89 lines
2.0 KiB
C++
89 lines
2.0 KiB
C++
// Copyright (c) 2010-2025, Lawrence Livermore National Security, LLC. Produced
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// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
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// LICENSE and NOTICE for details. LLNL-CODE-806117.
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//
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// This file is part of the MFEM library. For more information and source code
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// availability visit https://mfem.org.
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//
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// MFEM is free software; you can redistribute it and/or modify it under the
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// terms of the BSD-3 license. We welcome feedback and contributions, see file
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// CONTRIBUTING.md for details.
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#ifndef MFEM_TIC_TOC
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#define MFEM_TIC_TOC
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#include "../config/config.hpp"
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#include <memory>
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#ifndef MFEM_TIMER_TYPE
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#ifndef _WIN32
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#define MFEM_TIMER_TYPE 0
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#else
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#define MFEM_TIMER_TYPE 3
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#endif
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#endif
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namespace mfem
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{
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namespace internal
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{
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class StopWatch;
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}
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/// Timing object
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class StopWatch
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{
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private:
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std::unique_ptr<internal::StopWatch> M; ///< Pointer to implementation.
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public:
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/// Creates a new (stopped) StopWatch object.
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StopWatch();
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StopWatch(const StopWatch &);
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/// Clear the elapsed time on the stopwatch and restart it if it's running.
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void Clear();
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/// Start the stopwatch. The elapsed time is @b not cleared.
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void Start();
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/// Stop the stopwatch.
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void Stop();
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/// @brief Clears and restarts the stopwatch. Equivalent to Clear() followed by
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/// Start().
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void Restart();
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/// Return the time resolution available to the stopwatch.
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double Resolution();
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/// @brief Return the number of real seconds elapsed since the stopwatch was
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/// started.
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double RealTime();
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/// @brief Return the number of user seconds elapsed since the stopwatch was
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/// started.
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double UserTime();
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/// @brief Return the number of system seconds elapsed since the stopwatch
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/// was started.
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double SystTime();
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/// Default destructor.
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~StopWatch();
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};
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extern MFEM_EXPORT StopWatch tic_toc;
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/// Start the tic_toc timer
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extern void tic();
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/// End timing and return the time from tic() to toc() in seconds.
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extern double toc();
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}
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#endif
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