1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5 *                      and is licensed under the                       *
6 *                 Eclipse Public License, Version 1.0                  *
7 *                    by AT&T Intellectual Property                     *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *          http://www.eclipse.org/org/documents/epl-v10.html           *
11 *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
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_vmsegment()24 void _STUB_vmsegment(){}
25 
26 #else
27 
28 #include	"vmhdr.h"
29 
30 /*	Get the segment containing this address
31 **
32 **	Written by Kiem-Phong Vo, kpv@research.att.com, 02/07/95
33 */
34 
35 #if __STD_C
vmsegment(Vmalloc_t * vm,Void_t * addr)36 Void_t* vmsegment(Vmalloc_t* vm, Void_t* addr)
37 #else
38 Void_t* vmsegment(vm, addr)
39 Vmalloc_t*	vm;	/* region	*/
40 Void_t*		addr;	/* address	*/
41 #endif
42 {
43 	Seg_t		*seg;
44 	Vmdata_t	*vd = vm->data;
45 
46 	SETLOCK(vm, 0);
47 
48 	for(seg = vd->seg; seg; seg = seg->next)
49 		if((Vmuchar_t*)addr >= (Vmuchar_t*)seg->addr &&
50 		   (Vmuchar_t*)addr <  (Vmuchar_t*)seg->baddr )
51 			break;
52 
53 	CLRLOCK(vm, 0);
54 
55 	return seg ? (Void_t*)seg->addr : NIL(Void_t*);
56 }
57 
58 #endif
59