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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 615 | serge | 1 | /**************************************************************************** |
| 2 | * |
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| 3 | * Open Watcom Project |
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| 4 | * |
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| 5 | * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
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| 6 | * |
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| 7 | * ======================================================================== |
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| 8 | * |
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| 9 | * This file contains Original Code and/or Modifications of Original |
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| 10 | * Code as defined in and that are subject to the Sybase Open Watcom |
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| 11 | * Public License version 1.0 (the 'License'). You may not use this file |
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| 12 | * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
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| 13 | * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
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| 14 | * provided with the Original Code and Modifications, and is also |
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| 15 | * available at www.sybase.com/developer/opensource. |
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| 16 | * |
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| 17 | * The Original Code and all software distributed under the License are |
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| 18 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
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| 19 | * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
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| 20 | * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
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| 21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
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| 22 | * NON-INFRINGEMENT. Please see the License for the specific language |
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| 23 | * governing rights and limitations under the License. |
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| 24 | * |
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| 25 | * ======================================================================== |
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| 26 | * |
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| 27 | * Description: Module for adding functions to the atexit() list, as well |
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| 28 | * invoking the functions on library shutdown. |
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| 29 | * |
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| 30 | ****************************************************************************/ |
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| 31 | |||
| 32 | |||
| 33 | #include "variety.h" |
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| 34 | #include |
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| 35 | #include |
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| 36 | #include "rtdata.h" |
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| 37 | #include "extfunc.h" |
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| 38 | #include "rtinit.h" |
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| 39 | |||
| 40 | #define EXIT_LIMIT 32 |
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| 41 | |||
| 42 | static void (* _HUGEDATA _ExitList[EXIT_LIMIT])( void ); |
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| 43 | static int _ExitCount; |
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| 44 | |||
| 45 | int atexit( void (*func)( void ) ) |
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| 46 | { |
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| 47 | if( _ExitCount < EXIT_LIMIT ) { |
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| 48 | _ExitList[ _ExitCount++ ] = func; |
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| 49 | return( 0 ); /* indicate added successfully */ |
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| 50 | } |
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| 51 | return( -1 ); /* indicate no room */ |
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| 52 | } |
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| 53 | |||
| 54 | typedef void exit_fn( void ); |
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| 55 | #if defined(_M_IX86) |
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| 56 | #pragma aux (__outside_CLIB) exit_fn; |
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| 57 | #endif |
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| 58 | |||
| 59 | static void _Full_at_exit_rtn( void ) |
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| 60 | { |
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| 61 | int count; |
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| 62 | exit_fn *func; |
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| 63 | |||
| 64 | count = _ExitCount; |
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| 65 | if( count == ( EXIT_LIMIT + 1 ) ) { |
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| 66 | return; /* already done once */ |
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| 67 | } |
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| 68 | _ExitCount = EXIT_LIMIT + 1; /* prevent others being registered */ |
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| 69 | /* call functions in reverse order of their registration */ |
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| 70 | while( count != 0 ) { |
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| 71 | --count; |
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| 72 | func = _ExitList[ count ]; |
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| 73 | (*func)(); /* invoke user exit routine */ |
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| 74 | } |
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| 75 | } |
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| 76 | |||
| 77 | AYI( _Full_at_exit_rtn, INIT_PRIORITY_PROGRAM + 32 ); |