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* Copyright (c) 2001-2004 Jakub Jermar
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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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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - 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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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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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#ifndef KERN_TIMEOUT_H_
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#define KERN_TIMEOUT_H_
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#include <arch/types.h>
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typedef void (* timeout_handler_t)(void *arg);
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SPINLOCK_DECLARE(lock);
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/** Link to the list of active timeouts on THE->cpu */
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/** Timeout will be activated in this amount of clock() ticks. */
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/** Function that will be called on timeout activation. */
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timeout_handler_t handler;
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/** Argument to be passed to handler() function. */
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/** On which processor is this timeout registered. */
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#define us2ticks(us) ((uint64_t) (((uint32_t) (us) / (1000000 / HZ))))
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extern void timeout_init(void);
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extern void timeout_initialize(timeout_t *t);
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extern void timeout_reinitialize(timeout_t *t);
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extern void timeout_register(timeout_t *t, uint64_t usec, timeout_handler_t f,
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extern bool timeout_unregister(timeout_t *t);