136 lines
3.7 KiB
C++
136 lines
3.7 KiB
C++
/*
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* 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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*/
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#ifndef _THRIFT_TEST_SERVERTHREAD_H_
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#define _THRIFT_TEST_SERVERTHREAD_H_ 1
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#include <thrift/TProcessor.h>
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#include <thrift/protocol/TProtocol.h>
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#include <thrift/server/TServer.h>
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#include <thrift/transport/TTransport.h>
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#include "EventLog.h"
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namespace apache {
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namespace thrift {
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namespace test {
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/**
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* A helper class to tell ServerThread how to create the server
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*/
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class ServerState {
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public:
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virtual ~ServerState() = default;
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/**
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* Create a server to listen on the specified port.
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*
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* If the server returned fails to bind to the specified port when serve() is
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* called on it, createServer() may be called again on a different port.
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*/
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virtual std::shared_ptr<server::TServer> createServer(uint16_t port) = 0;
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/**
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* Get the TServerEventHandler to set on the server.
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*
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* This is only called after the server successfully binds and is about to
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* start serving traffic. It is invoked from the server thread, rather than
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* the main thread.
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*/
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virtual std::shared_ptr<server::TServerEventHandler> getServerEventHandler() {
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return std::shared_ptr<server::TServerEventHandler>();
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}
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/**
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* This method is called in the server thread after server binding succeeds.
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*
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* Subclasses may override this method if they wish to record the final
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* port that was used for the server.
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*/
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virtual void bindSuccessful(uint16_t /*port*/) {}
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};
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/**
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* ServerThread starts a thrift server running in a separate thread.
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*/
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class ServerThread {
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public:
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ServerThread(const std::shared_ptr<ServerState>& state, bool autoStart)
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: port_(0),
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running_(false),
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serving_(false),
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error_(false),
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serverState_(state) {
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if (autoStart) {
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start();
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}
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}
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void start();
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void stop();
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uint16_t getPort() const { return port_; }
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~ServerThread() {
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if (running_) {
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try {
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stop();
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} catch (...) {
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GlobalOutput.printf("error shutting down server");
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}
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}
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}
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protected:
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// Annoying. thrift forces us to use shared_ptr, so we have to use
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// a helper class that we can allocate on the heap and give to thrift.
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// It would be simpler if we could just make Runnable and TServerEventHandler
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// private base classes of ServerThread.
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class Helper : public concurrency::Runnable, public server::TServerEventHandler {
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public:
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Helper(ServerThread* serverThread) : serverThread_(serverThread) {}
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void run() override { serverThread_->run(); }
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void preServe() override { serverThread_->preServe(); }
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private:
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ServerThread* serverThread_;
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};
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void run();
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void preServe();
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std::shared_ptr<Helper> helper_;
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uint16_t port_;
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bool running_;
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bool serving_;
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bool error_;
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concurrency::Monitor serverMonitor_;
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std::shared_ptr<ServerState> serverState_;
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std::shared_ptr<server::TServer> server_;
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std::shared_ptr<concurrency::Thread> thread_;
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};
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}
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}
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} // apache::thrift::test
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#endif // _THRIFT_TEST_SERVERTHREAD_H_
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