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Introduce clock_nanosleep()

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Justine Tunney 2022-10-05 06:37:15 -07:00
parent fe3216e961
commit b75a4654cf
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33 changed files with 553 additions and 100 deletions
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9
libc/calls/_timespec_totimeval.c
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@ -18,6 +18,13 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/timeval.h"
/**
* Reduces `ts` from 1e-9 to 1e-6 granularity w/ ceil rounding.
*/
struct timeval _timespec_totimeval(struct timespec ts) {
return (struct timeval){ts.tv_sec, ts.tv_nsec / 1000};
if (ts.tv_nsec < 1000000000 - 999) {
return (struct timeval){ts.tv_sec, (ts.tv_nsec + 999) / 1000};
} else {
return (struct timeval){ts.tv_sec + 1, 0};
}
}