Last change
on this file since 10669 was
9658,
checked in by bensch, 18 years ago
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new smooth-allocator class, this is also a test, to see, if my template experience is good enough for the C++ generic Template Programming Lecture
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File size:
1003 bytes
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Line | |
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1 | /** |
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2 | * @file timer.cc |
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3 | * @brief A Timer class, that handles all about time. |
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4 | * |
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5 | * code borrowed from audiere. http://www.audiere.org |
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6 | */ |
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7 | |
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8 | #include "timer.h" |
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9 | |
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10 | |
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11 | #include <time.h> |
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12 | #include <sys/time.h> |
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13 | |
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14 | #ifdef __WIN32__ |
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15 | #include <windows.h> |
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16 | int gettimeofday |
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17 | (struct timeval* tp, void* tzp) { |
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18 | DWORD t; |
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19 | t = timeGetTime(); |
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20 | tp->tv_sec = t / 1000; |
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21 | tp->tv_usec = 1000 * (t % 1000 ); |
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22 | /* 0 indicates success. */ |
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23 | return 0; |
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24 | } |
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25 | #endif |
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26 | |
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27 | /** |
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28 | * @returns the current time in Second exact to the micro-second |
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29 | */ |
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30 | double Timer::getNow() { |
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31 | |
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32 | #if HAVE_CLOCK_GETTIME |
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33 | |
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34 | // use the POSIX realtime clock to get the current time |
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35 | struct timespec tp; |
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36 | int result = clock_gettime(CLOCK_REALTIME, &tp); |
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37 | if (result == 0) { |
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38 | return tp.tv_sec * tp.tv_nsec / 1000000000.0; |
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39 | } |
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40 | #endif |
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41 | |
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42 | // can't use realtime clock! Try to use gettimeofday |
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43 | struct timeval tv; |
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44 | gettimeofday(&tv, 0); |
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45 | return tv.tv_sec + tv.tv_usec / 1000000.0; |
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46 | } |
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47 | |
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