1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2009 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
11 OpenFOAM is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by the
13 Free Software Foundation; either version 2 of the License, or (at your
14 option) any later version.
16 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 You should have received a copy of the GNU General Public License
22 along with OpenFOAM; if not, write to the Free Software Foundation,
23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 Starts timing CPU usage and return elapsed time from start.
37 \*---------------------------------------------------------------------------*/
43 #include <sys/times.h>
45 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
50 /*---------------------------------------------------------------------------*\
51 Class cpuTime Declaration
52 \*---------------------------------------------------------------------------*/
60 struct tms startTime_;
61 mutable struct tms lastTime_;
62 mutable struct tms newTime_;
64 static void getTime(struct tms& t);
66 static double timeDifference
68 const struct tms& start,
77 //- Construct from components
85 //- Returns CPU time from start of run
86 double elapsedCpuTime() const;
88 //- Returns CPU time from last call of cpuTimeIncrement()
89 double cpuTimeIncrement() const;
93 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
95 } // End namespace Foam
97 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
101 // ************************************************************************* //