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769cabbadf
0xFFFFFFFF milliseconds is 4,294,967,295 ms so about 50 days. A little bit too close for comfort. Use int64_t instead of uint64_t to avoid C's implicit conversion footguns in computations.
27 lines
542 B
C
27 lines
542 B
C
#ifndef UTIL_TIME_H
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#define UTIL_TIME_H
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#include <time.h>
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/**
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* Get the current time, in milliseconds.
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*/
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int64_t get_current_time_msec(void);
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/**
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* Convert a timespec to milliseconds.
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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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void timespec_sub(struct timespec *r, const struct timespec *a,
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const struct timespec *b);
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#endif
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