Imported Upstream version 93u+upstream

1 files changed, 58 insertions, 0 deletions

diff --git a/src/lib/libast/vmalloc/vmsegment.c b/src/lib/libast/vmalloc/vmsegment.c
new file mode 100644
index 0000000..9cf658d
--- /dev/null
+++ b/src/lib/libast/vmalloc/vmsegment.c
@@ -0,0 +1,58 @@
+/***********************************************************************
+*                                                                      *
+*               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_vmsegment(){}
+
+#else
+
+#include	"vmhdr.h"
+
+/*	Get the segment containing this address
+**
+**	Written by Kiem-Phong Vo, kpv@research.att.com, 02/07/95
+*/
+
+#if __STD_C
+Void_t* vmsegment(Vmalloc_t* vm, Void_t* addr)
+#else
+Void_t* vmsegment(vm, addr)
+Vmalloc_t*	vm;	/* region	*/
+Void_t*		addr;	/* address	*/
+#endif
+{
+	Seg_t		*seg;
+	Vmdata_t	*vd = vm->data;
+
+	SETLOCK(vm, 0);
+
+	for(seg = vd->seg; seg; seg = seg->next)
+		if((Vmuchar_t*)addr >= (Vmuchar_t*)seg->addr &&
+		   (Vmuchar_t*)addr <  (Vmuchar_t*)seg->baddr )
+			break;
+
+	CLRLOCK(vm, 0);
+
+	return seg ? (Void_t*)seg->addr : NIL(Void_t*);
+}
+
+#endif