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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 requests to ubrpc server every 1 second.
- // This client can access the server in public/baidu-rpc-ub/example/echo_c++_compack_ubrpc as well.
- #include <gflags/gflags.h>
- #include <butil/logging.h>
- #include <butil/time.h>
- #include <brpc/channel.h>
- #include "echo.pb.h"
- DEFINE_string(server, "0.0.0.0:8500", "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)");
- DEFINE_bool(multi_args, false,
- "The ubrpc to be accessed has more than one request and response");
- 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 = "ubrpc_compack";
- 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;
- }
- example::EchoService_Stub stub(&channel);
- example::EchoRequest request;
- example::EchoResponse response;
- example::MultiRequests multi_requests;
- example::MultiResponses multi_responses;
- brpc::Controller cntl;
-
- // Send a request and wait for the response every 1 second.
- int log_id = 0;
- while (!brpc::IsAskedToQuit()) {
- // Reset before reuse.
- cntl.Reset();
-
- if (!FLAGS_multi_args) {
- request.Clear();
- response.Clear();
- request.set_message("hello world");
- for (int i = (log_id % 7); i > 0; --i) {
- example::Object* obj = request.add_objects();
- obj->set_id(log_id);
- if (log_id % 2 == 0) {
- obj->set_value(log_id);
- }
- if (log_id % 3 == 0) {
- obj->set_note("foo");
- }
- if (log_id % 5 == 0) {
- for (int j = (log_id % 3); j > 0; --j) {
- example::Parameter* param = obj->add_params();
- if (log_id % 2 == 0) {
- param->set_x(log_id);
- }
- if (log_id % 3 == 0) {
- param->set_y("bar");
- }
- if (log_id % 5 == 0) {
- param->set_z(log_id);
- }
- }
- }
- }
- } else {
- multi_requests.Clear();
- multi_responses.Clear();
- multi_requests.mutable_req1()->set_message("hello");
- multi_requests.mutable_req2()->set_message("world");
- cntl.set_idl_names(brpc::idl_multi_req_multi_res);
- }
- cntl.set_log_id(log_id ++); // set by user
- // Because `done'(last parameter) is NULL, this function waits until
- // the response comes back or error occurs(including timedout).
- if (!FLAGS_multi_args) {
- // [idl] void Echo(EchoRequest req, out EchoResponse res);
- stub.Echo(&cntl, &request, &response, NULL);
- } else {
- // [idl] uint32_t EchoWithMultiArgs(EchoRequest req1, EchoRequest req2,
- // out EchoResponse res1, out EchoResponse res2);
- stub.EchoWithMultiArgs(&cntl, &multi_requests, &multi_responses, NULL);
- }
- if (!cntl.Failed()) {
- if (!FLAGS_multi_args) {
- LOG(INFO) << "Received response from " << cntl.remote_side()
- << ": " << response.message()
- << " latency=" << cntl.latency_us() << "us";
- } else {
- LOG(INFO) << "Received response from " << cntl.remote_side()
- << ": res1=" << multi_responses.res1().message()
- << " res2=" << multi_responses.res2().message()
- << " result=" << cntl.idl_result()
- << " latency=" << cntl.latency_us() << "us";
- }
- } else {
- LOG(ERROR) << "Fail to send request, " << cntl.ErrorText();
- }
- sleep(1);
- }
- LOG(INFO) << "EchoClient is going to quit";
- return 0;
- }
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