lemon-1.2: comparison lemon/time

equal deleted inserted replaced

-:09cc538bc621
+:736d7ffcb70d
-/* -*- C++ -*-
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
 *
-* This file is a part of LEMON, a generic C++ optimization library
+* This file is a part of LEMON, a generic C++ optimization library.
 *
 * Copyright (C) 2003-2008
 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 * (Egervary Research Group on Combinatorial Optimization, EGRES).
 *
 double utime;
 double stime;
 double cutime;
 double cstime;
 double rtime;
 void _reset() {
 utime = stime = cutime = cstime = rtime = 0;
 }
 public:
 GetSystemTimeAsFileTime(&system);
 rtime = ch * system.dwHighDateTime + cl * system.dwLowDateTime;
 FILETIME create, exit, kernel, user;
 if (GetProcessTimes(GetCurrentProcess(),&create, &exit, &kernel, &user)) {
-	utime = ch * user.dwHighDateTime + cl * user.dwLowDateTime;
+utime = ch * user.dwHighDateTime + cl * user.dwLowDateTime;
-	stime = ch * kernel.dwHighDateTime + cl * kernel.dwLowDateTime;
+stime = ch * kernel.dwHighDateTime + cl * kernel.dwLowDateTime;
-	cutime = 0;
+cutime = 0;
-	cstime = 0;
+cstime = 0;
 } else {
-	rtime = 0;
+rtime = 0;
-	utime = 0;
+utime = 0;
-	stime = 0;
+stime = 0;
-	cutime = 0;
+cutime = 0;
-	cstime = 0;
+cstime = 0;
 }
 #endif
 }
 /// Constructor initializing with zero
 TimeStamp()
 { _reset(); }
 ///Constructor initializing with the current time values of the process
 TimeStamp(void *) { stamp();}
 ///Set every time value to zero
 TimeStamp &reset() {_reset();return *this;}
 ///\e
 TimeStamp &operator+=(const TimeStamp &b)
 TimeStamp ellapsed() const
 {
 TimeStamp t(NULL);
 return t-*this;
 }
 friend std::ostream& operator<<(std::ostream& os,const TimeStamp &t);
 ///Gives back the user time of the process
 double userTime() const
 {
 return utime;
 }
 {
 return stime;
 }
 ///Gives back the user time of the process' children
 ///\note On <tt>WIN32</tt> platform this value is not calculated.
 ///
 double cUserTime() const
 {
 return cutime;
 }
 ///Gives back the user time of the process' children
 ///\note On <tt>WIN32</tt> platform this value is not calculated.
 ///
 double cSystemTime() const
 {
 return cstime;
 }
 ///Gives back the real time
 double realTime() const {return rtime;}
 };
 TimeStamp operator*(double b,const TimeStamp &t)
 {
 return t*b;
 }
 ///Prints the time counters
 ///Prints the time counters in the following form:
 ///
 /// <tt>u: XX.XXs s: XX.XXs cu: XX.XXs cs: XX.XXs real: XX.XXs</tt>
 class Timer
 {
 int _running; //Timer is running iff _running>0; (_running>=0 always holds)
 TimeStamp start_time; //This is the relativ start-time if the timer
 //is _running, the collected _running time otherwise.
 void _reset() {if(_running) start_time.stamp(); else start_time.reset();}
 public:
 ///Constructor.
 ///\param run indicates whether or not the timer starts immediately.
 ///
 Timer(bool run=true) :_running(run) {_reset();}
 _running=0;
 _reset();
 }
 ///Start the time counters
 ///This function starts the time counters.
 ///
 ///If the timer is started more than ones, it will remain running
 ///until the same amount of \ref stop() is called.
 ///\sa stop()
 void start()
 {
 if(_running) _running++;
 else {
-	_running=1;
+_running=1;
-	TimeStamp t;
+TimeStamp t;
-	t.stamp();
+t.stamp();
-	start_time=t-start_time;
+start_time=t-start_time;
 }
 }
 ///Stop the time counters
 ///This function stops the time counters. If start() was executed more than
 ///once, then the same number of stop() execution is necessary the really
 ///stop the timer.
 ///
 ///\sa halt()
 ///\sa start()
 ///\sa restart()
 ///\sa reset()
 void stop()
 {
 if(_running && !--_running) {
-	TimeStamp t;
+TimeStamp t;
-	t.stamp();
+t.stamp();
-	start_time=t-start_time;
+start_time=t-start_time;
 }
 }
 ///Halt (i.e stop immediately) the time counters
 ///
 ///\sa stop()
 ///\sa restart()
 ///\sa reset()
 void halt()
 {
 if(_running) {
-	_running=0;
+_running=0;
-	TimeStamp t;
+TimeStamp t;
-	t.stamp();
+t.stamp();
-	start_time=t-start_time;
+start_time=t-start_time;
 }
 }
 ///Returns the running state of the timer
 ///For example the timer
 ///is running if and only if the return value is \c true
 ///(i.e. greater than
 ///zero).
 int running()  { return _running; }
 ///Restart the time counters
 ///This function is a shorthand for
 ///a reset() and a start() calls.
 ///
 void restart()
 {
 reset();
 start();
 }
 ///@}
 ///\name Query Functions for the ellapsed time
 ///@{
 {
 return operator TimeStamp().systemTime();
 }
 ///Gives back the ellapsed user time of the process' children
 ///\note On <tt>WIN32</tt> platform this value is not calculated.
 ///
 double cUserTime() const
 {
 return operator TimeStamp().cUserTime();
 }
 ///Gives back the ellapsed user time of the process' children
 ///\note On <tt>WIN32</tt> platform this value is not calculated.
 ///
 double cSystemTime() const
 {
 return operator TimeStamp().cSystemTime();
 }
 ///\endcode
 ///
 ///\sa Timer
 ///\sa NoTimeReport
 ///\todo There is no test case for this
 class TimeReport : public Timer
 {
 std::string _title;
 std::ostream &_os;
 public:
 ///\e
 ///\param title This text will be printed before the ellapsed time.
 ///\param os The stream to print the report to.
 ///\param run Sets whether the timer should start immediately.
 TimeReport(std::string title,std::ostream &os=std::cerr,bool run=true)
 : Timer(run), _title(title), _os(os){}
 ///\e Prints the ellapsed time on destruction.
 ~TimeReport()
 {
 _os << _title << *this << std::endl;
 }
 };
 ///'Do nothing' version of \ref TimeReport
 ///\sa TimeReport
 ///
 class NoTimeReport
 operator TimeStamp () const { return TimeStamp(); }
 void reset() {}
 void start() {}
 void stop() {}
 void halt() {}
 int running() { return 0; }
 void restart() {}
 double userTime() const { return 0; }
 double systemTime() const { return 0; }
 double cUserTime() const { return 0; }
 double cSystemTime() const { return 0; }
 double realTime() const { return 0; }
 };
 ///Tool to measure the running time more exactly.
 ///This function calls \c f several times and returns the average
 ///running time. The number of the executions will be choosen in such a way
 ///that the full real running time will be roughly between \c min_time
 ///and <tt>2*min_time</tt>.
 ///\param f the function object to be measured.
 ///\retval num if it is not \c NULL, then the actual
 ///        number of execution of \c f will be written into <tt>*num</tt>.
 ///\retval full_time if it is not \c NULL, then the actual
 ///        total running time will be written into <tt>*full_time</tt>.
 ///\return The average running time of \c f.
 template<class F>
 TimeStamp runningTimeTest(F f,double min_time=10,unsigned int *num = NULL,
 TimeStamp *full_time=NULL)
 {
 TimeStamp full;
 }
 if(num) *num=total;
 if(full_time) *full_time=full;
 return full/total;
 }
 /// @}
 } //namespace lemon
 #endif //LEMON_TIME_MEASURE_H

changeset 209	765619b7cbb2
parent 157	2ccc1afc2c52
child 210	81cfc04531e8