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/CMakeLists.txt

@@ -12,6 +12,8 @@ set(SRCS
 	SynchronizedCounter.hpp
 	SynchronizedMap.hpp
 	SynchronizedQueue.hpp
+	WallclockTimer.cc
+	WallclockTimer.hpp
 )
 
 # required by ProtoStream.cc:

src/core/util/WallclockTimer.cc

@@ -0,0 +1,77 @@
+#include <iostream>
+#include <string>
+#include <sstream>
+
+#include "WallclockTimer.hpp"
+
+namespace fail {
+
+WallclockTimer::WallclockTimer() {
+	m_log.setDescription("WallclockTimer");
+	m_log.showTime(false);
+	isRunning = false;
+}
+
+void WallclockTimer::startTimer() {
+	if (isRunning) {
+		m_log << "WallclockTimer is already running." << std::endl;
+	} else {
+		isRunning = true;
+		gettimeofday(&start, NULL);
+		m_log << "WallclockTimer started." << std::endl;
+	}
+}
+
+std::string WallclockTimer::getRuntime() {
+	
+	int length;
+	long t1,t2, duration;
+	std::stringstream lengthinfo, resultstring; 
+	
+	if (isRunning) {
+		gettimeofday(&current, NULL);
+		t1 = (start.tv_sec*1000000)+start.tv_usec;
+		t2 = (current.tv_sec*1000000)+current.tv_usec;
+	} else {
+		t1 = (start.tv_sec*1000000)+start.tv_usec;
+		t2 = (end.tv_sec*1000000)+end.tv_usec;
+	}
+	
+	duration = t2-t1;
+	lengthinfo << duration-((duration/1000000)*1000000);
+	length = lengthinfo.str().length();
+	resultstring << (int) duration/1000000 << ".";
+	
+	if (length < 6) {
+		int i;
+		for (i = 0 ; i< 6-length ; i++){
+			resultstring << "0";
+		}
+	}
+	
+	resultstring << (int) duration-((duration/1000000)*1000000);
+	return resultstring.str();
+}
+
+void WallclockTimer::stopTimer() {
+	if (isRunning) {
+		isRunning = false;
+		gettimeofday(&end, NULL);
+		m_log << "WallclockTimer stopped." << std::endl;
+	} else {
+		m_log << "WallclockTimer is already stopped." << std::endl;
+	}
+}
+
+void WallclockTimer::reset() {
+	isRunning = false;
+	start.tv_sec = 0;
+	start.tv_usec = 0;
+	current.tv_sec = 0;
+	current.tv_usec = 0;
+	end.tv_sec = 0;
+	end.tv_usec = 0;
+	m_log << "WallclockTimer reseted." << std::endl;
+}
+
+} // end-of-namespace: fail

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__