subr_clock.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/clock.h>
#include <sys/limits.h>
#include <sys/sysctl.h>
#include <sys/timetc.h>

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Macros
#define	FEBRUARY   2
#define	days_in_year(y)   (leapyear(y) ? 366 : 365)
#define	days_in_month(y, m)   (month_days[(m) - 1] + (m == FEBRUARY ? leapyear(y) : 0))
#define	day_of_week(days)   (((days) + 4) % 7)

Functions
	__FBSDID ("$BSDSUniX$")
static int	sysctl_machdep_adjkerntz (SYSCTL_HANDLER_ARGS)
	SYSCTL_PROC (_machdep, OID_AUTO, adjkerntz, CTLTYPE_INT|CTLFLAG_RW,&adjkerntz, 0, sysctl_machdep_adjkerntz,"I","Local offset from UTC in seconds")
	SYSCTL_INT (_debug, OID_AUTO, clocktime, CTLFLAG_RW,&ct_debug, 0,"Enable printing of clocktime debugging")
	SYSCTL_INT (_machdep, OID_AUTO, wall_cmos_clock, CTLFLAG_RW,&wall_cmos_clock, 0,"Enables application of machdep.adjkerntz")
static int	leapyear (int year)
static void	print_ct (struct clocktime *ct)
int	clock_ct_to_ts (struct clocktime *ct, struct timespec *ts)
void	clock_ts_to_ct (struct timespec *ts, struct clocktime *ct)
int	utc_offset (void)

Variables
int	tz_minuteswest
int	tz_dsttime
static int	adjkerntz
static int	ct_debug
static int	wall_cmos_clock
static const int	month_days [12]

Macro Definition Documentation

#define day_of_week

(

days

)

(((days) + 4) % 7)

Definition at line 94 of file subr_clock.c.

Referenced by clock_ts_to_ct().

#define days_in_month	(		y,
			m
	)		(month_days[(m) - 1] + (m == FEBRUARY ? leapyear(y) : 0))

Definition at line 91 of file subr_clock.c.

Referenced by clock_ct_to_ts(), and clock_ts_to_ct().

#define days_in_year

(

y

)

(leapyear(y) ? 366 : 365)

Definition at line 90 of file subr_clock.c.

Referenced by clock_ct_to_ts(), and clock_ts_to_ct().

#define FEBRUARY   2

Definition at line 89 of file subr_clock.c.

Function Documentation

__FBSDID

(

"$BSDSUniX$"

)

int clock_ct_to_ts	(	struct clocktime *	ct,
		struct timespec *	ts
	)

Definition at line 134 of file subr_clock.c.

References ct_debug, days, days_in_month, days_in_year, print_ct(), and printf().

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void clock_ts_to_ct	(	struct timespec *	ts,
		struct clocktime *	ct
	)

Definition at line 181 of file subr_clock.c.

References ct_debug, day_of_week, days, days_in_month, days_in_year, print_ct(), and printf().

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static int leapyear ( int  year )

static

Definition at line 110 of file subr_clock.c.

static void print_ct ( struct clocktime *  ct )

static

Definition at line 126 of file subr_clock.c.

References printf().

Referenced by clock_ct_to_ts(), and clock_ts_to_ct().

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SYSCTL_INT	(	_debug	,
		OID_AUTO	,
		clocktime	,
		CTLFLAG_RW	,
		&	ct_debug,
		0	,
		"Enable printing of clocktime debugging"
	)

SYSCTL_INT	(	_machdep	,
		OID_AUTO	,
		wall_cmos_clock	,
		CTLFLAG_RW	,
		&	wall_cmos_clock,
		0	,
		"Enables application of machdep.adjkerntz"
	)

static int sysctl_machdep_adjkerntz ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 62 of file subr_clock.c.

References resettodr(), and sysctl_handle_int().

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SYSCTL_PROC	(	_machdep	,
		OID_AUTO	,
		adjkerntz	,
		CTLTYPE_INT|	CTLFLAG_RW,
		&	adjkerntz,
		0	,
		sysctl_machdep_adjkerntz	,
		"I"	,
		"Local offset from UTC in seconds"
	)

int utc_offset

(

void

)

Definition at line 222 of file subr_clock.c.

References adjkerntz, tz_minuteswest, and wall_cmos_clock.

Referenced by fattime2timespec(), inittodr(), resettodr(), and timespec2fattime().

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Variable Documentation

int adjkerntz

static

Definition at line 60 of file subr_clock.c.

Referenced by utc_offset().

int ct_debug

static

Definition at line 74 of file subr_clock.c.

Referenced by clock_ct_to_ts(), and clock_ts_to_ct().

const int month_days[12]

static

Initial value:

= {
        31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
}

Definition at line 96 of file subr_clock.c.

int tz_dsttime

Definition at line 54 of file subr_clock.c.

Referenced by kern_settimeofday(), and sys_gettimeofday().

int tz_minuteswest

Definition at line 53 of file subr_clock.c.

Referenced by kern_settimeofday(), sys_gettimeofday(), and utc_offset().

int wall_cmos_clock

static

Definition at line 78 of file subr_clock.c.

Referenced by utc_offset().