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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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341 lines
11 KiB
341 lines
11 KiB
/* |
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#include <cassert> |
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#include <functional> |
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#include <memory> |
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#include <string> |
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#include <thread> |
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#include <vector> |
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#include <sstream> |
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#include <grpc/grpc.h> |
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#include <grpc/support/histogram.h> |
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#include <grpc/support/log.h> |
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#include <gflags/gflags.h> |
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#include <grpc++/async_unary_call.h> |
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#include <grpc++/client_context.h> |
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#include <grpc++/status.h> |
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#include <grpc++/stream.h> |
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#include "test/cpp/util/create_test_channel.h" |
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#include "test/cpp/qps/qpstest.pb.h" |
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#include "test/cpp/qps/timer.h" |
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#include "test/cpp/qps/client.h" |
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namespace grpc { |
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namespace testing { |
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class ClientRpcContext { |
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public: |
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ClientRpcContext() {} |
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virtual ~ClientRpcContext() {} |
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// next state, return false if done. Collect stats when appropriate |
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virtual bool RunNextState(bool, Histogram* hist) = 0; |
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virtual void StartNewClone() = 0; |
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static void* tag(ClientRpcContext* c) { return reinterpret_cast<void*>(c); } |
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static ClientRpcContext* detag(void* t) { |
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return reinterpret_cast<ClientRpcContext*>(t); |
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} |
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}; |
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template <class RequestType, class ResponseType> |
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class ClientRpcContextUnaryImpl : public ClientRpcContext { |
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public: |
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ClientRpcContextUnaryImpl( |
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TestService::Stub* stub, const RequestType& req, |
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std::function< |
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std::unique_ptr<grpc::ClientAsyncResponseReader<ResponseType>>( |
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TestService::Stub*, grpc::ClientContext*, const RequestType&, |
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void*)> start_req, |
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std::function<void(grpc::Status, ResponseType*)> on_done) |
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: context_(), |
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stub_(stub), |
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req_(req), |
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response_(), |
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next_state_(&ClientRpcContextUnaryImpl::ReqSent), |
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callback_(on_done), |
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start_req_(start_req), |
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start_(Timer::Now()), |
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response_reader_( |
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start_req(stub_, &context_, req_, ClientRpcContext::tag(this))) {} |
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~ClientRpcContextUnaryImpl() GRPC_OVERRIDE {} |
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bool RunNextState(bool ok, Histogram* hist) GRPC_OVERRIDE { |
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bool ret = (this->*next_state_)(ok); |
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if (!ret) { |
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hist->Add((Timer::Now() - start_) * 1e9); |
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} |
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return ret; |
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} |
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void StartNewClone() GRPC_OVERRIDE { |
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new ClientRpcContextUnaryImpl(stub_, req_, start_req_, callback_); |
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} |
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private: |
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bool ReqSent(bool) { |
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next_state_ = &ClientRpcContextUnaryImpl::RespDone; |
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response_reader_->Finish(&response_, &status_, ClientRpcContext::tag(this)); |
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return true; |
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} |
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bool RespDone(bool) { |
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next_state_ = &ClientRpcContextUnaryImpl::DoCallBack; |
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return false; |
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} |
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bool DoCallBack(bool) { |
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callback_(status_, &response_); |
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return false; |
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} |
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grpc::ClientContext context_; |
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TestService::Stub* stub_; |
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RequestType req_; |
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ResponseType response_; |
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bool (ClientRpcContextUnaryImpl::*next_state_)(bool); |
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std::function<void(grpc::Status, ResponseType*)> callback_; |
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std::function<std::unique_ptr<grpc::ClientAsyncResponseReader<ResponseType>>( |
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TestService::Stub*, grpc::ClientContext*, const RequestType&, void*)> |
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start_req_; |
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grpc::Status status_; |
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double start_; |
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std::unique_ptr<grpc::ClientAsyncResponseReader<ResponseType>> |
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response_reader_; |
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}; |
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class AsyncUnaryClient GRPC_FINAL : public Client { |
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public: |
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explicit AsyncUnaryClient(const ClientConfig& config) : Client(config) { |
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for (int i = 0; i < config.async_client_threads(); i++) { |
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cli_cqs_.emplace_back(new CompletionQueue); |
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} |
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auto payload_size = config.payload_size(); |
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auto check_done = [payload_size](grpc::Status s, SimpleResponse* response) { |
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GPR_ASSERT(s.IsOk() && (response->payload().type() == |
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grpc::testing::PayloadType::COMPRESSABLE) && |
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(response->payload().body().length() == |
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static_cast<size_t>(payload_size))); |
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}; |
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int t = 0; |
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for (int i = 0; i < config.outstanding_rpcs_per_channel(); i++) { |
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for (auto channel = channels_.begin(); channel != channels_.end(); |
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channel++) { |
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auto* cq = cli_cqs_[t].get(); |
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t = (t + 1) % cli_cqs_.size(); |
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auto start_req = [cq](TestService::Stub* stub, grpc::ClientContext* ctx, |
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const SimpleRequest& request, void* tag) { |
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return stub->AsyncUnaryCall(ctx, request, cq, tag); |
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}; |
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TestService::Stub* stub = channel->get_stub(); |
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const SimpleRequest& request = request_; |
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new ClientRpcContextUnaryImpl<SimpleRequest, SimpleResponse>( |
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stub, request, start_req, check_done); |
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} |
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} |
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StartThreads(config.async_client_threads()); |
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} |
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~AsyncUnaryClient() GRPC_OVERRIDE { |
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EndThreads(); |
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for (auto cq = cli_cqs_.begin(); cq != cli_cqs_.end(); cq++) { |
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(*cq)->Shutdown(); |
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void* got_tag; |
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bool ok; |
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while ((*cq)->Next(&got_tag, &ok)) { |
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delete ClientRpcContext::detag(got_tag); |
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} |
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} |
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} |
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void ThreadFunc(Histogram* histogram, size_t thread_idx) GRPC_OVERRIDE { |
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void* got_tag; |
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bool ok; |
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cli_cqs_[thread_idx]->Next(&got_tag, &ok); |
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ClientRpcContext* ctx = ClientRpcContext::detag(got_tag); |
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if (ctx->RunNextState(ok, histogram) == false) { |
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// call the callback and then delete it |
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ctx->RunNextState(ok, histogram); |
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ctx->StartNewClone(); |
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delete ctx; |
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} |
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} |
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std::vector<std::unique_ptr<CompletionQueue>> cli_cqs_; |
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}; |
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template <class RequestType, class ResponseType> |
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class ClientRpcContextStreamingImpl : public ClientRpcContext { |
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public: |
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ClientRpcContextStreamingImpl( |
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TestService::Stub *stub, const RequestType &req, |
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std::function< |
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std::unique_ptr<grpc::ClientAsyncReaderWriter< |
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RequestType,ResponseType>>( |
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TestService::Stub *, grpc::ClientContext *, void *)> start_req, |
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std::function<void(grpc::Status, ResponseType *)> on_done) |
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: context_(), |
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stub_(stub), |
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req_(req), |
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response_(), |
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next_state_(&ClientRpcContextStreamingImpl::ReqSent), |
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callback_(on_done), |
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start_req_(start_req), |
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start_(Timer::Now()), |
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stream_(start_req_(stub_, &context_, ClientRpcContext::tag(this))) {} |
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~ClientRpcContextStreamingImpl() GRPC_OVERRIDE {} |
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bool RunNextState(bool ok, Histogram *hist) GRPC_OVERRIDE { |
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return (this->*next_state_)(ok, hist); |
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} |
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void StartNewClone() GRPC_OVERRIDE { |
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new ClientRpcContextStreamingImpl(stub_, req_, start_req_, callback_); |
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} |
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private: |
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bool ReqSent(bool ok, Histogram *) { |
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return StartWrite(ok); |
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} |
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bool StartWrite(bool ok) { |
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if (!ok) { |
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return(false); |
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} |
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start_ = Timer::Now(); |
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next_state_ = &ClientRpcContextStreamingImpl::WriteDone; |
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stream_->Write(req_, ClientRpcContext::tag(this)); |
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return true; |
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} |
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bool WriteDone(bool ok, Histogram *) { |
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if (!ok) { |
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return(false); |
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} |
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next_state_ = &ClientRpcContextStreamingImpl::ReadDone; |
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stream_->Read(&response_, ClientRpcContext::tag(this)); |
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return true; |
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} |
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bool ReadDone(bool ok, Histogram *hist) { |
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hist->Add((Timer::Now() - start_) * 1e9); |
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return StartWrite(ok); |
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} |
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grpc::ClientContext context_; |
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TestService::Stub *stub_; |
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RequestType req_; |
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ResponseType response_; |
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bool (ClientRpcContextStreamingImpl::*next_state_)(bool, Histogram *); |
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std::function<void(grpc::Status, ResponseType *)> callback_; |
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std::function<std::unique_ptr<grpc::ClientAsyncReaderWriter< |
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RequestType,ResponseType>>( |
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TestService::Stub *, grpc::ClientContext *, void *)> start_req_; |
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grpc::Status status_; |
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double start_; |
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std::unique_ptr<grpc::ClientAsyncReaderWriter<RequestType,ResponseType>> |
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stream_; |
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}; |
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class AsyncStreamingClient GRPC_FINAL : public Client { |
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public: |
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explicit AsyncStreamingClient(const ClientConfig &config) : Client(config) { |
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for (int i = 0; i < config.async_client_threads(); i++) { |
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cli_cqs_.emplace_back(new CompletionQueue); |
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} |
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auto payload_size = config.payload_size(); |
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auto check_done = [payload_size](grpc::Status s, SimpleResponse *response) { |
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GPR_ASSERT(s.IsOk() && (response->payload().type() == |
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grpc::testing::PayloadType::COMPRESSABLE) && |
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(response->payload().body().length() == |
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static_cast<size_t>(payload_size))); |
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}; |
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int t = 0; |
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for (int i = 0; i < config.outstanding_rpcs_per_channel(); i++) { |
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for (auto channel = channels_.begin(); channel != channels_.end(); |
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channel++) { |
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auto* cq = cli_cqs_[t].get(); |
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t = (t + 1) % cli_cqs_.size(); |
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auto start_req = [cq](TestService::Stub *stub, grpc::ClientContext *ctx, |
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void *tag) { |
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auto stream = stub->AsyncStreamingCall(ctx, cq, tag); |
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return stream; |
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}; |
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TestService::Stub *stub = channel->get_stub(); |
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const SimpleRequest &request = request_; |
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new ClientRpcContextStreamingImpl<SimpleRequest, SimpleResponse>( |
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stub, request, start_req, check_done); |
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} |
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} |
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StartThreads(config.async_client_threads()); |
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} |
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~AsyncStreamingClient() GRPC_OVERRIDE { |
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EndThreads(); |
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for (auto cq = cli_cqs_.begin(); cq != cli_cqs_.end(); cq++) { |
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(*cq)->Shutdown(); |
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void *got_tag; |
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bool ok; |
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while ((*cq)->Next(&got_tag, &ok)) { |
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delete ClientRpcContext::detag(got_tag); |
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} |
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} |
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} |
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void ThreadFunc(Histogram *histogram, size_t thread_idx) GRPC_OVERRIDE { |
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void *got_tag; |
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bool ok; |
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cli_cqs_[thread_idx]->Next(&got_tag, &ok); |
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ClientRpcContext *ctx = ClientRpcContext::detag(got_tag); |
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if (ctx->RunNextState(ok, histogram) == false) { |
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// call the callback and then delete it |
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ctx->RunNextState(ok, histogram); |
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ctx->StartNewClone(); |
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delete ctx; |
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} |
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} |
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std::vector<std::unique_ptr<CompletionQueue>> cli_cqs_; |
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}; |
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std::unique_ptr<Client> CreateAsyncUnaryClient(const ClientConfig& args) { |
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return std::unique_ptr<Client>(new AsyncUnaryClient(args)); |
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} |
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std::unique_ptr<Client> CreateAsyncStreamingClient(const ClientConfig& args) { |
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return std::unique_ptr<Client>(new AsyncStreamingClient(args)); |
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} |
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} // namespace testing |
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} // namespace grpc
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