78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
/****************************************************************************
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*
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* Open Watcom Project
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*
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* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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*
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* ========================================================================
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*
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* This file contains Original Code and/or Modifications of Original
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* Code as defined in and that are subject to the Sybase Open Watcom
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* Public License version 1.0 (the 'License'). You may not use this file
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* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
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* provided with the Original Code and Modifications, and is also
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* available at www.sybase.com/developer/opensource.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
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* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
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* NON-INFRINGEMENT. Please see the License for the specific language
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* governing rights and limitations under the License.
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*
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* ========================================================================
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*
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* Description: Module for adding functions to the atexit() list, as well
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* invoking the functions on library shutdown.
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*
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****************************************************************************/
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#include "variety.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include "rtdata.h"
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#include "extfunc.h"
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#include "rtinit.h"
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#define EXIT_LIMIT 32
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static void (* _HUGEDATA _ExitList[EXIT_LIMIT])( void );
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static int _ExitCount;
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int atexit( void (*func)( void ) )
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{
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if( _ExitCount < EXIT_LIMIT ) {
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_ExitList[ _ExitCount++ ] = func;
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return( 0 ); /* indicate added successfully */
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}
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return( -1 ); /* indicate no room */
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}
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typedef void exit_fn( void );
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#if defined(_M_IX86)
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#pragma aux (__outside_CLIB) exit_fn;
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#endif
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static void _Full_at_exit_rtn( void )
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{
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int count;
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exit_fn *func;
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count = _ExitCount;
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if( count == ( EXIT_LIMIT + 1 ) ) {
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return; /* already done once */
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}
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_ExitCount = EXIT_LIMIT + 1; /* prevent others being registered */
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/* call functions in reverse order of their registration */
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while( count != 0 ) {
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--count;
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func = _ExitList[ count ];
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(*func)(); /* invoke user exit routine */
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}
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}
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AYI( _Full_at_exit_rtn, INIT_PRIORITY_PROGRAM + 32 );
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