xbmc/utils/RingBuffer.h

   1 /*
   2  *  Copyright (C) 2010-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #pragma once
  10
  11 #include "threads/CriticalSection.h"
  12
  13 class CRingBuffer
  14 {
  15   CCriticalSection m_critSection;
  16   char *m_buffer;
  17   unsigned int m_size;
  18   unsigned int m_readPtr;
  19   unsigned int m_writePtr;
  20   unsigned int m_fillCount;
  21 public:
  22   CRingBuffer();
  23   ~CRingBuffer();
  24   bool Create(unsigned int size);
  25   void Destroy();
  26   void Clear();
  27   bool ReadData(char *buf, unsigned int size);
  28   bool ReadData(CRingBuffer &rBuf, unsigned int size);
  29   bool WriteData(const char *buf, unsigned int size);
  30   bool WriteData(CRingBuffer &rBuf, unsigned int size);
  31   bool SkipBytes(int skipSize);
  32   bool Append(CRingBuffer &rBuf);
  33   bool Copy(CRingBuffer &rBuf);
  34   char *getBuffer();
  35   unsigned int getSize();
  36   unsigned int getReadPtr() const;
  37   unsigned int getWritePtr();
  38   unsigned int getMaxReadSize();
  39   unsigned int getMaxWriteSize();
  40 };