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146 lines
3.9 KiB
146 lines
3.9 KiB
// Copyright (C) 2006, 2009 International Business Machines and others.
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// All Rights Reserved.
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// This code is published under the Eclipse Public License.
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//
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// $Id: IpTimedTask.hpp 1861 2010-12-21 21:34:47Z andreasw $
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//
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// Authors: Andreas Waechter IBM 2005-09-19
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#ifndef __IPTIMEDTASK_HPP__
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#define __IPTIMEDTASK_HPP__
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#include "IpUtils.hpp"
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namespace Ipopt
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{
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/** This class is used to collect timing information for a
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* particular task. */
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class TimedTask
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{
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public:
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/**@name Constructors/Destructors */
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//@{
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/** Default constructor. */
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TimedTask()
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:
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total_cputime_(0.),
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total_systime_(0.),
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total_walltime_(0.),
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start_called_(false),
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end_called_(true)
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{}
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/** Default destructor */
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~TimedTask()
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{}
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//@}
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/** Method for resetting time to zero. */
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void Reset()
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{
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total_cputime_ = 0.;
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total_systime_ = 0.;
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total_walltime_ = 0.;
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start_called_ = false;
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end_called_ = true;
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}
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/** Method that is called before execution of the task. */
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void Start()
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{
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DBG_ASSERT(end_called_);
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DBG_ASSERT(!start_called_);
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end_called_ = false;
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start_called_ = true;
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start_cputime_ = CpuTime();
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start_systime_ = SysTime();
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start_walltime_ = WallclockTime();
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}
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/** Method that is called after execution of the task. */
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void End()
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{
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DBG_ASSERT(!end_called_);
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DBG_ASSERT(start_called_);
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end_called_ = true;
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start_called_ = false;
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total_cputime_ += CpuTime() - start_cputime_;
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total_systime_ += SysTime() - start_systime_;
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total_walltime_ += WallclockTime() - start_walltime_;
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}
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/** Method that is called after execution of the task for which
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* timing might have been started. This only updates the timing
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* if the timing has indeed been conducted. This is useful to
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* stop timing after catching exceptions. */
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void EndIfStarted()
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{
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if (start_called_) {
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end_called_ = true;
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start_called_ = false;
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total_cputime_ += CpuTime() - start_cputime_;
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total_systime_ += SysTime() - start_systime_;
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total_walltime_ += WallclockTime() - start_walltime_;
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}
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DBG_ASSERT(end_called_);
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}
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/** Method returning total CPU time spend for task so far. */
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Number TotalCpuTime() const
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{
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DBG_ASSERT(end_called_);
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return total_cputime_;
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}
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/** Method returning total system time spend for task so far. */
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Number TotalSysTime() const
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{
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DBG_ASSERT(end_called_);
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return total_systime_;
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}
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/** Method returning total wall clock time spend for task so far. */
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Number TotalWallclockTime() const
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{
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DBG_ASSERT(end_called_);
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return total_walltime_;
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}
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private:
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/**@name Default Compiler Generated Methods (Hidden to avoid
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* implicit creation/calling). These methods are not
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* implemented and we do not want the compiler to implement them
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* for us, so we declare them private and do not define
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* them. This ensures that they will not be implicitly
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* created/called. */
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//@{
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/** Copy Constructor */
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TimedTask(const TimedTask&);
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/** Overloaded Equals Operator */
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void operator=(const TimedTask&);
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//@}
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/** CPU time at beginning of task. */
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Number start_cputime_;
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/** Total CPU time for task measured so far. */
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Number total_cputime_;
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/** System time at beginning of task. */
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Number start_systime_;
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/** Total system time for task measured so far. */
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Number total_systime_;
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/** Wall clock time at beginning of task. */
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Number start_walltime_;
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/** Total wall clock time for task measured so far. */
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Number total_walltime_;
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/** @name fields for debugging */
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//@{
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bool start_called_;
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bool end_called_;
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//@}
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};
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} // namespace Ipopt
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#endif
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