X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=sched.h;h=907e5fb7462ca744e9049dd39d5ed6afa5a8a5d6;hp=49c1c085d9e09c4d847ce3002ab641c7a265689a;hb=4ca80f239ef2532dfe3af4013eb1d0cd38100185;hpb=1cefe6a503c74d609db4e99e689d46575a5e40fd diff --git a/sched.h b/sched.h index 49c1c085..907e5fb7 100644 --- a/sched.h +++ b/sched.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2006-2012 Andre Noll + * Copyright (C) 2006-2013 Andre Noll * * Licensed under the GPL v2. For licencing details see COPYING. */ @@ -60,6 +60,13 @@ struct task { * Evaluate and act upon the results of the previous select call. */ void (*post_select)(struct sched *s, struct task *t); + /** + * The newer variant of the post select hook of \a t. + * + * This hook must return the error code rather than store it in + * t->error. + */ + int (*new_post_select)(struct sched *s, struct task *t); /** Whether this task is in error state. */ int error; /** Position of the task in the pre_select list of the scheduler. */ @@ -68,20 +75,24 @@ struct task { struct list_head post_select_node; /** Descriptive text and current status of the task. */ char status[255]; + /** If less than zero, the task was notified by another task. */ + int notification; }; /** * This is set by the scheduler at the beginning of its main loop. It may be * used (read-only) from everywhere. As none of the functions called by the * scheduler are allowed to block, this value should be accurate enough so that - * there is no need to call gettimeofday() directly. + * there is no need to call clock_gettime() directly. */ extern struct timeval *now; void register_task(struct sched *s, struct task *t); int schedule(struct sched *s); char *get_task_list(struct sched *s); -void sched_shutdown(struct sched *s); +void task_notify(struct task *t, int err); +void task_notify_all(struct sched *s, int err); +int task_get_notification(struct task *t); void sched_min_delay(struct sched *s); void sched_request_timeout(struct timeval *to, struct sched *s); void sched_request_timeout_ms(long unsigned ms, struct sched *s);