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: releng/11.0/sys/sys/kthread.h 284911 2015-06-28 12:52:28Z markm $ 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 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