vdr-plugin-softhddevice/ringbuffer.h

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2011-12-07 15:05:38 +01:00
///
/// @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.
///
/// $Id$
//////////////////////////////////////////////////////////////////////////////
/// @addtogroup Ringbuffer
/// @{
///< ring buffer typedef
typedef struct _ring_buffer_ 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 *);
/// @}