Sirikata
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00001 /* Sirikata 00002 * Timer.hpp 00003 * 00004 * Copyright (c) 2009, Ewen Cheslack-Postava 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions are 00009 * met: 00010 * * Redistributions of source code must retain the above copyright 00011 * notice, this list of conditions and the following disclaimer. 00012 * * Redistributions in binary form must reproduce the above copyright 00013 * notice, this list of conditions and the following disclaimer in 00014 * the documentation and/or other materials provided with the 00015 * distribution. 00016 * * Neither the name of Sirikata nor the names of its contributors may 00017 * be used to endorse or promote products derived from this software 00018 * without specific prior written permission. 00019 * 00020 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 00021 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 00022 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00023 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 00024 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00025 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00026 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00027 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00028 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00029 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00030 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00031 */ 00032 00033 #ifndef _SIRIKATA_TIMER_HPP_ 00034 #define _SIRIKATA_TIMER_HPP_ 00035 00036 #include <sirikata/core/util/Platform.hpp> 00037 #include <sirikata/core/util/AtomicTypes.hpp> 00038 #include <sirikata/core/util/Time.hpp> 00039 00040 namespace Sirikata { 00041 00042 struct TimerImpl; 00043 00044 class SIRIKATA_EXPORT Timer { 00045 static Sirikata::AtomicValue<Duration> sOffset; 00046 00047 public: 00053 static void sleep(const Duration& dt); 00054 00055 static void setSystemClockOffset(const Duration &skew); 00056 static Duration getSystemClockOffset(); 00057 static Time getSpecifiedDate(const std::string&datestring); 00058 // Get offset to convert local time (the standard for most of this API) to UTC. 00059 static Duration getUTCOffset(); 00060 00065 static String nowAsString(); 00066 00071 static String nowUTCAsString(); 00072 00073 Timer(); 00074 ~Timer(); 00075 00076 void start(); 00077 Time getTimerStarted()const; 00078 static Time now(); 00083 static Time recentNow(); 00084 00086 static Duration processElapsed(); 00092 static Duration recentProcessElapsed(); 00093 00094 Duration elapsed()const; 00095 00096 private: 00097 TimerImpl* mStart; 00098 }; // class Timer 00099 00100 } // namespace Sirikata 00101 00102 #endif //_SIRIKATA_TIMER_HPP_