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/***************************************************************************
ringbuffer.h - description
-------------------
begin : Sun March 21 2004
copyright : (C) 2004 by Martin Witte
email : witte@kawo1.rwth-aachen.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef _KRADIO_RING_BUFFER_H
#define _KRADIO_RING_BUFFER_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/types.h>
class RingBuffer
{
public:
RingBuffer(size_t size);
~RingBuffer();
bool resize(size_t new_size);
size_t addData (const char *src, size_t size);
size_t takeData(char *dst, size_t size);
char *getFreeSpace(size_t &size);
size_t removeFreeSpace(size_t size);
char *getData(size_t &size);
size_t removeData(size_t size);
size_t getSize() const { return m_Size; }
size_t getFillSize() const { return m_FillSize; }
size_t getFreeSize() const { return m_Size - m_FillSize; }
void clear();
protected:
char *m_Buffer;
size_t m_Start;
size_t m_Size,
m_FillSize;
};
#endif
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