Return to rf_callback.c CVS log

Up to [local] / sys / dev / raidframe

Annotation of sys/dev/raidframe/rf_callback.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: rf_callback.c,v 1.3 2002/12/16 07:01:03 tdeval Exp $  */
        !             2: /*     $NetBSD: rf_callback.c,v 1.3 1999/02/05 00:06:06 oster Exp $    */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1995 Carnegie-Mellon University.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Author: Jim Zelenka
        !             9:  *
        !            10:  * Permission to use, copy, modify and distribute this software and
        !            11:  * its documentation is hereby granted, provided that both the copyright
        !            12:  * notice and this permission notice appear in all copies of the
        !            13:  * software, derivative works or modified versions, and any portions
        !            14:  * thereof, and that both notices appear in supporting documentation.
        !            15:  *
        !            16:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            17:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
        !            18:  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            19:  *
        !            20:  * Carnegie Mellon requests users of this software to return to
        !            21:  *
        !            22:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
        !            23:  *  School of Computer Science
        !            24:  *  Carnegie Mellon University
        !            25:  *  Pittsburgh PA 15213-3890
        !            26:  *
        !            27:  * any improvements or extensions that they make and grant Carnegie the
        !            28:  * rights to redistribute these changes.
        !            29:  */
        !            30:
        !            31: /*****************************************************************************
        !            32:  *
        !            33:  * rf_callback.c -- Code to manipulate callback descriptor.
        !            34:  *
        !            35:  *****************************************************************************/
        !            36:
        !            37:
        !            38: #include "rf_types.h"
        !            39: #include "rf_threadstuff.h"
        !            40: #include "rf_callback.h"
        !            41: #include "rf_debugMem.h"
        !            42: #include "rf_freelist.h"
        !            43: #include "rf_shutdown.h"
        !            44:
        !            45: static RF_FreeList_t *rf_callback_freelist;
        !            46:
        !            47: void rf_ShutdownCallback(void *);
        !            48:
        !            49: #define        RF_MAX_FREE_CALLBACK    64
        !            50: #define        RF_CALLBACK_INC          4
        !            51: #define        RF_CALLBACK_INITIAL      4
        !            52:
        !            53: void
        !            54: rf_ShutdownCallback(void *ignored)
        !            55: {
        !            56:        RF_FREELIST_DESTROY(rf_callback_freelist, next, (RF_CallbackDesc_t *));
        !            57: }
        !            58:
        !            59: int
        !            60: rf_ConfigureCallback(RF_ShutdownList_t **listp)
        !            61: {
        !            62:        int rc;
        !            63:
        !            64:        RF_FREELIST_CREATE(rf_callback_freelist, RF_MAX_FREE_CALLBACK,
        !            65:            RF_CALLBACK_INC, sizeof(RF_CallbackDesc_t));
        !            66:        if (rf_callback_freelist == NULL)
        !            67:                return (ENOMEM);
        !            68:        rc = rf_ShutdownCreate(listp, rf_ShutdownCallback, NULL);
        !            69:        if (rc) {
        !            70:                RF_ERRORMSG3("Unable to add to shutdown list file %s line %d"
        !            71:                    " rc=%d.\n", __FILE__, __LINE__, rc);
        !            72:                rf_ShutdownCallback(NULL);
        !            73:                return (rc);
        !            74:        }
        !            75:        RF_FREELIST_PRIME(rf_callback_freelist, RF_CALLBACK_INITIAL, next,
        !            76:            (RF_CallbackDesc_t *));
        !            77:        return (0);
        !            78: }
        !            79:
        !            80: RF_CallbackDesc_t *
        !            81: rf_AllocCallbackDesc(void)
        !            82: {
        !            83:        RF_CallbackDesc_t *p;
        !            84:
        !            85:        RF_FREELIST_GET(rf_callback_freelist, p, next, (RF_CallbackDesc_t *));
        !            86:        return (p);
        !            87: }
        !            88:
        !            89: void
        !            90: rf_FreeCallbackDesc(RF_CallbackDesc_t *p)
        !            91: {
        !            92:        RF_FREELIST_FREE(rf_callback_freelist, p, next);
        !            93: }