GeoTessCPP
2.0.0
Software to facilitate storage and retrieval of 3D information about the Earth.
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00001 //- **************************************************************************** 00002 //- 00003 //- Copyright 2009 Sandia Corporation. Under the terms of Contract 00004 //- DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government 00005 //- retains certain rights in this software. 00006 //- 00007 //- BSD Open Source License. 00008 //- All rights reserved. 00009 //- 00010 //- Redistribution and use in source and binary forms, with or without 00011 //- modification, are permitted provided that the following conditions are met: 00012 //- 00013 //- * Redistributions of source code must retain the above copyright notice, 00014 //- this list of conditions and the following disclaimer. 00015 //- * Redistributions in binary form must reproduce the above copyright 00016 //- notice, this list of conditions and the following disclaimer in the 00017 //- documentation and/or other materials provided with the distribution. 00018 //- * Neither the name of Sandia National Laboratories nor the names of its 00019 //- contributors may be used to endorse or promote products derived from 00020 //- this software without specific prior written permission. 00021 //- 00022 //- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00023 //- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00024 //- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00025 //- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 00026 //- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00027 //- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00028 //- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00029 //- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00030 //- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00031 //- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00032 //- POSSIBILITY OF SUCH DAMAGE. 00033 //- 00034 //- **************************************************************************** 00035 00036 #ifndef CPU_TIMER_H 00037 #define CPU_TIMER_H 00038 00039 // **** _SYSTEM INCLUDES_ ****************************************************** 00040 00041 #include <ctime> 00042 00043 // use standard library objects 00044 using namespace std; 00045 00046 // **** _LOCAL INCLUDES_ ******************************************************* 00047 00048 #include "CPPUtils.h" 00049 00050 // **** _BEGIN GEOTESS NAMESPACE_ ********************************************** 00051 00052 namespace geotess { 00053 00054 // **** _FORWARD REFERENCES_ *************************************************** 00055 00056 // **** _CLASS DEFINITION_ ***************************************************** 00057 00064 class GEOTESS_EXP_IMP CpuTimer 00065 { 00066 private: 00067 00068 // Last real time set when init_timer was called or 'this' CpuTimer was 00069 // constructed (msec) 00070 double cpuRealTime; 00071 00072 // Last cpu time set when init_timer was called or 'this' CpuTimer was 00073 // constructed (msec) 00074 double cpuCPUTime; 00075 00076 public: 00077 00078 // Default constructor initialies timer 00079 CpuTimer(); 00080 00081 // Initializes timer 00082 void initTimer(); 00083 00087 static double getCurrCPUTime() 00088 { return (double) 1000.0 * clock() / CLOCKS_PER_SEC; } 00089 00093 static double getCurrRealTime() 00094 { return (double) 1000.0 * time(NULL); } 00095 00096 // Returns cpu time (ms) since last init_timer call. The second 00097 // function also reinitializes cpuCPUTime. 00098 double cpuTime(); 00099 double cpuTimeInit(); 00100 00101 // Returns real time (ms) since last init_timer call. The second 00102 // function also reinitializes cpuRealTime. 00103 double realTime(); 00104 double realTimeInit(); 00105 00106 // Static elapsed time string output functions given an input elapsed 00107 // time in msec. 00108 static string elapsedTimeString(double tm); 00109 static string elapsedTimeStringFraction(double tm); 00110 static string elapsedTimeStringFractionAbbrvUnits(double tm); 00111 00112 // Returns the current time string 00113 static string now(); 00114 }; 00115 00116 } // end namespace geotess 00117 00118 #endif // CPU_TIMER_H