Sync changes with AMD miner.

src/common/utils/timestamp.h

@@ -0,0 +1,47 @@
+/* XMRig
+ * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
+ * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
+ * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
+ * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
+ * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2016-2018 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ *
+ *   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 __TIMESTAMP_H__
+#define __TIMESTAMP_H__
+
+
+#include <chrono>
+
+
+namespace xmrig {
+
+
+int64_t currentMSecsSinceEpoch()
+{
+    using namespace std::chrono;
+    if (high_resolution_clock::is_steady) {
+        return time_point_cast<milliseconds>(high_resolution_clock::now()).time_since_epoch().count();
+    }
+
+    return time_point_cast<milliseconds>(steady_clock::now()).time_since_epoch().count();
+}
+
+
+} /* namespace xmrig */
+
+#endif /* __TIMESTAMP_H__ */