105 lines
2.0 KiB
C++
105 lines
2.0 KiB
C++
// Copyright (C) 2008-2015 National ICT Australia (NICTA)
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// -------------------------------------------------------------------
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//
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// Written by Conrad Sanderson - http://conradsanderson.id.au
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//! \addtogroup wall_clock
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//! @{
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inline
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wall_clock::wall_clock()
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: valid(false)
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{
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arma_extra_debug_sigprint();
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}
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inline
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wall_clock::~wall_clock()
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{
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arma_extra_debug_sigprint();
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}
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inline
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void
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wall_clock::tic()
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{
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arma_extra_debug_sigprint();
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#if defined(ARMA_USE_CXX11) && !defined(ARMA_DONT_USE_CXX11_CHRONO)
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{
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chrono_time1 = std::chrono::steady_clock::now();
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valid = true;
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}
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#elif defined(ARMA_HAVE_GETTIMEOFDAY)
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{
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gettimeofday(&posix_time1, 0);
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valid = true;
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}
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#else
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{
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time1 = std::clock();
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valid = true;
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}
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#endif
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}
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inline
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double
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wall_clock::toc()
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{
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arma_extra_debug_sigprint();
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if(valid)
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{
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#if defined(ARMA_USE_CXX11) && !defined(ARMA_DONT_USE_CXX11_CHRONO)
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{
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const std::chrono::steady_clock::time_point chrono_time2 = std::chrono::steady_clock::now();
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typedef std::chrono::duration<double> duration_type;
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const duration_type chrono_span = std::chrono::duration_cast< duration_type >(chrono_time2 - chrono_time1);
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return chrono_span.count();
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}
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#elif defined(ARMA_HAVE_GETTIMEOFDAY)
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{
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gettimeofday(&posix_time2, 0);
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const double tmp_time1 = posix_time1.tv_sec + posix_time1.tv_usec * 1.0e-6;
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const double tmp_time2 = posix_time2.tv_sec + posix_time2.tv_usec * 1.0e-6;
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return tmp_time2 - tmp_time1;
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}
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#else
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{
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std::clock_t time2 = std::clock();
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std::clock_t diff = time2 - time1;
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return double(diff) / double(CLOCKS_PER_SEC);
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}
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#endif
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}
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else
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{
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return 0.0;
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}
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}
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//! @}
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