error.h

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/*
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as
 *   published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this library; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#if !defined(__ASOUNDLIB_H) && !defined(ALSA_LIBRARY_BUILD)
/* don't use ALSA_LIBRARY_BUILD define in sources outside alsa-lib */
#warning "use #include <alsa/asoundlib.h>, <alsa/error.h> should not be used directly"
#include <alsa/asoundlib.h>
#endif

#ifndef __ALSA_ERROR_H
#define __ALSA_ERROR_H 
#ifdef __cplusplus
extern "C" {
#endif

#define SND_ERROR_BEGIN             500000          
#define SND_ERROR_INCOMPATIBLE_VERSION      (SND_ERROR_BEGIN+0) 
const char *snd_strerror(int errnum);

#define SND_LOG_ERROR       1   
#define SND_LOG_WARN        2   
#define SND_LOG_INFO        3   
#define SND_LOG_DEBUG       4   
#define SND_LOG_TRACE       5   
#define SND_LOG_LAST        SND_LOG_TRACE 
#define SND_ILOG_CORE           1   
#define SND_ILOG_CONFIG     2   
#define SND_ILOG_CONTROL    3   
#define SND_ILOG_HWDEP      4   
#define SND_ILOG_TIMER      5   
#define SND_ILOG_RAWMIDI    6   
#define SND_ILOG_PCM        7   
#define SND_ILOG_MIXER      8   
#define SND_ILOG_SEQUENCER  9   
#define SND_ILOG_UCM        10  
#define SND_ILOG_TOPOLOGY   11  
#define SND_ILOG_ASERVER    12  
#define SND_ILOG_LAST       SND_ILOG_ASERVER 
typedef void (*snd_lib_log_handler_t)(int prio, int interface, const char *file, int line, const char *function, int errcode, const char *fmt, va_list arg);
extern snd_lib_log_handler_t snd_lib_vlog;
int snd_lib_log_filter(int prio, int interface, const char *configstr);
void snd_lib_log(int prio, int interface, const char *file, int line, const char *function, int errcode, const char *fmt, ...) /* __attribute__ ((format (printf, 7, 8))) */;
void snd_lib_check(int interface, const char *file, int line, const char *function, int errcode, const char *fmt, ...);
snd_lib_log_handler_t snd_lib_log_set_handler(snd_lib_log_handler_t handler);
snd_lib_log_handler_t snd_lib_log_set_local(snd_lib_log_handler_t handler);
const char *snd_lib_log_priority(int prio);
const char *snd_lib_log_interface(int interface);

#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 95)
#define snd_error(interface, ...) snd_lib_log(SND_LOG_ERROR, SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, __VA_ARGS__) 
#define snd_errornum(interface, ...) snd_lib_log(SND_LOG_ERROR, SND_ILOG_##interface, __FILE__, __LINE__, __func__, errno, __VA_ARGS__) 
#define snd_warn(interface, ...) snd_lib_log(SND_LOG_WARN, SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, __VA_ARGS__) 
#define snd_info(interface, ...) snd_lib_log(SND_LOG_INFO, SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, __VA_ARGS__) 
#define snd_debug(interface, ...) snd_lib_log(SND_LOG_DEBUG, SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, __VA_ARGS__) 
#define snd_trace(interface, ...) snd_lib_log(SND_LOG_TRACE, SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, __VA_ARGS__) 
#define snd_check(interface, ...) snd_lib_check(SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, __VA_ARGS__) 
#define snd_checknum(interface, ...) snd_lib_check(SND_ILOG_##interface, __FILE__, __LINE__, __func__, errno, __VA_ARGS__) 
#else
#define snd_error(interface, args...) snd_lib_log(SND_LOG_ERROR, SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, ##args) 
#define snd_errornum(interface, args...) snd_lib_log(SND_LOG_ERROR, SND_ILOG_##interface, __FILE__, __LINE__, __func__, errno, ##args) 
#define snd_warn(interface, args...) snd_lib_log(SND_LOG_WARN, SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, ##args) 
#define snd_info(interface, args...) snd_lib_log(SND_LOG_INFO, SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, ##args) 
#define snd_debug(interface, args...) snd_lib_log(SND_LOG_DEBUG, SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, ##args) 
#define snd_trace(interface, args...) snd_lib_log(SND_LOG_TRACE, SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, ##args) 
#define snd_check(interface, args...) snd_lib_check(SND_ILOG_##interface, __FILE__, __LINE__, __func__, 0, ##args) 
#define snd_checknum(interface, args...) snd_lib_check(SND_ILOG_##interface, __FILE__, __LINE__, __func__, errno, ##args) 
#endif

typedef void (*snd_lib_error_handler_t)(const char *file, int line, const char *function, int errcode, const char *fmt, ...) /* __attribute__ ((format (printf, 5, 6))) */;
extern snd_lib_error_handler_t snd_lib_error;
int snd_lib_error_set_handler(snd_lib_error_handler_t handler);

#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 95)
#define SNDERR(...) snd_lib_log(SND_LOG_ERROR, 0, __FILE__, __LINE__, __func__, 0, __VA_ARGS__) 
#define SYSERR(...) snd_lib_log(SND_LOG_ERROR, 0, __FILE__, __LINE__, __func__, errno, __VA_ARGS__) 
#else
#define SNDERR(args...) snd_lib_log(SND_LOG_ERROR, 0, __FILE__, __LINE__, __func__, 0, ##args) 
#define SYSERR(args...) snd_lib_log(SND_LOG_ERROR, 0, __FILE__, __LINE__, __func__, errno, ##args) 
#endif

typedef void (*snd_local_error_handler_t)(const char *file, int line,
                      const char *func, int errcode,
                      const char *fmt, va_list arg);
snd_local_error_handler_t snd_lib_error_set_local(snd_local_error_handler_t func);

#ifdef __cplusplus
}
#endif



#endif /* __ALSA_ERROR_H */