00001 // -*- C++ -*- 00002 /*************************************************************************** 00003 * 00004 * The IPPL Framework 00005 * 00006 * 00007 * Visit http://people.web.psi.ch/adelmann/ for more details 00008 * 00009 ***************************************************************************/ 00010 00011 /***************************************************************************/ 00012 /* */ 00013 /* (C) Copyright 1995 The Board of Trustees of the */ 00014 /* University of Illinois */ 00015 /* All Rights Reserved */ 00016 /* */ 00017 /***************************************************************************/ 00018 00019 /*************************************************************************** 00020 * CVS INFORMATION: 00021 * $Id 00022 *************************************************************************** 00023 * DESCRIPTION: 00024 * The Timer class allows for easy timing of the program. The timer 00025 * tracks real (clock) time elapsed, user time, and system time. 00026 * 00027 ***************************************************************************/ 00028 00029 #ifndef TIMER_H 00030 #define TIMER_H 00031 00032 #ifdef __sgi 00033 // make sure this is defined for BSD time routines 00034 #define _BSD_TYPES 00035 // fix a glitch in ANSI compatibility with SGI headers 00036 #define _STAMP_T 00037 #endif 00038 00039 #ifndef __MWERKS__ 00040 // For now, stub out all Timer guts for MetroWerks 00041 00042 #include <unistd.h> 00043 #include <sys/types.h> 00044 #include <sys/times.h> 00045 #include <sys/time.h> 00046 #endif // __MWERKS__ 00047 00048 #ifdef __sgi 00049 // fix a glitch in ANSI compatibility with SGI headers 00050 #undef _STAMP_T 00051 #endif 00052 00053 00054 class Timer 00055 { 00056 public: 00057 Timer(); // Constructor 00058 ~Timer(); // Destructor 00059 void clear(); // Set all accumulated times to 0 00060 void start(); // Start timer 00061 void stop(); // Stop timer 00062 00063 double clock_time(); // Report clock time accumulated in seconds 00064 double user_time(); // Report user time accumlated in seconds 00065 double system_time(); // Report system time accumulated in seconds 00066 double cpu_time() 00067 { 00068 // Report total cpu_time which is just user_time + system_time 00069 return ( user_time() + system_time() ); 00070 } 00071 00072 #ifndef __MWERKS__ 00073 // For now, stub out all Timer guts for MetroWerks 00074 00075 double calibration; // Calibration time: time it takes to 00076 // get in and out of timer functions 00077 private: 00078 short timer_state; // State of timer, either on or off 00079 #ifdef IPPL_XT3 00080 double last_clock; // Previous value from dclock() 00081 double current_clock; // Current value from dclock() 00082 #else 00083 long cpu_speed; // CPU speed for times() call 00084 00085 unsigned long last_secs; // Clock seconds value when the 00086 // timer was last started 00087 long last_usecs; // Clock useconds value when the 00088 // timer was last started 00089 unsigned long last_user_time; // User time when timer was last started 00090 unsigned long last_system_time; // System time when timer was last started 00091 00092 long current_secs; // Current accumulated clock seconds 00093 long current_usecs; // Current accumulated clock useconds 00094 long current_user_time; // Current accumulated user time 00095 long current_system_time; // Current accumulated system time 00096 #endif 00097 00098 #if ( defined(IPPL_T3E) || defined(IPPL_XT3) ) 00099 // don't need these structs 00100 #else 00101 struct tms tmsbuf; // Values from call to times 00102 struct timeval tvbuf; // Values from call to gettimeofday 00103 struct timezone tzbuf; // Timezone values from gettimeofday 00104 // These values aren't used for anything 00105 #endif 00106 00107 #endif // __MWERKS__ 00108 }; 00109 00110 #endif // TIMER_H 00111 00112 /*************************************************************************** 00113 * $RCSfile: Timer.h,v $ $Author: adelmann $ 00114 * $Revision: 1.1.1.1 $ $Date: 2003/01/23 07:40:33 $ 00115 * IPPL_VERSION_ID: $Id: Timer.h,v 1.1.1.1 2003/01/23 07:40:33 adelmann Exp $ 00116 ***************************************************************************/
1.4.6