90 lines
2.8 KiB
C
90 lines
2.8 KiB
C
/*-
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* Copyright (c) 2010 Isilon Systems, Inc.
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* Copyright (c) 2010 iX Systems, Inc.
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* Copyright (c) 2010 Panasas, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LINUX_TIMER_H_
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#define _LINUX_TIMER_H_
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#include <linux/types.h>
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/callout.h>
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struct timer_list {
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struct callout timer_callout;
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void (*function)(unsigned long);
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unsigned long data;
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unsigned long expires;
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};
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static inline void
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_timer_fn(void *context)
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{
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struct timer_list *timer;
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timer = context;
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timer->function(timer->data);
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}
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#define setup_timer(timer, func, dat) \
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do { \
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(timer)->function = (func); \
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(timer)->data = (dat); \
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callout_init(&(timer)->timer_callout, CALLOUT_MPSAFE); \
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} while (0)
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#define init_timer(timer) \
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do { \
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(timer)->function = NULL; \
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(timer)->data = 0; \
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callout_init(&(timer)->timer_callout, CALLOUT_MPSAFE); \
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} while (0)
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#define mod_timer(timer, exp) \
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do { \
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(timer)->expires = (exp); \
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callout_reset(&(timer)->timer_callout, (exp) - jiffies, \
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_timer_fn, (timer)); \
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} while (0)
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#define add_timer(timer) \
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callout_reset(&(timer)->timer_callout, \
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(timer)->expires - jiffies, _timer_fn, (timer))
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#define del_timer(timer) callout_stop(&(timer)->timer_callout)
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#define del_timer_sync(timer) callout_drain(&(timer)->timer_callout)
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#define timer_pending(timer) callout_pending(&(timer)->timer_callout)
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static inline unsigned long
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round_jiffies(unsigned long j)
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{
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return roundup(j, hz);
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}
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#endif /* _LINUX_TIMER_H_ */
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