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- // Licensed to the Apache Software Foundation (ASF) under one
- // or more contributor license agreements. See the NOTICE file
- // distributed with this work for additional information
- // regarding copyright ownership. The ASF licenses this file
- // to you 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 thrift requests to server every 1 second.
- #include <gflags/gflags.h>
- #include "gen-cpp/echo_types.h"
- #include <butil/logging.h>
- #include <butil/time.h>
- #include <brpc/channel.h>
- #include <brpc/thrift_message.h>
- #include <bvar/bvar.h>
- bvar::LatencyRecorder g_latency_recorder("client");
- DEFINE_string(server, "0.0.0.0:8019", "IP Address of server");
- DEFINE_string(load_balancer, "", "The algorithm for load balancing");
- 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.
- google::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_THRIFT;
- options.timeout_ms = FLAGS_timeout_ms/*milliseconds*/;
- options.max_retry = FLAGS_max_retry;
- if (channel.Init(FLAGS_server.c_str(), FLAGS_load_balancer.c_str(), &options) != 0) {
- LOG(ERROR) << "Fail to initialize channel";
- return -1;
- }
- brpc::ThriftStub stub(&channel);
- // Send a request and wait for the response every 1 second.
- while (!brpc::IsAskedToQuit()) {
- brpc::Controller cntl;
- example::EchoRequest req;
- example::EchoResponse res;
- req.__set_data("hello");
- req.__set_need_by_proxy(10);
- stub.CallMethod("Echo", &cntl, &req, &res, NULL);
- if (cntl.Failed()) {
- LOG(ERROR) << "Fail to send thrift request, " << cntl.ErrorText();
- sleep(1); // Remove this sleep in production code.
- } else {
- g_latency_recorder << cntl.latency_us();
- LOG(INFO) << "Thrift Response: " << res;
- }
- LOG_EVERY_SECOND(INFO)
- << "Sending thrift requests at qps=" << g_latency_recorder.qps(1)
- << " latency=" << g_latency_recorder.latency(1);
- sleep(1);
- }
- LOG(INFO) << "EchoClient is going to quit";
- return 0;
- }
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