// 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 client sending requests to server in batch every 1 second. #include <gflags/gflags.h> #include <butil/logging.h> #include <brpc/channel.h> #include <brpc/stream.h> #include "echo.pb.h" DEFINE_bool(send_attachment, true, "Carry attachment along with requests"); DEFINE_string(connection_type, "", "Connection type. Available values: single, pooled, short"); DEFINE_string(server, "0.0.0.0:8001", "IP Address of server"); DEFINE_int32(timeout_ms, 100, "RPC timeout in milliseconds"); DEFINE_int32(max_retry, 3, "Max retries(not including the first RPC)"); int main(int argc, char* argv[]) { // Parse gflags. We recommend you to use gflags as well. GFLAGS_NS::ParseCommandLineFlags(&argc, &argv, true); // A Channel represents a communication line to a Server. Notice that // Channel is thread-safe and can be shared by all threads in your program. brpc::Channel channel; // Initialize the channel, NULL means using default options. brpc::ChannelOptions options; options.protocol = brpc::PROTOCOL_BAIDU_STD; options.connection_type = FLAGS_connection_type; options.timeout_ms = FLAGS_timeout_ms/*milliseconds*/; options.max_retry = FLAGS_max_retry; if (channel.Init(FLAGS_server.c_str(), NULL) != 0) { LOG(ERROR) << "Fail to initialize channel"; return -1; } // Normally, you should not call a Channel directly, but instead construct // a stub Service wrapping it. stub can be shared by all threads as well. example::EchoService_Stub stub(&channel); brpc::Controller cntl; brpc::StreamId stream; if (brpc::StreamCreate(&stream, cntl, NULL) != 0) { LOG(ERROR) << "Fail to create stream"; return -1; } LOG(INFO) << "Created Stream=" << stream; example::EchoRequest request; example::EchoResponse response; request.set_message("I'm a RPC to connect stream"); stub.Echo(&cntl, &request, &response, NULL); if (cntl.Failed()) { LOG(ERROR) << "Fail to connect stream, " << cntl.ErrorText(); return -1; } while (!brpc::IsAskedToQuit()) { butil::IOBuf msg1; msg1.append("abcdefghijklmnopqrstuvwxyz"); CHECK_EQ(0, brpc::StreamWrite(stream, msg1)); butil::IOBuf msg2; msg2.append("0123456789"); CHECK_EQ(0, brpc::StreamWrite(stream, msg2)); sleep(1); } CHECK_EQ(0, brpc::StreamClose(stream)); LOG(INFO) << "EchoClient is going to quit"; return 0; }