mxmTime.h

00001 //           ///          //                                  C++ Cross Platform
00002 //          /////        ////
00003 //         /// XXX     XXX ///            ///////////   /////////     ///   ///
00004 //        ///    XXX XXX    ///         ///             ///    ///   ///  ///
00005 //       ///       XXX       ///         /////////     ///      //  //////
00006 //      ///      XXX XXX      ///               ///   ///    ///   ///  ///
00007 //     ////    XXX     XXX    ////    ////////////  //////////    ///   ///
00008 //    ////                     ////
00009 //   ////  M  O  B  O  T  I  X  ////////////////////////////////////////////////
00010 //  //// Security Vision Systems //////////////////////////////////////////////
00011 //
00012 //  $Author: khe_admin $
00013 //  $LastChangedBy: khe_admin $
00014 //  $LastChangedDate: 2007-06-29 15:34:53 +0200 (Fri, 29 Jun 2007) $
00015 //  $HeadURL: http://svn.mobotix.net/svn/mxsdk/src/mxm/trunk/include/mxm/core/mxmTime.h $
00016 //
00018      //
00019      //  MOBOTIX MxPEG SDK
00020      //
00021      //  This file belongs to the C++ library released as part of the MxPEG SDK.
00022      //
00023      //  This software is licenced under the BSD licence,
00024      //  http://www.opensource.org/licenses/bsd-license.php
00025      //
00026      //  Copyright (c) 2005 - 2007, MOBOTIX AG
00027      //  All rights reserved.
00028      //
00029      //  Redistribution and use in source and binary forms, with or without
00030      //  modification, are permitted provided that the following conditions are
00031      //  met:
00032      //
00033      //  - Redistributions of source code must retain the above copyright
00034      //    notice, this list of conditions and the following disclaimer.
00035      //
00036      //  - Redistributions in binary form must reproduce the above copyright
00037      //    notice, this list of conditions and the following disclaimer in the
00038      //    documentation and/or other materials provided with the distribution.
00039      //
00040      //  - Neither the name of MOBOTIX AG nor the names of its contributors may
00041      //    be used to endorse or promote products derived from this software
00042      //    without specific prior written permission.
00043      //
00044      //  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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00046      //  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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00055      //
00057 
00058 
00059 
00060 #ifndef __MXM_TIME_H__
00061 #define __MXM_TIME_H__
00062 
00063 
00064 
00065 #include <mxm/core/mxmObject.h>
00066 #include <mxm/core/mxm_types.h>
00067 
00068 #ifdef MX_PLATFORM_WINDOWS
00069   #include <windows.h>
00070   #include <time.h>
00071 #else
00072   #include <sys/time.h>
00073 #endif
00074 
00075 
00076 
00078 
00083 class MXM_CORE_API mxmTime : public mxmObject {
00084   
00085  public:
00086   static mxmTime now(void);
00088   static void initialize();
00090   static mxm::frame_time getTimeSinceInitialization();
00091   
00092  private:
00093   static time_t RefTime;
00094   static bool IsInitialized;
00095   static mxm::frame_time RefTicks;
00096 #ifdef MX_PLATFORM_WINDOWS
00097   static double CounterFrequencyFactor;  // us / ticks
00098   static bool IsPerformanceCounterAvailable;
00099 #else
00100 #endif
00101   mxm::frame_time Time;
00102   void *StableABIDataExtension;
00103   
00104  public:
00106   mxmTime();
00107   mxmTime(const mxmTime &other_time);
00108   
00109  public:
00111   bool operator<(const mxmTime &other) const;
00114   int operator-(const mxmTime &earlier) const;
00116   operator mxm::frame_time() const;
00117   
00118  public:
00121   bool timedOut(const mxmTime &earlier,
00122                 int timeout_ms) const;
00123 };
00124 
00125 
00126 #endif   // __MXM_TIME_H__

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