br_private_timer.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:1k
源码类别:
Linux/Unix编程
开发平台:
Unix_Linux
- /*
- * Linux ethernet bridge
- *
- * Authors:
- * Lennert Buytenhek <buytenh@gnu.org>
- *
- * $Id: br_private_timer.h,v 1.1 2000/02/18 16:47:13 davem Exp $
- *
- * 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.
- */
- #ifndef _BR_PRIVATE_TIMER_H
- #define _BR_PRIVATE_TIMER_H
- struct br_timer
- {
- int running;
- unsigned long expires;
- };
- extern __inline__ void br_timer_clear(struct br_timer *t)
- {
- t->running = 0;
- }
- extern __inline__ unsigned long br_timer_get_residue(struct br_timer *t)
- {
- if (t->running)
- return jiffies - t->expires;
- return 0;
- }
- extern __inline__ void br_timer_set(struct br_timer *t, unsigned long x)
- {
- t->expires = x;
- t->running = 1;
- }
- extern __inline__ int br_timer_is_running(struct br_timer *t)
- {
- return t->running;
- }
- extern __inline__ int br_timer_has_expired(struct br_timer *t, unsigned long to)
- {
- return t->running && time_after_eq(jiffies, t->expires + to);
- }
- #endif