Add helloworld example in c++

cpp/helloworld/Makefile

@@ -0,0 +1,47 @@
+#
+# Copyright 2015, 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.
+#
+
+CC=g++
+CCFLAGS=-I/usr/local/include -std=c++11
+LDFLAGS=-L/usr/local/lib -lgrpc -lgrpc++ -lprotobuf -ldl
+
+all: greeter_client greeter_server
+
+greeter_client: helloworld.pb.cc greeter_client.cc
+	$(CC) $(CCFLAGS) greeter_client.cc helloworld.pb.cc $(LDFLAGS) -o greeter_client.out
+
+
+greeter_server: helloworld.pb.cc greeter_server.cc
+	$(CC) $(CCFLAGS) greeter_server.cc helloworld.pb.cc $(LDFLAGS) -o greeter_server.out
+
+clean:
+	rm *.out
+

cpp/helloworld/greeter_client.cc

@@ -0,0 +1,91 @@
+/*
+ *
+ * Copyright 2015, 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 <iostream>
+#include <memory>
+#include <string>
+
+#include <grpc/grpc.h>
+#include <grpc++/channel_arguments.h>
+#include <grpc++/channel_interface.h>
+#include <grpc++/client_context.h>
+#include <grpc++/create_channel.h>
+#include <grpc++/status.h>
+#include "helloworld.pb.h"
+
+using grpc::ChannelArguments;
+using grpc::ChannelInterface;
+using grpc::ClientContext;
+using grpc::Status;
+using helloworld::HelloRequest;
+using helloworld::HelloReply;
+using helloworld::Greeter;
+
+class GreeterClient {
+ public:
+  GreeterClient(std::shared_ptr<ChannelInterface> channel)
+      : stub_(Greeter::NewStub(channel)) {}
+
+  std::string SayHello(const std::string& user) {
+    HelloRequest request;
+    request.set_name(user);
+    HelloReply reply;
+    ClientContext context;
+
+    Status status = stub_->sayHello(&context, request, &reply);
+    if (status.IsOk()) {
+      return reply.message();
+    } else {
+      return "Rpc failed";
+    }
+  }
+
+  void Shutdown() { stub_.reset(); }
+
+ private:
+  std::unique_ptr<Greeter::Stub> stub_;
+};
+
+int main(int argc, char** argv) {
+  grpc_init();
+
+  GreeterClient greeter(
+      grpc::CreateChannel("localhost:50051", ChannelArguments()));
+  std::string user("world");
+  std::string reply = greeter.SayHello(user);
+  std::cout << "Greeter received: " << reply << std::endl;
+
+  greeter.Shutdown();
+
+  grpc_shutdown();
+}

cpp/helloworld/greeter_server.cc

@@ -0,0 +1,84 @@
+/*
+ *
+ * Copyright 2015, 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 <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+
+#include <grpc/grpc.h>
+#include <grpc++/server.h>
+#include <grpc++/server_builder.h>
+#include <grpc++/server_context.h>
+#include <grpc++/status.h>
+#include "helloworld.pb.h"
+
+using grpc::Server;
+using grpc::ServerBuilder;
+using grpc::ServerContext;
+using grpc::Status;
+using helloworld::HelloRequest;
+using helloworld::HelloReply;
+using helloworld::Greeter;
+
+class GreeterServiceImpl final : public Greeter::Service {
+  Status sayHello(ServerContext* context, const HelloRequest* request,
+                  HelloReply* reply) override {
+    std::string prefix("Hello ");
+    reply->set_message(prefix + request->name());
+    return Status::OK;
+  }
+};
+
+void RunServer() {
+  std::string server_address("0.0.0.0:50051");
+  GreeterServiceImpl service;
+
+  ServerBuilder builder;
+  builder.AddPort(server_address);
+  builder.RegisterService(&service);
+  std::unique_ptr<Server> server(builder.BuildAndStart());
+  std::cout << "Server listening on " << server_address << std::endl;
+  while (true) {
+    std::this_thread::sleep_for(std::chrono::seconds(5));
+  }
+}
+
+int main(int argc, char** argv) {
+  grpc_init();
+
+  RunServer();
+
+  grpc_shutdown();
+  return 0;
+}

cpp/helloworld/helloworld.pb.cc

@@ -0,0 +1,640 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: helloworld.proto
+
+#define INTERNAL_SUPPRESS_PROTOBUF_FIELD_DEPRECATION
+#include "helloworld.pb.h"
+
+#include <algorithm>
+
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/stubs/once.h>
+#include <google/protobuf/io/coded_stream.h>
+#include <google/protobuf/wire_format_lite_inl.h>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/generated_message_reflection.h>
+#include <google/protobuf/reflection_ops.h>
+#include <google/protobuf/wire_format.h>
+#include <grpc++/async_unary_call.h>
+#include <grpc++/channel_interface.h>
+#include <grpc++/impl/client_unary_call.h>
+#include <grpc++/impl/rpc_method.h>
+#include <grpc++/impl/rpc_service_method.h>
+#include <grpc++/impl/service_type.h>
+#include <grpc++/stream.h>
+// @@protoc_insertion_point(includes)
+
+namespace helloworld {
+
+namespace {
+
+const ::google::protobuf::Descriptor* HelloRequest_descriptor_ = NULL;
+const ::google::protobuf::internal::GeneratedMessageReflection*
+  HelloRequest_reflection_ = NULL;
+const ::google::protobuf::Descriptor* HelloReply_descriptor_ = NULL;
+const ::google::protobuf::internal::GeneratedMessageReflection*
+  HelloReply_reflection_ = NULL;
+
+}  // namespace
+
+
+void protobuf_AssignDesc_helloworld_2eproto() {
+  protobuf_AddDesc_helloworld_2eproto();
+  const ::google::protobuf::FileDescriptor* file =
+    ::google::protobuf::DescriptorPool::generated_pool()->FindFileByName(
+      "helloworld.proto");
+  GOOGLE_CHECK(file != NULL);
+  HelloRequest_descriptor_ = file->message_type(0);
+  static const int HelloRequest_offsets_[1] = {
+    GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(HelloRequest, name_),
+  };
+  HelloRequest_reflection_ =
+    ::google::protobuf::internal::GeneratedMessageReflection::NewGeneratedMessageReflection(
+      HelloRequest_descriptor_,
+      HelloRequest::default_instance_,
+      HelloRequest_offsets_,
+      -1,
+      -1,
+      -1,
+      sizeof(HelloRequest),
+      GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(HelloRequest, _internal_metadata_),
+      GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(HelloRequest, _is_default_instance_));
+  HelloReply_descriptor_ = file->message_type(1);
+  static const int HelloReply_offsets_[1] = {
+    GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(HelloReply, message_),
+  };
+  HelloReply_reflection_ =
+    ::google::protobuf::internal::GeneratedMessageReflection::NewGeneratedMessageReflection(
+      HelloReply_descriptor_,
+      HelloReply::default_instance_,
+      HelloReply_offsets_,
+      -1,
+      -1,
+      -1,
+      sizeof(HelloReply),
+      GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(HelloReply, _internal_metadata_),
+      GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(HelloReply, _is_default_instance_));
+}
+
+namespace {
+
+GOOGLE_PROTOBUF_DECLARE_ONCE(protobuf_AssignDescriptors_once_);
+inline void protobuf_AssignDescriptorsOnce() {
+  ::google::protobuf::GoogleOnceInit(&protobuf_AssignDescriptors_once_,
+                 &protobuf_AssignDesc_helloworld_2eproto);
+}
+
+void protobuf_RegisterTypes(const ::std::string&) {
+  protobuf_AssignDescriptorsOnce();
+  ::google::protobuf::MessageFactory::InternalRegisterGeneratedMessage(
+      HelloRequest_descriptor_, &HelloRequest::default_instance());
+  ::google::protobuf::MessageFactory::InternalRegisterGeneratedMessage(
+      HelloReply_descriptor_, &HelloReply::default_instance());
+}
+
+}  // namespace
+
+void protobuf_ShutdownFile_helloworld_2eproto() {
+  delete HelloRequest::default_instance_;
+  delete HelloRequest_reflection_;
+  delete HelloReply::default_instance_;
+  delete HelloReply_reflection_;
+}
+
+void protobuf_AddDesc_helloworld_2eproto() {
+  static bool already_here = false;
+  if (already_here) return;
+  already_here = true;
+  GOOGLE_PROTOBUF_VERIFY_VERSION;
+
+  ::google::protobuf::DescriptorPool::InternalAddGeneratedFile(
+    "\n\020helloworld.proto\022\nhelloworld\"\034\n\014HelloR"
+    "equest\022\014\n\004name\030\001 \001(\t\"\035\n\nHelloReply\022\017\n\007me"
+    "ssage\030\001 \001(\t2I\n\007Greeter\022>\n\010sayHello\022\030.hel"
+    "loworld.HelloRequest\032\026.helloworld.HelloR"
+    "eply\"\000B\t\n\007ex.grpcb\006proto3", 185);
+  ::google::protobuf::MessageFactory::InternalRegisterGeneratedFile(
+    "helloworld.proto", &protobuf_RegisterTypes);
+  HelloRequest::default_instance_ = new HelloRequest();
+  HelloReply::default_instance_ = new HelloReply();
+  HelloRequest::default_instance_->InitAsDefaultInstance();
+  HelloReply::default_instance_->InitAsDefaultInstance();
+  ::google::protobuf::internal::OnShutdown(&protobuf_ShutdownFile_helloworld_2eproto);
+}
+
+// Force AddDescriptors() to be called at static initialization time.
+struct StaticDescriptorInitializer_helloworld_2eproto {
+  StaticDescriptorInitializer_helloworld_2eproto() {
+    protobuf_AddDesc_helloworld_2eproto();
+  }
+} static_descriptor_initializer_helloworld_2eproto_;
+
+namespace {
+
+static void MergeFromFail(int line) GOOGLE_ATTRIBUTE_COLD;
+static void MergeFromFail(int line) {
+  GOOGLE_CHECK(false) << __FILE__ << ":" << line;
+}
+
+}  // namespace
+
+
+// ===================================================================
+
+#ifndef _MSC_VER
+const int HelloRequest::kNameFieldNumber;
+#endif  // !_MSC_VER
+
+HelloRequest::HelloRequest()
+  : ::google::protobuf::Message() , _internal_metadata_(NULL)  {
+  SharedCtor();
+  // @@protoc_insertion_point(constructor:helloworld.HelloRequest)
+}
+
+void HelloRequest::InitAsDefaultInstance() {
+  _is_default_instance_ = true;
+}
+
+HelloRequest::HelloRequest(const HelloRequest& from)
+  : ::google::protobuf::Message(),
+    _internal_metadata_(NULL) {
+  SharedCtor();
+  MergeFrom(from);
+  // @@protoc_insertion_point(copy_constructor:helloworld.HelloRequest)
+}
+
+void HelloRequest::SharedCtor() {
+    _is_default_instance_ = false;
+  ::google::protobuf::internal::GetEmptyString();
+  _cached_size_ = 0;
+  name_.UnsafeSetDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+
+HelloRequest::~HelloRequest() {
+  // @@protoc_insertion_point(destructor:helloworld.HelloRequest)
+  SharedDtor();
+}
+
+void HelloRequest::SharedDtor() {
+  name_.DestroyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  if (this != default_instance_) {
+  }
+}
+
+void HelloRequest::SetCachedSize(int size) const {
+  GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();
+  _cached_size_ = size;
+  GOOGLE_SAFE_CONCURRENT_WRITES_END();
+}
+const ::google::protobuf::Descriptor* HelloRequest::descriptor() {
+  protobuf_AssignDescriptorsOnce();
+  return HelloRequest_descriptor_;
+}
+
+const HelloRequest& HelloRequest::default_instance() {
+  if (default_instance_ == NULL) protobuf_AddDesc_helloworld_2eproto();
+  return *default_instance_;
+}
+
+HelloRequest* HelloRequest::default_instance_ = NULL;
+
+HelloRequest* HelloRequest::New(::google::protobuf::Arena* arena) const {
+  HelloRequest* n = new HelloRequest;
+  if (arena != NULL) {
+    arena->Own(n);
+  }
+  return n;
+}
+
+void HelloRequest::Clear() {
+  name_.ClearToEmptyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+
+bool HelloRequest::MergePartialFromCodedStream(
+    ::google::protobuf::io::CodedInputStream* input) {
+#define DO_(EXPRESSION) if (!(EXPRESSION)) goto failure
+  ::google::protobuf::uint32 tag;
+  // @@protoc_insertion_point(parse_start:helloworld.HelloRequest)
+  for (;;) {
+    ::std::pair< ::google::protobuf::uint32, bool> p = input->ReadTagWithCutoff(127);
+    tag = p.first;
+    if (!p.second) goto handle_unusual;
+    switch (::google::protobuf::internal::WireFormatLite::GetTagFieldNumber(tag)) {
+      // optional string name = 1;
+      case 1: {
+        if (tag == 10) {
+          DO_(::google::protobuf::internal::WireFormatLite::ReadString(
+                input, this->mutable_name()));
+          ::google::protobuf::internal::WireFormat::VerifyUTF8StringNamedField(
+            this->name().data(), this->name().length(),
+            ::google::protobuf::internal::WireFormat::PARSE,
+            "helloworld.HelloRequest.name");
+        } else {
+          goto handle_unusual;
+        }
+        if (input->ExpectAtEnd()) goto success;
+        break;
+      }
+
+      default: {
+      handle_unusual:
+        if (tag == 0 ||
+            ::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==
+            ::google::protobuf::internal::WireFormatLite::WIRETYPE_END_GROUP) {
+          goto success;
+        }
+        DO_(::google::protobuf::internal::WireFormatLite::SkipField(input, tag));
+        break;
+      }
+    }
+  }
+success:
+  // @@protoc_insertion_point(parse_success:helloworld.HelloRequest)
+  return true;
+failure:
+  // @@protoc_insertion_point(parse_failure:helloworld.HelloRequest)
+  return false;
+#undef DO_
+}
+
+void HelloRequest::SerializeWithCachedSizes(
+    ::google::protobuf::io::CodedOutputStream* output) const {
+  // @@protoc_insertion_point(serialize_start:helloworld.HelloRequest)
+  // optional string name = 1;
+  if (this->name().size() > 0) {
+    ::google::protobuf::internal::WireFormat::VerifyUTF8StringNamedField(
+      this->name().data(), this->name().length(),
+      ::google::protobuf::internal::WireFormat::SERIALIZE,
+      "helloworld.HelloRequest.name");
+    ::google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(
+      1, this->name(), output);
+  }
+
+  // @@protoc_insertion_point(serialize_end:helloworld.HelloRequest)
+}
+
+::google::protobuf::uint8* HelloRequest::SerializeWithCachedSizesToArray(
+    ::google::protobuf::uint8* target) const {
+  // @@protoc_insertion_point(serialize_to_array_start:helloworld.HelloRequest)
+  // optional string name = 1;
+  if (this->name().size() > 0) {
+    ::google::protobuf::internal::WireFormat::VerifyUTF8StringNamedField(
+      this->name().data(), this->name().length(),
+      ::google::protobuf::internal::WireFormat::SERIALIZE,
+      "helloworld.HelloRequest.name");
+    target =
+      ::google::protobuf::internal::WireFormatLite::WriteStringToArray(
+        1, this->name(), target);
+  }
+
+  // @@protoc_insertion_point(serialize_to_array_end:helloworld.HelloRequest)
+  return target;
+}
+
+int HelloRequest::ByteSize() const {
+  int total_size = 0;
+
+  // optional string name = 1;
+  if (this->name().size() > 0) {
+    total_size += 1 +
+      ::google::protobuf::internal::WireFormatLite::StringSize(
+        this->name());
+  }
+
+  GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();
+  _cached_size_ = total_size;
+  GOOGLE_SAFE_CONCURRENT_WRITES_END();
+  return total_size;
+}
+
+void HelloRequest::MergeFrom(const ::google::protobuf::Message& from) {
+  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  const HelloRequest* source =
+    ::google::protobuf::internal::dynamic_cast_if_available<const HelloRequest*>(
+      &from);
+  if (source == NULL) {
+    ::google::protobuf::internal::ReflectionOps::Merge(from, this);
+  } else {
+    MergeFrom(*source);
+  }
+}
+
+void HelloRequest::MergeFrom(const HelloRequest& from) {
+  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (from.name().size() > 0) {
+
+    name_.AssignWithDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), from.name_);
+  }
+}
+
+void HelloRequest::CopyFrom(const ::google::protobuf::Message& from) {
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+void HelloRequest::CopyFrom(const HelloRequest& from) {
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool HelloRequest::IsInitialized() const {
+
+  return true;
+}
+
+void HelloRequest::Swap(HelloRequest* other) {
+  if (other == this) return;
+  InternalSwap(other);
+}
+void HelloRequest::InternalSwap(HelloRequest* other) {
+  name_.Swap(&other->name_);
+  _internal_metadata_.Swap(&other->_internal_metadata_);
+  std::swap(_cached_size_, other->_cached_size_);
+}
+
+::google::protobuf::Metadata HelloRequest::GetMetadata() const {
+  protobuf_AssignDescriptorsOnce();
+  ::google::protobuf::Metadata metadata;
+  metadata.descriptor = HelloRequest_descriptor_;
+  metadata.reflection = HelloRequest_reflection_;
+  return metadata;
+}
+
+
+// ===================================================================
+
+#ifndef _MSC_VER
+const int HelloReply::kMessageFieldNumber;
+#endif  // !_MSC_VER
+
+HelloReply::HelloReply()
+  : ::google::protobuf::Message() , _internal_metadata_(NULL)  {
+  SharedCtor();
+  // @@protoc_insertion_point(constructor:helloworld.HelloReply)
+}
+
+void HelloReply::InitAsDefaultInstance() {
+  _is_default_instance_ = true;
+}
+
+HelloReply::HelloReply(const HelloReply& from)
+  : ::google::protobuf::Message(),
+    _internal_metadata_(NULL) {
+  SharedCtor();
+  MergeFrom(from);
+  // @@protoc_insertion_point(copy_constructor:helloworld.HelloReply)
+}
+
+void HelloReply::SharedCtor() {
+    _is_default_instance_ = false;
+  ::google::protobuf::internal::GetEmptyString();
+  _cached_size_ = 0;
+  message_.UnsafeSetDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+
+HelloReply::~HelloReply() {
+  // @@protoc_insertion_point(destructor:helloworld.HelloReply)
+  SharedDtor();
+}
+
+void HelloReply::SharedDtor() {
+  message_.DestroyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+  if (this != default_instance_) {
+  }
+}
+
+void HelloReply::SetCachedSize(int size) const {
+  GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();
+  _cached_size_ = size;
+  GOOGLE_SAFE_CONCURRENT_WRITES_END();
+}
+const ::google::protobuf::Descriptor* HelloReply::descriptor() {
+  protobuf_AssignDescriptorsOnce();
+  return HelloReply_descriptor_;
+}
+
+const HelloReply& HelloReply::default_instance() {
+  if (default_instance_ == NULL) protobuf_AddDesc_helloworld_2eproto();
+  return *default_instance_;
+}
+
+HelloReply* HelloReply::default_instance_ = NULL;
+
+HelloReply* HelloReply::New(::google::protobuf::Arena* arena) const {
+  HelloReply* n = new HelloReply;
+  if (arena != NULL) {
+    arena->Own(n);
+  }
+  return n;
+}
+
+void HelloReply::Clear() {
+  message_.ClearToEmptyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+
+bool HelloReply::MergePartialFromCodedStream(
+    ::google::protobuf::io::CodedInputStream* input) {
+#define DO_(EXPRESSION) if (!(EXPRESSION)) goto failure
+  ::google::protobuf::uint32 tag;
+  // @@protoc_insertion_point(parse_start:helloworld.HelloReply)
+  for (;;) {
+    ::std::pair< ::google::protobuf::uint32, bool> p = input->ReadTagWithCutoff(127);
+    tag = p.first;
+    if (!p.second) goto handle_unusual;
+    switch (::google::protobuf::internal::WireFormatLite::GetTagFieldNumber(tag)) {
+      // optional string message = 1;
+      case 1: {
+        if (tag == 10) {
+          DO_(::google::protobuf::internal::WireFormatLite::ReadString(
+                input, this->mutable_message()));
+          ::google::protobuf::internal::WireFormat::VerifyUTF8StringNamedField(
+            this->message().data(), this->message().length(),
+            ::google::protobuf::internal::WireFormat::PARSE,
+            "helloworld.HelloReply.message");
+        } else {
+          goto handle_unusual;
+        }
+        if (input->ExpectAtEnd()) goto success;
+        break;
+      }
+
+      default: {
+      handle_unusual:
+        if (tag == 0 ||
+            ::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==
+            ::google::protobuf::internal::WireFormatLite::WIRETYPE_END_GROUP) {
+          goto success;
+        }
+        DO_(::google::protobuf::internal::WireFormatLite::SkipField(input, tag));
+        break;
+      }
+    }
+  }
+success:
+  // @@protoc_insertion_point(parse_success:helloworld.HelloReply)
+  return true;
+failure:
+  // @@protoc_insertion_point(parse_failure:helloworld.HelloReply)
+  return false;
+#undef DO_
+}
+
+void HelloReply::SerializeWithCachedSizes(
+    ::google::protobuf::io::CodedOutputStream* output) const {
+  // @@protoc_insertion_point(serialize_start:helloworld.HelloReply)
+  // optional string message = 1;
+  if (this->message().size() > 0) {
+    ::google::protobuf::internal::WireFormat::VerifyUTF8StringNamedField(
+      this->message().data(), this->message().length(),
+      ::google::protobuf::internal::WireFormat::SERIALIZE,
+      "helloworld.HelloReply.message");
+    ::google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(
+      1, this->message(), output);
+  }
+
+  // @@protoc_insertion_point(serialize_end:helloworld.HelloReply)
+}
+
+::google::protobuf::uint8* HelloReply::SerializeWithCachedSizesToArray(
+    ::google::protobuf::uint8* target) const {
+  // @@protoc_insertion_point(serialize_to_array_start:helloworld.HelloReply)
+  // optional string message = 1;
+  if (this->message().size() > 0) {
+    ::google::protobuf::internal::WireFormat::VerifyUTF8StringNamedField(
+      this->message().data(), this->message().length(),
+      ::google::protobuf::internal::WireFormat::SERIALIZE,
+      "helloworld.HelloReply.message");
+    target =
+      ::google::protobuf::internal::WireFormatLite::WriteStringToArray(
+        1, this->message(), target);
+  }
+
+  // @@protoc_insertion_point(serialize_to_array_end:helloworld.HelloReply)
+  return target;
+}
+
+int HelloReply::ByteSize() const {
+  int total_size = 0;
+
+  // optional string message = 1;
+  if (this->message().size() > 0) {
+    total_size += 1 +
+      ::google::protobuf::internal::WireFormatLite::StringSize(
+        this->message());
+  }
+
+  GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();
+  _cached_size_ = total_size;
+  GOOGLE_SAFE_CONCURRENT_WRITES_END();
+  return total_size;
+}
+
+void HelloReply::MergeFrom(const ::google::protobuf::Message& from) {
+  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  const HelloReply* source =
+    ::google::protobuf::internal::dynamic_cast_if_available<const HelloReply*>(
+      &from);
+  if (source == NULL) {
+    ::google::protobuf::internal::ReflectionOps::Merge(from, this);
+  } else {
+    MergeFrom(*source);
+  }
+}
+
+void HelloReply::MergeFrom(const HelloReply& from) {
+  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (from.message().size() > 0) {
+
+    message_.AssignWithDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), from.message_);
+  }
+}
+
+void HelloReply::CopyFrom(const ::google::protobuf::Message& from) {
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+void HelloReply::CopyFrom(const HelloReply& from) {
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool HelloReply::IsInitialized() const {
+
+  return true;
+}
+
+void HelloReply::Swap(HelloReply* other) {
+  if (other == this) return;
+  InternalSwap(other);
+}
+void HelloReply::InternalSwap(HelloReply* other) {
+  message_.Swap(&other->message_);
+  _internal_metadata_.Swap(&other->_internal_metadata_);
+  std::swap(_cached_size_, other->_cached_size_);
+}
+
+::google::protobuf::Metadata HelloReply::GetMetadata() const {
+  protobuf_AssignDescriptorsOnce();
+  ::google::protobuf::Metadata metadata;
+  metadata.descriptor = HelloReply_descriptor_;
+  metadata.reflection = HelloReply_reflection_;
+  return metadata;
+}
+
+
+static const char* Greeter_method_names[] = {
+  "/helloworld.Greeter/sayHello",
+};
+
+Greeter::Stub* Greeter::NewStub(const std::shared_ptr< ::grpc::ChannelInterface>& channel) {
+  Greeter::Stub* stub = new Greeter::Stub();
+  stub->set_channel(channel);
+  return stub;
+};
+
+::grpc::Status Greeter::Stub::sayHello(::grpc::ClientContext* context, const ::helloworld::HelloRequest& request, ::helloworld::HelloReply* response) {
+  return ::grpc::BlockingUnaryCall(channel(),::grpc::RpcMethod(Greeter_method_names[0]), context, request, response);
+}
+
+::grpc::ClientAsyncResponseReader< ::helloworld::HelloReply>* Greeter::Stub::sayHello(::grpc::ClientContext* context, const ::helloworld::HelloRequest& request, ::grpc::CompletionQueue* cq, void* tag) {
+  return new ::grpc::ClientAsyncResponseReader< ::helloworld::HelloReply>(channel(), cq, ::grpc::RpcMethod(Greeter_method_names[0]), context, request, tag);
+}
+
+Greeter::AsyncService::AsyncService(::grpc::CompletionQueue* cq) : ::grpc::AsynchronousService(cq, Greeter_method_names, 1) {}
+
+Greeter::Service::~Service() {
+  delete service_;
+}
+
+::grpc::Status Greeter::Service::sayHello(::grpc::ServerContext* context, const ::helloworld::HelloRequest* request, ::helloworld::HelloReply* response) {
+  return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED);
+}
+
+void Greeter::AsyncService::RequestsayHello(::grpc::ServerContext* context, ::helloworld::HelloRequest* request, ::grpc::ServerAsyncResponseWriter< ::helloworld::HelloReply>* response, ::grpc::CompletionQueue* cq, void* tag) {
+  AsynchronousService::RequestAsyncUnary(0, context, request, response, cq, tag);
+}
+
+::grpc::RpcService* Greeter::Service::service() {
+  if (service_ != nullptr) {
+    return service_;
+  }
+  service_ = new ::grpc::RpcService();
+  service_->AddMethod(new ::grpc::RpcServiceMethod(
+      Greeter_method_names[0],
+      ::grpc::RpcMethod::NORMAL_RPC,
+      new ::grpc::RpcMethodHandler< Greeter::Service, ::helloworld::HelloRequest, ::helloworld::HelloReply>(
+          std::function< ::grpc::Status(Greeter::Service*, ::grpc::ServerContext*, const ::helloworld::HelloRequest*, ::helloworld::HelloReply*)>(&Greeter::Service::sayHello), this),
+      new ::helloworld::HelloRequest, new ::helloworld::HelloReply));
+  return service_;
+}
+
+
+// @@protoc_insertion_point(namespace_scope)
+
+}  // namespace helloworld
+
+// @@protoc_insertion_point(global_scope)

cpp/helloworld/helloworld.pb.h

@@ -0,0 +1,359 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: helloworld.proto
+
+#ifndef PROTOBUF_helloworld_2eproto__INCLUDED
+#define PROTOBUF_helloworld_2eproto__INCLUDED
+
+#include <string>
+
+#include <google/protobuf/stubs/common.h>
+
+#if GOOGLE_PROTOBUF_VERSION < 3000000
+#error This file was generated by a newer version of protoc which is
+#error incompatible with your Protocol Buffer headers.  Please update
+#error your headers.
+#endif
+#if 3000000 < GOOGLE_PROTOBUF_MIN_PROTOC_VERSION
+#error This file was generated by an older version of protoc which is
+#error incompatible with your Protocol Buffer headers.  Please
+#error regenerate this file with a newer version of protoc.
+#endif
+
+#include <google/protobuf/arena.h>
+#include <google/protobuf/arenastring.h>
+#include <google/protobuf/generated_message_util.h>
+#include <google/protobuf/metadata.h>
+#include <google/protobuf/message.h>
+#include <google/protobuf/repeated_field.h>
+#include <google/protobuf/extension_set.h>
+#include <google/protobuf/unknown_field_set.h>
+#include <grpc++/impl/internal_stub.h>
+#include <grpc++/impl/service_type.h>
+#include <grpc++/status.h>
+
+namespace grpc {
+class CompletionQueue;
+class ChannelInterface;
+class RpcService;
+class ServerContext;
+template <class OutMessage> class ClientAsyncResponseReader;
+template <class OutMessage> class ServerAsyncResponseWriter;
+}  // namespace grpc
+// @@protoc_insertion_point(includes)
+
+namespace helloworld {
+
+// Internal implementation detail -- do not call these.
+void protobuf_AddDesc_helloworld_2eproto();
+void protobuf_AssignDesc_helloworld_2eproto();
+void protobuf_ShutdownFile_helloworld_2eproto();
+
+class HelloRequest;
+class HelloReply;
+
+// ===================================================================
+
+class HelloRequest : public ::google::protobuf::Message {
+ public:
+  HelloRequest();
+  virtual ~HelloRequest();
+
+  HelloRequest(const HelloRequest& from);
+
+  inline HelloRequest& operator=(const HelloRequest& from) {
+    CopyFrom(from);
+    return *this;
+  }
+
+  static const ::google::protobuf::Descriptor* descriptor();
+  static const HelloRequest& default_instance();
+
+  void Swap(HelloRequest* other);
+
+  // implements Message ----------------------------------------------
+
+  inline HelloRequest* New() const { return New(NULL); }
+
+  HelloRequest* New(::google::protobuf::Arena* arena) const;
+  void CopyFrom(const ::google::protobuf::Message& from);
+  void MergeFrom(const ::google::protobuf::Message& from);
+  void CopyFrom(const HelloRequest& from);
+  void MergeFrom(const HelloRequest& from);
+  void Clear();
+  bool IsInitialized() const;
+
+  int ByteSize() const;
+  bool MergePartialFromCodedStream(
+      ::google::protobuf::io::CodedInputStream* input);
+  void SerializeWithCachedSizes(
+      ::google::protobuf::io::CodedOutputStream* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  int GetCachedSize() const { return _cached_size_; }
+  private:
+  void SharedCtor();
+  void SharedDtor();
+  void SetCachedSize(int size) const;
+  void InternalSwap(HelloRequest* other);
+  private:
+  inline ::google::protobuf::Arena* GetArenaNoVirtual() const {
+    return _internal_metadata_.arena();
+  }
+  inline void* MaybeArenaPtr() const {
+    return _internal_metadata_.raw_arena_ptr();
+  }
+  public:
+
+  ::google::protobuf::Metadata GetMetadata() const;
+
+  // nested types ----------------------------------------------------
+
+  // accessors -------------------------------------------------------
+
+  // optional string name = 1;
+  inline void clear_name();
+  static const int kNameFieldNumber = 1;
+  inline const ::std::string& name() const;
+  inline void set_name(const ::std::string& value);
+  inline void set_name(const char* value);
+  inline void set_name(const char* value, size_t size);
+  inline ::std::string* mutable_name();
+  inline ::std::string* release_name();
+  inline void set_allocated_name(::std::string* name);
+
+  // @@protoc_insertion_point(class_scope:helloworld.HelloRequest)
+ private:
+
+  ::google::protobuf::internal::InternalMetadataWithArena _internal_metadata_;
+  bool _is_default_instance_;
+  ::google::protobuf::internal::ArenaStringPtr name_;
+  mutable int _cached_size_;
+  friend void  protobuf_AddDesc_helloworld_2eproto();
+  friend void protobuf_AssignDesc_helloworld_2eproto();
+  friend void protobuf_ShutdownFile_helloworld_2eproto();
+
+  void InitAsDefaultInstance();
+  static HelloRequest* default_instance_;
+};
+// -------------------------------------------------------------------
+
+class HelloReply : public ::google::protobuf::Message {
+ public:
+  HelloReply();
+  virtual ~HelloReply();
+
+  HelloReply(const HelloReply& from);
+
+  inline HelloReply& operator=(const HelloReply& from) {
+    CopyFrom(from);
+    return *this;
+  }
+
+  static const ::google::protobuf::Descriptor* descriptor();
+  static const HelloReply& default_instance();
+
+  void Swap(HelloReply* other);
+
+  // implements Message ----------------------------------------------
+
+  inline HelloReply* New() const { return New(NULL); }
+
+  HelloReply* New(::google::protobuf::Arena* arena) const;
+  void CopyFrom(const ::google::protobuf::Message& from);
+  void MergeFrom(const ::google::protobuf::Message& from);
+  void CopyFrom(const HelloReply& from);
+  void MergeFrom(const HelloReply& from);
+  void Clear();
+  bool IsInitialized() const;
+
+  int ByteSize() const;
+  bool MergePartialFromCodedStream(
+      ::google::protobuf::io::CodedInputStream* input);
+  void SerializeWithCachedSizes(
+      ::google::protobuf::io::CodedOutputStream* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  int GetCachedSize() const { return _cached_size_; }
+  private:
+  void SharedCtor();
+  void SharedDtor();
+  void SetCachedSize(int size) const;
+  void InternalSwap(HelloReply* other);
+  private:
+  inline ::google::protobuf::Arena* GetArenaNoVirtual() const {
+    return _internal_metadata_.arena();
+  }
+  inline void* MaybeArenaPtr() const {
+    return _internal_metadata_.raw_arena_ptr();
+  }
+  public:
+
+  ::google::protobuf::Metadata GetMetadata() const;
+
+  // nested types ----------------------------------------------------
+
+  // accessors -------------------------------------------------------
+
+  // optional string message = 1;
+  inline void clear_message();
+  static const int kMessageFieldNumber = 1;
+  inline const ::std::string& message() const;
+  inline void set_message(const ::std::string& value);
+  inline void set_message(const char* value);
+  inline void set_message(const char* value, size_t size);
+  inline ::std::string* mutable_message();
+  inline ::std::string* release_message();
+  inline void set_allocated_message(::std::string* message);
+
+  // @@protoc_insertion_point(class_scope:helloworld.HelloReply)
+ private:
+
+  ::google::protobuf::internal::InternalMetadataWithArena _internal_metadata_;
+  bool _is_default_instance_;
+  ::google::protobuf::internal::ArenaStringPtr message_;
+  mutable int _cached_size_;
+  friend void  protobuf_AddDesc_helloworld_2eproto();
+  friend void protobuf_AssignDesc_helloworld_2eproto();
+  friend void protobuf_ShutdownFile_helloworld_2eproto();
+
+  void InitAsDefaultInstance();
+  static HelloReply* default_instance_;
+};
+// ===================================================================
+
+
+// ===================================================================
+
+// HelloRequest
+
+// optional string name = 1;
+inline void HelloRequest::clear_name() {
+  name_.ClearToEmptyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+inline const ::std::string& HelloRequest::name() const {
+  // @@protoc_insertion_point(field_get:helloworld.HelloRequest.name)
+  return name_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+inline void HelloRequest::set_name(const ::std::string& value) {
+  
+  name_.SetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), value);
+  // @@protoc_insertion_point(field_set:helloworld.HelloRequest.name)
+}
+inline void HelloRequest::set_name(const char* value) {
+  
+  name_.SetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), ::std::string(value));
+  // @@protoc_insertion_point(field_set_char:helloworld.HelloRequest.name)
+}
+inline void HelloRequest::set_name(const char* value, size_t size) {
+  
+  name_.SetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited(),
+      ::std::string(reinterpret_cast<const char*>(value), size));
+  // @@protoc_insertion_point(field_set_pointer:helloworld.HelloRequest.name)
+}
+inline ::std::string* HelloRequest::mutable_name() {
+  
+  // @@protoc_insertion_point(field_mutable:helloworld.HelloRequest.name)
+  return name_.MutableNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+inline ::std::string* HelloRequest::release_name() {
+  
+  return name_.ReleaseNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+inline void HelloRequest::set_allocated_name(::std::string* name) {
+  if (name != NULL) {
+    
+  } else {
+    
+  }
+  name_.SetAllocatedNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), name);
+  // @@protoc_insertion_point(field_set_allocated:helloworld.HelloRequest.name)
+}
+
+// -------------------------------------------------------------------
+
+// HelloReply
+
+// optional string message = 1;
+inline void HelloReply::clear_message() {
+  message_.ClearToEmptyNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+inline const ::std::string& HelloReply::message() const {
+  // @@protoc_insertion_point(field_get:helloworld.HelloReply.message)
+  return message_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+inline void HelloReply::set_message(const ::std::string& value) {
+  
+  message_.SetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), value);
+  // @@protoc_insertion_point(field_set:helloworld.HelloReply.message)
+}
+inline void HelloReply::set_message(const char* value) {
+  
+  message_.SetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), ::std::string(value));
+  // @@protoc_insertion_point(field_set_char:helloworld.HelloReply.message)
+}
+inline void HelloReply::set_message(const char* value, size_t size) {
+  
+  message_.SetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited(),
+      ::std::string(reinterpret_cast<const char*>(value), size));
+  // @@protoc_insertion_point(field_set_pointer:helloworld.HelloReply.message)
+}
+inline ::std::string* HelloReply::mutable_message() {
+  
+  // @@protoc_insertion_point(field_mutable:helloworld.HelloReply.message)
+  return message_.MutableNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+inline ::std::string* HelloReply::release_message() {
+  
+  return message_.ReleaseNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
+}
+inline void HelloReply::set_allocated_message(::std::string* message) {
+  if (message != NULL) {
+    
+  } else {
+    
+  }
+  message_.SetAllocatedNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), message);
+  // @@protoc_insertion_point(field_set_allocated:helloworld.HelloReply.message)
+}
+
+
+class Greeter final {
+ public:
+  class Stub final : public ::grpc::InternalStub {
+   public:
+    ::grpc::Status sayHello(::grpc::ClientContext* context, const ::helloworld::HelloRequest& request, ::helloworld::HelloReply* response);
+    ::grpc::ClientAsyncResponseReader< ::helloworld::HelloReply>* sayHello(::grpc::ClientContext* context, const ::helloworld::HelloRequest& request, ::grpc::CompletionQueue* cq, void* tag);
+  };
+  static Stub* NewStub(const std::shared_ptr< ::grpc::ChannelInterface>& channel);
+
+  class Service : public ::grpc::SynchronousService {
+   public:
+    Service() : service_(nullptr) {}
+    virtual ~Service();
+    virtual ::grpc::Status sayHello(::grpc::ServerContext* context, const ::helloworld::HelloRequest* request, ::helloworld::HelloReply* response);
+    ::grpc::RpcService* service() override final;
+   private:
+    ::grpc::RpcService* service_;
+  };
+  class AsyncService final : public ::grpc::AsynchronousService {
+   public:
+    explicit AsyncService(::grpc::CompletionQueue* cq);
+    ~AsyncService() {};
+    void RequestsayHello(::grpc::ServerContext* context, ::helloworld::HelloRequest* request, ::grpc::ServerAsyncResponseWriter< ::helloworld::HelloReply>* response, ::grpc::CompletionQueue* cq, void *tag);
+  };
+};
+
+// @@protoc_insertion_point(namespace_scope)
+
+}  // namespace helloworld
+
+#ifndef SWIG
+namespace google {
+namespace protobuf {
+
+
+}  // namespace protobuf
+}  // namespace google
+#endif  // SWIG
+
+// @@protoc_insertion_point(global_scope)
+
+#endif  // PROTOBUF_helloworld_2eproto__INCLUDED