freebsd-nq/sys/sys/kthread.h
2010-07-22 05:42:29 +00:00

80 lines
3.0 KiB
C

/*-
* Copyright (c) 1999 Peter Wemm <peter@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _SYS_KTHREAD_H_
#define _SYS_KTHREAD_H_
#include <sys/cdefs.h>
/*
* A kernel process descriptor; used to start "internal" daemons.
*
* Note: global_procpp may be NULL for no global save area.
*/
struct kproc_desc {
char *arg0; /* arg 0 (for 'ps' listing) */
void (*func)(void); /* "main" for kernel process */
struct proc **global_procpp; /* ptr to proc ptr save area */
};
/* A kernel thread descriptor; used to start "internal" daemons. */
struct kthread_desc {
char *arg0; /* arg 0 (for 'ps' listing) */
void (*func)(void); /* "main" for kernel thread */
struct thread **global_threadpp; /* ptr to thread ptr save area */
};
int kproc_create(void (*)(void *), void *, struct proc **,
int flags, int pages, const char *, ...) __printflike(6, 7);
void kproc_exit(int) __dead2;
int kproc_resume(struct proc *);
void kproc_shutdown(void *, int);
void kproc_start(const void *);
int kproc_suspend(struct proc *, int);
void kproc_suspend_check(struct proc *);
/* create a thread inthe given process. create the process if needed */
int kproc_kthread_add(void (*)(void *), void *,
struct proc **,
struct thread **,
int flags, int pages,
const char *procname, const char *, ...) __printflike(8, 9);
int kthread_add(void (*)(void *), void *,
struct proc *, struct thread **,
int flags, int pages, const char *, ...) __printflike(7, 8);
void kthread_exit(void) __dead2;
int kthread_resume(struct thread *);
void kthread_shutdown(void *, int);
void kthread_start(const void *);
int kthread_suspend(struct thread *, int);
void kthread_suspend_check(void);
#endif /* !_SYS_KTHREAD_H_ */