* modules/gethrxtime: New file.

[gnulib.git] / lib / gethrxtime.h

diff --git a/lib/gethrxtime.h b/lib/gethrxtime.h
new file mode 100644 (file)
index 0000000..2c0e36d
--- /dev/null
+++ b/lib/gethrxtime.h
@@ -0,0 +1,37 @@
+/* gethrxtime -- get high resolution real time
+
+   Copyright (C) 2005 Free Software Foundation, Inc.
+
+   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 2, 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, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* Written by Paul Eggert.  */
+
+#ifndef GETHRXTIME_H_
+#define GETHRXTIME_H_ 1
+
+#include "xtime.h"
+
+/* Get the current time, as a count of the number of nanoseconds since
+   an arbitrary epoch (e.g., the system boot time).  This clock can't
+   be set, is always increasing, and is nearly linear.  */
+
+#if HAVE_ARITHMETIC_HRTIME_T && HAVE_DECL_GETHRTIME
+# include <time.h>
+static inline xtime_t gethrxtime (void) { return gethrtime (); }
+#else
+xtime_t gethrxtime (void);
+#endif
+
+#endif