00001 /*---------------------------------------------------------------------------*\ 00002 ========= | 00003 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 00004 \\ / O peration | 00005 \\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd. 00006 \\/ M anipulation | 00007 ------------------------------------------------------------------------------- 00008 License 00009 This file is part of OpenFOAM. 00010 00011 OpenFOAM is free software: you can redistribute it and/or modify it 00012 under the terms of the GNU General Public License as published by 00013 the Free Software Foundation, either version 3 of the License, or 00014 (at your option) any later version. 00015 00016 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT 00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00018 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 00019 for more details. 00020 00021 You should have received a copy of the GNU General Public License 00022 along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>. 00023 00024 Class 00025 Foam::clockTimeImpl 00026 00027 Description 00028 Starts timing (using rtc) and returns elapsed time from start. 00029 Better resolution (2uSec instead of ~20mSec) than cpuTime. 00030 00031 This is the platform specific opaque implementation for class clockTime. 00032 00033 SourceFiles 00034 clockTimeImpl.C 00035 00036 \*---------------------------------------------------------------------------*/ 00037 00038 #ifndef clockTimeImpl_H 00039 #define clockTimeImpl_H 00040 00041 #include <sys/types.h> 00042 #ifdef darwin 00043 #include <sys/time.h> 00044 #endif 00045 00046 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00047 00048 namespace Foam 00049 { 00050 00051 /*---------------------------------------------------------------------------*\ 00052 Class clockTime Declaration 00053 \*---------------------------------------------------------------------------*/ 00054 00055 class clockTimeImpl 00056 { 00057 // Private data 00058 00059 struct timeval startTime_; 00060 mutable struct timeval lastTime_; 00061 mutable struct timeval newTime_; 00062 00063 static void getTime(struct timeval& t); 00064 00065 static double timeDifference 00066 ( 00067 const struct timeval& start, 00068 const struct timeval& end 00069 ); 00070 00071 00072 public: 00073 00074 // Constructors 00075 00076 //- Construct from components 00077 clockTimeImpl(); 00078 00079 00080 // Member Functions 00081 00082 // Access 00083 00084 //- Returns CPU time from start of run 00085 double elapsedTime() const; 00086 00087 //- Returns CPU time from last call of clockTimeIncrement() 00088 double timeIncrement() const; 00089 }; 00090 00091 00092 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00093 00094 } // End namespace Foam 00095 00096 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00097 00098 #endif 00099 00100 // ************************ vim: set sw=4 sts=4 et: ************************ //
