// Copyright (c) 2014 Baidu, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // A server to receive requests from ubrpc clients. // This server can be accessed by the client in public/baidu-rpc-ub/example/echo_c++_compack_ubrpc as well. #include <gflags/gflags.h> #include <butil/logging.h> #include <brpc/server.h> #include <brpc/policy/ubrpc2pb_protocol.h> #include "echo.pb.h" DEFINE_int32(port, 8500, "TCP Port of this server"); DEFINE_int32(idle_timeout_s, -1, "Connection will be closed if there is no " "read/write operations during the last `idle_timeout_s'"); DEFINE_int32(logoff_ms, 2000, "Maximum duration of server's LOGOFF state " "(waiting for client to close connection before server stops)"); // Your implementation of EchoService namespace example { class EchoServiceImpl : public EchoService { public: EchoServiceImpl() {}; virtual ~EchoServiceImpl() {}; virtual void Echo(google::protobuf::RpcController* cntl_base, const EchoRequest* request, EchoResponse* response, google::protobuf::Closure* done) { // This object helps you to call done->Run() in RAII style. If you need // to process the request asynchronously, pass done_guard.release(). brpc::ClosureGuard done_guard(done); brpc::Controller* cntl = static_cast<brpc::Controller*>(cntl_base); LOG(INFO) << "Received request[log_id=" << cntl->log_id() << "] from " << cntl->remote_side() << " to " << cntl->local_side() << ": " << request->DebugString(); // Fill response. response->set_message(request->message()); // the idl method returns void, no need to set_idl_result(). } virtual void EchoWithMultiArgs( google::protobuf::RpcController* cntl_base, const MultiRequests* request, MultiResponses* response, google::protobuf::Closure* done) { // This object helps you to call done->Run() in RAII style. If you need // to process the request asynchronously, pass done_guard.release(). brpc::ClosureGuard done_guard(done); brpc::Controller* cntl = static_cast<brpc::Controller*>(cntl_base); LOG(INFO) << "Received request[log_id=" << cntl->log_id() << "] from " << cntl->remote_side() << " to " << cntl->local_side() << ": req1=" << request->req1().message() << " req2=" << request->req2().message(); // Fill response. response->mutable_res1()->set_message(request->req1().message()); response->mutable_res2()->set_message(request->req2().message()); // tell RPC that the idl method have more than one request/response. cntl->set_idl_names(brpc::idl_multi_req_multi_res); // the idl method returns uint32_t, we need to set it. cntl->set_idl_result(17); } }; } // namespace int main(int argc, char* argv[]) { // Parse gflags. We recommend you to use gflags as well. GFLAGS_NS::ParseCommandLineFlags(&argc, &argv, true); // Generally you only need one Server. brpc::Server server; // Instance of your service. example::EchoServiceImpl echo_service_impl; // Add the service into server. Notice the second parameter, because the // service is put on stack, we don't want server to delete it, otherwise // use brpc::SERVER_OWNS_SERVICE. if (server.AddService(&echo_service_impl, brpc::SERVER_DOESNT_OWN_SERVICE) != 0) { LOG(ERROR) << "Fail to add service"; return -1; } // Start the server. brpc::ServerOptions options; options.idle_timeout_sec = FLAGS_idle_timeout_s; options.nshead_service = new brpc::policy::UbrpcCompackAdaptor; if (server.Start(FLAGS_port, &options) != 0) { LOG(ERROR) << "Fail to start EchoServer"; return -1; } // Wait until Ctrl-C is pressed, then Stop() and Join() the server. server.RunUntilAskedToQuit(); return 0; }