1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 1999 Peter Wemm <peter@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
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 const 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 const 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 in the 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#endif /* !_SYS_KTHREAD_H_ */