TEST("test_wait_empty");

	attr.version = 1;
	attr.cq_completion_type = GRPC_CQ_NEXT;
	for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
	attr.cq_polling_type = polling_types[i];
	cc = grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
	event =
	grpc_completion_queue_next(cc, gpr_now(GPR_CLOCK_REALTIME), nullptr);
	ASSERT_EQ(event.type, GRPC_QUEUE_TIMEOUT);
	shutdown_and_destroy(cc);
	}
	}

	static void do_nothing_end_completion(void* /arg/,
	grpc_cq_completion* /c/) {}

	TEST(GrpcCompletionQueueTest, TestCqEndOp) {
	grpc_event ev;
	grpc_completion_queue* cc;
	grpc_cq_completion completion;
	grpc_cq_polling_type polling_types[] = {
	GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
	grpc_completion_queue_attributes attr;
	void* tag = create_test_tag();

	LOG_TEST("test_cq_end_op");

	attr.version = 1;
	attr.cq_completion_type = GRPC_CQ_NEXT;
	for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
	grpc_core::ExecCtx exec_ctx;
	attr.cq_polling_type = polling_types[i];
	cc = grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

	ASSERT_TRUE(grpc_cq_begin_op(cc, tag));
	grpc_cq_end_op(cc, tag, GRPC_ERROR_NONE, do_nothing_end_completion, nullptr,
	&completion);

	ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME),
	nullptr);
	ASSERT_EQ(ev.type, GRPC_OP_COMPLETE);
	ASSERT_EQ(ev.tag, tag);
	ASSERT_TRUE(ev.success);

	shutdown_and_destroy(cc);
	}
	}

	TEST(GrpcCompletionQueueTest, TestCqTlsCacheFull) {
	grpc_event ev;
	grpc_completion_queue* cc;
	grpc_cq_completion completion;
	grpc_cq_polling_type polling_types[] = {
	GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
	grpc_completion_queue_attributes attr;
	void* tag = create_test_tag();
	void* res_tag;
	int ok;

	LOG_TEST("test_cq_tls_cache_full");

	attr.version = 1;
	attr.cq_completion_type = GRPC_CQ_NEXT;
	for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
	grpc_core::ExecCtx exec_ctx; // Reset exec_ctx
	attr.cq_polling_type = polling_types[i];
	cc = grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

	grpc_completion_queue_thread_local_cache_init(cc);
	ASSERT_TRUE(grpc_cq_begin_op(cc, tag));
	grpc_cq_end_op(cc, tag, GRPC_ERROR_NONE, do_nothing_end_completion, nullptr,
	&completion);

	ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME),
	nullptr);
	ASSERT_EQ(ev.type, GRPC_QUEUE_TIMEOUT);

	ASSERT_EQ(grpc_completion_queue_thread_local_cache_flush(cc, &res_tag, &ok),
	1);
	ASSERT_EQ(res_tag, tag);
	ASSERT_TRUE(ok);

	ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME),
	nullptr);
	ASSERT_EQ(ev.type, GRPC_QUEUE_TIMEOUT);

	shutdown_and_destroy(cc);
	}
	}

	TEST(GrpcCompletionQueueTest, TestCqTlsCacheEmpty) {
	grpc_completion_queue* cc;
	grpc_cq_polling_type polling_types[] = {
	GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
	grpc_completion_queue_attributes attr;
	void* res_tag;
	int ok;

	LOG_TEST("test_cq_tls_cache_empty");

	attr.version = 1;
	attr.cq_completion_type = GRPC_CQ_NEXT;
	for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
	grpc_core::ExecCtx exec_ctx; // Reset exec_ctx
	attr.cq_polling_type = polling_types[i];
	cc = grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

	ASSERT_EQ(grpc_completion_queue_thread_local_cache_flush(cc, &res_tag, &ok),
	0);
	grpc_completion_queue_thread_local_cache_init(cc);
	ASSERT_EQ(grpc_completion_queue_thread_local_cache_flush(cc, &res_tag, &ok),
	0);
	shutdown_and_destroy(cc);
	}
	}

	TEST(GrpcCompletionQueueTest, TestShutdownThenNextPolling) {
	grpc_cq_polling_type polling_types[] = {
	GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
	grpc_completion_queue* cc;
	grpc_completion_queue_attributes attr;
	grpc_event event;
	LOG_TEST("test_shutdown_then_next_polling");

	attr.version = 1;
	attr.cq_completion_type = GRPC_CQ_NEXT;
	for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
	attr.cq_polling_type = polling_types[i];
	cc = grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
	grpc_completion_queue_shutdown(cc);
	event = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME),
	nullptr);
	ASSERT_EQ(event.type, GRPC_QUEUE_SHUTDOWN);
	grpc_completion_queue_destroy(cc);
	}
	}

	TEST(GrpcCompletionQueueTest, TestShutdownThenNextWithTimeout) {
	grpc_cq_polling_type polling_types[] = {
	GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
	grpc_completion_queue* cc;
	grpc_completion_queue_attributes attr;
	grpc_event event;
	LOG_TEST("test_shutdown_then_next_with_timeout");

	attr.version = 1;
	attr.cq_completion_type = GRPC_CQ_NEXT;
	for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
	attr.cq_polling_type = polling_types[i];
	cc = grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

	grpc_completion_queue_shutdown(cc);
	event = grpc_completion_queue_next(cc, gpr_inf_future(GPR_CLOCK_REALTIME),
	nullptr);
	ASSERT_EQ(event.type, GRPC_QUEUE_SHUTDOWN);
	grpc_completion_queue_destroy(cc);
	}
	}

	TEST(GrpcCompletionQueueTest, TestPluck) {
	grpc_event ev;
	grpc_completion_queue* cc;
	void* tags[128];
	grpc_cq_completion completions[GPR_ARRAY_SIZE(tags)];
	grpc_cq_polling_type polling_types[] = {
	GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
	grpc_completion_queue_attributes attr;
	unsigned i, j;

	LOG_TEST("test_pluck");

	for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
	tags[i] = create_test_tag();
	for (j = 0; j < i; j++) {
	ASSERT_NE(tags[i], tags[j]);
	}
	}

	attr.version = 1;
	attr.cq_completion_type = GRPC_CQ_PLUCK;
	for (size_t pidx = 0; pidx < GPR_ARRAY_SIZE(polling_types); pidx++) {
	grpc_core::ExecCtx exec_ctx; // reset exec_ctx
	attr.cq_polling_type = polling_types[pidx];
	cc = grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

	for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
	ASSERT_TRUE(grpc_cq_begin_op(cc, tags[i]));
	grpc_cq_end_op(cc, tags[i], GRPC_ERROR_NONE, do_nothing_end_completion,
	nullptr, &completions[i]);
	}

	for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
	ev = grpc_completion_queue_pluck(
	cc, tags[i], gpr_inf_past(GPR_CLOCK_REALTIME), nullptr);
	ASSERT_EQ(ev.tag, tags[i]);
	}

	for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
	ASSERT_TRUE(grpc_cq_begin_op(cc, tags[i]));
	grpc_cq_end_op(cc, tags[i], GRPC_ERROR_NONE, do_nothing_end_completion,
	nullptr, &completions[i]);
	}

	for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
	ev = grpc_completion_queue_pluck(cc, tags[GPR_ARRAY_SIZE(tags) - i - 1],
	gpr_inf_past(GPR_CLOCK_REALTIME),
	nullptr);
	ASSERT_EQ(ev.tag, tags[GPR_ARRAY_SIZE(tags) - i - 1]);
	}

	shutdown_and_destroy(cc);
	}
	}

	TEST(GrpcCompletionQueueTest, TestPluckAfterShutdown) {
	grpc_cq_polling_type polling_types[] = {
	GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
	grpc_event ev;
	grpc_completion_queue* cc;
	grpc_completion_queue_attributes attr;

	LOG_TEST("test_pluck_after_shutdown");

	attr.version = 1;
	attr.cq_completion_type = GRPC_CQ_PLUCK;
	for (size_t i = 0; i < GPR_ARRAY_SIZE(polling_types); i++) {
	attr.cq_polling_type = polling_types[i];
	cc = grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
	grpc_completion_queue_shutdown(cc);
	ev = grpc_completion_queue_pluck(
	cc, nullptr, gpr_inf_future(GPR_CLOCK_REALTIME), nullptr);
	ASSERT_EQ(ev.type, GRPC_QUEUE_SHUTDOWN);
	grpc_completion_queue_destroy(cc);
	}
	}

	TEST(GrpcCompletionQueueTest, TestCallback) {
	grpc_completion_queue* cc;
	static void* tags[128];
	grpc_cq_completion completions[GPR_ARRAY_SIZE(tags)];
	grpc_cq_polling_type polling_types[] = {
	GRPC_CQ_DEFAULT_POLLING, GRPC_CQ_NON_LISTENING, GRPC_CQ_NON_POLLING};
	grpc_completion_queue_attributes attr;
	unsigned i;
	static gpr_mu mu, shutdown_mu;
	static gpr_cv cv, shutdown_cv;
	static int cb_counter;
	gpr_mu_init(&mu);
	gpr_mu_init(&shutdown_mu);
	gpr_cv_init(&cv);
	gpr_cv_init(&shutdown_cv);

	LOG_TEST("test_callback");

	bool got_shutdown = false;
	class ShutdownCallback : public grpc_completion_queue_functor {
	public:
	explicit ShutdownCallback(bool* done) : done_(done) {
	functor_run = &ShutdownCallback::Run;
	inlineable = false;
	}
	~ShutdownCallback() {}
	static void Run(grpc_completion_queue_functor* cb, int ok) {
	gpr_mu_lock(&shutdown_mu);
	static_cast<ShutdownCallback>(cb)->done_ = static_cast<bool>(ok);
	// Signal when the shutdown callback is completed.
	gpr_cv_signal(&shutdown_cv);
	gpr_mu_unlock(&shutdown_mu);
	}

	private:
	bool* done_;
	};
	ShutdownCallback shutdown_cb(&got_shutdown);

	attr.version = 2;
	attr.cq_completion_type = GRPC_CQ_CALLBACK;
	attr.cq_shutdown_cb = &shutdown_cb;

	for (size_t pidx = 0; pidx < GPR_ARRAY_SIZE(polling_types); pidx++) {
	int sumtags = 0;
	int counter = 0;
	cb_counter = 0;
	{
	// reset exec_ctx types
	grpc_core::ExecCtx exec_ctx;
	attr.cq_polling_type = polling_types[pidx];
	cc = grpc_completion_queue_create(
	grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);

	class TagCallback : public grpc_completion_queue_functor {
	public:
	TagCallback(int* counter, int tag) : counter_(counter), tag_(tag) {
	functor_run = &TagCallback::Run;
	// Inlineable should be false since this callback takes locks.
	inlineable = false;
	}
	~TagCallback() {}
	static void Run(grpc_completion_queue_functor* cb, int ok) {
	ASSERT_TRUE(static_cast<bool>(ok));
	auto* callback = static_cast<TagCallback*>(cb);
	gpr_mu_lock(&mu);
	cb_counter++;
	*callback->counter_ += callback->tag_;
	if (cb_counter == GPR_ARRAY_SIZE(tags)) {
	gpr_cv_signal(&cv);
	}
	gpr_mu_unlock(&mu);
	delete callback;
	};

	private:
	int* counter_;
	int tag_;
	};

	for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
	tags[i] = static_cast<void*>(new TagCallback(&counter, i));
	sumtags += i;
	}

	for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
	ASSERT_TRUE(grpc_cq_begin_op(cc, tags[i]));
	grpc_cq_end_op(cc, tags[i], GRPC_ERROR_NONE, do_nothing_end_completion,
	nullptr, &completions[i]);
	}

	gpr_mu_lock(&mu);
	while (cb_counter != GPR_ARRAY_SIZE(tags)) {
	// Wait for all the callbacks to complete.
	gpr_cv_wait(&cv, &mu, gpr_inf_future(GPR_CLOCK_REALTIME));
	}
	gpr_mu_unlock(&mu);

	shutdown_and_destroy(cc);

	gpr_mu_lock(&shutdown_mu);
	while (!got_shutdown) {
	// Wait for the shutdown callback to complete.
	gpr_cv_wait(&shutdown_cv, &shutdown_mu,
	gpr_inf_future(GPR_CLOCK_REALTIME));
	}
	gpr_mu_unlock(&shutdown_mu);
	}

	// Run the assertions to check if the test ran successfully.
	ASSERT_EQ(sumtags, counter);
	ASSERT_TRUE(got_shutdown);
	got_shutdown = false;
	}

	gpr_cv_destroy(&cv);
	gpr_cv_destroy(&shutdown_cv);
	gpr_mu_destroy(&mu);
	gpr_mu_destroy(&shutdown_mu);
	}

	struct thread_state {
	grpc_completion_queue* cc;
	void* tag;
	};

	int main(int argc, char** argv) {
	grpc::testing::TestEnvironment env(&argc, argv);
	::testing::InitGoogleTest(&argc, argv);
	grpc::testing::TestGrpcScope grpc_scope;
	return RUN_ALL_TESTS();
	}