Initial checkin of gRPC to third_party/

third_party/grpc/test/cpp/end2end/streaming_throughput_test.cc

Index: third_party/grpc/test/cpp/end2end/streaming_throughput_test.cc
diff --git a/third_party/grpc/test/cpp/end2end/streaming_throughput_test.cc b/third_party/grpc/test/cpp/end2end/streaming_throughput_test.cc
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index 0000000000000000000000000000000000000000..4777b88747349cfd40df09d2665187094dc8a1dd
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+/*
+ *
+ * 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 <time.h>
+#include <mutex>
+#include <thread>
+
+#include <grpc++/channel.h>
+#include <grpc++/client_context.h>
+#include <grpc++/create_channel.h>
+#include <grpc++/security/credentials.h>
+#include <grpc++/security/server_credentials.h>
+#include <grpc++/server.h>
+#include <grpc++/server_builder.h>
+#include <grpc++/server_context.h>
+#include <grpc/grpc.h>
+#include <grpc/support/atm.h>
+#include <grpc/support/thd.h>
+#include <grpc/support/time.h>
+#include <gtest/gtest.h>
+
+#include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h"
+#include "src/proto/grpc/testing/echo.grpc.pb.h"
+#include "test/core/util/port.h"
+#include "test/core/util/test_config.h"
+
+using grpc::testing::EchoRequest;
+using grpc::testing::EchoResponse;
+using std::chrono::system_clock;
+
+const char* kLargeString =
+    "("
+    "To be, or not to be- that is the question:"
+    "Whether 'tis nobler in the mind to suffer"
+    "The slings and arrows of outrageous fortune"
+    "Or to take arms against a sea of troubles,"
+    "And by opposing end them. To die- to sleep-"
+    "No more; and by a sleep to say we end"
+    "The heartache, and the thousand natural shock"
+    "That flesh is heir to. 'Tis a consummation"
+    "Devoutly to be wish'd. To die- to sleep."
+    "To sleep- perchance to dream: ay, there's the rub!"
+    "For in that sleep of death what dreams may come"
+    "When we have shuffled off this mortal coil,"
+    "Must give us pause. There's the respect"
+    "That makes calamity of so long life."
+    "For who would bear the whips and scorns of time,"
+    "Th' oppressor's wrong, the proud man's contumely,"
+    "The pangs of despis'd love, the law's delay,"
+    "The insolence of office, and the spurns"
+    "That patient merit of th' unworthy takes,"
+    "When he himself might his quietus make"
+    "With a bare bodkin? Who would these fardels bear,"
+    "To grunt and sweat under a weary life,"
+    "But that the dread of something after death-"
+    "The undiscover'd country, from whose bourn"
+    "No traveller returns- puzzles the will,"
+    "And makes us rather bear those ills we have"
+    "Than fly to others that we know not of?"
+    "Thus conscience does make cowards of us all,"
+    "And thus the native hue of resolution"
+    "Is sicklied o'er with the pale cast of thought,"
+    "And enterprises of great pith and moment"
+    "With this regard their currents turn awry"
+    "And lose the name of action.- Soft you now!"
+    "The fair Ophelia!- Nymph, in thy orisons"
+    "Be all my sins rememb'red.";
+
+namespace grpc {
+namespace testing {
+
+class TestServiceImpl : public ::grpc::testing::EchoTestService::Service {
+ public:
+  static void BidiStream_Sender(
+      ServerReaderWriter<EchoResponse, EchoRequest>* stream,
+      gpr_atm* should_exit) {
+    EchoResponse response;
+    response.set_message(kLargeString);
+    while (gpr_atm_acq_load(should_exit) == static_cast<gpr_atm>(0)) {
+      struct timespec tv = {0, 1000000};  // 1 ms
+      struct timespec rem;
+      // TODO (vpai): Mark this blocking
+      while (nanosleep(&tv, &rem) != 0) {
+        tv = rem;
+      };
+
+      stream->Write(response);
+    }
+  }
+
+  // Only implement the one method we will be calling for brevity.
+  Status BidiStream(ServerContext* context,
+                    ServerReaderWriter<EchoResponse, EchoRequest>* stream)
+      GRPC_OVERRIDE {
+    EchoRequest request;
+    gpr_atm should_exit;
+    gpr_atm_rel_store(&should_exit, static_cast<gpr_atm>(0));
+
+    std::thread sender(
+        std::bind(&TestServiceImpl::BidiStream_Sender, stream, &should_exit));
+
+    while (stream->Read(&request)) {
+      struct timespec tv = {0, 3000000};  // 3 ms
+      struct timespec rem;
+      // TODO (vpai): Mark this blocking
+      while (nanosleep(&tv, &rem) != 0) {
+        tv = rem;
+      };
+    }
+    gpr_atm_rel_store(&should_exit, static_cast<gpr_atm>(1));
+    sender.join();
+    return Status::OK;
+  }
+};
+
+class End2endTest : public ::testing::Test {
+ protected:
+  void SetUp() GRPC_OVERRIDE {
+    int port = grpc_pick_unused_port_or_die();
+    server_address_ << "localhost:" << port;
+    // Setup server
+    ServerBuilder builder;
+    builder.AddListeningPort(server_address_.str(),
+                             InsecureServerCredentials());
+    builder.RegisterService(&service_);
+    server_ = builder.BuildAndStart();
+  }
+
+  void TearDown() GRPC_OVERRIDE { server_->Shutdown(); }
+
+  void ResetStub() {
+    std::shared_ptr<Channel> channel =
+        CreateChannel(server_address_.str(), InsecureChannelCredentials());
+    stub_ = grpc::testing::EchoTestService::NewStub(channel);
+  }
+
+  std::unique_ptr<grpc::testing::EchoTestService::Stub> stub_;
+  std::unique_ptr<Server> server_;
+  std::ostringstream server_address_;
+  TestServiceImpl service_;
+};
+
+static void Drainer(ClientReaderWriter<EchoRequest, EchoResponse>* reader) {
+  EchoResponse response;
+  while (reader->Read(&response)) {
+    // Just drain out the responses as fast as possible.
+  }
+}
+
+TEST_F(End2endTest, StreamingThroughput) {
+  ResetStub();
+  grpc::ClientContext context;
+  auto stream = stub_->BidiStream(&context);
+
+  auto reader = stream.get();
+  std::thread receiver(std::bind(Drainer, reader));
+
+  for (int i = 0; i < 10000; i++) {
+    EchoRequest request;
+    request.set_message(kLargeString);
+    ASSERT_TRUE(stream->Write(request));
+    if (i % 1000 == 0) {
+      gpr_log(GPR_INFO, "Send count = %d", i);
+    }
+  }
+  stream->WritesDone();
+  receiver.join();
+}
+
+}  // namespace testing
+}  // namespace grpc
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}