68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/*
|
|
* Copyright (C) 2003-2010 The Music Player Daemon Project
|
|
* http://www.musicpd.org
|
|
*
|
|
* 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.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef MPD_MUSIC_BUFFER_H
|
|
#define MPD_MUSIC_BUFFER_H
|
|
|
|
/**
|
|
* An allocator for #music_chunk objects.
|
|
*/
|
|
struct music_buffer;
|
|
|
|
/**
|
|
* Creates a new #music_buffer object.
|
|
*
|
|
* @param num_chunks the number of #music_chunk reserved in this
|
|
* buffer
|
|
*/
|
|
struct music_buffer *
|
|
music_buffer_new(unsigned num_chunks);
|
|
|
|
/**
|
|
* Frees the #music_buffer object
|
|
*/
|
|
void
|
|
music_buffer_free(struct music_buffer *buffer);
|
|
|
|
/**
|
|
* Returns the total number of reserved chunks in this buffer. This
|
|
* is the same value which was passed to the constructor
|
|
* music_buffer_new().
|
|
*/
|
|
unsigned
|
|
music_buffer_size(const struct music_buffer *buffer);
|
|
|
|
/**
|
|
* Allocates a chunk from the buffer. When it is not used anymore,
|
|
* call music_buffer_return().
|
|
*
|
|
* @return an empty chunk or NULL if there are no chunks available
|
|
*/
|
|
struct music_chunk *
|
|
music_buffer_allocate(struct music_buffer *buffer);
|
|
|
|
/**
|
|
* Returns a chunk to the buffer. It can be reused by
|
|
* music_buffer_allocate() then.
|
|
*/
|
|
void
|
|
music_buffer_return(struct music_buffer *buffer, struct music_chunk *chunk);
|
|
|
|
#endif
|