1 files changed, 67 insertions, 0 deletions
diff --git a/src/common/include/gudhi/Clock.h b/src/common/include/gudhi/Clock.h
new file mode 100644
index 00000000..ea21659e
--- /dev/null
+++ b/src/common/include/gudhi/Clock.h
@@ -0,0 +1,67 @@
+/*
+ * Clock.h
+ *
+ *  Created on: Jun 17, 2014
+ *      Author: dsalinas
+ */
+
+#ifndef GUDHI_CLOCK_H_
+#define GUDHI_CLOCK_H_
+
+
+#include <boost/date_time/posix_time/posix_time.hpp>
+
+class Clock{
+
+public:
+	Clock():end_called(false){
+		startTime = boost::posix_time::microsec_clock::local_time( );
+	}
+
+	Clock(const std::string& msg_){
+		end_called = false;
+		begin();
+		msg = msg_;
+	}
+
+
+	void begin() const{
+		end_called = false;
+		startTime = boost::posix_time::microsec_clock::local_time( );
+	}
+
+	void end() const{
+		end_called = true;
+		endTime = boost::posix_time::microsec_clock::local_time( );
+	}
+
+	void print() const{
+		std::cout << *this << std::endl;
+	}
+
+	friend std::ostream& operator<< (std::ostream& stream,const Clock& clock){
+		if(!clock.end_called)
+			clock.end();
+
+		if(!clock.end_called) stream << "end not called";
+		else{
+			stream << clock.msg <<":"<<clock.num_seconds() <<"s";
+		}
+		return stream;
+
+	}
+
+	double num_seconds() const{
+		if(!end_called) return -1;
+		return (endTime-startTime).total_milliseconds()/1000.;
+	}
+
+private:
+	mutable boost::posix_time::ptime startTime, endTime;
+	mutable bool end_called;
+	std::string msg;
+
+};
+
+
+#endif /* GUDHI_CLOCK_H_ */