Initial checkin of gRPC to third_party/

third_party/grpc/test/cpp/qps/qps_worker.cc

Index: third_party/grpc/test/cpp/qps/qps_worker.cc
diff --git a/third_party/grpc/test/cpp/qps/qps_worker.cc b/third_party/grpc/test/cpp/qps/qps_worker.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b83e9d1dd7f0337620b7a44ee8bc0cf913726a6e
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+++ b/third_party/grpc/test/cpp/qps/qps_worker.cc
@@ -0,0 +1,302 @@
+/*
+ *
+ * Copyright 2015-2016, 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
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * 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
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "test/cpp/qps/qps_worker.h"
+
+#include <cassert>
+#include <memory>
+#include <mutex>
+#include <sstream>
+#include <string>
+#include <thread>
+#include <vector>
+
+#include <grpc++/client_context.h>
+#include <grpc++/security/server_credentials.h>
+#include <grpc++/server.h>
+#include <grpc++/server_builder.h>
+#include <grpc/grpc.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/cpu.h>
+#include <grpc/support/histogram.h>
+#include <grpc/support/host_port.h>
+#include <grpc/support/log.h>
+
+#include "src/proto/grpc/testing/services.pb.h"
+#include "test/core/util/grpc_profiler.h"
+#include "test/cpp/qps/client.h"
+#include "test/cpp/qps/server.h"
+#include "test/cpp/util/create_test_channel.h"
+
+namespace grpc {
+namespace testing {
+
+static std::unique_ptr<Client> CreateClient(const ClientConfig& config) {
+  gpr_log(GPR_INFO, "Starting client of type %s %s %d",
+          ClientType_Name(config.client_type()).c_str(),
+          RpcType_Name(config.rpc_type()).c_str(),
+          config.payload_config().has_bytebuf_params());
+
+  switch (config.client_type()) {
+    case ClientType::SYNC_CLIENT:
+      return (config.rpc_type() == RpcType::UNARY)
+                 ? CreateSynchronousUnaryClient(config)
+                 : CreateSynchronousStreamingClient(config);
+    case ClientType::ASYNC_CLIENT:
+      return (config.rpc_type() == RpcType::UNARY)
+                 ? CreateAsyncUnaryClient(config)
+                 : (config.payload_config().has_bytebuf_params()
+                        ? CreateGenericAsyncStreamingClient(config)
+                        : CreateAsyncStreamingClient(config));
+    default:
+      abort();
+  }
+  abort();
+}
+
+static std::unique_ptr<Server> CreateServer(const ServerConfig& config) {
+  gpr_log(GPR_INFO, "Starting server of type %s",
+          ServerType_Name(config.server_type()).c_str());
+
+  switch (config.server_type()) {
+    case ServerType::SYNC_SERVER:
+      return CreateSynchronousServer(config);
+    case ServerType::ASYNC_SERVER:
+      return CreateAsyncServer(config);
+    case ServerType::ASYNC_GENERIC_SERVER:
+      return CreateAsyncGenericServer(config);
+    default:
+      abort();
+  }
+  abort();
+}
+
+class ScopedProfile GRPC_FINAL {
+ public:
+  ScopedProfile(const char* filename, bool enable) : enable_(enable) {
+    if (enable_) grpc_profiler_start(filename);
+  }
+  ~ScopedProfile() {
+    if (enable_) grpc_profiler_stop();
+  }
+
+ private:
+  const bool enable_;
+};
+
+class WorkerServiceImpl GRPC_FINAL : public WorkerService::Service {
+ public:
+  WorkerServiceImpl(int server_port, QpsWorker* worker)
+      : acquired_(false), server_port_(server_port), worker_(worker) {}
+
+  Status RunClient(ServerContext* ctx,
+                   ServerReaderWriter<ClientStatus, ClientArgs>* stream)
+      GRPC_OVERRIDE {
+    InstanceGuard g(this);
+    if (!g.Acquired()) {
+      return Status(StatusCode::RESOURCE_EXHAUSTED, "");
+    }
+
+    ScopedProfile profile("qps_client.prof", false);
+    Status ret = RunClientBody(ctx, stream);
+    return ret;
+  }
+
+  Status RunServer(ServerContext* ctx,
+                   ServerReaderWriter<ServerStatus, ServerArgs>* stream)
+      GRPC_OVERRIDE {
+    InstanceGuard g(this);
+    if (!g.Acquired()) {
+      return Status(StatusCode::RESOURCE_EXHAUSTED, "");
+    }
+
+    ScopedProfile profile("qps_server.prof", false);
+    Status ret = RunServerBody(ctx, stream);
+    return ret;
+  }
+
+  Status CoreCount(ServerContext* ctx, const CoreRequest*,
+                   CoreResponse* resp) GRPC_OVERRIDE {
+    resp->set_cores(gpr_cpu_num_cores());
+    return Status::OK;
+  }
+
+  Status QuitWorker(ServerContext* ctx, const Void*, Void*) GRPC_OVERRIDE {
+    InstanceGuard g(this);
+    if (!g.Acquired()) {
+      return Status(StatusCode::RESOURCE_EXHAUSTED, "");
+    }
+
+    worker_->MarkDone();
+    return Status::OK;
+  }
+
+ private:
+  // Protect against multiple clients using this worker at once.
+  class InstanceGuard {
+   public:
+    InstanceGuard(WorkerServiceImpl* impl)
+        : impl_(impl), acquired_(impl->TryAcquireInstance()) {}
+    ~InstanceGuard() {
+      if (acquired_) {
+        impl_->ReleaseInstance();
+      }
+    }
+
+    bool Acquired() const { return acquired_; }
+
+   private:
+    WorkerServiceImpl* const impl_;
+    const bool acquired_;
+  };
+
+  bool TryAcquireInstance() {
+    std::lock_guard<std::mutex> g(mu_);
+    if (acquired_) return false;
+    acquired_ = true;
+    return true;
+  }
+
+  void ReleaseInstance() {
+    std::lock_guard<std::mutex> g(mu_);
+    GPR_ASSERT(acquired_);
+    acquired_ = false;
+  }
+
+  Status RunClientBody(ServerContext* ctx,
+                       ServerReaderWriter<ClientStatus, ClientArgs>* stream) {
+    ClientArgs args;
+    if (!stream->Read(&args)) {
+      return Status(StatusCode::INVALID_ARGUMENT, "");
+    }
+    if (!args.has_setup()) {
+      return Status(StatusCode::INVALID_ARGUMENT, "");
+    }
+    gpr_log(GPR_INFO, "RunClientBody: about to create client");
+    auto client = CreateClient(args.setup());
+    if (!client) {
+      return Status(StatusCode::INVALID_ARGUMENT, "");
+    }
+    gpr_log(GPR_INFO, "RunClientBody: client created");
+    ClientStatus status;
+    if (!stream->Write(status)) {
+      return Status(StatusCode::UNKNOWN, "");
+    }
+    gpr_log(GPR_INFO, "RunClientBody: creation status reported");
+    while (stream->Read(&args)) {
+      gpr_log(GPR_INFO, "RunClientBody: Message read");
+      if (!args.has_mark()) {
+        gpr_log(GPR_INFO, "RunClientBody: Message is not a mark!");
+        return Status(StatusCode::INVALID_ARGUMENT, "");
+      }
+      *status.mutable_stats() = client->Mark(args.mark().reset());
+      stream->Write(status);
+      gpr_log(GPR_INFO, "RunClientBody: Mark response given");
+    }
+
+    gpr_log(GPR_INFO, "RunClientBody: Returning");
+    return Status::OK;
+  }
+
+  Status RunServerBody(ServerContext* ctx,
+                       ServerReaderWriter<ServerStatus, ServerArgs>* stream) {
+    ServerArgs args;
+    if (!stream->Read(&args)) {
+      return Status(StatusCode::INVALID_ARGUMENT, "");
+    }
+    if (!args.has_setup()) {
+      return Status(StatusCode::INVALID_ARGUMENT, "");
+    }
+    if (server_port_ != 0) {
+      args.mutable_setup()->set_port(server_port_);
+    }
+    gpr_log(GPR_INFO, "RunServerBody: about to create server");
+    auto server = CreateServer(args.setup());
+    if (!server) {
+      return Status(StatusCode::INVALID_ARGUMENT, "");
+    }
+    gpr_log(GPR_INFO, "RunServerBody: server created");
+    ServerStatus status;
+    status.set_port(server->port());
+    status.set_cores(server->cores());
+    if (!stream->Write(status)) {
+      return Status(StatusCode::UNKNOWN, "");
+    }
+    gpr_log(GPR_INFO, "RunServerBody: creation status reported");
+    while (stream->Read(&args)) {
+      gpr_log(GPR_INFO, "RunServerBody: Message read");
+      if (!args.has_mark()) {
+        gpr_log(GPR_INFO, "RunServerBody: Message not a mark!");
+        return Status(StatusCode::INVALID_ARGUMENT, "");
+      }
+      *status.mutable_stats() = server->Mark(args.mark().reset());
+      stream->Write(status);
+      gpr_log(GPR_INFO, "RunServerBody: Mark response given");
+    }
+
+    gpr_log(GPR_INFO, "RunServerBody: Returning");
+    return Status::OK;
+  }
+
+  std::mutex mu_;
+  bool acquired_;
+  int server_port_;
+  QpsWorker* worker_;
+};
+
+QpsWorker::QpsWorker(int driver_port, int server_port) {
+  impl_.reset(new WorkerServiceImpl(server_port, this));
+  gpr_atm_rel_store(&done_, static_cast<gpr_atm>(0));
+
+  char* server_address = NULL;
+  gpr_join_host_port(&server_address, "::", driver_port);
+
+  ServerBuilder builder;
+  builder.AddListeningPort(server_address, InsecureServerCredentials());
+  builder.RegisterService(impl_.get());
+
+  gpr_free(server_address);
+
+  server_ = builder.BuildAndStart();
+}
+
+QpsWorker::~QpsWorker() {}
+
+bool QpsWorker::Done() const {
+  return (gpr_atm_acq_load(&done_) != static_cast<gpr_atm>(0));
+}
+void QpsWorker::MarkDone() {
+  gpr_atm_rel_store(&done_, static_cast<gpr_atm>(1));
+}
+}  // namespace testing
+}  // namespace grpc