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kolibrios/programs/develop/open watcom/trunk/clib/heap/nheapset.c
Sergey Semyonov (Serge) 836c97f0ac Clib string & memory functions
git-svn-id: svn://kolibrios.org@553 a494cfbc-eb01-0410-851d-a64ba20cac60
2007-06-26 00:54:22 +00:00

80 lines
2.5 KiB
C

/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: Near heap set routines.
*
****************************************************************************/
//#include "dll.h" // needs to be first
#include "variety.h"
#include <stddef.h>
#include <malloc.h>
#include <string.h>
#include "heap.h"
#include "heapacc.h"
#if defined(__SMALL_DATA__)
_WCRTLINK int _heapset( unsigned int fill )
{
return( _nheapset( fill ) );
}
#endif
#if defined(_M_IX86)
#pragma intrinsic(_fmemset)
#endif
_WCRTLINK int _nheapset( unsigned int fill )
{
mheapptr mhp;
frlptr curr;
int test_heap;
test_heap = _heapchk();
if( test_heap != _HEAPOK ) {
return( test_heap );
}
fill |= fill << 8;
_AccessNHeap();
for( mhp = __nheapbeg; mhp != NULL; mhp = mhp->next ) {
curr = mhp->freehead.next;
for( ;; ) {
if( curr == (frlptr) &mhp->freehead ) break;
#if defined(_M_IX86)
_fmemset( (void _WCFAR *)(curr + 1), fill, curr->len - sizeof(frl) );
#else
memset( (void *)(curr + 1), fill, curr->len - sizeof(frl) );
#endif
curr = curr->next;
}
}
_ReleaseNHeap();
return( _HEAPOK );
}