comparison armadillo-2.4.4/include/armadillo_bits/wall_clock_meat.hpp @ 0:8b6102e2a9b0

Armadillo Library

+// Copyright (C) 2008-2012 NICTA (www.nicta.com.au)
+// Copyright (C) 2008-2012 Conrad Sanderson
+// 
+// This file is part of the Armadillo C++ library.
+// It is provided without any warranty of fitness
+// for any purpose. You can redistribute this file
+// and/or modify it under the terms of the GNU
+// Lesser General Public License (LGPL) as published
+// by the Free Software Foundation, either version 3
+// of the License or (at your option) any later version.
+// (see http://www.opensource.org/licenses for more info)
+
+
+//! \addtogroup wall_clock
+//! @{
+
+
+inline
+wall_clock::wall_clock()
+  : valid(false)
+  {
+  arma_extra_debug_sigprint();
+  }
+
+
+
+inline
+wall_clock::~wall_clock()
+  {
+  arma_extra_debug_sigprint();
+  }
+
+
+
+inline
+void
+wall_clock::tic()
+  {
+  arma_extra_debug_sigprint();
+  
+  #if defined(ARMA_USE_BOOST_DATE)
+    {
+    boost_time1 = boost::posix_time::microsec_clock::local_time();
+    valid = true;
+    }
+  #elif defined(ARMA_HAVE_GETTIMEOFDAY)
+    {
+    gettimeofday(&posix_time1, 0);
+    valid = true;
+    }
+  #else
+    {
+    time1 = clock();
+    valid = true;
+    }
+  #endif
+  }
+
+
+
+inline
+double
+wall_clock::toc()
+  {
+  arma_extra_debug_sigprint();
+  
+  if(valid)
+    {
+    #if defined(ARMA_USE_BOOST_DATE)
+      {
+      boost_duration = boost::posix_time::microsec_clock::local_time() - boost_time1;
+      return boost_duration.total_microseconds() * 1e-6;
+      }
+    #elif defined(ARMA_HAVE_GETTIMEOFDAY)
+      {
+      gettimeofday(&posix_time2, 0);
+      
+      const double tmp_time1 = posix_time1.tv_sec + posix_time1.tv_usec * 1.0e-6;
+      const double tmp_time2 = posix_time2.tv_sec + posix_time2.tv_usec * 1.0e-6;
+      
+      return tmp_time2 - tmp_time1;
+      }
+    #else
+      {
+      clock_t time2 = clock();
+      
+      clock_t diff = time2 - time1;
+      
+      return double(diff) / double(CLOCKS_PER_SEC);
+      }
+    #endif
+    }
+  else
+    {  
+    return 0.0;
+    }
+  }
+
+
+
+//! @}
+