78 lines
1.7 KiB
C++
Executable File
78 lines
1.7 KiB
C++
Executable File
/*
|
|
Millennium Sound System
|
|
©1999, Subband Software
|
|
|
|
Description: GP Ring Buffer
|
|
Released: 9/15/99
|
|
|
|
Version history:
|
|
|
|
Date Who Changes
|
|
--------+---------+------------------------------------------------------
|
|
09-15-99 DAB Initial release.
|
|
|
|
DAB = Dmitry Boldyrev
|
|
*/
|
|
|
|
/*
|
|
* 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.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef __RINGBUFFER_H__
|
|
#define __RINGBUFFER_H__
|
|
|
|
class RingBuffer
|
|
{
|
|
public:
|
|
RingBuffer();
|
|
~RingBuffer();
|
|
|
|
int Init(long inSize);
|
|
|
|
long WriteData(char *data, long len);
|
|
long ReadData(char *data, long len);
|
|
|
|
long FreeSpace(bool inTrueSpace = true);
|
|
long UsedSpace(bool inTrueSpace = true);
|
|
long BufSize()
|
|
{
|
|
return mBufSize;
|
|
}
|
|
|
|
void Empty();
|
|
|
|
void SaveRead();
|
|
void RestoreRead();
|
|
|
|
bool IsReadMode()
|
|
{
|
|
return mSaveFreeSpace == -1;
|
|
}
|
|
|
|
protected:
|
|
|
|
char* mBuffer;
|
|
long mBufSize;
|
|
long mBufWxIdx;
|
|
|
|
long mBufRdIdx;
|
|
long mFreeSpace;
|
|
|
|
long mSaveFreeSpace;
|
|
long mSaveReadPos;
|
|
};
|
|
|
|
#endif //__RINGBUFFER_H__
|