| | 1 | /* $NetBSD: schedule.h,v 1.4.6.1 2007/03/21 14:29:48 vanhu Exp $ */ |
| | 2 | |
| | 3 | /* Id: schedule.h,v 1.5 2006/05/03 21:53:42 vanhu Exp */ |
| | 4 | |
| | 5 | /* |
| | 6 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
| | 7 | * All rights reserved. |
| | 8 | * |
| | 9 | * Redistribution and use in source and binary forms, with or without |
| | 10 | * modification, are permitted provided that the following conditions |
| | 11 | * are met: |
| | 12 | * 1. Redistributions of source code must retain the above copyright |
| | 13 | * notice, this list of conditions and the following disclaimer. |
| | 14 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 15 | * notice, this list of conditions and the following disclaimer in the |
| | 16 | * documentation and/or other materials provided with the distribution. |
| | 17 | * 3. Neither the name of the project nor the names of its contributors |
| | 18 | * may be used to endorse or promote products derived from this software |
| | 19 | * without specific prior written permission. |
| | 20 | * |
| | 21 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
| | 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
| | 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 31 | * SUCH DAMAGE. |
| | 32 | */ |
| | 33 | |
| | 34 | #ifndef _SCHEDULE_H |
| | 35 | #define _SCHEDULE_H |
| | 36 | |
| | 37 | #include <sys/queue.h> |
| | 38 | #include <dispatch/dispatch.h> |
| | 39 | |
| | 40 | typedef int schedule_ref; |
| | 41 | |
| | 42 | /* scheduling table */ |
| | 43 | /* the head is the nearest event. */ |
| | 44 | struct sched { |
| | 45 | schedule_ref ref; |
| | 46 | time_t xtime; /* event time which is as time(3). */ |
| | 47 | void (*func) (void *); /* call this function when timeout. */ |
| | 48 | void *param; /* pointer to parameter */ |
| | 49 | int dead; /* dead or alive */ |
| | 50 | TAILQ_ENTRY(sched) chain; |
| | 51 | }; |
| | 52 | |
| | 53 | /* cancel schedule */ |
| | 54 | #define SCHED_KILL(s) \ |
| | 55 | do { \ |
| | 56 | if(s != 0){ \ |
| | 57 | sched_kill(s); \ |
| | 58 | s = 0; \ |
| | 59 | } \ |
| | 60 | } while(0) |
| | 61 | |
| | 62 | void timer_handler (struct sched *); |
| | 63 | schedule_ref sched_new (time_t, void (*func) (void *), void *); |
| | 64 | int sched_is_dead(schedule_ref ref); |
| | 65 | int sched_get_time(schedule_ref ref, time_t *time); |
| | 66 | void sched_kill (schedule_ref); |
| | 67 | void sched_killall(void); |
| | 68 | void sched_init (void); |
| | 69 | void sched_scrub_param (void *); |
| | 70 | time_t current_time (void); |
| | 71 | |
| | 72 | #endif /* _SCHEDULE_H */ |
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