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101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 1991-2009 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::cpuTime
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Description
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Starts timing CPU usage and return elapsed time from start.
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SeeAlso
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clockTime
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SourceFiles
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cpuTime.C
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\*---------------------------------------------------------------------------*/
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#ifndef cpuTime_H
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#define cpuTime_H
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#include <time.h>
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#include <sys/times.h>
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class cpuTime Declaration
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\*---------------------------------------------------------------------------*/
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class cpuTime
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{
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// Private data
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static long Hz_;
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struct tms startTime_;
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mutable struct tms lastTime_;
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mutable struct tms newTime_;
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static void getTime(struct tms& t);
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static double timeDifference
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(
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const struct tms& start,
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const struct tms& end
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);
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public:
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// Constructors
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//- Construct from components
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cpuTime();
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// Member Functions
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// Access
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//- Returns CPU time from start of run
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double elapsedCpuTime() const;
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//- Returns CPU time from last call of cpuTimeIncrement()
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double cpuTimeIncrement() const;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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