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Manual Pages  — TIMESPEC_GET

NAME

timespec_get – get current calendar time

CONTENTS

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <time.h>

int
timespec_get(struct timespec *ts, int base);

DESCRIPTION

The timespec_get function sets the interval pointed to by ts to hold the current calendar time based on the specified time base in base.

The base TIME_UTC returns the time since the epoch. This time is expressed in seconds and nanoseconds since midnight (0 hour), January 1, 1970. In FreeBSD , this corresponds to CLOCK_REALTIME.

The base TIME_MONOTONIC returns a monotonically-increasing time since an unspecified point in the past. In FreeBSD , this corresponds to CLOCK_MONOTONIC.

RETURN VALUES

The timespec_get function returns the passed value of base if successful, otherwise 0 on failure.

SEE ALSO

clock_gettime(2), gettimeofday(2), time(3), timespec_getres(3)

STANDARDS

The timespec_get function with a base of TIME_UTC conforms to ISO/IEC .

HISTORY

This interface first appeared in FreeBSD 12 .

AUTHORS

Kamil Rytarowski <Mt kamil@NetBSD.org> Warner Losh <Mt imp@FreeBSD.org>
TIMESPEC_GET (3) August 21, 2023
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