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				|  |  | -/*
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				|  |  | - *
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				|  |  | - * Copyright 2015 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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				|  |  | -
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				|  |  | -/* This benchmark exists to ensure that immediately-firing alarms are fast */
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				|  |  | -
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				|  |  | -#include <benchmark/benchmark.h>
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				|  |  | -#include <grpc/grpc.h>
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				|  |  | -#include <grpcpp/alarm.h>
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				|  |  | -#include <grpcpp/completion_queue.h>
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				|  |  | -#include <grpcpp/impl/grpc_library.h>
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				|  |  | -#include "test/core/util/test_config.h"
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				|  |  | -#include "test/cpp/microbenchmarks/helpers.h"
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				|  |  | -#include "test/cpp/util/test_config.h"
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				|  |  | -
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				|  |  | -#include "src/core/lib/gpr/useful.h"
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				|  |  | -#include "src/core/lib/gprpp/memory.h"
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				|  |  | -#include "src/core/lib/iomgr/iomgr.h"
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				|  |  | -#include "src/core/lib/surface/completion_queue.h"
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				|  |  | -
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				|  |  | -namespace grpc {
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				|  |  | -namespace testing {
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				|  |  | -
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				|  |  | -class TagCallback : public grpc_experimental_completion_queue_functor {
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				|  |  | - public:
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				|  |  | -  TagCallback(int* counter, int tag) : counter_(counter), tag_(tag) {
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				|  |  | -    functor_run = &TagCallback::Run;
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				|  |  | -  }
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				|  |  | -  ~TagCallback() {}
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				|  |  | -  static void Run(grpc_experimental_completion_queue_functor* cb, int ok) {
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				|  |  | -    GPR_ASSERT(static_cast<bool>(ok));
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				|  |  | -    auto* callback = static_cast<TagCallback*>(cb);
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				|  |  | -    *callback->counter_ += callback->tag_;
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				|  |  | -    grpc_core::Delete(callback);
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				|  |  | -  };
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				|  |  | -
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				|  |  | - private:
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				|  |  | -  int* counter_;
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				|  |  | -  int tag_;
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				|  |  | -};
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				|  |  | -
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				|  |  | -class ShutdownCallback : public grpc_experimental_completion_queue_functor {
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				|  |  | - public:
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				|  |  | -  ShutdownCallback(bool* done) : done_(done) {
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				|  |  | -    functor_run = &ShutdownCallback::Run;
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				|  |  | -  }
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				|  |  | -  ~ShutdownCallback() {}
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				|  |  | -  static void Run(grpc_experimental_completion_queue_functor* cb, int ok) {
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				|  |  | -    *static_cast<ShutdownCallback*>(cb)->done_ = static_cast<bool>(ok);
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				|  |  | -  }
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				|  |  | -
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				|  |  | - private:
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				|  |  | -  bool* done_;
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				|  |  | -};
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				|  |  | -
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				|  |  | -/* helper for tests to shutdown correctly and tersely */
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				|  |  | -static void shutdown_and_destroy(grpc_completion_queue* cc) {
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				|  |  | -  grpc_completion_queue_shutdown(cc);
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				|  |  | -  grpc_completion_queue_destroy(cc);
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				|  |  | -}
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				|  |  | -
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				|  |  | -static void do_nothing_end_completion(void* arg, grpc_cq_completion* c) {}
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				|  |  | -
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				|  |  | -static void BM_Callback_CQ_Default_Polling(benchmark::State& state) {
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				|  |  | -  int tag_size = state.range(0);
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				|  |  | -  grpc_completion_queue* cc;
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				|  |  | -  void* tags[tag_size];
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				|  |  | -  grpc_cq_completion completions[GPR_ARRAY_SIZE(tags)];
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				|  |  | -
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				|  |  | -  grpc_completion_queue_attributes attr;
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				|  |  | -  unsigned i;
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				|  |  | -  bool got_shutdown = false;
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				|  |  | -  ShutdownCallback shutdown_cb(&got_shutdown);
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				|  |  | -
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				|  |  | -  attr.version = 2;
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				|  |  | -  attr.cq_completion_type = GRPC_CQ_CALLBACK;
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				|  |  | -  attr.cq_shutdown_cb = &shutdown_cb;
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				|  |  | -  while (state.KeepRunning()) {
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				|  |  | -    int sumtags = 0;
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				|  |  | -    int counter = 0;
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				|  |  | -    {
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				|  |  | -      // reset exec_ctx types
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				|  |  | -      grpc_core::ApplicationCallbackExecCtx callback_exec_ctx;
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				|  |  | -      grpc_core::ExecCtx exec_ctx;
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				|  |  | -      attr.cq_polling_type = GRPC_CQ_DEFAULT_POLLING;
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				|  |  | -      cc = grpc_completion_queue_create(
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				|  |  | -          grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
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				|  |  | -
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				|  |  | -      for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
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				|  |  | -        tags[i] = static_cast<void*>(grpc_core::New<TagCallback>(&counter, i));
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				|  |  | -        sumtags += i;
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				|  |  | -      }
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				|  |  | -
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				|  |  | -      for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
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				|  |  | -        GPR_ASSERT(grpc_cq_begin_op(cc, tags[i]));
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				|  |  | -        grpc_cq_end_op(cc, tags[i], GRPC_ERROR_NONE, do_nothing_end_completion,
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				|  |  | -                       nullptr, &completions[i]);
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				|  |  | -      }
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				|  |  | -
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				|  |  | -      shutdown_and_destroy(cc);
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				|  |  | -    }
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				|  |  | -    GPR_ASSERT(sumtags == counter);
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				|  |  | -    GPR_ASSERT(got_shutdown);
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				|  |  | -    got_shutdown = false;
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				|  |  | -  }
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				|  |  | -}
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				|  |  | -BENCHMARK(BM_Callback_CQ_Default_Polling)->Range(1, 128 * 1024);
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				|  |  | -
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				|  |  | -static void BM_Callback_CQ_Non_Listening(benchmark::State& state) {
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				|  |  | -  int tag_size = state.range(0);
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				|  |  | -  grpc_completion_queue* cc;
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				|  |  | -  void* tags[tag_size];
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				|  |  | -  grpc_cq_completion completions[GPR_ARRAY_SIZE(tags)];
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				|  |  | -  grpc_completion_queue_attributes attr;
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				|  |  | -  unsigned i;
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				|  |  | -  bool got_shutdown = false;
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				|  |  | -  ShutdownCallback shutdown_cb(&got_shutdown);
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				|  |  | -
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				|  |  | -  attr.version = 2;
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				|  |  | -  attr.cq_completion_type = GRPC_CQ_CALLBACK;
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				|  |  | -  attr.cq_shutdown_cb = &shutdown_cb;
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				|  |  | -  while (state.KeepRunning()) {
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				|  |  | -    int sumtags = 0;
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				|  |  | -    int counter = 0;
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				|  |  | -    {
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				|  |  | -      // reset exec_ctx types
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				|  |  | -      grpc_core::ApplicationCallbackExecCtx callback_exec_ctx;
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				|  |  | -      grpc_core::ExecCtx exec_ctx;
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				|  |  | -      attr.cq_polling_type = GRPC_CQ_NON_LISTENING;
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				|  |  | -      cc = grpc_completion_queue_create(
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				|  |  | -          grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
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				|  |  | -
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				|  |  | -      for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
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				|  |  | -        tags[i] = static_cast<void*>(grpc_core::New<TagCallback>(&counter, i));
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				|  |  | -        sumtags += i;
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				|  |  | -      }
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				|  |  | -
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				|  |  | -      for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
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				|  |  | -        GPR_ASSERT(grpc_cq_begin_op(cc, tags[i]));
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				|  |  | -        grpc_cq_end_op(cc, tags[i], GRPC_ERROR_NONE, do_nothing_end_completion,
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				|  |  | -                       nullptr, &completions[i]);
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				|  |  | -      }
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				|  |  | -
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				|  |  | -      shutdown_and_destroy(cc);
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				|  |  | -    }
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				|  |  | -    GPR_ASSERT(sumtags == counter);
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				|  |  | -    GPR_ASSERT(got_shutdown);
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				|  |  | -    got_shutdown = false;
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				|  |  | -  }
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				|  |  | -}
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				|  |  | -BENCHMARK(BM_Callback_CQ_Non_Listening)->Range(1, 128 * 1024);
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				|  |  | -
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				|  |  | -static void BM_Callback_CQ_Non_Polling(benchmark::State& state) {
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				|  |  | -  int tag_size = state.range(0);
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				|  |  | -  grpc_completion_queue* cc;
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				|  |  | -  void* tags[tag_size];
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				|  |  | -  grpc_cq_completion completions[GPR_ARRAY_SIZE(tags)];
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				|  |  | -  grpc_completion_queue_attributes attr;
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				|  |  | -  unsigned i;
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				|  |  | -  bool got_shutdown = false;
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				|  |  | -  ShutdownCallback shutdown_cb(&got_shutdown);
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				|  |  | -
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				|  |  | -  attr.version = 2;
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				|  |  | -  attr.cq_completion_type = GRPC_CQ_CALLBACK;
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				|  |  | -  attr.cq_shutdown_cb = &shutdown_cb;
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				|  |  | -  while (state.KeepRunning()) {
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				|  |  | -    int sumtags = 0;
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				|  |  | -    int counter = 0;
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				|  |  | -    {
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				|  |  | -      // reset exec_ctx types
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				|  |  | -      grpc_core::ApplicationCallbackExecCtx callback_exec_ctx;
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				|  |  | -      grpc_core::ExecCtx exec_ctx;
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				|  |  | -      attr.cq_polling_type = GRPC_CQ_DEFAULT_POLLING;
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				|  |  | -      cc = grpc_completion_queue_create(
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				|  |  | -          grpc_completion_queue_factory_lookup(&attr), &attr, nullptr);
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				|  |  | -
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				|  |  | -      for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
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				|  |  | -        tags[i] = static_cast<void*>(grpc_core::New<TagCallback>(&counter, i));
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				|  |  | -        sumtags += i;
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				|  |  | -      }
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				|  |  | -
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				|  |  | -      for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
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				|  |  | -        GPR_ASSERT(grpc_cq_begin_op(cc, tags[i]));
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				|  |  | -        grpc_cq_end_op(cc, tags[i], GRPC_ERROR_NONE, do_nothing_end_completion,
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				|  |  | -                       nullptr, &completions[i]);
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				|  |  | -      }
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				|  |  | -
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				|  |  | -      shutdown_and_destroy(cc);
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				|  |  | -    }
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				|  |  | -    GPR_ASSERT(sumtags == counter);
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				|  |  | -    GPR_ASSERT(got_shutdown);
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				|  |  | -    got_shutdown = false;
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				|  |  | -  }
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				|  |  | -}
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				|  |  | -BENCHMARK(BM_Callback_CQ_Non_Polling)->Range(1, 128 * 1024);
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				|  |  | -
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				|  |  | -}  // namespace testing
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				|  |  | -}  // namespace grpc
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				|  |  | -
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				|  |  | -// Some distros have RunSpecifiedBenchmarks under the benchmark namespace,
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				|  |  | -// and others do not. This allows us to support both modes.
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				|  |  | -namespace benchmark {
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				|  |  | -void RunTheBenchmarksNamespaced() { RunSpecifiedBenchmarks(); }
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				|  |  | -}  // namespace benchmark
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				|  |  | -
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				|  |  | -int main(int argc, char** argv) {
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				|  |  | -  LibraryInitializer libInit;
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				|  |  | -  ::benchmark::Initialize(&argc, argv);
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				|  |  | -  ::grpc::testing::InitTest(&argc, &argv, false);
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				|  |  | -  benchmark::RunTheBenchmarksNamespaced();
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				|  |  | -  return 0;
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				|  |  | -}
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