PageRenderTime 15ms CodeModel.GetById 8ms app.highlight 4ms RepoModel.GetById 1ms app.codeStats 0ms

/alsa-lib/include/error.h

https://github.com/kularny/android_device_motorola_omap4-common
C++ Header | 85 lines | 27 code | 13 blank | 45 comment | 3 complexity | c0f36e2b96a11f54990caa045b5d1be0 MD5 | raw file
 1/**
 2 * \file include/error.h
 3 * \brief Application interface library for the ALSA driver
 4 * \author Jaroslav Kysela <perex@perex.cz>
 5 * \author Abramo Bagnara <abramo@alsa-project.org>
 6 * \author Takashi Iwai <tiwai@suse.de>
 7 * \date 1998-2001
 8 *
 9 * Application interface library for the ALSA driver
10 */
11/*
12 *   This library is free software; you can redistribute it and/or modify
13 *   it under the terms of the GNU Lesser General Public License as
14 *   published by the Free Software Foundation; either version 2.1 of
15 *   the License, or (at your option) any later version.
16 *
17 *   This program is distributed in the hope that it will be useful,
18 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
19 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 *   GNU Lesser General Public License for more details.
21 *
22 *   You should have received a copy of the GNU Lesser General Public
23 *   License along with this library; if not, write to the Free Software
24 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
25 *
26 */
27
28#ifndef __ALSA_ERROR_H
29#define __ALSA_ERROR_H
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34
35/**
36 *  \defgroup Error Error handling
37 *  Error handling macros and functions.
38 *  \{
39 */
40
41#define SND_ERROR_BEGIN				500000			/**< Lower boundary of sound error codes. */
42#define SND_ERROR_INCOMPATIBLE_VERSION		(SND_ERROR_BEGIN+0)	/**< Kernel/library protocols are not compatible. */
43#define SND_ERROR_ALISP_NIL			(SND_ERROR_BEGIN+1)	/**< Lisp encountered an error during acall. */
44
45const char *snd_strerror(int errnum);
46
47/**
48 * \brief Error handler callback.
49 * \param file Source file name.
50 * \param line Line number.
51 * \param function Function name.
52 * \param err Value of \c errno, or 0 if not relevant.
53 * \param fmt \c printf(3) format.
54 * \param ... \c printf(3) arguments.
55 *
56 * A function of this type is called by the ALSA library when an error occurs.
57 * This function usually shows the message on the screen, and/or logs it.
58 */
59typedef void (*snd_lib_error_handler_t)(const char *file, int line, const char *function, int err, const char *fmt, ...) /* __attribute__ ((format (printf, 5, 6))) */;
60extern snd_lib_error_handler_t snd_lib_error;
61extern int snd_lib_error_set_handler(snd_lib_error_handler_t handler);
62
63#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 95)
64#define SNDERR(...) snd_lib_error(__FILE__, __LINE__, __FUNCTION__, 0, __VA_ARGS__) /**< Shows a sound error message. */
65#define SYSERR(...) snd_lib_error(__FILE__, __LINE__, __FUNCTION__, errno, __VA_ARGS__) /**< Shows a system error message (related to \c errno). */
66#else
67#define SNDERR(args...) snd_lib_error(__FILE__, __LINE__, __FUNCTION__, 0, ##args) /**< Shows a sound error message. */
68#define SYSERR(args...) snd_lib_error(__FILE__, __LINE__, __FUNCTION__, errno, ##args) /**< Shows a system error message (related to \c errno). */
69#endif
70
71/** \} */
72
73#ifdef __cplusplus
74}
75#endif
76
77/** Local error handler function type */
78typedef void (*snd_local_error_handler_t)(const char *file, int line,
79					  const char *func, int err,
80					  const char *fmt, va_list arg);
81
82snd_local_error_handler_t snd_lib_error_set_local(snd_local_error_handler_t func);
83
84#endif /* __ALSA_ERROR_H */
85