Initial check in of misc utilities.

src/utils.cpp

@@ -0,0 +1,22 @@
+#include "utils.h"
+
+boost::posix_time::ptime ptEpoch()
+{
+	return boost::posix_time::ptime(boost::gregorian::date(2000, boost::gregorian::Jan, 1));
+}
+
+int iToSeconds(boost::posix_time::ptime ptWhen)
+{
+	return ptWhen.is_not_a_date_time()
+		? -1
+		: (ptWhen-ptEpoch()).total_seconds();
+}
+
+boost::posix_time::ptime ptFromSeconds(int iSeconds)
+{
+	return iSeconds < 0
+		? boost::posix_time::ptime(boost::posix_time::not_a_date_time)
+		: ptEpoch() + boost::posix_time::seconds(iSeconds);
+}
+
+// vim:ts=4

src/utils.h

@@ -0,0 +1,12 @@
+#ifndef __UTILS__
+#define __UTILS__
+
+#include <boost/date_time/posix_time/posix_time.hpp>
+
+#define nothing()   do {} while (0)
+
+boost::posix_time::ptime ptEpoch();
+int iToSeconds(boost::posix_time::ptime ptWhen);
+boost::posix_time::ptime ptFromSeconds(int iSeconds);
+
+#endif