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
_STUB_vmgetmem()24 void _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
vmgetmem(Vmalloc_t * vm,Void_t * data,size_t size)43 Void_t* vmgetmem(Vmalloc_t* vm, Void_t* data, size_t size)
44 #else
45 Void_t* vmgetmem(vm, data, size)
46 Vmalloc_t* vm;
47 Void_t* data;
48 size_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