1/*-
2 * Copyright (c) 1999 Peter Wemm <peter@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#ifndef _SYS_KTHREAD_H_
30#define	_SYS_KTHREAD_H_
31
32#include <sys/cdefs.h>
33
34/*
35 * A kernel process descriptor; used to start "internal" daemons.
36 *
37 * Note: global_procpp may be NULL for no global save area.
38 */
39struct kproc_desc {
40	char		*arg0;			/* arg 0 (for 'ps' listing) */
41	void		(*func)(void);	/* "main" for kernel process */
42	struct proc	**global_procpp;	/* ptr to proc ptr save area */
43};
44
45 /* A kernel thread descriptor; used to start "internal" daemons. */
46struct kthread_desc {
47	char		*arg0;			/* arg 0 (for 'ps' listing) */
48	void		(*func)(void);		/* "main" for kernel thread */
49	struct thread	**global_threadpp;	/* ptr to thread ptr save area */
50};
51
52int     kproc_create(void (*)(void *), void *, struct proc **,
53	    int flags, int pages, const char *, ...) __printflike(6, 7);
54void    kproc_exit(int) __dead2;
55int	kproc_resume(struct proc *);
56void	kproc_shutdown(void *, int);
57void	kproc_start(const void *);
58int	kproc_suspend(struct proc *, int);
59void	kproc_suspend_check(struct proc *);
60
61/* create a thread inthe given process. create the process if needed */
62int     kproc_kthread_add(void (*)(void *), void *,
63	    struct proc **,
64	    struct thread **,
65	    int flags, int pages,
66	    const char *procname, const char *, ...) __printflike(8, 9);
67
68int     kthread_add(void (*)(void *), void *,
69	    struct proc *, struct thread **,
70	    int flags, int pages, const char *, ...) __printflike(7, 8);
71void    kthread_exit(void) __dead2;
72int	kthread_resume(struct thread *);
73void	kthread_shutdown(void *, int);
74void	kthread_start(const void *);
75int	kthread_suspend(struct thread *, int);
76void	kthread_suspend_check(void);
77
78
79#endif /* !_SYS_KTHREAD_H_ */
80