1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2010 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                  Common Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*            http://www.opensource.org/licenses/cpl1.0.txt             *
11*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#if defined(_UWIN) && defined(_BLD_ast)
23
24void _STUB_vmgetmem(){}
25
26#else
27
28#include	"vmhdr.h"
29
30/*
31 * vm open/close/resize - a handy default for discipline memory functions
32 *
33 *	vmgetmem(0,0,0)		open new region
34 *	vmgetmem(r,0,0)		free region
35 *	vmgetmem(r,0,n)		allocate n bytes initialized to 0
36 *	vmgetmem(r,p,0)		free p
37 *	vmgetmem(r,p,n)		realloc p to n bytes
38 *
39 * Written by Glenn S. Fowler.
40 */
41
42#if __STD_C
43Void_t* vmgetmem(Vmalloc_t* vm, Void_t* data, size_t size)
44#else
45Void_t* vmgetmem(vm, data, size)
46Vmalloc_t*	vm;
47Void_t*		data;
48size_t		size;
49#endif
50{
51	if (!vm)
52		return vmopen(Vmdcheap, Vmbest, 0);
53	if (data || size)
54		return vmresize(vm, data, size, VM_RSMOVE|VM_RSCOPY|VM_RSZERO);
55	vmclose(vm);
56	return 0;
57}
58
59#endif
60