mirror of
https://github.com/Icinga/icinga2.git
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86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2013 Icinga Development Team (http://www.icinga.org/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#ifndef BUFFEREDSTREAM_H
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#define BUFFEREDSTREAM_H
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#include "base/i2-base.h"
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#include "base/stream.h"
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#include "base/fifo.h"
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namespace icinga
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{
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/**
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* A buffered stream.
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*
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* @ingroup base
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*/
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class I2_BASE_API BufferedStream : public Stream
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{
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public:
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DECLARE_PTR_TYPEDEFS(BufferedStream);
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BufferedStream(const Stream::Ptr& innerStream, size_t maxBufferSize = 64 * 1024 * 1024);
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~BufferedStream(void);
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virtual size_t Read(void *buffer, size_t count);
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virtual void Write(const void *buffer, size_t count);
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virtual void Close(void);
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virtual bool IsEof(void) const;
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void WaitReadable(size_t count);
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void WaitWritable(size_t count);
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void MakeNonBlocking(void);
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private:
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Stream::Ptr m_InnerStream;
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bool m_Stopped;
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bool m_Eof;
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FIFO::Ptr m_RecvQ;
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FIFO::Ptr m_SendQ;
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bool m_Blocking;
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size_t m_MaxBufferSize;
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boost::exception_ptr m_Exception;
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mutable boost::mutex m_Mutex;
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boost::condition_variable m_ReadCV;
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boost::condition_variable m_WriteCV;
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void ReadThreadProc(void);
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void WriteThreadProc(void);
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boost::thread m_ReadThread;
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boost::thread m_WriteThread;
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void InternalWaitWritable(size_t count, boost::mutex::scoped_lock& lock);
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void InternalWaitReadable(size_t count, boost::mutex::scoped_lock& lock);
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};
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}
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#endif /* BUFFEREDSTREAM_H */
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