1a9643ea8Slogwang /*- 2*22ce4affSfengbojiang * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3*22ce4affSfengbojiang * 4a9643ea8Slogwang * Copyright (c) 1999 Peter Wemm <[email protected]> 5a9643ea8Slogwang * All rights reserved. 6a9643ea8Slogwang * 7a9643ea8Slogwang * Redistribution and use in source and binary forms, with or without 8a9643ea8Slogwang * modification, are permitted provided that the following conditions 9a9643ea8Slogwang * are met: 10a9643ea8Slogwang * 1. Redistributions of source code must retain the above copyright 11a9643ea8Slogwang * notice, this list of conditions and the following disclaimer. 12a9643ea8Slogwang * 2. Redistributions in binary form must reproduce the above copyright 13a9643ea8Slogwang * notice, this list of conditions and the following disclaimer in the 14a9643ea8Slogwang * documentation and/or other materials provided with the distribution. 15a9643ea8Slogwang * 16a9643ea8Slogwang * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17a9643ea8Slogwang * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18a9643ea8Slogwang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19a9643ea8Slogwang * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20a9643ea8Slogwang * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21a9643ea8Slogwang * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22a9643ea8Slogwang * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23a9643ea8Slogwang * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24a9643ea8Slogwang * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25a9643ea8Slogwang * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26a9643ea8Slogwang * SUCH DAMAGE. 27a9643ea8Slogwang * 28a9643ea8Slogwang * $FreeBSD$ 29a9643ea8Slogwang */ 30a9643ea8Slogwang 31a9643ea8Slogwang #ifndef _SYS_KTHREAD_H_ 32a9643ea8Slogwang #define _SYS_KTHREAD_H_ 33a9643ea8Slogwang 34a9643ea8Slogwang #include <sys/cdefs.h> 35a9643ea8Slogwang 36a9643ea8Slogwang /* 37a9643ea8Slogwang * A kernel process descriptor; used to start "internal" daemons. 38a9643ea8Slogwang * 39a9643ea8Slogwang * Note: global_procpp may be NULL for no global save area. 40a9643ea8Slogwang */ 41a9643ea8Slogwang struct kproc_desc { 42a9643ea8Slogwang const char *arg0; /* arg 0 (for 'ps' listing) */ 43a9643ea8Slogwang void (*func)(void); /* "main" for kernel process */ 44a9643ea8Slogwang struct proc **global_procpp; /* ptr to proc ptr save area */ 45a9643ea8Slogwang }; 46a9643ea8Slogwang 47a9643ea8Slogwang /* A kernel thread descriptor; used to start "internal" daemons. */ 48a9643ea8Slogwang struct kthread_desc { 49a9643ea8Slogwang const char *arg0; /* arg 0 (for 'ps' listing) */ 50a9643ea8Slogwang void (*func)(void); /* "main" for kernel thread */ 51a9643ea8Slogwang struct thread **global_threadpp; /* ptr to thread ptr save area */ 52a9643ea8Slogwang }; 53a9643ea8Slogwang 54a9643ea8Slogwang int kproc_create(void (*)(void *), void *, struct proc **, 55a9643ea8Slogwang int flags, int pages, const char *, ...) __printflike(6, 7); 56a9643ea8Slogwang void kproc_exit(int) __dead2; 57a9643ea8Slogwang int kproc_resume(struct proc *); 58a9643ea8Slogwang void kproc_shutdown(void *, int); 59a9643ea8Slogwang void kproc_start(const void *); 60a9643ea8Slogwang int kproc_suspend(struct proc *, int); 61a9643ea8Slogwang void kproc_suspend_check(struct proc *); 62a9643ea8Slogwang 63a9643ea8Slogwang /* create a thread inthe given process. create the process if needed */ 64a9643ea8Slogwang int kproc_kthread_add(void (*)(void *), void *, 65a9643ea8Slogwang struct proc **, 66a9643ea8Slogwang struct thread **, 67a9643ea8Slogwang int flags, int pages, 68a9643ea8Slogwang const char *procname, const char *, ...) __printflike(8, 9); 69a9643ea8Slogwang 70a9643ea8Slogwang int kthread_add(void (*)(void *), void *, 71a9643ea8Slogwang struct proc *, struct thread **, 72a9643ea8Slogwang int flags, int pages, const char *, ...) __printflike(7, 8); 73a9643ea8Slogwang void kthread_exit(void) __dead2; 74a9643ea8Slogwang int kthread_resume(struct thread *); 75a9643ea8Slogwang void kthread_shutdown(void *, int); 76a9643ea8Slogwang void kthread_start(const void *); 77a9643ea8Slogwang int kthread_suspend(struct thread *, int); 78a9643ea8Slogwang void kthread_suspend_check(void); 79a9643ea8Slogwang 80a9643ea8Slogwang #endif /* !_SYS_KTHREAD_H_ */ 81