Chris@49: // Copyright (C) 2008-2012 NICTA (www.nicta.com.au)
Chris@49: // Copyright (C) 2008-2012 Conrad Sanderson
Chris@49: // 
Chris@49: // This Source Code Form is subject to the terms of the Mozilla Public
Chris@49: // License, v. 2.0. If a copy of the MPL was not distributed with this
Chris@49: // file, You can obtain one at http://mozilla.org/MPL/2.0/.
Chris@49: 
Chris@49: 
Chris@49: //! \addtogroup wall_clock
Chris@49: //! @{
Chris@49: 
Chris@49: 
Chris@49: inline
Chris@49: wall_clock::wall_clock()
Chris@49:   : valid(false)
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: inline
Chris@49: wall_clock::~wall_clock()
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: inline
Chris@49: void
Chris@49: wall_clock::tic()
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   #if defined(ARMA_USE_BOOST_DATE)
Chris@49:     {
Chris@49:     boost_time1 = boost::posix_time::microsec_clock::local_time();
Chris@49:     valid = true;
Chris@49:     }
Chris@49:   #elif defined(ARMA_HAVE_GETTIMEOFDAY)
Chris@49:     {
Chris@49:     gettimeofday(&posix_time1, 0);
Chris@49:     valid = true;
Chris@49:     }
Chris@49:   #else
Chris@49:     {
Chris@49:     time1 = clock();
Chris@49:     valid = true;
Chris@49:     }
Chris@49:   #endif
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: inline
Chris@49: double
Chris@49: wall_clock::toc()
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   if(valid)
Chris@49:     {
Chris@49:     #if defined(ARMA_USE_BOOST_DATE)
Chris@49:       {
Chris@49:       boost_duration = boost::posix_time::microsec_clock::local_time() - boost_time1;
Chris@49:       return boost_duration.total_microseconds() * 1e-6;
Chris@49:       }
Chris@49:     #elif defined(ARMA_HAVE_GETTIMEOFDAY)
Chris@49:       {
Chris@49:       gettimeofday(&posix_time2, 0);
Chris@49:       
Chris@49:       const double tmp_time1 = posix_time1.tv_sec + posix_time1.tv_usec * 1.0e-6;
Chris@49:       const double tmp_time2 = posix_time2.tv_sec + posix_time2.tv_usec * 1.0e-6;
Chris@49:       
Chris@49:       return tmp_time2 - tmp_time1;
Chris@49:       }
Chris@49:     #else
Chris@49:       {
Chris@49:       clock_t time2 = clock();
Chris@49:       
Chris@49:       clock_t diff = time2 - time1;
Chris@49:       
Chris@49:       return double(diff) / double(CLOCKS_PER_SEC);
Chris@49:       }
Chris@49:     #endif
Chris@49:     }
Chris@49:   else
Chris@49:     {  
Chris@49:     return 0.0;
Chris@49:     }
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! @}
Chris@49: