X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=sched.h;h=021474a21a5303d405d91b985a0a70de1d198801;hp=452e749e10dd905592c37bb0bac78f81d403f563;hb=24758c5f;hpb=9609fd30e0d3db45ede3ab5c6bc3a77c15b6aef8;ds=sidebyside diff --git a/sched.h b/sched.h index 452e749e..021474a2 100644 --- a/sched.h +++ b/sched.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2006-2009 Andre Noll + * Copyright (C) 2006-2013 Andre Noll * * Licensed under the GPL v2. For licencing details see COPYING. */ @@ -20,15 +20,19 @@ struct sched { /** Initial value before any pre_select call. */ struct timeval default_timeout; /** The current timeout for the upcoming select call. */ - struct timeval timeout; + struct timeval select_timeout; /** fds that should be watched for readability. */ fd_set rfds; /** fds that should be watched for writability. */ fd_set wfds; /** Highest numbered file descriptor in any of the above fd sets. */ int max_fileno; - /** In non-NULL, use this function instead of para_select. */ + /** If non-NULL, use this function instead of para_select. */ int (*select_function)(int, fd_set *, fd_set *, struct timeval *); + /** Currently active pre_select functions. */ + struct list_head pre_select_list; + /** Currently active post_select functions. */ + struct list_head post_select_list; }; /** @@ -64,23 +68,26 @@ 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 task *t); +void register_task(struct sched *s, struct task *t); int schedule(struct sched *s); -char *get_task_list(void); -int kill_task(char *id); -void sched_shutdown(void); +char *get_task_list(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 *timeout, struct sched *s); +void sched_request_timeout(struct timeval *to, struct sched *s); void sched_request_timeout_ms(long unsigned ms, struct sched *s); -void sched_request_barrier(struct timeval *barrier, struct sched *s); -void sched_request_barrier_or_min_delay(struct timeval *barrier, struct sched *s); +int sched_request_barrier(struct timeval *barrier, struct sched *s); +int sched_request_barrier_or_min_delay(struct timeval *barrier, struct sched *s);