grpc/test/cpp/qps/client_sync.cc

/*
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#include <cassert>
#include <memory>
#include <mutex>
#include <string>
#include <thread>
#include <vector>
#include <sstream>

#include <sys/signal.h>

#include <grpc/grpc.h>
#include <grpc/support/alloc.h>
#include <grpc/support/histogram.h>
#include <grpc/support/log.h>
#include <grpc/support/host_port.h>
#include <gflags/gflags.h>
#include <grpc++/client_context.h>
#include <grpc++/status.h>
#include <grpc++/server.h>
#include <grpc++/server_builder.h>
#include "test/core/util/grpc_profiler.h"
#include "test/cpp/util/create_test_channel.h"
#include "test/cpp/qps/client.h"
#include "test/cpp/qps/qpstest.pb.h"
#include "test/cpp/qps/histogram.h"
#include "test/cpp/qps/timer.h"

namespace grpc {
namespace testing {

class SynchronousClient GRPC_FINAL : public Client {
 public:
  SynchronousClient(const ClientConfig& config) : Client(config) {
    size_t num_threads = config.outstanding_rpcs_per_channel() * config.client_channels();
    responses_.resize(num_threads);
    StartThreads(num_threads);
  }

  ~SynchronousClient() {
    EndThreads();
  }

  void ThreadFunc(Histogram* histogram, size_t thread_idx) {
    auto* stub = channels_[thread_idx % channels_.size()].get_stub();
    double start = Timer::Now();
    grpc::ClientContext context;
    grpc::Status s = stub->UnaryCall(&context, request_, &responses_[thread_idx]);
    histogram->Add((Timer::Now() - start) * 1e9);
  }

 private:
  std::vector<SimpleResponse> responses_;
};

std::unique_ptr<Client> CreateSynchronousClient(const ClientConfig& config) {
  return std::unique_ptr<Client>(new SynchronousClient(config));
}

}  // namespace testing
}  // namespace grpc