WallclockTimer added

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1673 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

src/core/util/WallclockTimer.hpp

@@ -0,0 +1,55 @@
+/** 
+ * \brief The WallclockTimer measures the elapsed time
+ * 
+ * The WallclockTimer measures the time which is elapsed between start and stop of the timer.
+ */
+
+#ifndef __WALLCLOCKTIMER_HPP__
+  #define __WALLCLOCKTIMER_HPP__
+
+#include <string>
+#include <sys/time.h>
+
+#include "Logger.hpp"
+
+namespace fail {
+
+/**
+ * \class WallclockTimer
+ * 
+ * The class WallclockTimer contains all functions for start, stop, reset and to get the elapsed 
+ * time.
+ */
+class WallclockTimer {
+private:
+
+	bool isRunning;
+	struct timeval start,end,current;
+	Logger m_log;
+	
+public:
+	WallclockTimer();
+	virtual ~WallclockTimer() { }
+	/**
+	 *	Starts the timer.
+	 */
+	void startTimer();
+	/**
+	 *	Returns the elapsed time. This works while the timer is running, and if it is stopped.
+	 */
+	std::string getRuntime();
+	/**
+	 *	Stops the timer.
+	 */
+	void stopTimer();
+	/**
+	 *	Resets the timer. The timer is after a call of reset stopped.
+	 */
+	void reset();
+	
+	
+};
+
+} // end-of-namespace: fail
+
+#endif // __WALLCLOCKTIMER_HPP__