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/***********************************************************************
* *
* 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> *
* *
***********************************************************************/
#include <vmalloc.h>
/*
* vm open/close/resize - a handy default for discipline memory functions
*
* vmgetmem(0,0,0) open new region
* vmgetmem(r,0,0) free region
* vmgetmem(r,0,n) allocate n bytes initialized to 0
* vmgetmem(r,p,0) free p
* vmgetmem(r,p,n) realloc p to n bytes
*
* Written by Glenn S. Fowler.
*/
#if __STD_C
Void_t* vmgetmem(Vmalloc_t* vm, Void_t* data, size_t size)
#else
Void_t* vmgetmem(vm, data, size)
Vmalloc_t* vm;
Void_t* data;
size_t size;
#endif
{
if (!vm)
return vmopen(Vmdcheap, Vmbest, 0);
if (data || size)
return vmresize(vm, data, size, VM_RSMOVE|VM_RSCOPY|VM_RSZERO);
vmclose(vm);
return 0;
}
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