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 */ 39 struct 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. */ 46 struct 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 52 int kproc_create(void (*)(void *), void *, struct proc **, 53 int flags, int pages, const char *, ...) __printflike(6, 7); 54 void kproc_exit(int) __dead2; 55 int kproc_resume(struct proc *); 56 void kproc_shutdown(void *, int); 57 void kproc_start(const void *); 58 int kproc_suspend(struct proc *, int); 59 void kproc_suspend_check(struct proc *); 60 61 /* create a thread in the given process. create the process if needed */ 62 int 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 68 int kthread_add(void (*)(void *), void *, 69 struct proc *, struct thread **, 70 int flags, int pages, const char *, ...) __printflike(7, 8); 71 void kthread_exit(void) __dead2; 72 int kthread_resume(struct thread *); 73 void kthread_shutdown(void *, int); 74 void kthread_start(const void *); 75 int kthread_suspend(struct thread *, int); 76 void kthread_suspend_check(void); 77 78 #endif /* !_SYS_KTHREAD_H_ */ 79