FreeBSD/Linux Kernel Cross Reference
sys/sys/kthread.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * 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 {
            const 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 {
            const 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 in the 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_ */

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