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/* $OpenBSD: rf_callback.c,v 1.1 1999/01/11 14:29:00 niklas Exp $ */
/* $NetBSD: rf_callback.c,v 1.1 1998/11/13 04:20:26 oster Exp $ */
/*
* Copyright (c) 1995 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.
*/
/*****************************************************************************************
*
* callback.c -- code to manipulate callback descriptor
*
****************************************************************************************/
/* :
* Log: rf_callback.c,v
* Revision 1.11 1996/06/17 03:18:04 jimz
* include shutdown.h for macroized ShutdownCreate
*
* Revision 1.10 1996/06/10 11:55:47 jimz
* Straightened out some per-array/not-per-array distinctions, fixed
* a couple bugs related to confusion. Added shutdown lists. Removed
* layout shutdown function (now subsumed by shutdown lists).
*
* Revision 1.9 1996/05/23 21:46:35 jimz
* checkpoint in code cleanup (release prep)
* lots of types, function names have been fixed
*
* Revision 1.8 1996/05/18 19:51:34 jimz
* major code cleanup- fix syntax, make some types consistent,
* add prototypes, clean out dead code, et cetera
*
* Revision 1.7 1996/05/17 16:30:41 jimz
* convert to RF_FREELIST stuff
*
* Revision 1.6 1995/12/01 15:16:04 root
* added copyright info
*
*/
#ifndef _KERNEL
#ifdef __NetBSD__
#include <unistd.h>
#endif /* __NetBSD__ */
#endif
#include "rf_types.h"
#include "rf_threadstuff.h"
#include "rf_callback.h"
#include "rf_debugMem.h"
#include "rf_freelist.h"
#include "rf_shutdown.h"
static RF_FreeList_t *rf_callback_freelist;
#define RF_MAX_FREE_CALLBACK 64
#define RF_CALLBACK_INC 4
#define RF_CALLBACK_INITIAL 4
static void rf_ShutdownCallback(void *);
static void rf_ShutdownCallback(ignored)
void *ignored;
{
RF_FREELIST_DESTROY(rf_callback_freelist,next,(RF_CallbackDesc_t *));
}
int rf_ConfigureCallback(listp)
RF_ShutdownList_t **listp;
{
int rc;
RF_FREELIST_CREATE(rf_callback_freelist, RF_MAX_FREE_CALLBACK,
RF_CALLBACK_INC, sizeof(RF_CallbackDesc_t));
if (rf_callback_freelist == NULL)
return(ENOMEM);
rc = rf_ShutdownCreate(listp, rf_ShutdownCallback, NULL);
if (rc) {
RF_ERRORMSG3("Unable to add to shutdown list file %s line %d rc=%d\n", __FILE__,
__LINE__, rc);
rf_ShutdownCallback(NULL);
return(rc);
}
RF_FREELIST_PRIME(rf_callback_freelist, RF_CALLBACK_INITIAL,next,
(RF_CallbackDesc_t *));
return(0);
}
RF_CallbackDesc_t *rf_AllocCallbackDesc()
{
RF_CallbackDesc_t *p;
RF_FREELIST_GET(rf_callback_freelist,p,next,(RF_CallbackDesc_t *));
return(p);
}
void rf_FreeCallbackDesc(p)
RF_CallbackDesc_t *p;
{
RF_FREELIST_FREE(rf_callback_freelist,p,next);
}
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