typedef void (*io_cb_t)(event_loop_t *loop, void *data, int flags);
typedef void (*timeout_cb_t)(event_loop_t *loop, void *data);
typedef void (*signal_cb_t)(event_loop_t *loop, void *data);
typedef void (*io_cb_t)(event_loop_t *loop, void *data, int flags);
typedef void (*timeout_cb_t)(event_loop_t *loop, void *data);
typedef void (*signal_cb_t)(event_loop_t *loop, void *data);
extern void signal_trigger(event_loop_t *loop, signal_t *sig);
extern void signal_del(event_loop_t *loop, signal_t *sig);
extern void signal_trigger(event_loop_t *loop, signal_t *sig);
extern void signal_del(event_loop_t *loop, signal_t *sig);
extern void event_loop_init(event_loop_t *loop);
extern void event_loop_exit(event_loop_t *loop);
extern bool event_loop_run(event_loop_t *loop, pthread_mutex_t *mutex);
extern void event_loop_init(event_loop_t *loop);
extern void event_loop_exit(event_loop_t *loop);
extern bool event_loop_run(event_loop_t *loop, pthread_mutex_t *mutex);