0,0 → 1,60 |
/* |
* Copyright (C) 2001-2004 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
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#ifndef __TIMEOUT_H__ |
#define __TIMEOUT_H__ |
|
#include <arch/types.h> |
#include <typedefs.h> |
#include <synch/spinlock.h> |
#include <list.h> |
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#define us2ticks(us) ((__u64)(((__u32) (us)/(1000000/HZ)))) |
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typedef void (* timeout_handler_t)(void *arg); |
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struct timeout { |
spinlock_t lock; |
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link_t link; /**< Link to the list of active timeouts on THE->cpu */ |
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__u64 ticks; /**< Timeout will be activated in this amount of clock() ticks. */ |
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timeout_handler_t handler; /**< Function that will be called on timeout activation. */ |
void *arg; /**< Argument to be passed to handler() function. */ |
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cpu_t *cpu; /**< On which processor is this timeout registered. */ |
}; |
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extern void timeout_init(void); |
extern void timeout_initialize(timeout_t *t); |
extern void timeout_reinitialize(timeout_t *t); |
extern void timeout_register(timeout_t *t, __u64 usec, timeout_handler_t f, void *arg); |
extern bool timeout_unregister(timeout_t *t); |
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#endif |