saimetadatalogger.h

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#ifndef __SAIMETADATALOGGER_H_
#define __SAIMETADATALOGGER_H_
 
typedef void (*sai_metadata_log_fn)(
        _In_ sai_log_level_t log_level,
        _In_ const char *file,
        _In_ int line,
        _In_ const char *function,
        _In_ const char *format,
        _In_ ...);
 
extern volatile sai_metadata_log_fn sai_metadata_log;
 
extern volatile sai_log_level_t sai_metadata_log_level;
 
#define SAI_META_LOG(loglevel,format,...)                                                       \
    if (loglevel >= sai_metadata_log_level)                                                     \
{                                                                                               \
    if (sai_metadata_log == NULL) /* or syslog? */                                              \
        fprintf(stderr, "%s:%d %s: " format "\n", __FILE__, __LINE__, __func__, ##__VA_ARGS__); \
    else                                                                                        \
        sai_metadata_log(loglevel, __FILE__, __LINE__, __func__, format, ##__VA_ARGS__);        \
}
 
/*
 * Helper macros.
 */
 
#define SAI_META_LOG_ENTER()                SAI_META_LOG(SAI_LOG_LEVEL_DEBUG,    ":> enter");
#define SAI_META_LOG_DEBUG(format,...)      SAI_META_LOG(SAI_LOG_LEVEL_DEBUG,    ":- " format, ##__VA_ARGS__)
#define SAI_META_LOG_INFO(format,...)       SAI_META_LOG(SAI_LOG_LEVEL_INFO,     ":- " format, ##__VA_ARGS__)
#define SAI_META_LOG_NOTICE(format,...)     SAI_META_LOG(SAI_LOG_LEVEL_NOTICE,   ":- " format, ##__VA_ARGS__)
#define SAI_META_LOG_WARN(format,...)       SAI_META_LOG(SAI_LOG_LEVEL_WARN,     ":- " format, ##__VA_ARGS__)
#define SAI_META_LOG_ERROR(format,...)      SAI_META_LOG(SAI_LOG_LEVEL_ERROR,    ":- " format, ##__VA_ARGS__)
#define SAI_META_LOG_CRITICAL(format,...)   SAI_META_LOG(SAI_LOG_LEVEL_CRITICAL, ":- " format, ##__VA_ARGS__)
#define SAI_META_LOG_EXIT()                 SAI_META_LOG(SAI_LOG_LEVEL_DEBUG,    ":< exit");
 
#endif