--- a
+++ b/src/chrono.h
@@ -0,0 +1,51 @@
+/* Copyright (C) 2016 J.F.Dockes
+ *   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 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, write to the
+ *   Free Software Foundation, Inc.,
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+#ifndef _CHRONO_H_
+#define _CHRONO_H_
+#include <chrono>
+
+/** Easy interface to measuring time intervals */
+class Chrono {
+public:
+    /** Initialize, setting the origin time */
+    Chrono();
+
+    /** Re-store current time and return mS since init or last call */
+    long restart();
+    /** Re-store current time and return uS since init or last call */
+    long urestart();
+
+    /** Snapshot current time to static storage */
+    static void refnow();
+
+    /** Return interval value in various units.
+     *
+     * Frozen means give time since the last refnow call (this is to
+     * allow for using one actual system call to get values from many
+     * chrono objects, like when examining timeouts in a queue
+     */
+    long millis(bool frozen = false);
+    long micros(bool frozen = false);
+    float secs(bool frozen = false);
+
+private:
+    typedef std::chrono::time_point<std::chrono::steady_clock> TimePoint;
+    TimePoint m_orig;
+    static TimePoint o_now;
+};
+
+#endif /* _CHRONO_H_ */