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1254 | giacomo | 1 | #ifndef __TIME_H__ |
2 | #define __TIME_H__ |
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3 | |||
4 | #include <stdio.h> |
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5 | |||
6 | #define TIMESPEC2NANOSEC(t) ((t)->tv_sec * 1000000000 + (t)->tv_nsec) |
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7 | #define TIMESPEC2USEC(t) ((t)->tv_sec * 1000000 + (t)->tv_nsec / 1000) |
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8 | #define NULL_TIMESPEC(t) ((t)->tv_sec = (t)->tv_nsec = 0) |
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9 | #define ADDNANO2TIMESPEC(n, t) ((t)->tv_nsec += (n), \ |
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10 | (t)->tv_sec += (t)->tv_nsec / 1000000000, \ |
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11 | (t)->tv_nsec %= 1000000000) |
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12 | |||
13 | #define SUBTIMESPEC(s1, s2, d) \ |
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14 | ((d)->tv_nsec = ((s1)->tv_nsec >= (s2)->tv_nsec) ? \ |
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15 | (((d)->tv_sec = (s1)->tv_sec - (s2)->tv_sec), \ |
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16 | (s1)->tv_nsec - (s2)->tv_nsec) \ |
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17 | : \ |
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18 | (((d)->tv_sec = (s1)->tv_sec - (s2)->tv_sec - 1), \ |
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19 | (1000000000 + (s1)->tv_nsec - (s2)->tv_nsec))) |
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20 | |||
21 | /* |
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22 | * ...and these not! |
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23 | */ |
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24 | |||
25 | extern __inline__ void ADDTIMESPEC(const struct timespec *s1, |
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26 | const struct timespec *s2, |
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27 | struct timespec *d) |
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28 | { |
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29 | d->tv_sec = s1->tv_sec + s2->tv_sec; |
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30 | d->tv_nsec = s1->tv_nsec + s2->tv_nsec; |
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31 | |||
32 | if (d->tv_nsec < 0) { |
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33 | d->tv_sec--; |
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34 | d->tv_nsec += 1000000000; |
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35 | } else if (d->tv_nsec >= 1000000000) { |
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36 | d->tv_sec++; |
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37 | d->tv_nsec -= 1000000000; |
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38 | } |
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39 | } |
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40 | |||
41 | |||
42 | #define ADDUSEC2TIMESPEC(m, t) ((t)->tv_nsec += (m%1000000)*1000, \ |
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43 | (t)->tv_sec += ((t)->tv_nsec / 1000000000) + (m/1000000), \ |
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44 | (t)->tv_nsec %= 1000000000) |
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45 | |||
46 | #define TIMESPEC_A_LT_B(a,b) \ |
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47 | ( \ |
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48 | ((a)->tv_sec < (b)->tv_sec) || \ |
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49 | ((a)->tv_sec == (b)->tv_sec && (a)->tv_nsec < (b)->tv_nsec) \ |
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50 | ) |
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51 | |||
52 | #define TIMESPEC_A_GT_B(a,b) \ |
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53 | ( \ |
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54 | ((a)->tv_sec > (b)->tv_sec) || \ |
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55 | ((a)->tv_sec == (b)->tv_sec && (a)->tv_nsec > (b)->tv_nsec) \ |
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56 | ) |
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57 | |||
58 | #define TIMESPEC_A_EQ_B(a,b) \ |
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59 | ((a)->tv_sec == (b)->tv_sec && (a)->tv_nsec == (b)->tv_nsec) |
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60 | |||
61 | #define TIMESPEC_A_NEQ_B(a,b) \ |
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62 | ((a)->tv_sec != (b)->tv_sec || (a)->tv_nsec != (b)->tv_nsec) |
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63 | |||
64 | #define TIMESPEC_ASSIGN(t1,t2) \ |
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65 | ((t1)->tv_sec = (t2)->tv_sec, (t1)->tv_nsec = (t2)->tv_nsec) |
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66 | |||
67 | #endif |