#include <sys/param.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/clock.h>

Include dependency graph for subr_fattime.c:

Macros
#define	DAY (24 * 60 * 60) /* Length of day in seconds */

#define	YEAR 365 /* Length of normal year */

#define	LYC (4 * YEAR + 1) /* Length of 4 year leap-year cycle */

#define	T1980 (10 * 365 + 2) /* Days from 1970 to 1980 */

#define	JAN 31

#define	FEB (JAN + 28)

#define	MAR (FEB + 31)

#define	APR (MAR + 30)

#define	MAY (APR + 31)

#define	JUN (MAY + 30)

#define	JUL (JUN + 31)

#define	AUG (JUL + 31)

#define	SEP (AUG + 30)

#define	OCT (SEP + 31)

#define	NOV (OCT + 30)

#define	DEC (NOV + 31)

#define	ENC(y, m) (((y) << 9) \| ((m) << 5))

#define	DCOD(m, y, l) ((m) + YEAR * (y) + (l))

Functions
void	timespec2fattime (const struct timespec tsp, int utc, uint16_t ddp, uint16_t dtp, uint8_t dhp)

void	fattime2timespec (unsigned dd, unsigned dt, unsigned dh, int utc, struct timespec *tsp)

Variables
struct {
uint16_t days

uint16_t coded

}	mtab [48]

static const uint16_t	daytab [64]

Macro Definition Documentation

◆ APR

#define APR (MAR + 30)

Definition at line 89 of file subr_fattime.c.

◆ AUG

#define AUG (JUL + 31)

Definition at line 93 of file subr_fattime.c.

◆ DAY

#define DAY (24 * 60 * 60) /* Length of day in seconds */

Definition at line 80 of file subr_fattime.c.

◆ DCOD

#define DCOD	(	m,
		y,
		l
	)	((m) + YEAR * (y) + (l))

Definition at line 199 of file subr_fattime.c.

◆ DEC

#define DEC (NOV + 31)

Definition at line 97 of file subr_fattime.c.

◆ ENC

#define ENC	(	y,
		m
	)	(((y) << 9) \| ((m) << 5))

Definition at line 101 of file subr_fattime.c.

◆ FEB

#define FEB (JAN + 28)

Definition at line 87 of file subr_fattime.c.

◆ JAN

#define JAN 31

Definition at line 86 of file subr_fattime.c.

◆ JUL

#define JUL (JUN + 31)

Definition at line 92 of file subr_fattime.c.

◆ JUN

#define JUN (MAY + 30)

Definition at line 91 of file subr_fattime.c.

◆ LYC

#define LYC (4 * YEAR + 1) /* Length of 4 year leap-year cycle */

Definition at line 82 of file subr_fattime.c.

◆ MAR

#define MAR (FEB + 31)

Definition at line 88 of file subr_fattime.c.

◆ MAY

#define MAY (APR + 31)

Definition at line 90 of file subr_fattime.c.

◆ NOV

#define NOV (OCT + 30)

Definition at line 96 of file subr_fattime.c.

◆ OCT

#define OCT (SEP + 31)

Definition at line 95 of file subr_fattime.c.

◆ SEP

#define SEP (AUG + 30)

Definition at line 94 of file subr_fattime.c.

◆ T1980

#define T1980 (10 * 365 + 2) /* Days from 1970 to 1980 */

Definition at line 83 of file subr_fattime.c.

◆ YEAR

#define YEAR 365 /* Length of normal year */

Definition at line 81 of file subr_fattime.c.

Function Documentation

◆ fattime2timespec()

void fattime2timespec	(	unsigned	dd,
		unsigned	dt,
		unsigned	dh,
		int	utc,
		struct timespec *	tsp
	)

Definition at line 220 of file subr_fattime.c.

References DAY, daytab, FEB, LYC, T1980, and utc_offset().

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◆ timespec2fattime()

void timespec2fattime	(	const struct timespec *	tsp,
		int	utc,
		uint16_t *	ddp,
		uint16_t *	dtp,
		uint8_t *	dhp
	)

Definition at line 139 of file subr_fattime.c.

References DAY, days, FEB, LYC, mtab, T1980, and utc_offset().

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Variable Documentation

◆ coded

uint16_t coded

Definition at line 105 of file subr_fattime.c.

◆ days

uint16_t days

Definition at line 104 of file subr_fattime.c.

Referenced by clock_ct_to_ts(), clock_ts_to_ct(), and timespec2fattime().

◆ daytab

const uint16_t daytab[64]

static

Initial value:

= {
        0,               DCOD(  0, 0, 0), DCOD(JAN, 0, 0), DCOD(FEB, 0, 1),
        DCOD(MAR, 0, 1), DCOD(APR, 0, 1), DCOD(MAY, 0, 1), DCOD(JUN, 0, 1),
        DCOD(JUL, 0, 1), DCOD(AUG, 0, 1), DCOD(SEP, 0, 1), DCOD(OCT, 0, 1),
        DCOD(NOV, 0, 1), DCOD(DEC, 0, 1), 0,               0,
        0,               DCOD(  0, 1, 1), DCOD(JAN, 1, 1), DCOD(FEB, 1, 1),
        DCOD(MAR, 1, 1), DCOD(APR, 1, 1), DCOD(MAY, 1, 1), DCOD(JUN, 1, 1),
        DCOD(JUL, 1, 1), DCOD(AUG, 1, 1), DCOD(SEP, 1, 1), DCOD(OCT, 1, 1),
        DCOD(NOV, 1, 1), DCOD(DEC, 1, 1), 0,               0,
        0,               DCOD(  0, 2, 1), DCOD(JAN, 2, 1), DCOD(FEB, 2, 1),
        DCOD(MAR, 2, 1), DCOD(APR, 2, 1), DCOD(MAY, 2, 1), DCOD(JUN, 2, 1),
        DCOD(JUL, 2, 1), DCOD(AUG, 2, 1), DCOD(SEP, 2, 1), DCOD(OCT, 2, 1),
        DCOD(NOV, 2, 1), DCOD(DEC, 2, 1), 0,               0,
        0,               DCOD(  0, 3, 1), DCOD(JAN, 3, 1), DCOD(FEB, 3, 1),
        DCOD(MAR, 3, 1), DCOD(APR, 3, 1), DCOD(MAY, 3, 1), DCOD(JUN, 3, 1),
        DCOD(JUL, 3, 1), DCOD(AUG, 3, 1), DCOD(SEP, 3, 1), DCOD(OCT, 3, 1),
        DCOD(NOV, 3, 1), DCOD(DEC, 3, 1), 0,               0
}

Definition at line 200 of file subr_fattime.c.

Referenced by fattime2timespec().

◆

const struct { ... } mtab[48]

Referenced by timespec2fattime().

Macros

Functions

Variables