102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
/*
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* Copyright (C) 2012 Open Source Robotics Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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/* Desc: A timer class
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* Author: Nate Koenig
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* Date: 22 Nov 2009
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*/
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#ifndef _TIMER_HH_
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#define _TIMER_HH_
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#include "gazebo/common/Console.hh"
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#include "gazebo/common/Time.hh"
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#include "gazebo/util/system.hh"
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namespace gazebo
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{
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namespace common
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{
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/// \addtogroup gazebo_common
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/// \{
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/// \class Timer Timer.hh common/common.hh
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/// \brief A timer class, used to time things in real world walltime
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class GZ_COMMON_VISIBLE Timer
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{
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/// \brief Default constructor
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public: Timer();
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/// \brief Countdown constructor
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/// \param[in] _maxTime The time to count down from.
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/// \param[in] _countdown. Whether or not to count down. True by default
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/// if this constructor is used.
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public: Timer(const Time &_maxTime, const bool _countdown = true);
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/// \brief Destructor
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public: virtual ~Timer();
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/// \brief Start the timer
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public: virtual void Start();
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/// \brief Stop the timer
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public: virtual void Stop();
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/// \brief Returns true if the timer is running.
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/// \return Tue if the timer has been started and not stopped.
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public: bool GetRunning() const;
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/// \brief Get the elapsed time
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/// \return The time
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public: Time GetElapsed() const;
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/// \brief Reset the timer
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public: void Reset();
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/// \brief Stream operator friendly
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public: friend std::ostream &operator<<(std::ostream &out,
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const gazebo::common::Timer &t)
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{
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out << t.GetElapsed();
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return out;
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}
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/// \brief True if a reset is needed.
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private: bool reset;
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/// \brief True if the timer is running.
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private: bool running;
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/// \brief True if the timer is counting down, false otherwise.
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/// False by default.
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private: bool countdown;
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/// \brief The time of the last call to Start
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private: Time start;
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/// \brief The time when Stop was called.
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private: Time stop;
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/// \brief Maximum time, only used in countdown.
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private: Time maxTime;
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};
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/// \}
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}
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}
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#endif
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