/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2011 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#if defined(_UWIN) && defined(_BLD_ast)
void _STUB_vmdcheap(){}
#else
#include "vmhdr.h"
/* A discipline to get memory from the heap.
**
** Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94.
*/
#if __STD_C
static Void_t* heapmem(Vmalloc_t* vm, Void_t* caddr,
size_t csize, size_t nsize,
Vmdisc_t* disc)
#else
static Void_t* heapmem(vm, caddr, csize, nsize, disc)
Vmalloc_t* vm; /* region doing allocation from */
Void_t* caddr; /* current low address */
size_t csize; /* current size */
size_t nsize; /* new size */
Vmdisc_t* disc; /* discipline structure */
#endif
{
if(csize == 0 && nsize == 0)
return NIL(Void_t*);
else if(csize == 0)
return vmalloc(Vmheap,nsize);
else if(nsize == 0)
return vmfree(Vmheap,caddr) >= 0 ? caddr : NIL(Void_t*);
else return vmresize(Vmheap,caddr,nsize,0);
}
static Vmdisc_t _Vmdcheap = { heapmem, NIL(Vmexcept_f), 0 };
__DEFINE__(Vmdisc_t*,Vmdcheap,&_Vmdcheap);
#ifdef NoF
NoF(vmdcheap)
#endif
#endif