tsiry-sandratraina.com
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Felix Arends
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21
22#ifndef __VUPRINTF_H__
23#define __VUPRINTF_H__
24
25#include <stdarg.h>
26
27/* callback function is called for every output character (byte) in the
28 * output with userp
29 *
30 * it must return > 0 to continue (increments counter)
31 * it may return 0 to stop (increments counter)
32 * it may return < 0 to stop (does not increment counter)
33 * a zero in the format string stops (does not increment counter)
34 *
35 * caller is reponsible for stopping formatting in order to keep the return
36 * value from overflowing (assuming they have a reason to care)
37 */
38typedef int (* vuprintf_push_cb)(void *userp, int c);
39
40/*
41 * returns the number of times push() was called and returned >= 0
42 */
43int vuprintf(vuprintf_push_cb push, void *userp, const char *fmt, va_list ap);
44
45#endif /* __VUPRINTF_H__ */