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Annotation of sys/dev/raidframe/rf_shutdown.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: rf_shutdown.h,v 1.4 2002/12/16 07:01:05 tdeval Exp $  */
                      2: /*     $NetBSD: rf_shutdown.h,v 1.2 1999/02/05 00:06:17 oster Exp $    */
                      3:
                      4: /*
                      5:  * rf_shutdown.h
                      6:  */
                      7: /*
                      8:  * Copyright (c) 1996 Carnegie-Mellon University.
                      9:  * All rights reserved.
                     10:  *
                     11:  * Author: Jim Zelenka
                     12:  *
                     13:  * Permission to use, copy, modify and distribute this software and
                     14:  * its documentation is hereby granted, provided that both the copyright
                     15:  * notice and this permission notice appear in all copies of the
                     16:  * software, derivative works or modified versions, and any portions
                     17:  * thereof, and that both notices appear in supporting documentation.
                     18:  *
                     19:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     20:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
                     21:  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     22:  *
                     23:  * Carnegie Mellon requests users of this software to return to
                     24:  *
                     25:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
                     26:  *  School of Computer Science
                     27:  *  Carnegie Mellon University
                     28:  *  Pittsburgh PA 15213-3890
                     29:  *
                     30:  * any improvements or extensions that they make and grant Carnegie the
                     31:  * rights to redistribute these changes.
                     32:  */
                     33: /*
                     34:  * Maintain lists of cleanup functions. Also, mechanisms for coordinating
                     35:  * thread startup and shutdown.
                     36:  */
                     37:
                     38: #ifndef        _RF__RF_SHUTDOWN_H_
                     39: #define        _RF__RF_SHUTDOWN_H_
                     40:
                     41: #include "rf_types.h"
                     42: #include "rf_threadstuff.h"
                     43:
                     44: /*
                     45:  * Important note: The shutdown list is run like a stack, new
                     46:  * entries pushed on top. Therefore, the most recently added
                     47:  * entry (last started) is the first removed (stopped). This
                     48:  * should handle system-dependencies pretty nicely- if a system
                     49:  * is there when you start another, it'll be there when you
                     50:  * shut down another. Hopefully, this subsystem will remove
                     51:  * more complexity than it introduces.
                     52:  */
                     53:
                     54: struct RF_ShutdownList_s {
                     55:        void             (*cleanup) (void *arg);
                     56:        void              *arg;
                     57:        char              *file;
                     58:        int                line;
                     59:        RF_ShutdownList_t *next;
                     60: };
                     61: #define        rf_ShutdownCreate(_listp_,_func_,_arg_)                         \
                     62:        _rf_ShutdownCreate(_listp_, _func_, _arg_, __FILE__, __LINE__)
                     63:
                     64: int  _rf_ShutdownCreate(RF_ShutdownList_t **, void (*) (void *arg), void *,
                     65:        char *, int);
                     66: int  rf_ShutdownList(RF_ShutdownList_t **);
                     67: void rf_shutdown_hook(RF_ThreadArg_t);
                     68:
                     69: #endif /* !_RF__RF_SHUTDOWN_H_ */