80 lines
2.5 KiB
C
80 lines
2.5 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: Near heap set routines.
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*
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****************************************************************************/
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//#include "dll.h" // needs to be first
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#include "variety.h"
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#include <stddef.h>
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#include <malloc.h>
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#include <string.h>
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#include "heap.h"
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#include "heapacc.h"
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#if defined(__SMALL_DATA__)
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_WCRTLINK int _heapset( unsigned int fill )
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{
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return( _nheapset( fill ) );
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}
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#endif
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#if defined(_M_IX86)
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#pragma intrinsic(_fmemset)
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#endif
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_WCRTLINK int _nheapset( unsigned int fill )
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{
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mheapptr mhp;
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frlptr curr;
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int test_heap;
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test_heap = _heapchk();
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if( test_heap != _HEAPOK ) {
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return( test_heap );
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}
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fill |= fill << 8;
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_AccessNHeap();
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for( mhp = __nheapbeg; mhp != NULL; mhp = mhp->next ) {
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curr = mhp->freehead.next;
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for( ;; ) {
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if( curr == (frlptr) &mhp->freehead ) break;
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#if defined(_M_IX86)
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_fmemset( (void _WCFAR *)(curr + 1), fill, curr->len - sizeof(frl) );
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#else
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memset( (void *)(curr + 1), fill, curr->len - sizeof(frl) );
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#endif
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curr = curr->next;
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}
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}
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_ReleaseNHeap();
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return( _HEAPOK );
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}
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