ALSA project - the C library reference
error.h
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1 
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25  *
26  */
27 
28 #if !defined(__ASOUNDLIB_H) && !defined(ALSA_LIBRARY_BUILD)
29 /* don't use ALSA_LIBRARY_BUILD define in sources outside alsa-lib */
30 #warning "use #include <alsa/asoundlib.h>, <alsa/error.h> should not be used directly"
31 #include <alsa/asoundlib.h>
32 #endif
33 
34 #ifndef __ALSA_ERROR_H
35 #define __ALSA_ERROR_H
36 
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40 
47 #define SND_ERROR_BEGIN 500000
48 #define SND_ERROR_INCOMPATIBLE_VERSION (SND_ERROR_BEGIN+0)
50 const char *snd_strerror(int errnum);
51 
64 typedef void (*snd_lib_error_handler_t)(const char *file, int line, const char *function, int err, const char *fmt, ...) /* __attribute__ ((format (printf, 5, 6))) */;
67 
68 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 95)
69 #define SNDERR(...) snd_lib_error(__FILE__, __LINE__, __func__, 0, __VA_ARGS__)
70 #define SYSERR(...) snd_lib_error(__FILE__, __LINE__, __func__, errno, __VA_ARGS__)
71 #else
72 #define SNDERR(args...) snd_lib_error(__FILE__, __LINE__, __func__, 0, ##args)
73 #define SYSERR(args...) snd_lib_error(__FILE__, __LINE__, __func__, errno, ##args)
74 #endif
75 
78 #ifdef __cplusplus
79 }
80 #endif
81 
83 typedef void (*snd_local_error_handler_t)(const char *file, int line,
84  const char *func, int err,
85  const char *fmt, va_list arg);
86 
88 
89 #endif /* __ALSA_ERROR_H */
90 
int snd_lib_error_set_handler(snd_lib_error_handler_t handler)
Sets the error handler.
Definition: error.c:129
void(* snd_lib_error_handler_t)(const char *file, int line, const char *function, int err, const char *fmt,...)
Error handler callback.
Definition: error.h:64
void(* snd_local_error_handler_t)(const char *file, int line, const char *func, int err, const char *fmt, va_list arg)
Definition: error.h:83
snd_local_error_handler_t snd_lib_error_set_local(snd_local_error_handler_t func)
Install local error handler.
Definition: error.c:78
snd_lib_error_handler_t snd_lib_error
Definition: error.c:120