void task_notify(struct task *t, int err);
void task_notify_all(struct sched *s, int err);
int task_get_notification(const struct task *t);
+int task_status(const struct task *t);
int task_reap(struct task **tptr);
void sched_min_delay(struct sched *s);
void sched_request_timeout(struct timeval *to, struct sched *s);