1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 * $FreeBSD$ 29 */ 30 31 #ifndef _SYS_KTHREAD_H_ 32 #define _SYS_KTHREAD_H_ 33 34 #include <sys/cdefs.h> 35 36 /* 37 * A kernel process descriptor; used to start "internal" daemons. 38 * 39 * Note: global_procpp may be NULL for no global save area. 40 */ 41 struct kproc_desc { 42 const char *arg0; /* arg 0 (for 'ps' listing) */ 43 void (*func)(void); /* "main" for kernel process */ 44 struct proc **global_procpp; /* ptr to proc ptr save area */ 45 }; 46 47 /* A kernel thread descriptor; used to start "internal" daemons. */ 48 struct kthread_desc { 49 const char *arg0; /* arg 0 (for 'ps' listing) */ 50 void (*func)(void); /* "main" for kernel thread */ 51 struct thread **global_threadpp; /* ptr to thread ptr save area */ 52 }; 53 54 int kproc_create(void (*)(void *), void *, struct proc **, 55 int flags, int pages, const char *, ...) __printflike(6, 7); 56 void kproc_exit(int) __dead2; 57 int kproc_resume(struct proc *); 58 void kproc_shutdown(void *, int); 59 void kproc_start(const void *); 60 int kproc_suspend(struct proc *, int); 61 void kproc_suspend_check(struct proc *); 62 63 /* create a thread in the given process. create the process if needed */ 64 int kproc_kthread_add(void (*)(void *), void *, 65 struct proc **, 66 struct thread **, 67 int flags, int pages, 68 const char *procname, const char *, ...) __printflike(8, 9); 69 70 int kthread_add(void (*)(void *), void *, 71 struct proc *, struct thread **, 72 int flags, int pages, const char *, ...) __printflike(7, 8); 73 void kthread_exit(void) __dead2; 74 int kthread_resume(struct thread *); 75 void kthread_shutdown(void *, int); 76 void kthread_start(const void *); 77 int kthread_suspend(struct thread *, int); 78 void kthread_suspend_check(void); 79 80 #endif /* !_SYS_KTHREAD_H_ */ 81