[136] | 1 | //=====================================================
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| 2 | // File : portable_timer.hh
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| 3 | // Author : L. Plagne <laurent.plagne@edf.fr)> from boost lib
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| 4 | // Copyright (C) EDF R&D, lun sep 30 14:23:17 CEST 2002
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| 5 | //=====================================================
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| 6 | //
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| 7 | // This program is free software; you can redistribute it and/or
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| 8 | // modify it under the terms of the GNU General Public License
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| 9 | // as published by the Free Software Foundation; either version 2
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| 10 | // of the License, or (at your option) any later version.
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| 11 | //
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| 12 | // This program is distributed in the hope that it will be useful,
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| 13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | // GNU General Public License for more details.
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| 16 | // You should have received a copy of the GNU General Public License
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| 17 | // along with this program; if not, write to the Free Software
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| 18 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 19 | //
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| 20 | // simple_time extracted from the boost library
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| 21 | //
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| 22 | #ifndef _PORTABLE_TIMER_HH
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| 23 | #define _PORTABLE_TIMER_HH
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| 24 |
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| 25 | #include <ctime>
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| 26 | #include <cstdlib>
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| 27 |
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| 28 | #include <time.h>
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| 29 |
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| 30 |
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| 31 | #define USEC_IN_SEC 1000000
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| 32 |
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| 33 |
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| 34 | // timer -------------------------------------------------------------------//
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| 35 |
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| 36 | // A timer object measures CPU time.
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| 37 | #ifdef _MSC_VER
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| 38 |
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| 39 | #define NOMINMAX
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| 40 | #include <windows.h>
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| 41 |
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| 42 | /*#ifndef hr_timer
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| 43 | #include "hr_time.h"
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| 44 | #define hr_timer
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| 45 | #endif*/
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| 46 |
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| 47 | class Portable_Timer
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| 48 | {
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| 49 | public:
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| 50 |
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| 51 | typedef struct {
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| 52 | LARGE_INTEGER start;
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| 53 | LARGE_INTEGER stop;
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| 54 | } stopWatch;
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| 55 |
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| 56 |
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| 57 | Portable_Timer()
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| 58 | {
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| 59 | startVal.QuadPart = 0;
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| 60 | stopVal.QuadPart = 0;
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| 61 | QueryPerformanceFrequency(&frequency);
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| 62 | }
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| 63 |
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| 64 | void start() { QueryPerformanceCounter(&startVal); }
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| 65 |
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| 66 | void stop() { QueryPerformanceCounter(&stopVal); }
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| 67 |
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| 68 | double elapsed() {
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| 69 | LARGE_INTEGER time;
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| 70 | time.QuadPart = stopVal.QuadPart - startVal.QuadPart;
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| 71 | return LIToSecs(time);
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| 72 | }
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| 73 |
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| 74 | double user_time() { return elapsed(); }
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| 75 |
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| 76 |
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| 77 | private:
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| 78 |
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| 79 | double LIToSecs(LARGE_INTEGER& L) {
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| 80 | return ((double)L.QuadPart /(double)frequency.QuadPart) ;
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| 81 | }
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| 82 |
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| 83 | LARGE_INTEGER startVal;
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| 84 | LARGE_INTEGER stopVal;
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| 85 | LARGE_INTEGER frequency;
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| 86 |
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| 87 |
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| 88 | }; // Portable_Timer
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| 89 |
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| 90 | #else
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| 91 |
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| 92 | #include <sys/time.h>
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| 93 | #include <sys/resource.h>
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| 94 | #include <unistd.h>
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| 95 | #include <sys/times.h>
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| 96 |
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| 97 | class Portable_Timer
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| 98 | {
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| 99 | public:
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| 100 |
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| 101 | Portable_Timer()
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| 102 | {
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| 103 | m_clkid = BtlConfig::Instance.realclock ? CLOCK_REALTIME : CLOCK_PROCESS_CPUTIME_ID;
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| 104 | }
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| 105 |
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| 106 | Portable_Timer(int clkid) : m_clkid(clkid)
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| 107 | {}
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| 108 |
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| 109 | void start()
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| 110 | {
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| 111 | timespec ts;
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| 112 | clock_gettime(m_clkid, &ts);
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| 113 | m_start_time = double(ts.tv_sec) + 1e-9 * double(ts.tv_nsec);
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| 114 |
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| 115 | }
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| 116 |
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| 117 | void stop()
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| 118 | {
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| 119 | timespec ts;
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| 120 | clock_gettime(m_clkid, &ts);
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| 121 | m_stop_time = double(ts.tv_sec) + 1e-9 * double(ts.tv_nsec);
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| 122 |
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| 123 | }
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| 124 |
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| 125 | double elapsed()
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| 126 | {
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| 127 | return user_time();
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| 128 | }
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| 129 |
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| 130 | double user_time()
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| 131 | {
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| 132 | return m_stop_time - m_start_time;
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| 133 | }
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| 134 |
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| 135 |
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| 136 | private:
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| 137 |
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| 138 | int m_clkid;
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| 139 | double m_stop_time, m_start_time;
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| 140 |
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| 141 | }; // Portable_Timer
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| 142 |
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| 143 | #endif
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| 144 |
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| 145 | #endif // PORTABLE_TIMER_HPP
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