72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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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 <butil/logging.h>
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#include <brpc/server.h>
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#include <brpc/nshead_service.h>
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DEFINE_int32(port, 8010, "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(max_concurrency, 0, "Limit of request processing in parallel");
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// Adapt your own nshead-based protocol to use brpc
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class MyNsheadProtocol : public brpc::NsheadService {
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public:
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void ProcessNsheadRequest(const brpc::Server&,
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brpc::Controller* cntl,
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const brpc::NsheadMessage& request,
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brpc::NsheadMessage* response,
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brpc::NsheadClosure* done) {
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// This object helps you to call done->Run() in RAII style. If you need
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// to process the request asynchronously, pass done_guard.release().
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brpc::ClosureGuard done_guard(done);
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if (cntl->Failed()) {
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// NOTE: You can send back a response containing error information
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// back to client instead of closing the connection.
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cntl->CloseConnection("Close connection due to previous error");
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return;
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}
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*response = request; // Just echo the request to client
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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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GFLAGS_NS::ParseCommandLineFlags(&argc, &argv, true);
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brpc::Server server;
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brpc::ServerOptions options;
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options.nshead_service = new MyNsheadProtocol;
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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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// Start the server.
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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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