Time_zone_offset Class Reference

Inheritance diagram for Time_zone_offset:

Public Member Functions
	Time_zone_offset (long tz_offset_arg)
my_time_t	TIME_to_gmt_sec (const MYSQL_TIME *t, bool *in_dst_time_gap) const override
	Converts time in time zone defined as a displacement from UTC from MYSQL_TIME representation to its 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
char	name_buff [7+16]
String	name
long	offset

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_offset()

Time_zone_offset::Time_zone_offset

(

long

tz_offset_arg

)

Member Function Documentation

get_name()

const String * Time_zone_offset::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_offset::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_offset::get_timezone_type ( ) const

inlineoverridevirtual

Returns the timezone type set.

Implements Time_zone.

gmt_sec_to_TIME()

void Time_zone_offset::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_offset::TIME_to_gmt_sec ( const MYSQL_TIME *  t, bool *  in_dst_time_gap  ) const

overridevirtual

Converts time in time zone defined as a displacement from UTC from MYSQL_TIME representation to its my_time_t representation.

Parameters

	t	MYSQL_TIME structure with local time in broken-down representation.
[out]	in_dst_time_gap	Pointer to bool which should be set to true if datetime value passed doesn't really exist (i.e. falls into spring time-gap) and is not touched otherwise. It is not really used in this class.

Returns

Corresponding my_time_t value or 0 for invalid datetime values.

Implements Time_zone.

Member Data Documentation

name

String Time_zone_offset::name

private

name_buff

char Time_zone_offset::name_buff[7+16]

private

offset

long Time_zone_offset::offset

private

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

• sql/tztime.cc