1/* $NetBSD: kthread.h,v 1.13 2015/04/21 11:10:29 pooka Exp $ */
2
3/*-
4 * Copyright (c) 1998, 2007, 2009 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center, and by Andrew Doran.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#ifndef _SYS_KTHREAD_H_
34#define _SYS_KTHREAD_H_
35
36#if !defined(_KERNEL)
37#error "not supposed to be exposed to userland"
38#endif
39
40/*
41 * Kernel thread handling.
42 */
43
44#include <sys/proc.h>
45
46#define KTHREAD_IDLE 0x01 /* Do not run on creation */
47#define KTHREAD_MPSAFE 0x02 /* Do not acquire kernel_lock */
48#define KTHREAD_INTR 0x04 /* Software interrupt handler */
49#define KTHREAD_TS 0x08 /* Time-sharing priority range */
50#define KTHREAD_MUSTJOIN 0x10 /* Must join on exit */
51
52void kthread_sysinit(void);
53
54int kthread_create(pri_t, int, struct cpu_info *,
55 void (*)(void *), void *, lwp_t **, const char *, ...) __printflike(7, 8);
56void kthread_exit(int) __dead;
57int kthread_join(lwp_t *);
58
59#endif /* _SYS_KTHREAD_H_ */
60