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/*
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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 <atomic>
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#include <thread>
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#include <grpc++/resource_quota.h>
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#include <grpc++/security/server_credentials.h>
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#include <grpc++/server.h>
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#include <grpc++/server_builder.h>
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#include <grpc++/server_context.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/host_port.h>
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#include <grpc/support/log.h>
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#include "src/proto/grpc/testing/services.grpc.pb.h"
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#include "test/cpp/qps/server.h"
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#include "test/cpp/qps/usage_timer.h"
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namespace grpc {
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namespace testing {
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class BenchmarkServiceImpl final : public BenchmarkService::Service {
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public:
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Status UnaryCall(ServerContext* context, const SimpleRequest* request,
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SimpleResponse* response) override {
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auto s = SetResponse(request, response);
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if (!s.ok()) {
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return s;
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}
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return Status::OK;
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}
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Status StreamingCall(
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ServerContext* context,
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ServerReaderWriter<SimpleResponse, SimpleRequest>* stream) override {
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SimpleRequest request;
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while (stream->Read(&request)) {
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SimpleResponse response;
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auto s = SetResponse(&request, &response);
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if (!s.ok()) {
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return s;
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}
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if (!stream->Write(response)) {
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return Status(StatusCode::INTERNAL, "Server couldn't respond");
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}
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}
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return Status::OK;
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}
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Status StreamingFromClient(ServerContext* context,
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ServerReader<SimpleRequest>* stream,
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SimpleResponse* response) override {
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auto s = ClientPull(context, stream, response);
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if (!s.ok()) {
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return s;
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}
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return Status::OK;
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}
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Status StreamingFromServer(ServerContext* context,
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const SimpleRequest* request,
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ServerWriter<SimpleResponse>* stream) override {
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SimpleResponse response;
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auto s = SetResponse(request, &response);
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if (!s.ok()) {
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return s;
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}
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return ServerPush(context, stream, response, nullptr);
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}
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Status StreamingBothWays(
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ServerContext* context,
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ServerReaderWriter<SimpleResponse, SimpleRequest>* stream) override {
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// Read the first client message to setup server response
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SimpleRequest request;
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if (!stream->Read(&request)) {
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return Status::OK;
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}
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SimpleResponse response;
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auto s = SetResponse(&request, &response);
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if (!s.ok()) {
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return s;
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}
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std::atomic_bool done;
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Status sp;
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std::thread t([context, stream, &response, &done, &sp]() {
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sp = ServerPush(context, stream, response, [&done]() {
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return done.load(std::memory_order_relaxed);
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});
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});
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SimpleResponse dummy;
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auto cp = ClientPull(context, stream, &dummy);
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done.store(true, std::memory_order_relaxed); // can be lazy
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t.join();
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if (!cp.ok()) {
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return cp;
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}
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if (!sp.ok()) {
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return sp;
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}
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return Status::OK;
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}
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private:
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static Status ClientPull(ServerContext* context,
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ReaderInterface<SimpleRequest>* stream,
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SimpleResponse* response) {
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SimpleRequest request;
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while (stream->Read(&request)) {
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}
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if (request.response_size() > 0) {
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if (!Server::SetPayload(request.response_type(), request.response_size(),
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response->mutable_payload())) {
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return Status(grpc::StatusCode::INTERNAL, "Error creating payload.");
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}
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}
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return Status::OK;
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}
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static Status ServerPush(ServerContext* context,
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WriterInterface<SimpleResponse>* stream,
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const SimpleResponse& response,
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std::function<bool()> done) {
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while ((done == nullptr) || !done()) {
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// TODO(vjpai): Add potential for rate-pacing on this
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if (!stream->Write(response)) {
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return Status(StatusCode::INTERNAL, "Server couldn't push");
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}
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}
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return Status::OK;
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}
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static Status SetResponse(const SimpleRequest* request,
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SimpleResponse* response) {
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if (request->response_size() > 0) {
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if (!Server::SetPayload(request->response_type(),
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request->response_size(),
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response->mutable_payload())) {
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return Status(grpc::StatusCode::INTERNAL, "Error creating payload.");
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}
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}
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return Status::OK;
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}
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};
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class SynchronousServer final : public grpc::testing::Server {
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public:
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explicit SynchronousServer(const ServerConfig& config) : Server(config) {
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ServerBuilder builder;
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char* server_address = NULL;
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gpr_join_host_port(&server_address, "::", port());
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builder.AddListeningPort(server_address,
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Server::CreateServerCredentials(config));
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gpr_free(server_address);
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if (config.resource_quota_size() > 0) {
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builder.SetResourceQuota(ResourceQuota("AsyncQpsServerTest")
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.Resize(config.resource_quota_size()));
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}
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builder.RegisterService(&service_);
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impl_ = builder.BuildAndStart();
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}
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private:
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BenchmarkServiceImpl service_;
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std::unique_ptr<grpc::Server> impl_;
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};
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std::unique_ptr<grpc::testing::Server> CreateSynchronousServer(
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const ServerConfig& config) {
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return std::unique_ptr<Server>(new SynchronousServer(config));
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}
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} // namespace testing
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} // namespace grpc
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