121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/* $NetBSD: rf_callback.c,v 1.1 1998/11/13 04:20:26 oster Exp $ */
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Jim Zelenka
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*****************************************************************************************
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*
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* callback.c -- code to manipulate callback descriptor
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*
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****************************************************************************************/
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/* :
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* Log: rf_callback.c,v
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* Revision 1.11 1996/06/17 03:18:04 jimz
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* include shutdown.h for macroized ShutdownCreate
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*
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* Revision 1.10 1996/06/10 11:55:47 jimz
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* Straightened out some per-array/not-per-array distinctions, fixed
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* a couple bugs related to confusion. Added shutdown lists. Removed
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* layout shutdown function (now subsumed by shutdown lists).
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*
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* Revision 1.9 1996/05/23 21:46:35 jimz
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* checkpoint in code cleanup (release prep)
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* lots of types, function names have been fixed
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*
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* Revision 1.8 1996/05/18 19:51:34 jimz
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* major code cleanup- fix syntax, make some types consistent,
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* add prototypes, clean out dead code, et cetera
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*
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* Revision 1.7 1996/05/17 16:30:41 jimz
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* convert to RF_FREELIST stuff
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*
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* Revision 1.6 1995/12/01 15:16:04 root
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* added copyright info
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*
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*/
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#ifndef _KERNEL
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#ifdef __NetBSD__
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#include <unistd.h>
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#endif /* __NetBSD__ */
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#endif
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#include "rf_types.h"
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#include "rf_threadstuff.h"
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#include "rf_callback.h"
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#include "rf_debugMem.h"
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#include "rf_freelist.h"
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#include "rf_shutdown.h"
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static RF_FreeList_t *rf_callback_freelist;
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#define RF_MAX_FREE_CALLBACK 64
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#define RF_CALLBACK_INC 4
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#define RF_CALLBACK_INITIAL 4
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static void rf_ShutdownCallback(void *);
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static void rf_ShutdownCallback(ignored)
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void *ignored;
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{
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RF_FREELIST_DESTROY(rf_callback_freelist,next,(RF_CallbackDesc_t *));
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}
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int rf_ConfigureCallback(listp)
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RF_ShutdownList_t **listp;
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{
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int rc;
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RF_FREELIST_CREATE(rf_callback_freelist, RF_MAX_FREE_CALLBACK,
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RF_CALLBACK_INC, sizeof(RF_CallbackDesc_t));
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if (rf_callback_freelist == NULL)
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return(ENOMEM);
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rc = rf_ShutdownCreate(listp, rf_ShutdownCallback, NULL);
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if (rc) {
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RF_ERRORMSG3("Unable to add to shutdown list file %s line %d rc=%d\n", __FILE__,
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__LINE__, rc);
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rf_ShutdownCallback(NULL);
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return(rc);
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}
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RF_FREELIST_PRIME(rf_callback_freelist, RF_CALLBACK_INITIAL,next,
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(RF_CallbackDesc_t *));
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return(0);
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}
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RF_CallbackDesc_t *rf_AllocCallbackDesc()
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{
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RF_CallbackDesc_t *p;
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RF_FREELIST_GET(rf_callback_freelist,p,next,(RF_CallbackDesc_t *));
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return(p);
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}
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void rf_FreeCallbackDesc(p)
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RF_CallbackDesc_t *p;
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{
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RF_FREELIST_FREE(rf_callback_freelist,p,next);
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}
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