| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
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| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
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| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| */ |
| |
| #ifndef TEST_QPS_CLIENT_H |
| #define TEST_QPS_CLIENT_H |
| |
| #include "test/cpp/qps/histogram.h" |
| #include "test/cpp/qps/timer.h" |
| #include "test/cpp/qps/qpstest.pb.h" |
| |
| #include <condition_variable> |
| #include <mutex> |
| |
| namespace grpc { |
| namespace testing { |
| |
| class Client { |
| public: |
| explicit Client(const ClientConfig& config) : timer_(new Timer) { |
| for (int i = 0; i < config.client_channels(); i++) { |
| channels_.push_back(ClientChannelInfo( |
| config.server_targets(i % config.server_targets_size()), config)); |
| } |
| request_.set_response_type(grpc::testing::PayloadType::COMPRESSABLE); |
| request_.set_response_size(config.payload_size()); |
| } |
| virtual ~Client() {} |
| |
| ClientStats Mark() { |
| Histogram latencies; |
| std::vector<Histogram> to_merge(threads_.size()); |
| for (size_t i = 0; i < threads_.size(); i++) { |
| threads_[i]->BeginSwap(&to_merge[i]); |
| } |
| std::unique_ptr<Timer> timer(new Timer); |
| timer_.swap(timer); |
| for (size_t i = 0; i < threads_.size(); i++) { |
| threads_[i]->EndSwap(); |
| latencies.Merge(&to_merge[i]); |
| } |
| |
| auto timer_result = timer->Mark(); |
| |
| ClientStats stats; |
| latencies.FillProto(stats.mutable_latencies()); |
| stats.set_time_elapsed(timer_result.wall); |
| stats.set_time_system(timer_result.system); |
| stats.set_time_user(timer_result.user); |
| return stats; |
| } |
| |
| protected: |
| SimpleRequest request_; |
| |
| class ClientChannelInfo { |
| public: |
| ClientChannelInfo(const grpc::string& target, const ClientConfig& config) |
| : channel_(CreateTestChannel(target, config.enable_ssl())), |
| stub_(TestService::NewStub(channel_)) {} |
| ChannelInterface* get_channel() { return channel_.get(); } |
| TestService::Stub* get_stub() { return stub_.get(); } |
| |
| private: |
| std::shared_ptr<ChannelInterface> channel_; |
| std::unique_ptr<TestService::Stub> stub_; |
| }; |
| std::vector<ClientChannelInfo> channels_; |
| |
| void StartThreads(size_t num_threads) { |
| for (size_t i = 0; i < num_threads; i++) { |
| threads_.emplace_back(new Thread(this, i)); |
| } |
| } |
| |
| void EndThreads() { threads_.clear(); } |
| |
| virtual bool ThreadFunc(Histogram* histogram, size_t thread_idx) = 0; |
| |
| private: |
| class Thread { |
| public: |
| Thread(Client* client, size_t idx) |
| : done_(false), |
| new_(nullptr), |
| impl_([this, idx, client]() { |
| for (;;) { |
| // run the loop body |
| bool thread_still_ok = client->ThreadFunc(&histogram_, idx); |
| // lock, see if we're done |
| std::lock_guard<std::mutex> g(mu_); |
| if (!thread_still_ok) { |
| gpr_log(GPR_ERROR, "Finishing client thread due to RPC error"); |
| done_ = true; |
| } |
| if (done_) {return;} |
| // check if we're marking, swap out the histogram if so |
| if (new_) { |
| new_->Swap(&histogram_); |
| new_ = nullptr; |
| cv_.notify_one(); |
| } |
| } |
| }) {} |
| |
| ~Thread() { |
| { |
| std::lock_guard<std::mutex> g(mu_); |
| done_ = true; |
| } |
| impl_.join(); |
| } |
| |
| void BeginSwap(Histogram* n) { |
| std::lock_guard<std::mutex> g(mu_); |
| new_ = n; |
| } |
| |
| void EndSwap() { |
| std::unique_lock<std::mutex> g(mu_); |
| cv_.wait(g, [this]() { return new_ == nullptr; }); |
| } |
| |
| private: |
| Thread(const Thread&); |
| Thread& operator=(const Thread&); |
| |
| TestService::Stub* stub_; |
| ClientConfig config_; |
| std::mutex mu_; |
| std::condition_variable cv_; |
| bool done_; |
| Histogram* new_; |
| Histogram histogram_; |
| std::thread impl_; |
| }; |
| |
| std::vector<std::unique_ptr<Thread>> threads_; |
| std::unique_ptr<Timer> timer_; |
| }; |
| |
| std::unique_ptr<Client> |
| CreateSynchronousUnaryClient(const ClientConfig& args); |
| std::unique_ptr<Client> |
| CreateSynchronousStreamingClient(const ClientConfig& args); |
| std::unique_ptr<Client> CreateAsyncUnaryClient(const ClientConfig& args); |
| std::unique_ptr<Client> CreateAsyncStreamingClient(const ClientConfig& args); |
| |
| } // namespace testing |
| } // namespace grpc |
| |
| #endif |