vdr-plugin-softhdcuvid/ringbuffer.h

///
/// @file ringbuffer.h	@brief Ringbuffer module header file
///
/// Copyright (c) 2009, 2011 by Johns.	All Rights Reserved.
///
/// Contributor(s):
///
/// License: AGPLv3
///
/// This program is free software: you can redistribute it and/or modify
/// it under the terms of the GNU Affero General Public License as
/// published by the Free Software Foundation, either version 3 of the
/// License.
///
/// 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 Affero General Public License for more details.
///
/// $Id: 8a2b4c171f1024afb8b8a7a7add631b7ebe2d45e $
//////////////////////////////////////////////////////////////////////////////

/// @addtogroup Ringbuffer
/// @{

/// ring buffer typedef
typedef struct _ring_buffer_ RingBuffer;

/// reset ring buffer pointers
extern void RingBufferReset(RingBuffer *);

/// create new ring buffer
extern RingBuffer *RingBufferNew(size_t);

/// free ring buffer
extern void RingBufferDel(RingBuffer *);

/// write into ring buffer
extern size_t RingBufferWrite(RingBuffer *, const void *, size_t);

/// get write pointer of ring buffer
extern size_t RingBufferGetWritePointer(RingBuffer *, void **);

/// advance write pointer of ring buffer
extern size_t RingBufferWriteAdvance(RingBuffer *, size_t);

/// read from ring buffer
extern size_t RingBufferRead(RingBuffer *, void *, size_t);

/// get read pointer of ring buffer
extern size_t RingBufferGetReadPointer(RingBuffer *, const void **);

/// advance read pointer of ring buffer
extern size_t RingBufferReadAdvance(RingBuffer *, size_t);

/// free bytes ring buffer
extern size_t RingBufferFreeBytes(RingBuffer *);

/// used bytes ring buffer
extern size_t RingBufferUsedBytes(RingBuffer *);

/// @}