1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4SliceTimer.hh,v 1.1 2006/10/23 07:43:31 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03 $ |
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29 | // |
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30 | // |
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31 | // ---------------------------------------------------------------------- |
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32 | // Class G4SliceTimer |
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33 | // |
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34 | // Class description: |
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35 | // |
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36 | // Class for timer objects, able to measure elasped user/system process |
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37 | // accumulated time. |
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38 | // |
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39 | // Note: Uses <sys/times.h> & <unistd.h> - POSIX.1 defined |
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40 | // If used, this header must be included in the source (.cc) file |
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41 | // and it must be the first header file to be included! |
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42 | // |
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43 | // Member functions: |
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44 | // |
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45 | // G4SliceTimer() |
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46 | // Construct a timer object |
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47 | // Start() |
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48 | // Start timing |
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49 | // Stop() |
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50 | // Stop timing |
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51 | // Clear() |
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52 | // Clear accumulated times |
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53 | // G4bool IsValid() |
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54 | // Return true if have a valid time (ie start() and stop() called) |
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55 | // G4double GetRealElapsed() |
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56 | // Return the elapsed real time between last calling start() and stop() |
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57 | // G4double GetSystemElapsed() |
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58 | // Return the elapsed system time between last calling start() and stop() |
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59 | // G4double GetUserElapsed() |
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60 | // Return the elapsed user time between last calling start() and stop() |
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61 | // |
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62 | // Operators: |
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63 | // |
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64 | // std::ostream& operator << (std::ostream& os, const G4SliceTimer& t); |
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65 | // Print the elapsed real,system and usertimes on os. Prints **s for times |
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66 | // if !IsValid |
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67 | // |
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68 | // Member data: |
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69 | // |
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70 | // G4bool fValidTimes |
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71 | // True after start and stop have both been called more than once and |
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72 | // an equal number of times |
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73 | // clock_t fStartRealTime,fEndRealTime |
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74 | // Real times (arbitrary time 0) |
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75 | // tms fStartTimes,fEndTimes |
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76 | // Timing structures (see times(2)) for start and end times |
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77 | |
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78 | // History: |
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79 | // 23.10.06 - M.Asai - Derived from G4Timer implementation |
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80 | // ---------------------------------------------------------------------- |
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81 | #ifndef G4SLICE_TIMER_HH |
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82 | #define G4SLICE_TIMER_HH |
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83 | |
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84 | #ifndef WIN32 |
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85 | # include <unistd.h> |
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86 | # include <sys/times.h> |
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87 | #else |
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88 | # include <time.h> |
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89 | # define _SC_CLK_TCK 1 |
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90 | |
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91 | extern "C" { |
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92 | int sysconf(int); |
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93 | }; |
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94 | |
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95 | // Structure returned by times() |
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96 | |
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97 | struct tms { |
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98 | clock_t tms_utime; /* user time */ |
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99 | clock_t tms_stime; /* system time */ |
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100 | clock_t tms_cutime; /* user time, children */ |
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101 | clock_t tms_cstime; /* system time, children */ |
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102 | }; |
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103 | |
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104 | extern "C" { |
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105 | extern clock_t times(struct tms *); |
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106 | }; |
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107 | #endif /* WIN32 */ |
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108 | |
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109 | #include "G4Types.hh" |
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110 | #include "G4ios.hh" |
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111 | |
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112 | class G4SliceTimer |
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113 | { |
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114 | public: |
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115 | |
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116 | G4SliceTimer(); |
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117 | |
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118 | inline void Start(); |
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119 | inline void Stop(); |
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120 | inline void Clear(); |
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121 | inline G4bool IsValid() const; |
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122 | G4double GetRealElapsed() const; |
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123 | G4double GetSystemElapsed() const; |
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124 | G4double GetUserElapsed() const; |
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125 | |
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126 | private: |
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127 | |
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128 | G4bool fValidTimes; |
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129 | clock_t fStartRealTime,fEndRealTime; |
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130 | tms fStartTimes,fEndTimes; |
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131 | G4double fRealElapsed,fSystemElapsed,fUserElapsed; |
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132 | }; |
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133 | |
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134 | std::ostream& operator << (std::ostream& os, const G4SliceTimer& t); |
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135 | |
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136 | #include "G4SliceTimer.icc" |
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137 | |
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138 | #define times ostimes |
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139 | |
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140 | #endif |
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