| | 8 | static inline int compare_timeval(struct timeval a, struct timeval b) { |
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| | 9 | if (a.tv_sec < b.tv_sec) return -1; |
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| | 10 | if (a.tv_sec > b.tv_sec) return 1; |
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| | 11 | if (a.tv_usec < b.tv_usec) return -1; |
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| | 12 | if (a.tv_usec > b.tv_usec) return 1; |
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| | 13 | return 0; |
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| | 14 | } |
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| | 15 | |
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| | 16 | static inline void sub_timeval(struct timeval a, struct timeval b, |
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| | 17 | struct timeval *out) |
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| | 18 | { |
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| | 19 | out->tv_usec = a.tv_usec - b.tv_usec; |
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| | 20 | if (out->tv_usec < 0L) { |
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| | 21 | a.tv_sec--; |
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| | 22 | out->tv_usec += 1000000L; |
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| | 23 | } |
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| | 24 | out->tv_sec = a.tv_sec - b.tv_sec; |
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| | 25 | if (out->tv_sec < 0L) { |
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| | 26 | out->tv_sec++; |
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| | 27 | out->tv_usec -= 1000000L; |
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| | 28 | } |
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| | 29 | } |
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| | 30 | |
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