#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 ("$FreeBSD$")

static int	sysctl_machdep_adjkerntz (SYSCTL_HANDLER_ARGS)

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

	SYSCTL_INT (_debug, OID_AUTO, clocktime, CTLFLAG_RWTUN, &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)

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

int	clock_bcd_to_ts (const struct bcd_clocktime bct, struct timespec ts, bool ampm)

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

void	clock_ts_to_bcd (const struct timespec ts, struct bcd_clocktime bct, bool ampm)

void	clock_print_bcd (const struct bcd_clocktime *bct, int nsdigits)

void	clock_print_ct (const struct clocktime *ct, int nsdigits)

void	clock_print_ts (const struct timespec *ts, int nsdigits)

int	utc_offset (void)

Variables
static int	adjkerntz

static int	ct_debug

static int	wall_cmos_clock

static const int	month_days [12]

static const int	recent_base_year = 2017

static const int	recent_base_days = 17167

static u_int	nsdivisors []

Macro Definition Documentation

◆ day_of_week

#define day_of_week ( days ) (((days) + 4) % 7)

Definition at line 92 of file subr_clock.c.

◆ days_in_month

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

Definition at line 89 of file subr_clock.c.

◆ days_in_year

#define days_in_year ( y ) (leapyear(y) ? 366 : 365)

Definition at line 88 of file subr_clock.c.

◆ FEBRUARY

#define FEBRUARY 2

Definition at line 87 of file subr_clock.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ clock_bcd_to_ts()

int clock_bcd_to_ts	(	const struct bcd_clocktime *	bct,
		struct timespec *	ts,
		bool	ampm
	)

Definition at line 199 of file subr_clock.c.

References clock_ct_to_ts(), ct_debug, printf(), and ts.

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◆ clock_ct_to_ts()

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

Definition at line 139 of file subr_clock.c.

References clock_print_ct(), ct_debug, days, days_in_month, days_in_year, printf(), recent_base_days, recent_base_year, and ts.

Referenced by clock_bcd_to_ts().

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◆ clock_print_bcd()

void clock_print_bcd	(	const struct bcd_clocktime *	bct,
		int	nsdigits
	)

Definition at line 337 of file subr_clock.c.

References nsdivisors, and printf().

Referenced by clock_dbgprint_bcd().

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◆ clock_print_ct()

void clock_print_ct	(	const struct clocktime *	ct,
		int	nsdigits
	)

Definition at line 355 of file subr_clock.c.

References nsdivisors, and printf().

Referenced by clock_ct_to_ts(), clock_dbgprint_ct(), clock_print_ts(), and clock_ts_to_ct().

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◆ clock_print_ts()

void clock_print_ts	(	const struct timespec *	ts,
		int	nsdigits
	)

Definition at line 373 of file subr_clock.c.

References clock_print_ct(), clock_ts_to_ct(), and ts.

Referenced by clock_dbgprint_hdr(), and clock_dbgprint_ts().

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◆ clock_ts_to_bcd()

void clock_ts_to_bcd	(	const struct timespec *	ts,
		struct bcd_clocktime *	bct,
		bool	ampm
	)

Definition at line 309 of file subr_clock.c.

References clock_ts_to_ct(), and ts.

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◆ clock_ts_to_ct()

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

Definition at line 248 of file subr_clock.c.

References clock_print_ct(), ct_debug, day_of_week, days, days_in_month, days_in_year, printf(), recent_base_days, recent_base_year, and ts.

Referenced by clock_print_ts(), and clock_ts_to_bcd().

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◆ leapyear()

static int leapyear ( int year )

static

Definition at line 123 of file subr_clock.c.

◆ SYSCTL_INT() [1/2]

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

◆ SYSCTL_INT() [2/2]

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

◆ sysctl_machdep_adjkerntz()

static int sysctl_machdep_adjkerntz ( SYSCTL_HANDLER_ARGS )

static

Definition at line 61 of file subr_clock.c.

References resettodr(), and sysctl_handle_int().

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◆ SYSCTL_PROC()

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

◆ utc_offset()

int utc_offset ( void )

Definition at line 382 of file subr_clock.c.

References adjkerntz, and wall_cmos_clock.

Referenced by fattime2timespec(), kern_clock_settime(), read_clocks(), settime_task_func(), and timespec2fattime().

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Variable Documentation

◆ adjkerntz

int adjkerntz

static

Definition at line 59 of file subr_clock.c.

Referenced by utc_offset().

◆ ct_debug

int ct_debug

static

Definition at line 73 of file subr_clock.c.

Referenced by clock_bcd_to_ts(), clock_ct_to_ts(), and clock_ts_to_ct().

◆ month_days

const int month_days[12]

static

Initial value:

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

Definition at line 94 of file subr_clock.c.

◆ nsdivisors

u_int nsdivisors[]

static

Initial value:

= {
    1000000000, 100000000, 10000000, 1000000, 100000, 10000, 1000, 100, 10, 1
}

Definition at line 110 of file subr_clock.c.

Referenced by clock_print_bcd(), and clock_print_ct().

◆ recent_base_days

const int recent_base_days = 17167

static

Definition at line 104 of file subr_clock.c.

Referenced by clock_ct_to_ts(), and clock_ts_to_ct().

◆ recent_base_year

const int recent_base_year = 2017

static

Definition at line 103 of file subr_clock.c.

Referenced by clock_ct_to_ts(), and clock_ts_to_ct().

◆ wall_cmos_clock

int wall_cmos_clock

static

Definition at line 77 of file subr_clock.c.

Referenced by utc_offset().

Macros

Functions

Variables

Macro Definition Documentation

◆ day_of_week

◆ days_in_month

◆ days_in_year

◆ FEBRUARY

Function Documentation

◆ __FBSDID()

◆ clock_bcd_to_ts()

◆ clock_ct_to_ts()

◆ clock_print_bcd()

◆ clock_print_ct()

◆ clock_print_ts()

◆ clock_ts_to_bcd()

◆ clock_ts_to_ct()

◆ leapyear()

◆ SYSCTL_INT() [1/2]

◆ SYSCTL_INT() [2/2]

◆ sysctl_machdep_adjkerntz()

◆ SYSCTL_PROC()

◆ utc_offset()

Variable Documentation

◆ adjkerntz

◆ ct_debug

◆ month_days

◆ nsdivisors

◆ recent_base_days

◆ recent_base_year

◆ wall_cmos_clock