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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
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231 lines
6.5 KiB
231 lines
6.5 KiB
/* |
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* |
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* Copyright 2019 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 "src/core/lib/iomgr/executor/mpmcqueue.h" |
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#include <grpc/grpc.h> |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/log.h> |
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#include "src/core/lib/gpr/useful.h" |
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#include "src/core/lib/gprpp/thd.h" |
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#include "test/core/util/test_config.h" |
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#define THREAD_SMALL_ITERATION 100 |
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#define THREAD_LARGE_ITERATION 10000 |
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static void test_no_op(void) { |
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gpr_log(GPR_DEBUG, "test_no_op"); |
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grpc_core::MPMCQueue mpmcqueue; |
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gpr_log(GPR_DEBUG, "Checking count..."); |
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GPR_ASSERT(mpmcqueue.count() == 0); |
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gpr_log(GPR_DEBUG, "Done."); |
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} |
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// Testing items for queue |
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struct WorkItem { |
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int index; |
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bool done; |
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WorkItem(int i) : index(i) { done = false; } |
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}; |
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static void test_small_queue(void) { |
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gpr_log(GPR_DEBUG, "test_small_queue"); |
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grpc_core::MPMCQueue small_queue; |
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for (int i = 0; i < THREAD_SMALL_ITERATION; ++i) { |
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small_queue.Put(static_cast<void*>(new WorkItem(i))); |
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} |
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GPR_ASSERT(small_queue.count() == THREAD_SMALL_ITERATION); |
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// Get items out in FIFO order |
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for (int i = 0; i < THREAD_SMALL_ITERATION; ++i) { |
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WorkItem* item = static_cast<WorkItem*>(small_queue.Get()); |
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GPR_ASSERT(i == item->index); |
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delete item; |
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} |
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gpr_log(GPR_DEBUG, "Done."); |
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} |
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static void test_get_thd(void* args) { |
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grpc_core::MPMCQueue* mpmcqueue = static_cast<grpc_core::MPMCQueue*>(args); |
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// count number of Get() called in this thread |
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int count = 0; |
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int last_index = -1; |
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WorkItem* item; |
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while ((item = static_cast<WorkItem*>(mpmcqueue->Get())) != nullptr) { |
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count++; |
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GPR_ASSERT(item->index > last_index); |
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last_index = item->index; |
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GPR_ASSERT(!item->done); |
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delete item; |
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} |
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gpr_log(GPR_DEBUG, "test_get_thd: %d times of Get() called.", count); |
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} |
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static void test_get_empty(void) { |
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gpr_log(GPR_DEBUG, "test_get_empty"); |
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grpc_core::MPMCQueue mpmcqueue; |
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const int num_threads = 10; |
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grpc_core::Thread thds[num_threads]; |
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// Fork threads. Threads should block at the beginning since queue is empty. |
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for (int i = 0; i < num_threads; ++i) { |
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thds[i] = grpc_core::Thread("mpmcq_test_ge_thd", test_get_thd, &mpmcqueue); |
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thds[i].Start(); |
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} |
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for (int i = 0; i < THREAD_LARGE_ITERATION; ++i) { |
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mpmcqueue.Put(static_cast<void*>(new WorkItem(i))); |
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} |
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gpr_log(GPR_DEBUG, "Terminating threads..."); |
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for (int i = 0; i < num_threads; ++i) { |
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mpmcqueue.Put(nullptr); |
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} |
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for (int i = 0; i < num_threads; ++i) { |
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thds[i].Join(); |
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} |
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gpr_log(GPR_DEBUG, "Done."); |
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} |
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static void test_large_queue(void) { |
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gpr_log(GPR_DEBUG, "test_large_queue"); |
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grpc_core::MPMCQueue large_queue; |
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for (int i = 0; i < THREAD_LARGE_ITERATION; ++i) { |
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large_queue.Put(static_cast<void*>(new WorkItem(i))); |
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} |
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GPR_ASSERT(large_queue.count() == THREAD_LARGE_ITERATION); |
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for (int i = 0; i < THREAD_LARGE_ITERATION; ++i) { |
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WorkItem* item = static_cast<WorkItem*>(large_queue.Get()); |
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GPR_ASSERT(i == item->index); |
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delete item; |
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} |
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} |
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// Thread for put items into queue |
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class WorkThread { |
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public: |
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WorkThread(grpc_core::MPMCQueue* mpmcqueue, int start_index, int num_items) |
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: start_index_(start_index), |
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num_items_(num_items), |
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mpmcqueue_(mpmcqueue) { |
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items_ = nullptr; |
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thd_ = grpc_core::Thread( |
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"mpmcq_test_mt_put_thd", |
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[](void* th) { static_cast<WorkThread*>(th)->Run(); }, this); |
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} |
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~WorkThread() { |
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for (int i = 0; i < num_items_; ++i) { |
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GPR_ASSERT(items_[i]->done); |
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delete items_[i]; |
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} |
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delete[] items_; |
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} |
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void Start() { thd_.Start(); } |
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void Join() { thd_.Join(); } |
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private: |
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void Run() { |
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items_ = new WorkItem*[num_items_]; |
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for (int i = 0; i < num_items_; ++i) { |
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items_[i] = new WorkItem(start_index_ + i); |
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mpmcqueue_->Put(items_[i]); |
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} |
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} |
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int start_index_; |
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int num_items_; |
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grpc_core::MPMCQueue* mpmcqueue_; |
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grpc_core::Thread thd_; |
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WorkItem** items_; |
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}; |
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static void test_many_get_thd(void* args) { |
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grpc_core::MPMCQueue* mpmcqueue = static_cast<grpc_core::MPMCQueue*>(args); |
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// count number of Get() called in this thread |
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int count = 0; |
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WorkItem* item; |
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while ((item = static_cast<WorkItem*>(mpmcqueue->Get())) != nullptr) { |
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count++; |
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GPR_ASSERT(!item->done); |
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item->done = true; |
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} |
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gpr_log(GPR_DEBUG, "test_many_get_thd: %d times of Get() called.", count); |
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} |
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static void test_many_thread(void) { |
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gpr_log(GPR_DEBUG, "test_many_thread"); |
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const int num_work_thd = 10; |
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const int num_get_thd = 20; |
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grpc_core::MPMCQueue mpmcqueue; |
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WorkThread** work_thds = new WorkThread*[num_work_thd]; |
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grpc_core::Thread get_thds[num_get_thd]; |
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gpr_log(GPR_DEBUG, "Fork WorkThread..."); |
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for (int i = 0; i < num_work_thd; ++i) { |
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work_thds[i] = new WorkThread(&mpmcqueue, i * THREAD_LARGE_ITERATION, |
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THREAD_LARGE_ITERATION); |
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work_thds[i]->Start(); |
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} |
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gpr_log(GPR_DEBUG, "WorkThread Started."); |
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gpr_log(GPR_DEBUG, "For Getter Thread..."); |
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for (int i = 0; i < num_get_thd; ++i) { |
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get_thds[i] = grpc_core::Thread("mpmcq_test_mt_get_thd", test_many_get_thd, |
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&mpmcqueue); |
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get_thds[i].Start(); |
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} |
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gpr_log(GPR_DEBUG, "Getter Thread Started."); |
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gpr_log(GPR_DEBUG, "Waiting WorkThread to finish..."); |
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for (int i = 0; i < num_work_thd; ++i) { |
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work_thds[i]->Join(); |
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} |
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gpr_log(GPR_DEBUG, "All WorkThread Terminated."); |
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gpr_log(GPR_DEBUG, "Terminating Getter Thread..."); |
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for (int i = 0; i < num_get_thd; ++i) { |
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mpmcqueue.Put(nullptr); |
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} |
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for (int i = 0; i < num_get_thd; ++i) { |
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get_thds[i].Join(); |
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} |
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gpr_log(GPR_DEBUG, "All Getter Thread Terminated."); |
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gpr_log(GPR_DEBUG, "Checking WorkItems and Cleaning Up..."); |
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for (int i = 0; i < num_work_thd; ++i) { |
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delete work_thds[i]; |
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} |
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delete[] work_thds; |
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gpr_log(GPR_DEBUG, "Done."); |
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} |
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int main(int argc, char** argv) { |
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grpc::testing::TestEnvironment env(argc, argv); |
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grpc_init(); |
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gpr_set_log_verbosity(GPR_LOG_SEVERITY_DEBUG); |
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test_no_op(); |
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test_small_queue(); |
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test_get_empty(); |
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test_large_queue(); |
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test_many_thread(); |
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grpc_shutdown(); |
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return 0; |
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}
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