--- /dev/null
+/* Extra functions for resource usage.
+ Copyright (C) 2011 Free Software Foundation, Inc.
+ Written by Bruno Haible <bruno@clisp.org>, 2011.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _RESOURCE_EXT_H
+#define _RESOURCE_EXT_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Returns the amount of address space currently in use by the current
+ process, or zero if unknown.
+ This is the quantity which is limited by setrlimit(RLIMIT_AS,...). */
+extern uintptr_t get_rusage_as (void);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RESOURCE_EXT_H */