1/*-
 2 * SPDX-License-Identifier: BSD-3-Clause
 3 *
 4 * Copyright (c) 1990, 1993
 5 *	The Regents of the University of California.  All rights reserved.
 6 * (c) UNIX System Laboratories, Inc.
 7 * All or some portions of this file are derived from material licensed
 8 * to the University of California by American Telephone and Telegraph
 9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	@(#)callout.h	8.2 (Berkeley) 1/21/94
37 */
38
39#ifndef _SYS__CALLOUT_H
40#define	_SYS__CALLOUT_H
41
42#include <sys/_types.h>
43#include <sys/queue.h>
44
45struct lock_object;
46
47LIST_HEAD(callout_list, callout);
48SLIST_HEAD(callout_slist, callout);
49TAILQ_HEAD(callout_tailq, callout);
50
51typedef void callout_func_t(void *);
52
53struct callout {
54	union {
55		LIST_ENTRY(callout) le;
56		SLIST_ENTRY(callout) sle;
57		TAILQ_ENTRY(callout) tqe;
58	} c_links;
59	__sbintime_t c_time;			/* ticks to the event */
60	__sbintime_t c_precision;		/* delta allowed wrt opt */
61	void	*c_arg;				/* function argument */
62	callout_func_t *c_func;			/* function to call */
63	struct lock_object *c_lock;		/* lock to handle */
64	short	c_flags;			/* User State */
65	short	c_iflags;			/* Internal State */
66	volatile int c_cpu;			/* CPU we're scheduled on */
67};
68
69#endif