Initial commit

src/gettime.h

@@ -0,0 +1,64 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <ctime>
+#include <string>
+#include <mutex>
+
+enum TimePrecision
+{
+	PRECISION_SECONDS,
+	PRECISION_MILLI,
+	PRECISION_MICRO,
+	PRECISION_NANO
+};
+
+inline struct tm mt_localtime()
+{
+	// initialize the time zone on first invocation
+	static std::once_flag tz_init;
+	std::call_once(tz_init, [] {
+#ifdef _WIN32
+		_tzset();
+#else
+		tzset();
+#endif
+		});
+
+	struct tm ret;
+	time_t t = time(NULL);
+	// TODO we should check if the function returns NULL, which would mean error
+#ifdef _WIN32
+	localtime_s(&ret, &t);
+#else
+	localtime_r(&t, &ret);
+#endif
+	return ret;
+}
+
+
+inline std::string getTimestamp()
+{
+	const struct tm tm = mt_localtime();
+	char cs[20]; // YYYY-MM-DD HH:MM:SS + '\0'
+	strftime(cs, 20, "%Y-%m-%d %H:%M:%S", &tm);
+	return cs;
+}