Imported Upstream version 93u+upstream

1 files changed, 51 insertions, 0 deletions

diff --git a/src/lib/libast/vmalloc/vmgetmem.c b/src/lib/libast/vmalloc/vmgetmem.c
new file mode 100644
index 0000000..e205fd3
--- /dev/null
+++ b/src/lib/libast/vmalloc/vmgetmem.c
@@ -0,0 +1,51 @@
+/***********************************************************************
+*                                                                      *
+*               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>                    *
+*                                                                      *
+***********************************************************************/
+#include	<vmalloc.h>
+
+/*
+ * vm open/close/resize - a handy default for discipline memory functions
+ *
+ *	vmgetmem(0,0,0)		open new region
+ *	vmgetmem(r,0,0)		free region
+ *	vmgetmem(r,0,n)		allocate n bytes initialized to 0
+ *	vmgetmem(r,p,0)		free p
+ *	vmgetmem(r,p,n)		realloc p to n bytes
+ *
+ * Written by Glenn S. Fowler.
+ */
+
+#if __STD_C
+Void_t* vmgetmem(Vmalloc_t* vm, Void_t* data, size_t size)
+#else
+Void_t* vmgetmem(vm, data, size)
+Vmalloc_t*	vm;
+Void_t*		data;
+size_t		size;
+#endif
+{
+	if (!vm)
+		return vmopen(Vmdcheap, Vmbest, 0);
+	if (data || size)
+		return vmresize(vm, data, size, VM_RSMOVE|VM_RSCOPY|VM_RSZERO);
+	vmclose(vm);
+	return 0;
+}