Time_zone_db Class Reference

Inheritance diagram for Time_zone_db:

Public Member Functions
	Time_zone_db (TIME_ZONE_INFO *tz_info_arg, const String *tz_name_arg)
my_time_t	TIME_to_gmt_sec (const MYSQL_TIME *t, bool *in_dst_time_gap) const override
	Converts the date/time value to my_time_t representation. More...
void	gmt_sec_to_TIME (MYSQL_TIME *tmp, my_time_t t) const override
	Converts UTC epoch seconds to time in MYSQL_TIME representation. More...
const String *	get_name () const override
	Because of constness of String returned by get_name() time zone name have to be already zeroended to be able to use String::ptr() instead of c_ptr(). More...
tz_type	get_timezone_type () const override
	Returns the timezone type set. More...
long	get_timezone_offset () const override
	Returns the offset set for a Timezone offset. More...
Public Member Functions inherited from Time_zone
void	gmt_sec_to_TIME (MYSQL_TIME *tmp, my_timeval tv) const
	Converts UTC epoch seconds and microseconds to time in MYSQL_TIME representation. More...
virtual	~Time_zone ()=default
	We need this only for suppressing warnings, objects of this type are allocated on MEM_ROOT and should not require destruction. More...

Private Attributes
TIME_ZONE_INFO *	tz_info
const String *	tz_name

Additional Inherited Members
Public Types inherited from Time_zone
enum	tz_type { TZ_DB = 1 , TZ_OFFSET = 2 , TZ_SYSTEM = 3 , TZ_UTC = 4 }
	Enum to identify the type of the timezone. More...
Static Protected Member Functions inherited from Time_zone
static void	adjust_leap_second (MYSQL_TIME *t)
	Convert leap seconds into non-leap. More...

Constructor & Destructor Documentation

Time_zone_db()

Time_zone_db::Time_zone_db	(	TIME_ZONE_INFO *	tz_info_arg,
		const String *	tz_name_arg
	)

Member Function Documentation

get_name()

const String * Time_zone_db::get_name ( ) const

overridevirtual

Because of constness of String returned by get_name() time zone name have to be already zeroended to be able to use String::ptr() instead of c_ptr().

Implements Time_zone.

get_timezone_offset()

long Time_zone_db::get_timezone_offset ( ) const

inlineoverridevirtual

Returns the offset set for a Timezone offset.

This function has to be invoked ONLY when TZ_OFFSET is set.

Implements Time_zone.

get_timezone_type()

tz_type Time_zone_db::get_timezone_type ( ) const

inlineoverridevirtual

Returns the timezone type set.

Implements Time_zone.

gmt_sec_to_TIME()

void Time_zone_db::gmt_sec_to_TIME ( MYSQL_TIME *  tmp, my_time_t  t  ) const

overridevirtual

Converts UTC epoch seconds to time in MYSQL_TIME representation.

Parameters

[out]	tmp	equivalent time point in MYSQL_TIME representation
[in]	t	number of seconds in UNIX epoch

Implements Time_zone.

TIME_to_gmt_sec()

my_time_t Time_zone_db::TIME_to_gmt_sec ( const MYSQL_TIME *  mt, bool *  in_dst_time_gap  ) const

overridevirtual

Converts the date/time value to my_time_t representation.

If the date/time value has a time zone displacement, it is taken to be in UTC and the displacement is subtracted. Otherwise, it gets interpreted as being in the time zone described by this object.

Parameters

	mt	Pointer to MYSQL_TIME structure with local time in broken-down representation.
[out]	in_dst_time_gap	Set to true if datetime value passed doesn't really exist (i.e. falls into spring time-gap,) not touched otherwise.

See also

TIME_to_gmt_sec() for function description and parameter restrictions.

Returns

Corresponding my_time_t value or 0 in case of error.

Implements Time_zone.

Member Data Documentation

tz_info

TIME_ZONE_INFO* Time_zone_db::tz_info

private

tz_name

const String* Time_zone_db::tz_name

private

---

The documentation for this class was generated from the following file:

• sql/tztime.cc