| /* |
| * |
| * 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(); |
| } |