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util/time: add timespec_from_nsec
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@ -13,6 +13,11 @@ uint32_t get_current_time_msec(void);
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*/
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int64_t timespec_to_msec(const struct timespec *a);
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/**
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* Convert nanoseconds to a timespec.
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*/
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void timespec_from_nsec(struct timespec *r, int64_t nsec);
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/**
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* Subtracts timespec `b` from timespec `a`, and stores the difference in `r`.
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*/
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@ -10,6 +10,11 @@ int64_t timespec_to_msec(const struct timespec *a) {
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return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
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}
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void timespec_from_nsec(struct timespec *r, int64_t nsec) {
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r->tv_sec = nsec / NSEC_PER_SEC;
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r->tv_nsec = nsec % NSEC_PER_SEC;
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}
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uint32_t get_current_time_msec(void) {
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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