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HARDCLOCK(9) Kernel Developer's Manual HARDCLOCK(9)

NAME

hardclockreal-time system clock

SYNOPSIS

#include <sys/systm.h>
void
hardclock(struct clockframe *frame);

DESCRIPTION

hardclock() implements the real-time system clock, interrupting hz(9) times a second. The argument frame is an opaque, machine dependent structure that encapsulates the previous machine state.
hardclock() performs a variety of time related housekeeping tasks, such as:

CODE REFERENCES

hardclock() is implemented in the file sys/kern/kern_clock.c.

SEE ALSO

adjtime(2), hz(9), microtime(9), spl(9), time_second(9), timeout(9)
September 27, 2016 OpenBSD-current