Provides APIs for Time. More...

Collaboration diagram for TIME:

Files
file	time.h

Data Structures
struct	timespec
	structure represents an elapsed time More...

struct	timeval
	structure represents an elapsed time More...

struct	tm
	Structure containing a calendar date and time. More...

struct	itimerspec
	Struct itimerspec is used to define settings for an interval timer. More...

Macros
#define	EXTERN extern

Functions
int	clock_settime (clockid_t clockid, FAR const struct timespec *tp)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

int	clock_gettime (clockid_t clockid, FAR struct timespec *tp)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

int	clock_getres (clockid_t clockid, FAR struct timespec *res)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

time_t	mktime (FAR struct tm *tp)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

FAR struct tm *	gmtime (FAR const time_t *timer)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

FAR struct tm *	gmtime_r (FAR const time_t timer, FAR struct tm result)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

size_t	strftime (char s, size_t max, FAR const char format, FAR const struct tm *tm)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

time_t	time (FAR time_t *tloc)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

int	timer_create (clockid_t clockid, FAR struct sigevent evp, FAR timer_t timerid)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

int	timer_delete (timer_t timerid)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

int	timer_settime (timer_t timerid, int flags, FAR const struct itimerspec value, FAR struct itimerspec ovalue)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

int	timer_gettime (timer_t timerid, FAR struct itimerspec *value)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

int	nanosleep (FAR const struct timespec rqtp, FAR struct timespec rmtp)
	high-resolution sleep More...

EXTERN int	gettimeofday (struct timeval tp, FAR void tzp)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

EXTERN int	clock_isleapyear (int year)
	Return true if the specified year is a leap year. More...

EXTERN int	clock_daysbeforemonth (int month, bool leapyear)
	Get the number of days that occurred before the beginning of the month. More...

EXTERN time_t	clock_calendar2utc (int year, int month, int day)
	Conversion Calendar/UTC. More...

#define	CLK_TCK (100)

#define	localtime(c) gmtime(c)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

#define	localtime_r(c, r) gmtime_r(c, r)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

#define	CLOCKS_PER_SEC (100)

#define	CLOCK_REALTIME 0

#define	TIMER_ABSTIME 1

typedef uint32_t	time_t

typedef uint8_t	clockid_t

typedef FAR void *	timer_t

Detailed Description

Provides APIs for Time.

Macro Definition Documentation

#define CLK_TCK (100)

Definition at line 94 of file time.h.

#define CLOCK_REALTIME 0

Definition at line 109 of file time.h.

#define CLOCKS_PER_SEC (100)

Definition at line 95 of file time.h.

#define EXTERN extern

Definition at line 86 of file time.h.

#define localtime ( c ) gmtime(c)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

Since: Tizen RT v1.0

Definition at line 132 of file time.h.

#define localtime_r	(	c,
		r
	)	gmtime_r(c, r)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

Since: Tizen RT v1.0

Definition at line 138 of file time.h.

#define TIMER_ABSTIME 1

Definition at line 122 of file time.h.

Typedef Documentation

typedef uint8_t clockid_t

Definition at line 146 of file time.h.

typedef uint32_t time_t

Definition at line 145 of file time.h.

typedef FAR void* timer_t

Definition at line 147 of file time.h.

Function Documentation

EXTERN time_t clock_calendar2utc	(	int	year,
		int	month,
		int	day
	)

Conversion Calendar/UTC.

based on algorithms from p. 604 of Seidelman, P. K. 1992. Explanatory Supplement to the Astronomical Almanac. University Science Books, Mill Valley.

Parameters

[in]	year	to change
[in]	month	to change
[in]	day	to change

Returns: the specific time

Since: Tizen RT v1.0

EXTERN int clock_daysbeforemonth	(	int	month,
		bool	leapyear
	)

Get the number of days that occurred before the beginning of the month.

Parameters

[in]	the	beginning of the month
[in]	leap	year

Returns: the number of days

Since: Tizen RT v1.0

int clock_getres	(	clockid_t	clockid,
		FAR struct timespec *	res
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since: Tizen RT v1.0

int clock_gettime	(	clockid_t	clockid,
		FAR struct timespec *	tp
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since: Tizen RT v1.0

EXTERN int clock_isleapyear ( int year )

Return true if the specified year is a leap year.

Parameters

[in] year to check whether a leap year or not

Returns: if leap year, TRUE or FALSE

Since: Tizen RT v1.0

int clock_settime	(	clockid_t	clockid,
		FAR const struct timespec *	tp
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since: Tizen RT v1.0

EXTERN int gettimeofday	(	struct timeval *	tp,
		FAR void *	tzp
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

Since: Tizen RT v1.0

FAR struct tm* gmtime ( FAR const time_t * timer )

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

Since: Tizen RT v1.0

FAR struct tm* gmtime_r	(	FAR const time_t *	timer,
		FAR struct tm *	result
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

Since: Tizen RT v1.0

time_t mktime ( FAR struct tm * tp )

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

Since: Tizen RT v1.0

int nanosleep	(	FAR const struct timespec *	rqtp,
		FAR struct timespec *	rmtp
	)

high-resolution sleep

[SYSTEM CALL API]

Parameters

[in]	rqtp	The amount of time to be suspended from execution.
[in]	rmtp	If the rmtp argument is non-NULL, the timespec structure referenced by it is updated to contain the amount of time remaining in the interval (the requested time minus the time actually slept)

Returns: On success, remaining time is returned. On failure, ERROR is returned.

Since: Tizen RT v1.0

size_t strftime	(	char *	s,
		size_t	max,
		FAR const char *	format,
		FAR const struct tm *	tm
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

Since: Tizen RT v1.0

time_t time ( FAR time_t * tloc )

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

Since: Tizen RT v1.0

int timer_create	(	clockid_t	clockid,
		FAR struct sigevent *	evp,
		FAR timer_t *	timerid
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since: Tizen RT v1.0

int timer_delete ( timer_t timerid )

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since: Tizen RT v1.0

int timer_gettime	(	timer_t	timerid,
		FAR struct itimerspec *	value
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since: Tizen RT v1.0

int timer_settime	(	timer_t	timerid,
		int	flags,
		FAR const struct itimerspec *	value,
		FAR struct itimerspec *	ovalue
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since: Tizen RT v1.0

Files

Data Structures

Macros

Functions

Detailed Description

Macro Definition Documentation

Typedef Documentation

Function Documentation