mitk: mitkLinuxRealTimeClock.cpp Source File

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00001 /*=========================================================================
00002 
00003 Program:   Medical Imaging & Interaction Toolkit
00004 Language:  C++
00005 Date:      $Date: 2009-02-10 18:08:54 +0100 (Di, 10 Feb 2009) $
00006 Version:   $Revision: 16228 $
00007 
00008 Copyright (c) German Cancer Research Center, Division of Medical and
00009 Biological Informatics. All rights reserved.
00010 See MITKCopyright.txt or https://www.mitk.org/copyright.html for details.
00011 
00012 This software is distributed WITHOUT ANY WARRANTY; without even
00013 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00014 PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 
00018 #include "mitkLinuxRealTimeClock.h"
00019 
00020 #include <sys/time.h>
00021 
00022 
00026 mitk::LinuxRealTimeClock::LinuxRealTimeClock()
00027 {
00028 }
00029 
00033 mitk::LinuxRealTimeClock::~LinuxRealTimeClock()
00034 {
00035 }
00036 
00045 double mitk::LinuxRealTimeClock::GetCurrentStamp()
00046 {
00047   struct timeval tval;
00048 
00049   if ( ::gettimeofday( &tval, 0 )!= 0 )
00050   {
00051     itkGenericOutputMacro("gettimeofday-method could not successfully acquire the current time");
00052     return -1;
00053   }
00054   double milliseconds;
00055 
00056   milliseconds = static_cast< double >( tval.tv_sec ) +
00057     static_cast< double >( tval.tv_usec ) / 1e6;
00058 
00059   return milliseconds*1000; // in milliseconds
00060 }