Imported Upstream version 93u+upstream

1 files changed, 61 insertions, 0 deletions

diff --git a/src/lib/libast/vmalloc/vmregion.c b/src/lib/libast/vmalloc/vmregion.c
new file mode 100644
index 0000000..9aa1172
--- /dev/null
+++ b/src/lib/libast/vmalloc/vmregion.c
@@ -0,0 +1,61 @@
+/***********************************************************************
+*                                                                      *
+*               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>                    *
+*                                                                      *
+***********************************************************************/
+#if defined(_UWIN) && defined(_BLD_ast)
+
+void _STUB_vmregion(){}
+
+#else
+
+#include	"vmhdr.h"
+
+/*	Return the containing region of an allocated piece of memory.
+**	Beware: this only works with Vmbest, Vmdebug and Vmprofile.
+**
+**	10/31/2009: Add handling of shared/persistent memory regions.
+**
+**	Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94.
+*/
+#if __STD_C
+Vmalloc_t* vmregion(Void_t* addr)
+#else
+Vmalloc_t* vmregion(addr)
+Void_t*	addr;
+#endif
+{
+	Vmalloc_t	*vm;
+	Vmdata_t	*vd;
+
+	if(!addr)
+		return NIL(Vmalloc_t*);
+
+	vd = SEG(BLOCK(addr))->vmdt;
+
+	_vmlock(NIL(Vmalloc_t*), 1);
+	for(vm = Vmheap; vm; vm = vm->next)
+		if(vm->data == vd)
+			break;
+	_vmlock(NIL(Vmalloc_t*), 0);
+
+	return vm;
+}
+
+#endif