mirror of
https://github.com/ivabus/pantry
synced 2024-11-23 08:55:07 +03:00
66 lines
2 KiB
C++
66 lines
2 KiB
C++
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/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <folly/portability/GFlags.h>
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#include <folly/init/Init.h>
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#include <wangle/bootstrap/ServerBootstrap.h>
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#include <wangle/channel/AsyncSocketHandler.h>
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#include <wangle/codec/LineBasedFrameDecoder.h>
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#include <wangle/codec/StringCodec.h>
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using namespace folly;
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using namespace wangle;
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DEFINE_int32(port, 8080, "echo server port");
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typedef Pipeline<IOBufQueue&, std::string> EchoPipeline;
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// the main logic of our echo server; receives a string and writes it straight
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// back
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class EchoHandler : public HandlerAdapter<std::string> {
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public:
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void read(Context* ctx, std::string msg) override {
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std::cout << "handling " << msg << std::endl;
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write(ctx, msg + "\r\n");
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}
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};
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// where we define the chain of handlers for each messeage received
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class EchoPipelineFactory : public PipelineFactory<EchoPipeline> {
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public:
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EchoPipeline::Ptr newPipeline(std::shared_ptr<AsyncTransport> sock) override {
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auto pipeline = EchoPipeline::create();
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pipeline->addBack(AsyncSocketHandler(sock));
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pipeline->addBack(LineBasedFrameDecoder(8192));
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pipeline->addBack(StringCodec());
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pipeline->addBack(EchoHandler());
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pipeline->finalize();
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return pipeline;
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}
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};
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int main(int argc, char** argv) {
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folly::Init init(&argc, &argv);
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ServerBootstrap<EchoPipeline> server;
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server.childPipeline(std::make_shared<EchoPipelineFactory>());
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server.bind(FLAGS_port);
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server.waitForStop();
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return 0;
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}
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