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 24void _STUB_vmregion(){} 25 26#else 27 28#include "vmhdr.h" 29 30/* Return the containing region of an allocated piece of memory. 31** Beware: this only works with Vmbest, Vmdebug and Vmprofile. 32** 33** 10/31/2009: Add handling of shared/persistent memory regions. 34** 35** Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94. 36*/ 37#if __STD_C 38Vmalloc_t* vmregion(Void_t* addr) 39#else 40Vmalloc_t* vmregion(addr) 41Void_t* addr; 42#endif 43{ 44 Vmalloc_t *vm; 45 Vmdata_t *vd; 46 47 if(!addr) 48 return NIL(Vmalloc_t*); 49 50 vd = SEG(BLOCK(addr))->vmdt; 51 52 _vmlock(NIL(Vmalloc_t*), 1); 53 for(vm = Vmheap; vm; vm = vm->next) 54 if(vm->data == vd) 55 break; 56 _vmlock(NIL(Vmalloc_t*), 0); 57 58 return vm; 59} 60 61#endif 62