| /* |
| * (C) 2008, 2009 by Holger Hans Peter Freyther <zecke@selfish.org> |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| #ifndef TIMER_H |
| #define TIMER_H |
| |
| #include <sys/time.h> |
| |
| #include "linuxlist.h" |
| |
| /** |
| * Timer management: |
| * - Create a struct timer_list |
| * - Fill out timeout and use add_timer or |
| * use schedule_timer to schedule a timer in |
| * x seconds and microseconds from now... |
| * - Use del_timer to remove the timer |
| * |
| * Internally: |
| * - We hook into select.c to give a timeval of the |
| * nearest timer. On already passed timers we give |
| * it a 0 to immediately fire after the select |
| * - update_timers will call the callbacks and remove |
| * the timers. |
| * |
| */ |
| struct timer_list { |
| struct llist_head entry; |
| struct timeval timeout; |
| int active : 1; |
| int handled : 1; |
| int in_list : 1; |
| |
| void (*cb)(void*); |
| void *data; |
| }; |
| |
| /** |
| * timer management |
| */ |
| void add_timer(struct timer_list *timer); |
| void schedule_timer(struct timer_list *timer, int seconds, int microseconds); |
| void del_timer(struct timer_list *timer); |
| int timer_pending(struct timer_list *timer); |
| |
| |
| /** |
| * internal timer list management |
| */ |
| struct timeval *nearest_timer(); |
| void prepare_timers(); |
| void update_timers(); |
| |
| #endif |