gejun
78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
// Baidu RPC - A framework to host and access services throughout Baidu.
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// Copyright (c) 2014 Baidu.com, Inc. All Rights Reserved
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//
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// If you have any problem, contact us:
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// Baidu Hi : group 1296497
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// Email : pbrpc@baidu.com
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// Wiki : http://wiki.baidu.com/display/RPC/baidu-rpc
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// A server to receive EchoRequest and send back EchoResponse.
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#include <gflags/gflags.h>
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#include <base/logging.h>
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#include <base/string_printf.h>
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#include <brpc/server.h>
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#include "echo.pb.h"
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DEFINE_bool(echo_attachment, true, "Echo attachment as well");
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DEFINE_int32(port, 8002, "TCP Port of this server");
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DEFINE_int32(idle_timeout_s, -1, "Connection will be closed if there is no "
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"read/write operations during the last `idle_timeout_s'");
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DEFINE_int32(logoff_ms, 2000, "Maximum duration of server's LOGOFF state "
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"(waiting for client to close connection before server stops)");
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DEFINE_int32(max_concurrency, 0, "Limit of request processing in parallel");
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// Your implementation of example::EchoService
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class EchoServiceImpl : public example::EchoService {
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public:
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EchoServiceImpl() {}
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~EchoServiceImpl() {};
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void Echo(google::protobuf::RpcController* cntl_base,
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const example::EchoRequest* request,
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example::EchoResponse* response,
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google::protobuf::Closure* done) {
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brpc::ClosureGuard done_guard(done);
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brpc::Controller* cntl =
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static_cast<brpc::Controller*>(cntl_base);
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// Echo request and its attachment
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response->set_value(request->value());
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if (FLAGS_echo_attachment) {
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cntl->response_attachment().append(cntl->request_attachment());
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}
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}
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};
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int main(int argc, char* argv[]) {
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// Parse gflags. We recommend you to use gflags as well.
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google::ParseCommandLineFlags(&argc, &argv, true);
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// Generally you only need one Server.
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brpc::Server server;
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// Instance of your service.
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EchoServiceImpl echo_service_impl;
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// Add the service into server. Notice the second parameter, because the
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// service is put on stack, we don't want server to delete it, otherwise
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// use brpc::SERVER_OWNS_SERVICE.
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if (server.AddService(&echo_service_impl,
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brpc::SERVER_DOESNT_OWN_SERVICE) != 0) {
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LOG(ERROR) << "Fail to add service";
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return -1;
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}
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// Start the server.
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brpc::ServerOptions options;
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options.idle_timeout_sec = FLAGS_idle_timeout_s;
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options.max_concurrency = FLAGS_max_concurrency;
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if (server.Start(FLAGS_port, &options) != 0) {
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LOG(ERROR) << "Fail to start EchoServer";
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return -1;
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}
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// Wait until Ctrl-C is pressed, then Stop() and Join() the server.
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server.RunUntilAskedToQuit();
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return 0;
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}
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