swaylock/include/log.h

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#ifndef _SWAYLOCK_LOG_H
#define _SWAYLOCK_LOG_H
#include <stdarg.h>
#include <string.h>
#include <errno.h>
enum log_importance {
LOG_SILENT = 0,
LOG_ERROR = 1,
LOG_INFO = 2,
LOG_DEBUG = 3,
LOG_IMPORTANCE_LAST,
};
void swaylock_log_init(enum log_importance verbosity);
#ifdef __GNUC__
#define _ATTRIB_PRINTF(start, end) __attribute__((format(printf, start, end)))
#else
#define _ATTRIB_PRINTF(start, end)
#endif
void _swaylock_log(enum log_importance verbosity, const char *format, ...)
_ATTRIB_PRINTF(2, 3);
const char *_swaylock_strip_path(const char *filepath);
#define swaylock_log(verb, fmt, ...) \
_swaylock_log(verb, "[%s:%d] " fmt, _swaylock_strip_path(__FILE__), \
__LINE__, ##__VA_ARGS__)
#define swaylock_log_errno(verb, fmt, ...) \
swaylock_log(verb, fmt ": %s", ##__VA_ARGS__, strerror(errno))
#endif