_callout.h revision 331722 
1/*-
2 * Copyright (c) 1990, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 4. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 *	@(#)callout.h	8.2 (Berkeley) 1/21/94
35 * $FreeBSD: stable/11/sys/sys/_callout.h 331722 2018-03-29 02:50:57Z eadler $
36 */
37
38#ifndef _SYS__CALLOUT_H
39#define	_SYS__CALLOUT_H
40
41#include <sys/queue.h>
42
43struct lock_object;
44
45LIST_HEAD(callout_list, callout);
46SLIST_HEAD(callout_slist, callout);
47TAILQ_HEAD(callout_tailq, callout);
48
49struct callout {
50	union {
51		LIST_ENTRY(callout) le;
52		SLIST_ENTRY(callout) sle;
53		TAILQ_ENTRY(callout) tqe;
54	} c_links;
55	sbintime_t c_time;			/* ticks to the event */
56	sbintime_t c_precision;			/* delta allowed wrt opt */
57	void	*c_arg;				/* function argument */
58	void	(*c_func)(void *);		/* function to call */
59	struct lock_object *c_lock;		/* lock to handle */
60	short	c_flags;			/* User State */
61	short	c_iflags;			/* Internal State */
62	volatile int c_cpu;			/* CPU we're scheduled on */
63};
64
65#endif
66