mirror of https://github.com/Icinga/icinga2.git
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2015 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 FIFO_H
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#define FIFO_H
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#include "base/i2-base.hpp"
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#include "base/stream.hpp"
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namespace icinga
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{
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/**
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* A byte-based FIFO buffer.
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*
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* @ingroup base
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*/
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class I2_BASE_API FIFO : public Stream
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{
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public:
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DECLARE_PTR_TYPEDEFS(FIFO);
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static const size_t BlockSize = 16 * 1024;
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FIFO(void);
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~FIFO(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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size_t GetAvailableBytes(void) const;
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private:
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char *m_Buffer;
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size_t m_DataSize;
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size_t m_AllocSize;
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size_t m_Offset;
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void ResizeBuffer(size_t newSize, bool decrease);
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void Optimize(void);
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};
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}
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#endif /* FIFO_H */
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