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#ifndef GSR_LOG_H
#define GSR_LOG_H
typedef enum {
GSR_LOG_LEVEL_DEBUG,
GSR_LOG_LEVEL_INFO,
GSR_LOG_LEVEL_WARNING,
GSR_LOG_LEVEL_ERROR
} gsr_log_level;
/* The handler may be called from any thread. |message| has no prefix, level name or trailing newline */
typedef void (*gsr_log_handler)(gsr_log_level level, const char *message, void *userdata);
void gsr_log(gsr_log_level level, const char *fmt, ...) __attribute__((format(printf, 2, 3)));
/* Messages below |level| are discarded */
void gsr_log_set_level(gsr_log_level level);
/* A NULL |handler| restores the default handler which prints "gsr <level>: <message>" to stderr */
void gsr_log_set_handler(gsr_log_handler handler, void *userdata);
#endif /* GSR_LOG_H */
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