mirror of https://gitee.com/bigwinds/arangodb
115 lines
3.0 KiB
C++
115 lines
3.0 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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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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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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/// @author Achim Brandt
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_SCHEDULER_SOCKET_TASK2_H
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#define ARANGOD_SCHEDULER_SOCKET_TASK2_H 1
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#include "Scheduler/Task.h"
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#include <boost/asio/ssl.hpp>
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#include "Basics/asio-helper.h"
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#include "Basics/StringBuffer.h"
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#include "Scheduler/Socket.h"
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#include "Statistics/StatisticsAgent.h"
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namespace arangodb {
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namespace rest {
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class SocketTask : virtual public Task, public ConnectionStatisticsAgent {
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explicit SocketTask(SocketTask const&) = delete;
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SocketTask& operator=(SocketTask const&) = delete;
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private:
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static size_t const READ_BLOCK_SIZE = 10000;
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public:
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SocketTask(EventLoop, std::unique_ptr<Socket>, ConnectionInfo&&,
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double keepAliveTimeout);
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virtual ~SocketTask();
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public:
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void start();
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protected:
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virtual bool processRead() = 0;
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protected:
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void addWriteBuffer(std::unique_ptr<basics::StringBuffer> buffer) {
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addWriteBuffer(std::move(buffer), (RequestStatisticsAgent*)nullptr);
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}
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void addWriteBuffer(std::unique_ptr<basics::StringBuffer>,
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RequestStatisticsAgent*);
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void addWriteBuffer(basics::StringBuffer*, TRI_request_statistics_t*);
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void completedWriteBuffer();
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void closeStream();
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protected:
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ConnectionInfo _connectionInfo;
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basics::StringBuffer _readBuffer;
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basics::StringBuffer* _writeBuffer = nullptr;
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TRI_request_statistics_t* _writeBufferStatistics = nullptr;
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std::deque<basics::StringBuffer*> _writeBuffers;
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std::deque<TRI_request_statistics_t*> _writeBuffersStats;
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std::unique_ptr<Socket> _peer;
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bool _useKeepAliveTimeout;
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boost::posix_time::milliseconds _keepAliveTimeout;
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boost::asio::deadline_timer _keepAliveTimer;
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void resetKeepAlive(boost::system::error_code& ec);
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void cancelKeepAlive(boost::system::error_code& ec);
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bool cancelKeepAlive() {
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boost::system::error_code ec;
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cancelKeepAlive(ec);
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if (ec) {
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return false;
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}
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return true;
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}
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protected:
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bool _closeRequested = false;
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private:
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bool reserveMemory();
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bool trySyncRead();
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void asyncReadSome();
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void closeReceiveStream();
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private:
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bool _closedSend = false;
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bool _closedReceive = false;
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};
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}
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}
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#endif
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