FreeBSD/Linux Kernel Cross Reference
sys/dev/raidframe/rf_shutdown.h

     /*      $NetBSD: rf_shutdown.h,v 1.5 2004/03/09 02:15:33 oster Exp $    */
     /*
      * rf_shutdown.h
      */
     /*
      * Copyright (c) 1996 Carnegie-Mellon University.
      * All rights reserved.
      *
      * Author: Jim Zelenka
     *
     * Permission to use, copy, modify and distribute this software and
     * its documentation is hereby granted, provided that both the copyright
     * notice and this permission notice appear in all copies of the
     * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     *
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     *
     * Carnegie Mellon requests users of this software to return to
     *
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     *
     * any improvements or extensions that they make and grant Carnegie the
     * rights to redistribute these changes.
     */
    /*
     * Maintain lists of cleanup functions. Also, mechanisms for coordinating
     * thread startup and shutdown.
     */
    
    #ifndef _RF__RF_SHUTDOWN_H_
    #define _RF__RF_SHUTDOWN_H_
    
    #include <dev/raidframe/raidframevar.h>
    
    #include "rf_threadstuff.h"
    
    /*
     * Important note: the shutdown list is run like a stack, new
     * entries pushed on top. Therefore, the most recently added
     * entry (last started) is the first removed (stopped). This
     * should handle system-dependencies pretty nicely- if a system
     * is there when you start another, it'll be there when you
     * shut down another. Hopefully, this subsystem will remove
     * more complexity than it introduces.
     */
    
    struct RF_ShutdownList_s {
            void    (*cleanup) (void *arg);
            void   *arg;
    #if RF_DEBUG_SHUTDOWN
            char   *file;
            int     line;
    #endif
            RF_ShutdownList_t *next;
    };
    #if RF_DEBUG_SHUTDOWN
    #define rf_ShutdownCreate(_listp_,_func_,_arg_) \
      _rf_ShutdownCreate(_listp_,_func_,_arg_,__FILE__,__LINE__)
    void _rf_ShutdownCreate(RF_ShutdownList_t **, void (*cleanup) (void *),
                            void *, char *, int);
    #else
    #define rf_ShutdownCreate(_listp_,_func_,_arg_) \
      _rf_ShutdownCreate(_listp_,_func_,_arg_)
    void _rf_ShutdownCreate(RF_ShutdownList_t **, void (*cleanup) (void *), 
                            void *);
    #endif
    void rf_ShutdownList(RF_ShutdownList_t **);
    
    #endif                          /* !_RF__RF_SHUTDOWN_H_ */

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