/**************************************************************************** * * 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: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE * DESCRIBE IT HERE! * ****************************************************************************/ //#include "dll.h" // needs to be first #include "variety.h" #include <stddef.h> #include <malloc.h> #include "heap.h" #include "heapacc.h" /* Return the amount of memory available in the near heap. */ /* Best done at start of program and after _nheapgrow() has been called. */ _WCRTLINK size_t _memavl( void ) { size_t length; frlptr pnext; mheapptr mhp; length = 0; _AccessNHeap(); for( mhp = __nheapbeg; mhp != NULL; mhp = mhp->next ) { pnext = mhp->freehead.next; while( pnext != (frlptr) &mhp->freehead ) { length += ( (pnext->len - TAG_SIZE) & ~ROUND_SIZE ); pnext = pnext->next; } } _ReleaseNHeap(); return( length ); }