BUG: UListIO: byteSize overflowing on really big faceLists
[OpenFOAM-2.0.x.git] / src / OSspecific / POSIX / cpuTime / cpuTime.C
blobbf295b1853ebcb8774637bf80638d99fb19c268b
1 /*---------------------------------------------------------------------------*\
2   =========                 |
3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
4    \\    /   O peration     |
5     \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
6      \\/     M anipulation  |
7 -------------------------------------------------------------------------------
8 License
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
13     the Free Software Foundation, either version 3 of the License, or
14     (at your 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
19     for more details.
21     You should have received a copy of the GNU General Public License
22     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
24 \*---------------------------------------------------------------------------*/
26 #include "cpuTime.H"
27 #include <unistd.h>
29 // * * * * * * * * * * * * * * * Static Members  * * * * * * * * * * * * * * //
31 const long Foam::cpuTime::Hz_(sysconf(_SC_CLK_TCK));
34 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
36 void Foam::cpuTime::getTime(timeType& t)
38     times(&t);
42 double Foam::cpuTime::timeDifference(const timeType& beg, const timeType& end)
44     return
45     (
46         double
47         (
48             (end.tms_utime + end.tms_stime)
49           - (beg.tms_utime + beg.tms_stime)
50         )/Hz_
51     );
55 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
57 Foam::cpuTime::cpuTime()
59     getTime(startTime_);
60     lastTime_ = startTime_;
61     newTime_ = startTime_;
65 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
67 double Foam::cpuTime::elapsedCpuTime() const
69     getTime(newTime_);
70     return timeDifference(startTime_, newTime_);
74 double Foam::cpuTime::cpuTimeIncrement() const
76     lastTime_ = newTime_;
77     getTime(newTime_);
78     return timeDifference(lastTime_, newTime_);
82 // ************************************************************************* //