1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2008 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 (using rtc) and returns elapsed time from start.
30 Better resolution (2uSec instead of ~20mSec) than cpuTime.
32 This is the platform specific opaque implementation for class clockTime.
37 \*---------------------------------------------------------------------------*/
39 #ifndef clockTimeImpl_H
40 #define clockTimeImpl_H
42 #include <sys/types.h>
44 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
49 /*---------------------------------------------------------------------------*\
50 Class clockTime Declaration
51 \*---------------------------------------------------------------------------*/
57 struct timeval startTime_;
58 mutable struct timeval lastTime_;
59 mutable struct timeval newTime_;
61 static void getTime(struct timeval& t);
63 static double timeDifference
65 const struct timeval& start,
66 const struct timeval& end
74 //- Construct from components
82 //- Returns CPU time from start of run
83 double elapsedTime() const;
85 //- Returns CPU time from last call of clockTimeIncrement()
86 double timeIncrement() const;
90 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
92 } // End namespace Foam
94 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
98 // ************************************************************************* //