| /* |
| * |
| * 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 <forward_list> |
| #include <functional> |
| #include <list> |
| #include <memory> |
| #include <mutex> |
| #include <sstream> |
| #include <string> |
| #include <thread> |
| #include <vector> |
| |
| #include <grpc++/alarm.h> |
| #include <grpc++/channel.h> |
| #include <grpc++/client_context.h> |
| #include <grpc++/generic/generic_stub.h> |
| #include <grpc/grpc.h> |
| #include <grpc/support/cpu.h> |
| #include <grpc/support/log.h> |
| |
| #include "src/core/lib/surface/completion_queue.h" |
| #include "src/proto/grpc/testing/services.grpc.pb.h" |
| #include "test/cpp/qps/client.h" |
| #include "test/cpp/qps/usage_timer.h" |
| #include "test/cpp/util/create_test_channel.h" |
| |
| namespace grpc { |
| namespace testing { |
| |
| class ClientRpcContext { |
| public: |
| ClientRpcContext() {} |
| virtual ~ClientRpcContext() {} |
| // next state, return false if done. Collect stats when appropriate |
| virtual bool RunNextState(bool, HistogramEntry* entry) = 0; |
| virtual void StartNewClone(CompletionQueue* cq) = 0; |
| static void* tag(ClientRpcContext* c) { return reinterpret_cast<void*>(c); } |
| static ClientRpcContext* detag(void* t) { |
| return reinterpret_cast<ClientRpcContext*>(t); |
| } |
| |
| virtual void Start(CompletionQueue* cq, const ClientConfig& config) = 0; |
| virtual void TryCancel() = 0; |
| }; |
| |
| template <class RequestType, class ResponseType> |
| class ClientRpcContextUnaryImpl : public ClientRpcContext { |
| public: |
| ClientRpcContextUnaryImpl( |
| BenchmarkService::Stub* stub, const RequestType& req, |
| std::function<gpr_timespec()> next_issue, |
| std::function< |
| std::unique_ptr<grpc::ClientAsyncResponseReader<ResponseType>>( |
| BenchmarkService::Stub*, grpc::ClientContext*, const RequestType&, |
| CompletionQueue*)> |
| prepare_req, |
| std::function<void(grpc::Status, ResponseType*, HistogramEntry*)> on_done) |
| : context_(), |
| stub_(stub), |
| cq_(nullptr), |
| req_(req), |
| response_(), |
| next_state_(State::READY), |
| callback_(on_done), |
| next_issue_(next_issue), |
| prepare_req_(prepare_req) {} |
| ~ClientRpcContextUnaryImpl() override {} |
| void Start(CompletionQueue* cq, const ClientConfig& config) override { |
| StartInternal(cq); |
| } |
| bool RunNextState(bool ok, HistogramEntry* entry) override { |
| switch (next_state_) { |
| case State::READY: |
| start_ = UsageTimer::Now(); |
| response_reader_ = prepare_req_(stub_, &context_, req_, cq_); |
| response_reader_->StartCall(); |
| next_state_ = State::RESP_DONE; |
| response_reader_->Finish(&response_, &status_, |
| ClientRpcContext::tag(this)); |
| return true; |
| case State::RESP_DONE: |
| if (status_.ok()) { |
| entry->set_value((UsageTimer::Now() - start_) * 1e9); |
| } |
| callback_(status_, &response_, entry); |
| next_state_ = State::INVALID; |
| return false; |
| default: |
| GPR_ASSERT(false); |
| return false; |
| } |
| } |
| void StartNewClone(CompletionQueue* cq) override { |
| auto* clone = new ClientRpcContextUnaryImpl(stub_, req_, next_issue_, |
| prepare_req_, callback_); |
| clone->StartInternal(cq); |
| } |
| void TryCancel() override { context_.TryCancel(); } |
| |
| private: |
| grpc::ClientContext context_; |
| BenchmarkService::Stub* stub_; |
| CompletionQueue* cq_; |
| std::unique_ptr<Alarm> alarm_; |
| const RequestType& req_; |
| ResponseType response_; |
| enum State { INVALID, READY, RESP_DONE }; |
| State next_state_; |
| std::function<void(grpc::Status, ResponseType*, HistogramEntry*)> callback_; |
| std::function<gpr_timespec()> next_issue_; |
| std::function<std::unique_ptr<grpc::ClientAsyncResponseReader<ResponseType>>( |
| BenchmarkService::Stub*, grpc::ClientContext*, const RequestType&, |
| CompletionQueue*)> |
| prepare_req_; |
| grpc::Status status_; |
| double start_; |
| std::unique_ptr<grpc::ClientAsyncResponseReader<ResponseType>> |
| response_reader_; |
| |
| void StartInternal(CompletionQueue* cq) { |
| cq_ = cq; |
| if (!next_issue_) { // ready to issue |
| RunNextState(true, nullptr); |
| } else { // wait for the issue time |
| alarm_.reset(new Alarm); |
| alarm_->Set(cq_, next_issue_(), ClientRpcContext::tag(this)); |
| } |
| } |
| }; |
| |
| template <class StubType, class RequestType> |
| class AsyncClient : public ClientImpl<StubType, RequestType> { |
| // Specify which protected members we are using since there is no |
| // member name resolution until the template types are fully resolved |
| public: |
| using Client::NextIssuer; |
| using Client::SetupLoadTest; |
| using Client::closed_loop_; |
| using ClientImpl<StubType, RequestType>::cores_; |
| using ClientImpl<StubType, RequestType>::channels_; |
| using ClientImpl<StubType, RequestType>::request_; |
| AsyncClient(const ClientConfig& config, |
| std::function<ClientRpcContext*( |
| StubType*, std::function<gpr_timespec()> next_issue, |
| const RequestType&)> |
| setup_ctx, |
| std::function<std::unique_ptr<StubType>(std::shared_ptr<Channel>)> |
| create_stub) |
| : ClientImpl<StubType, RequestType>(config, create_stub), |
| num_async_threads_(NumThreads(config)) { |
| SetupLoadTest(config, num_async_threads_); |
| |
| int tpc = std::max(1, config.threads_per_cq()); // 1 if unspecified |
| int num_cqs = (num_async_threads_ + tpc - 1) / tpc; // ceiling operator |
| for (int i = 0; i < num_cqs; i++) { |
| cli_cqs_.emplace_back(new CompletionQueue); |
| } |
| |
| for (int i = 0; i < num_async_threads_; i++) { |
| cq_.emplace_back(i % cli_cqs_.size()); |
| next_issuers_.emplace_back(NextIssuer(i)); |
| shutdown_state_.emplace_back(new PerThreadShutdownState()); |
| } |
| |
| int t = 0; |
| for (int ch = 0; ch < config.client_channels(); ch++) { |
| for (int i = 0; i < config.outstanding_rpcs_per_channel(); i++) { |
| auto* cq = cli_cqs_[t].get(); |
| auto ctx = |
| setup_ctx(channels_[ch].get_stub(), next_issuers_[t], request_); |
| ctx->Start(cq, config); |
| } |
| t = (t + 1) % cli_cqs_.size(); |
| } |
| } |
| virtual ~AsyncClient() { |
| for (auto cq = cli_cqs_.begin(); cq != cli_cqs_.end(); cq++) { |
| void* got_tag; |
| bool ok; |
| while ((*cq)->Next(&got_tag, &ok)) { |
| delete ClientRpcContext::detag(got_tag); |
| } |
| } |
| } |
| |
| int GetPollCount() override { |
| int count = 0; |
| for (auto cq = cli_cqs_.begin(); cq != cli_cqs_.end(); cq++) { |
| count += grpc_get_cq_poll_num((*cq)->cq()); |
| } |
| return count; |
| } |
| |
| protected: |
| const int num_async_threads_; |
| |
| private: |
| struct PerThreadShutdownState { |
| mutable std::mutex mutex; |
| bool shutdown; |
| PerThreadShutdownState() : shutdown(false) {} |
| }; |
| |
| int NumThreads(const ClientConfig& config) { |
| int num_threads = config.async_client_threads(); |
| if (num_threads <= 0) { // Use dynamic sizing |
| num_threads = cores_; |
| gpr_log(GPR_INFO, "Sizing async client to %d threads", num_threads); |
| } |
| return num_threads; |
| } |
| void DestroyMultithreading() override final { |
| for (auto ss = shutdown_state_.begin(); ss != shutdown_state_.end(); ++ss) { |
| std::lock_guard<std::mutex> lock((*ss)->mutex); |
| (*ss)->shutdown = true; |
| } |
| for (auto cq = cli_cqs_.begin(); cq != cli_cqs_.end(); cq++) { |
| (*cq)->Shutdown(); |
| } |
| this->EndThreads(); // this needed for resolution |
| } |
| |
| ClientRpcContext* ProcessTag(size_t thread_idx, void* tag) { |
| ClientRpcContext* ctx = ClientRpcContext::detag(tag); |
| if (shutdown_state_[thread_idx]->shutdown) { |
| ctx->TryCancel(); |
| delete ctx; |
| bool ok; |
| while (cli_cqs_[cq_[thread_idx]]->Next(&tag, &ok)) { |
| ctx = ClientRpcContext::detag(tag); |
| ctx->TryCancel(); |
| delete ctx; |
| } |
| return nullptr; |
| } |
| return ctx; |
| } |
| |
| void ThreadFunc(size_t thread_idx, Client::Thread* t) override final { |
| void* got_tag; |
| bool ok; |
| |
| HistogramEntry entry; |
| HistogramEntry* entry_ptr = &entry; |
| if (!cli_cqs_[cq_[thread_idx]]->Next(&got_tag, &ok)) { |
| return; |
| } |
| std::mutex* shutdown_mu = &shutdown_state_[thread_idx]->mutex; |
| shutdown_mu->lock(); |
| ClientRpcContext* ctx = ProcessTag(thread_idx, got_tag); |
| if (ctx == nullptr) { |
| shutdown_mu->unlock(); |
| return; |
| } |
| while (cli_cqs_[cq_[thread_idx]]->DoThenAsyncNext( |
| [&, ctx, ok, entry_ptr, shutdown_mu]() { |
| if (!ctx->RunNextState(ok, entry_ptr)) { |
| // The RPC and callback are done, so clone the ctx |
| // and kickstart the new one |
| ctx->StartNewClone(cli_cqs_[cq_[thread_idx]].get()); |
| delete ctx; |
| } |
| shutdown_mu->unlock(); |
| }, |
| &got_tag, &ok, gpr_inf_future(GPR_CLOCK_REALTIME))) { |
| t->UpdateHistogram(entry_ptr); |
| entry = HistogramEntry(); |
| shutdown_mu->lock(); |
| ctx = ProcessTag(thread_idx, got_tag); |
| if (ctx == nullptr) { |
| shutdown_mu->unlock(); |
| return; |
| } |
| } |
| } |
| |
| std::vector<std::unique_ptr<CompletionQueue>> cli_cqs_; |
| std::vector<int> cq_; |
| std::vector<std::function<gpr_timespec()>> next_issuers_; |
| std::vector<std::unique_ptr<PerThreadShutdownState>> shutdown_state_; |
| }; |
| |
| static std::unique_ptr<BenchmarkService::Stub> BenchmarkStubCreator( |
| std::shared_ptr<Channel> ch) { |
| return BenchmarkService::NewStub(ch); |
| } |
| |
| class AsyncUnaryClient final |
| : public AsyncClient<BenchmarkService::Stub, SimpleRequest> { |
| public: |
| explicit AsyncUnaryClient(const ClientConfig& config) |
| : AsyncClient<BenchmarkService::Stub, SimpleRequest>( |
| config, SetupCtx, BenchmarkStubCreator) { |
| StartThreads(num_async_threads_); |
| } |
| ~AsyncUnaryClient() override {} |
| |
| private: |
| static void CheckDone(grpc::Status s, SimpleResponse* response, |
| HistogramEntry* entry) { |
| entry->set_status(s.error_code()); |
| } |
| static std::unique_ptr<grpc::ClientAsyncResponseReader<SimpleResponse>> |
| PrepareReq(BenchmarkService::Stub* stub, grpc::ClientContext* ctx, |
| const SimpleRequest& request, CompletionQueue* cq) { |
| return stub->PrepareAsyncUnaryCall(ctx, request, cq); |
| }; |
| static ClientRpcContext* SetupCtx(BenchmarkService::Stub* stub, |
| std::function<gpr_timespec()> next_issue, |
| const SimpleRequest& req) { |
| return new ClientRpcContextUnaryImpl<SimpleRequest, SimpleResponse>( |
| stub, req, next_issue, AsyncUnaryClient::PrepareReq, |
| AsyncUnaryClient::CheckDone); |
| } |
| }; |
| |
| template <class RequestType, class ResponseType> |
| class ClientRpcContextStreamingPingPongImpl : public ClientRpcContext { |
| public: |
| ClientRpcContextStreamingPingPongImpl( |
| BenchmarkService::Stub* stub, const RequestType& req, |
| std::function<gpr_timespec()> next_issue, |
| std::function<std::unique_ptr< |
| grpc::ClientAsyncReaderWriter<RequestType, ResponseType>>( |
| BenchmarkService::Stub*, grpc::ClientContext*, CompletionQueue*)> |
| prepare_req, |
| std::function<void(grpc::Status, ResponseType*)> on_done) |
| : context_(), |
| stub_(stub), |
| cq_(nullptr), |
| req_(req), |
| response_(), |
| next_state_(State::INVALID), |
| callback_(on_done), |
| next_issue_(next_issue), |
| prepare_req_(prepare_req) {} |
| ~ClientRpcContextStreamingPingPongImpl() override {} |
| void Start(CompletionQueue* cq, const ClientConfig& config) override { |
| StartInternal(cq, config.messages_per_stream()); |
| } |
| bool RunNextState(bool ok, HistogramEntry* entry) override { |
| while (true) { |
| switch (next_state_) { |
| case State::STREAM_IDLE: |
| if (!next_issue_) { // ready to issue |
| next_state_ = State::READY_TO_WRITE; |
| } else { |
| next_state_ = State::WAIT; |
| } |
| break; // loop around, don't return |
| case State::WAIT: |
| next_state_ = State::READY_TO_WRITE; |
| alarm_.reset(new Alarm); |
| alarm_->Set(cq_, next_issue_(), ClientRpcContext::tag(this)); |
| return true; |
| case State::READY_TO_WRITE: |
| if (!ok) { |
| return false; |
| } |
| start_ = UsageTimer::Now(); |
| next_state_ = State::WRITE_DONE; |
| stream_->Write(req_, ClientRpcContext::tag(this)); |
| return true; |
| case State::WRITE_DONE: |
| if (!ok) { |
| return false; |
| } |
| next_state_ = State::READ_DONE; |
| stream_->Read(&response_, ClientRpcContext::tag(this)); |
| return true; |
| break; |
| case State::READ_DONE: |
| entry->set_value((UsageTimer::Now() - start_) * 1e9); |
| callback_(status_, &response_); |
| if ((messages_per_stream_ != 0) && |
| (++messages_issued_ >= messages_per_stream_)) { |
| next_state_ = State::WRITES_DONE_DONE; |
| stream_->WritesDone(ClientRpcContext::tag(this)); |
| return true; |
| } |
| next_state_ = State::STREAM_IDLE; |
| break; // loop around |
| case State::WRITES_DONE_DONE: |
| next_state_ = State::FINISH_DONE; |
| stream_->Finish(&status_, ClientRpcContext::tag(this)); |
| return true; |
| case State::FINISH_DONE: |
| next_state_ = State::INVALID; |
| return false; |
| break; |
| default: |
| GPR_ASSERT(false); |
| return false; |
| } |
| } |
| } |
| void StartNewClone(CompletionQueue* cq) override { |
| auto* clone = new ClientRpcContextStreamingPingPongImpl( |
| stub_, req_, next_issue_, prepare_req_, callback_); |
| clone->StartInternal(cq, messages_per_stream_); |
| } |
| void TryCancel() override { context_.TryCancel(); } |
| |
| private: |
| grpc::ClientContext context_; |
| BenchmarkService::Stub* stub_; |
| CompletionQueue* cq_; |
| std::unique_ptr<Alarm> alarm_; |
| const RequestType& req_; |
| ResponseType response_; |
| enum State { |
| INVALID, |
| STREAM_IDLE, |
| WAIT, |
| READY_TO_WRITE, |
| WRITE_DONE, |
| READ_DONE, |
| WRITES_DONE_DONE, |
| FINISH_DONE |
| }; |
| State next_state_; |
| std::function<void(grpc::Status, ResponseType*)> callback_; |
| std::function<gpr_timespec()> next_issue_; |
| std::function< |
| std::unique_ptr<grpc::ClientAsyncReaderWriter<RequestType, ResponseType>>( |
| BenchmarkService::Stub*, grpc::ClientContext*, CompletionQueue*)> |
| prepare_req_; |
| grpc::Status status_; |
| double start_; |
| std::unique_ptr<grpc::ClientAsyncReaderWriter<RequestType, ResponseType>> |
| stream_; |
| |
| // Allow a limit on number of messages in a stream |
| int messages_per_stream_; |
| int messages_issued_; |
| |
| void StartInternal(CompletionQueue* cq, int messages_per_stream) { |
| cq_ = cq; |
| messages_per_stream_ = messages_per_stream; |
| messages_issued_ = 0; |
| stream_ = prepare_req_(stub_, &context_, cq); |
| next_state_ = State::STREAM_IDLE; |
| stream_->StartCall(ClientRpcContext::tag(this)); |
| } |
| }; |
| |
| class AsyncStreamingPingPongClient final |
| : public AsyncClient<BenchmarkService::Stub, SimpleRequest> { |
| public: |
| explicit AsyncStreamingPingPongClient(const ClientConfig& config) |
| : AsyncClient<BenchmarkService::Stub, SimpleRequest>( |
| config, SetupCtx, BenchmarkStubCreator) { |
| StartThreads(num_async_threads_); |
| } |
| |
| ~AsyncStreamingPingPongClient() override {} |
| |
| private: |
| static void CheckDone(grpc::Status s, SimpleResponse* response) {} |
| static std::unique_ptr< |
| grpc::ClientAsyncReaderWriter<SimpleRequest, SimpleResponse>> |
| PrepareReq(BenchmarkService::Stub* stub, grpc::ClientContext* ctx, |
| CompletionQueue* cq) { |
| auto stream = stub->PrepareAsyncStreamingCall(ctx, cq); |
| return stream; |
| }; |
| static ClientRpcContext* SetupCtx(BenchmarkService::Stub* stub, |
| std::function<gpr_timespec()> next_issue, |
| const SimpleRequest& req) { |
| return new ClientRpcContextStreamingPingPongImpl<SimpleRequest, |
| SimpleResponse>( |
| stub, req, next_issue, AsyncStreamingPingPongClient::PrepareReq, |
| AsyncStreamingPingPongClient::CheckDone); |
| } |
| }; |
| |
| template <class RequestType, class ResponseType> |
| class ClientRpcContextStreamingFromClientImpl : public ClientRpcContext { |
| public: |
| ClientRpcContextStreamingFromClientImpl( |
| BenchmarkService::Stub* stub, const RequestType& req, |
| std::function<gpr_timespec()> next_issue, |
| std::function<std::unique_ptr<grpc::ClientAsyncWriter<RequestType>>( |
| BenchmarkService::Stub*, grpc::ClientContext*, ResponseType*, |
| CompletionQueue*)> |
| prepare_req, |
| std::function<void(grpc::Status, ResponseType*)> on_done) |
| : context_(), |
| stub_(stub), |
| cq_(nullptr), |
| req_(req), |
| response_(), |
| next_state_(State::INVALID), |
| callback_(on_done), |
| next_issue_(next_issue), |
| prepare_req_(prepare_req) {} |
| ~ClientRpcContextStreamingFromClientImpl() override {} |
| void Start(CompletionQueue* cq, const ClientConfig& config) override { |
| StartInternal(cq); |
| } |
| bool RunNextState(bool ok, HistogramEntry* entry) override { |
| while (true) { |
| switch (next_state_) { |
| case State::STREAM_IDLE: |
| if (!next_issue_) { // ready to issue |
| next_state_ = State::READY_TO_WRITE; |
| } else { |
| next_state_ = State::WAIT; |
| } |
| break; // loop around, don't return |
| case State::WAIT: |
| alarm_.reset(new Alarm); |
| alarm_->Set(cq_, next_issue_(), ClientRpcContext::tag(this)); |
| next_state_ = State::READY_TO_WRITE; |
| return true; |
| case State::READY_TO_WRITE: |
| if (!ok) { |
| return false; |
| } |
| start_ = UsageTimer::Now(); |
| next_state_ = State::WRITE_DONE; |
| stream_->Write(req_, ClientRpcContext::tag(this)); |
| return true; |
| case State::WRITE_DONE: |
| if (!ok) { |
| return false; |
| } |
| entry->set_value((UsageTimer::Now() - start_) * 1e9); |
| next_state_ = State::STREAM_IDLE; |
| break; // loop around |
| default: |
| GPR_ASSERT(false); |
| return false; |
| } |
| } |
| } |
| void StartNewClone(CompletionQueue* cq) override { |
| auto* clone = new ClientRpcContextStreamingFromClientImpl( |
| stub_, req_, next_issue_, prepare_req_, callback_); |
| clone->StartInternal(cq); |
| } |
| void TryCancel() override { context_.TryCancel(); } |
| |
| private: |
| grpc::ClientContext context_; |
| BenchmarkService::Stub* stub_; |
| CompletionQueue* cq_; |
| std::unique_ptr<Alarm> alarm_; |
| const RequestType& req_; |
| ResponseType response_; |
| enum State { |
| INVALID, |
| STREAM_IDLE, |
| WAIT, |
| READY_TO_WRITE, |
| WRITE_DONE, |
| }; |
| State next_state_; |
| std::function<void(grpc::Status, ResponseType*)> callback_; |
| std::function<gpr_timespec()> next_issue_; |
| std::function<std::unique_ptr<grpc::ClientAsyncWriter<RequestType>>( |
| BenchmarkService::Stub*, grpc::ClientContext*, ResponseType*, |
| CompletionQueue*)> |
| prepare_req_; |
| grpc::Status status_; |
| double start_; |
| std::unique_ptr<grpc::ClientAsyncWriter<RequestType>> stream_; |
| |
| void StartInternal(CompletionQueue* cq) { |
| cq_ = cq; |
| stream_ = prepare_req_(stub_, &context_, &response_, cq); |
| next_state_ = State::STREAM_IDLE; |
| stream_->StartCall(ClientRpcContext::tag(this)); |
| } |
| }; |
| |
| class AsyncStreamingFromClientClient final |
| : public AsyncClient<BenchmarkService::Stub, SimpleRequest> { |
| public: |
| explicit AsyncStreamingFromClientClient(const ClientConfig& config) |
| : AsyncClient<BenchmarkService::Stub, SimpleRequest>( |
| config, SetupCtx, BenchmarkStubCreator) { |
| StartThreads(num_async_threads_); |
| } |
| |
| ~AsyncStreamingFromClientClient() override {} |
| |
| private: |
| static void CheckDone(grpc::Status s, SimpleResponse* response) {} |
| static std::unique_ptr<grpc::ClientAsyncWriter<SimpleRequest>> PrepareReq( |
| BenchmarkService::Stub* stub, grpc::ClientContext* ctx, |
| SimpleResponse* resp, CompletionQueue* cq) { |
| auto stream = stub->PrepareAsyncStreamingFromClient(ctx, resp, cq); |
| return stream; |
| }; |
| static ClientRpcContext* SetupCtx(BenchmarkService::Stub* stub, |
| std::function<gpr_timespec()> next_issue, |
| const SimpleRequest& req) { |
| return new ClientRpcContextStreamingFromClientImpl<SimpleRequest, |
| SimpleResponse>( |
| stub, req, next_issue, AsyncStreamingFromClientClient::PrepareReq, |
| AsyncStreamingFromClientClient::CheckDone); |
| } |
| }; |
| |
| template <class RequestType, class ResponseType> |
| class ClientRpcContextStreamingFromServerImpl : public ClientRpcContext { |
| public: |
| ClientRpcContextStreamingFromServerImpl( |
| BenchmarkService::Stub* stub, const RequestType& req, |
| std::function<gpr_timespec()> next_issue, |
| std::function<std::unique_ptr<grpc::ClientAsyncReader<ResponseType>>( |
| BenchmarkService::Stub*, grpc::ClientContext*, const RequestType&, |
| CompletionQueue*)> |
| prepare_req, |
| std::function<void(grpc::Status, ResponseType*)> on_done) |
| : context_(), |
| stub_(stub), |
| cq_(nullptr), |
| req_(req), |
| response_(), |
| next_state_(State::INVALID), |
| callback_(on_done), |
| next_issue_(next_issue), |
| prepare_req_(prepare_req) {} |
| ~ClientRpcContextStreamingFromServerImpl() override {} |
| void Start(CompletionQueue* cq, const ClientConfig& config) override { |
| StartInternal(cq); |
| } |
| bool RunNextState(bool ok, HistogramEntry* entry) override { |
| while (true) { |
| switch (next_state_) { |
| case State::STREAM_IDLE: |
| if (!ok) { |
| return false; |
| } |
| start_ = UsageTimer::Now(); |
| next_state_ = State::READ_DONE; |
| stream_->Read(&response_, ClientRpcContext::tag(this)); |
| return true; |
| case State::READ_DONE: |
| if (!ok) { |
| return false; |
| } |
| entry->set_value((UsageTimer::Now() - start_) * 1e9); |
| callback_(status_, &response_); |
| next_state_ = State::STREAM_IDLE; |
| break; // loop around |
| default: |
| GPR_ASSERT(false); |
| return false; |
| } |
| } |
| } |
| void StartNewClone(CompletionQueue* cq) override { |
| auto* clone = new ClientRpcContextStreamingFromServerImpl( |
| stub_, req_, next_issue_, prepare_req_, callback_); |
| clone->StartInternal(cq); |
| } |
| void TryCancel() override { context_.TryCancel(); } |
| |
| private: |
| grpc::ClientContext context_; |
| BenchmarkService::Stub* stub_; |
| CompletionQueue* cq_; |
| std::unique_ptr<Alarm> alarm_; |
| const RequestType& req_; |
| ResponseType response_; |
| enum State { INVALID, STREAM_IDLE, READ_DONE }; |
| State next_state_; |
| std::function<void(grpc::Status, ResponseType*)> callback_; |
| std::function<gpr_timespec()> next_issue_; |
| std::function<std::unique_ptr<grpc::ClientAsyncReader<ResponseType>>( |
| BenchmarkService::Stub*, grpc::ClientContext*, const RequestType&, |
| CompletionQueue*)> |
| prepare_req_; |
| grpc::Status status_; |
| double start_; |
| std::unique_ptr<grpc::ClientAsyncReader<ResponseType>> stream_; |
| |
| void StartInternal(CompletionQueue* cq) { |
| // TODO(vjpai): Add support to rate-pace this |
| cq_ = cq; |
| stream_ = prepare_req_(stub_, &context_, req_, cq); |
| next_state_ = State::STREAM_IDLE; |
| stream_->StartCall(ClientRpcContext::tag(this)); |
| } |
| }; |
| |
| class AsyncStreamingFromServerClient final |
| : public AsyncClient<BenchmarkService::Stub, SimpleRequest> { |
| public: |
| explicit AsyncStreamingFromServerClient(const ClientConfig& config) |
| : AsyncClient<BenchmarkService::Stub, SimpleRequest>( |
| config, SetupCtx, BenchmarkStubCreator) { |
| StartThreads(num_async_threads_); |
| } |
| |
| ~AsyncStreamingFromServerClient() override {} |
| |
| private: |
| static void CheckDone(grpc::Status s, SimpleResponse* response) {} |
| static std::unique_ptr<grpc::ClientAsyncReader<SimpleResponse>> PrepareReq( |
| BenchmarkService::Stub* stub, grpc::ClientContext* ctx, |
| const SimpleRequest& req, CompletionQueue* cq) { |
| auto stream = stub->PrepareAsyncStreamingFromServer(ctx, req, cq); |
| return stream; |
| }; |
| static ClientRpcContext* SetupCtx(BenchmarkService::Stub* stub, |
| std::function<gpr_timespec()> next_issue, |
| const SimpleRequest& req) { |
| return new ClientRpcContextStreamingFromServerImpl<SimpleRequest, |
| SimpleResponse>( |
| stub, req, next_issue, AsyncStreamingFromServerClient::PrepareReq, |
| AsyncStreamingFromServerClient::CheckDone); |
| } |
| }; |
| |
| class ClientRpcContextGenericStreamingImpl : public ClientRpcContext { |
| public: |
| ClientRpcContextGenericStreamingImpl( |
| grpc::GenericStub* stub, const ByteBuffer& req, |
| std::function<gpr_timespec()> next_issue, |
| std::function<std::unique_ptr<grpc::GenericClientAsyncReaderWriter>( |
| grpc::GenericStub*, grpc::ClientContext*, |
| const grpc::string& method_name, CompletionQueue*)> |
| prepare_req, |
| std::function<void(grpc::Status, ByteBuffer*)> on_done) |
| : context_(), |
| stub_(stub), |
| cq_(nullptr), |
| req_(req), |
| response_(), |
| next_state_(State::INVALID), |
| callback_(on_done), |
| next_issue_(next_issue), |
| prepare_req_(prepare_req) {} |
| ~ClientRpcContextGenericStreamingImpl() override {} |
| void Start(CompletionQueue* cq, const ClientConfig& config) override { |
| StartInternal(cq, config.messages_per_stream()); |
| } |
| bool RunNextState(bool ok, HistogramEntry* entry) override { |
| while (true) { |
| switch (next_state_) { |
| case State::STREAM_IDLE: |
| if (!next_issue_) { // ready to issue |
| next_state_ = State::READY_TO_WRITE; |
| } else { |
| next_state_ = State::WAIT; |
| } |
| break; // loop around, don't return |
| case State::WAIT: |
| next_state_ = State::READY_TO_WRITE; |
| alarm_.reset(new Alarm); |
| alarm_->Set(cq_, next_issue_(), ClientRpcContext::tag(this)); |
| return true; |
| case State::READY_TO_WRITE: |
| if (!ok) { |
| return false; |
| } |
| start_ = UsageTimer::Now(); |
| next_state_ = State::WRITE_DONE; |
| stream_->Write(req_, ClientRpcContext::tag(this)); |
| return true; |
| case State::WRITE_DONE: |
| if (!ok) { |
| return false; |
| } |
| next_state_ = State::READ_DONE; |
| stream_->Read(&response_, ClientRpcContext::tag(this)); |
| return true; |
| break; |
| case State::READ_DONE: |
| entry->set_value((UsageTimer::Now() - start_) * 1e9); |
| callback_(status_, &response_); |
| if ((messages_per_stream_ != 0) && |
| (++messages_issued_ >= messages_per_stream_)) { |
| next_state_ = State::WRITES_DONE_DONE; |
| stream_->WritesDone(ClientRpcContext::tag(this)); |
| return true; |
| } |
| next_state_ = State::STREAM_IDLE; |
| break; // loop around |
| case State::WRITES_DONE_DONE: |
| next_state_ = State::FINISH_DONE; |
| stream_->Finish(&status_, ClientRpcContext::tag(this)); |
| return true; |
| case State::FINISH_DONE: |
| next_state_ = State::INVALID; |
| return false; |
| break; |
| default: |
| GPR_ASSERT(false); |
| return false; |
| } |
| } |
| } |
| void StartNewClone(CompletionQueue* cq) override { |
| auto* clone = new ClientRpcContextGenericStreamingImpl( |
| stub_, req_, next_issue_, prepare_req_, callback_); |
| clone->StartInternal(cq, messages_per_stream_); |
| } |
| void TryCancel() override { context_.TryCancel(); } |
| |
| private: |
| grpc::ClientContext context_; |
| grpc::GenericStub* stub_; |
| CompletionQueue* cq_; |
| std::unique_ptr<Alarm> alarm_; |
| ByteBuffer req_; |
| ByteBuffer response_; |
| enum State { |
| INVALID, |
| STREAM_IDLE, |
| WAIT, |
| READY_TO_WRITE, |
| WRITE_DONE, |
| READ_DONE, |
| WRITES_DONE_DONE, |
| FINISH_DONE |
| }; |
| State next_state_; |
| std::function<void(grpc::Status, ByteBuffer*)> callback_; |
| std::function<gpr_timespec()> next_issue_; |
| std::function<std::unique_ptr<grpc::GenericClientAsyncReaderWriter>( |
| grpc::GenericStub*, grpc::ClientContext*, const grpc::string&, |
| CompletionQueue*)> |
| prepare_req_; |
| grpc::Status status_; |
| double start_; |
| std::unique_ptr<grpc::GenericClientAsyncReaderWriter> stream_; |
| |
| // Allow a limit on number of messages in a stream |
| int messages_per_stream_; |
| int messages_issued_; |
| |
| void StartInternal(CompletionQueue* cq, int messages_per_stream) { |
| cq_ = cq; |
| const grpc::string kMethodName( |
| "/grpc.testing.BenchmarkService/StreamingCall"); |
| messages_per_stream_ = messages_per_stream; |
| messages_issued_ = 0; |
| stream_ = prepare_req_(stub_, &context_, kMethodName, cq); |
| next_state_ = State::STREAM_IDLE; |
| stream_->StartCall(ClientRpcContext::tag(this)); |
| } |
| }; |
| |
| static std::unique_ptr<grpc::GenericStub> GenericStubCreator( |
| std::shared_ptr<Channel> ch) { |
| return std::unique_ptr<grpc::GenericStub>(new grpc::GenericStub(ch)); |
| } |
| |
| class GenericAsyncStreamingClient final |
| : public AsyncClient<grpc::GenericStub, ByteBuffer> { |
| public: |
| explicit GenericAsyncStreamingClient(const ClientConfig& config) |
| : AsyncClient<grpc::GenericStub, ByteBuffer>(config, SetupCtx, |
| GenericStubCreator) { |
| StartThreads(num_async_threads_); |
| } |
| |
| ~GenericAsyncStreamingClient() override {} |
| |
| private: |
| static void CheckDone(grpc::Status s, ByteBuffer* response) {} |
| static std::unique_ptr<grpc::GenericClientAsyncReaderWriter> PrepareReq( |
| grpc::GenericStub* stub, grpc::ClientContext* ctx, |
| const grpc::string& method_name, CompletionQueue* cq) { |
| auto stream = stub->PrepareCall(ctx, method_name, cq); |
| return stream; |
| }; |
| static ClientRpcContext* SetupCtx(grpc::GenericStub* stub, |
| std::function<gpr_timespec()> next_issue, |
| const ByteBuffer& req) { |
| return new ClientRpcContextGenericStreamingImpl( |
| stub, req, next_issue, GenericAsyncStreamingClient::PrepareReq, |
| GenericAsyncStreamingClient::CheckDone); |
| } |
| }; |
| |
| std::unique_ptr<Client> CreateAsyncClient(const ClientConfig& config) { |
| switch (config.rpc_type()) { |
| case UNARY: |
| return std::unique_ptr<Client>(new AsyncUnaryClient(config)); |
| case STREAMING: |
| return std::unique_ptr<Client>(new AsyncStreamingPingPongClient(config)); |
| case STREAMING_FROM_CLIENT: |
| return std::unique_ptr<Client>( |
| new AsyncStreamingFromClientClient(config)); |
| case STREAMING_FROM_SERVER: |
| return std::unique_ptr<Client>( |
| new AsyncStreamingFromServerClient(config)); |
| case STREAMING_BOTH_WAYS: |
| // TODO(vjpai): Implement this |
| assert(false); |
| return nullptr; |
| default: |
| assert(false); |
| return nullptr; |
| } |
| } |
| std::unique_ptr<Client> CreateGenericAsyncStreamingClient( |
| const ClientConfig& args) { |
| return std::unique_ptr<Client>(new GenericAsyncStreamingClient(args)); |
| } |
| |
| } // namespace testing |
| } // namespace grpc |