1 files changed, 60 insertions, 0 deletions
diff --git a/src/base/TimeSource.h b/src/base/TimeSource.h
new file mode 100644
index 0000000..a4ca9ae
--- /dev/null
+++ b/src/base/TimeSource.h
@@ -0,0 +1,60 @@
+//
+//  libavg - Media Playback Engine. 
+//  Copyright (C) 2003-2014 Ulrich von Zadow
+//
+//  This library 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 of the License, or (at your option) any later version.
+//
+//  This library 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 library; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+//  Current versions can be found at www.libavg.de
+//
+
+#ifndef _TimeSource_H_ 
+#define _TimeSource_H_
+
+#include "../api.h"
+
+#ifdef __APPLE__ 
+#include <mach/mach_time.h>
+#endif
+
+namespace avg {
+
+
+// This class is a monotonic time source with an undefined start time. Time is guarranteed
+// to increase monotonically. The time source has no jumps and does not go backwards,
+// even if system time is changed.
+class AVG_API TimeSource {
+public:
+    static TimeSource* get();
+    virtual ~TimeSource();
+   
+    long long getCurrentMillisecs();
+    long long getCurrentMicrosecs();
+    
+    void sleepUntil(long long targetTime);
+
+private:    
+    TimeSource();
+#ifdef __APPLE__
+    mach_timebase_info_data_t m_TimebaseInfo;
+#endif
+    
+    static TimeSource* m_pTimeSource;
+};
+
+void AVG_API msleep(int millisecs);
+
+}
+
+#endif