55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
/*-
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* Copyright (c) 2000 Doug Rabson
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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, this list of conditions and the following 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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS__TASK_H_
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#define _SYS__TASK_H_
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#include <sys/queue.h>
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/*
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* Each task includes a function which is called from
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* taskqueue_run(). The first argument is taken from the 'ta_context'
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* field of struct task and the second argument is a count of how many
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* times the task was enqueued before the call to taskqueue_run().
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*
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* List of locks
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* (c) const after init
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* (q) taskqueue lock
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*/
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typedef void task_fn_t(void *context, int pending);
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struct task {
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STAILQ_ENTRY(task) ta_link; /* (q) link for queue */
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u_short ta_pending; /* (q) count times queued */
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u_short ta_priority; /* (c) Priority */
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task_fn_t *ta_func; /* (c) task handler */
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void *ta_context; /* (c) argument for handler */
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};
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#endif /* !_SYS__TASK_H_ */
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