hardclock man page on MirBSD

hardclock man page on MirBSD

Man page or keyword search:
man Server 6113 pages
apropos Keyword Search (all sections)
Output format

HARDCLOCK(9)		      BSD Kernel Manual			  HARDCLOCK(9)

NAME
     hardclock - real-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 struc-
     ture that encapsulates the previous machine state.

     hardclock() performs a variety of time related housekeeping tasks, such
     as

	   +   If the current process has virtual or profiling interval ti-
	       mers, update the timers and deliver appropriate signals.

	   +   If there is no separate statistics clock, execute statclock().

	   +   Increment the time of day, implementing any adjustments re-
	       quested by adjtime(2) or required as a result of running an NTP
	       daemon or other configured external clock.

	   +   Update the real-time timeout queue, calling softclock() direct-
	       ly if the current interrupt priority is low enough.

SEE ALSO
     adjtime(2), hz(9), microtime(9), spl(9), time(9), timeout(9)

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

MirOS BSD #10-current		July 14, 2001				     1

[top]

List of man pages available for MirBSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]

Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................

Vote for polarhome