1eecf8e491
out-dated comments, and other unneeded stuff. This helps prepare for cleaning up the rest of the code, and adding new functionality. No functional changes to the kernel code in this commit.
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/* $NetBSD: rf_callback.c,v 1.2 1999/01/26 02:33:50 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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#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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