File tz_support.c¶

FileList > base > tz_support.c

#include "config.h"
#include <assert.h>
#include "tz_support.h"
#include "db_date.h"
#include "environment_variable.h"
#include "chartype.h"
#include "error_manager.h"
#include <dlfcn.h>
#include <unistd.h>
#include "system_parameter.h"
#include "show_scan.h"
#include "session.h"
#include "boot_sr.h"
#include "dbtype.h"
#include "thread_manager.hpp"
#include "memory_wrapper.hpp"

Classes¶

Type	Name
struct	tz_decode_info

Public Types¶

Type	Name
typedef enum ds_search_direction	DS_SEARCH_DIRECTION
typedef struct tz_decode_info	TZ_DECODE_INFO
enum	ds_search_direction

Public Attributes¶

Type	Name
bool	tz_Compare_datetimetz_tz_id = `[false](broker__monitor_8c.md#function-timeout)`
bool	tz_Compare_timestamptz_tz_id = `[false](broker__monitor_8c.md#function-timeout)`
bool	tz_Is_backward_compatible_timezone

Public Static Attributes¶

Type	Name
const int	tz_Days_of_month = `{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }`
const int	tz_Days_up_to_month = `{ 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }`
int	tz_Initialized = `0`
void *	tz_Lib_handle = `[NULL](freelistheap_8h.md#define-null)`
TZ_DATA	tz_New_timezone_data = `{ 0, [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), {'0'} }`
TZ_REGION	tz_Region_system
TZ_DATA	tz_Timezone_data = `{ 0, [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), 0, [NULL](freelistheap_8h.md#define-null), {'0'} }`

Public Functions¶

Type	Name
int	check_timezone_compat (const char * client_checksum, const char * server_checksum, const char * client_text, const char * server_text)
int	conv_tz (void * p_out, const void * p_in, DB_TYPE type)
int	tz_check_geographic_tz (const TZ_ID * tz_id)
int	tz_check_session_has_geographic_tz (void)
int	tz_conv_tz_datetime_w_region (const DB_DATETIME * src_dt, const TZ_REGION * src_tz_region, const TZ_REGION * dest_tz_region, DB_DATETIME * dest_dt, TZ_ID * src_tz_id_out, TZ_ID * dest_tz_id_out)
int	tz_conv_tz_datetime_w_zone_name (const DB_DATETIME * src_dt, const char * source_zone, int len_source, const char * dest_zone, int len_dest, DB_DATETIME * dest_dt)
int	tz_conv_tz_time_w_zone_name (const DB_TIME * time_source, const char * source_zone, int len_source, const char * dest_zone, int len_dest, DB_TIME * time_dest)
int	tz_create_datetimetz (const DB_DATETIME * dt, const char * tz_str, const int tz_size, const TZ_REGION * default_tz_region, DB_DATETIMETZ * dt_tz, const char ** end_tz_str)
int	tz_create_datetimetz_from_offset (const DB_DATETIME * dt, const int tzh, const int tzm, DB_DATETIMETZ * dt_tz)
int	tz_create_datetimetz_from_parts (const int m, const int d, const int y, const int h, const int mi, const int s, const int ms, const TZ_ID * tz_id, DB_DATETIMETZ * dt_tz)
int	tz_create_datetimetz_from_ses (const DB_DATETIME * dt, DB_DATETIMETZ * dt_tz)
int	tz_create_datetimetz_from_utc (const DB_DATETIME * src_dt, const TZ_REGION * dest_region, DB_DATETIMETZ * dest_dt_tz)
int	tz_create_datetimetz_from_zoneid_and_tzd (const DB_DATETIME * dt, TZ_REGION * default_tz_region, const int zone_id, const char * tzd, const int tzd_len, bool is_time_tz, DB_DATETIMETZ * dt_tz)
int	tz_create_session_tzid_for_datetime (const DB_DATETIME * src_dt, bool src_is_utc, TZ_ID * tz_id)
int	tz_create_session_tzid_for_time (const DB_TIME * src_time, bool src_is_utc, TZ_ID * tz_id)
int	tz_create_session_tzid_for_timestamp (const DB_UTIME * src_ts, TZ_ID * tz_id)
int	tz_create_timestamptz (const DB_DATE * date, const DB_TIME * time, const char * tz_str, const int tz_size, const TZ_REGION * default_tz_region, DB_TIMESTAMPTZ * ts_tz, const char ** end_tz_str)
int	tz_create_timestamptz_from_offset (const DB_DATE * date, const DB_TIME * time, const int tzh, const int tzm, DB_TIMESTAMPTZ * timestamp_tz)
int	tz_create_timestamptz_from_zoneid_and_tzd (const DB_DATE * date, const DB_TIME * time, TZ_REGION * default_tz_region, const int zone_id, const char * tzd, const int tzd_len, DB_TIMESTAMPTZ * timestamp_tz)
int	tz_datetimeltz_to_local (const DB_DATETIME * dt_ltz, DB_DATETIME * dt_local)
int	tz_datetimetz_fix_zone (const DB_DATETIMETZ * src_dt_tz, DB_DATETIMETZ * dest_dt_tz)
int	tz_explain_tz_id (const TZ_ID * tz_id, char * tzr, const int tzr_size, char * tzdst, const int tzdst_size, int * tzh, int * tzm)
int	tz_get_best_match_zone (const char * name, int * size)
const TZ_DATA *	tz_get_data (void)
int	tz_get_ds_change_julian_date_diff (const int src_julian_date, const TZ_DS_RULE * ds_rule, const int year, int * ds_rule_julian_date, full_date_t * date_diff)
int	tz_get_first_weekday_around_date (const int year, const int month, const int weekday, const int ref_day, const bool before)
const TZ_DATA *	tz_get_new_timezone_data (void)
int	tz_get_offset_in_mins ()
TZ_REGION *	tz_get_server_tz_region_session (void)
const char *	tz_get_session_local_timezone (void)
void	tz_get_session_tz_region (TZ_REGION * tz_region)
const char *	tz_get_system_timezone (void)
void	tz_get_system_tz_region (TZ_REGION * tz_region)
int	tz_get_timezone_offset (const char * tz_str, int tz_size, char * result, DB_DATETIME * utc_datetime)
const TZ_ID *	tz_get_utc_tz_id (void)
const TZ_REGION *	tz_get_utc_tz_region (void)
void	tz_id_to_region (const TZ_ID * tz_id, TZ_REGION * tz_region)
int	tz_id_to_str (const TZ_ID * tz_id, char * tz_str, const int tz_str_size)
int	tz_load (void)
int	tz_load_with_library_path (TZ_DATA * tzd, const char * timezone_library_path)
int	tz_resolve_os_timezone (char * timezone, int buf_len)
void	tz_set_data (const TZ_DATA * data)
void	tz_set_new_timezone_data (const TZ_DATA * data)
void	tz_set_tz_region_system (const TZ_REGION * tz_region)
int	tz_str_read_number (const char * str, const char * str_end, const bool strict, const bool read_sign, int * val, const char ** str_next)
int	tz_str_read_time (const char * str, const char * str_end, bool need_minutes, bool allow_sec60, int * hour, int * min, int * sec, const char ** str_next)
int	tz_str_to_region (const char * tz_str, const int tz_str_size, TZ_REGION * tz_region)
int	tz_str_to_seconds (const char * str, const char * str_end, int * seconds, const char str_next, const bool** is_offset)
void	tz_timestamp_decode_no_leap_sec (int timestamp, int * yearp, int * monthsp, int * dayp, int * hoursp, int * minutesp, int * secondsp)
void	tz_timestamp_decode_sec (int timestamp, int * yearp, int * monthsp, int * dayp, int * hoursp, int * minutesp, int * secondsp)
DB_BIGINT	tz_timestamp_encode_leap_sec_adj (const int year_century, const int year, const int mon, const int day)
int	tz_timestamptz_fix_zone (const DB_TIMESTAMPTZ * src_ts_tz, DB_TIMESTAMPTZ * dest_ts_tz)
void	tz_tzid_convert_region_to_offset (TZ_ID * tz_id)
void	tz_unload (void)
int	tz_utc_datetimetz_to_local (const DB_DATETIME * dt_utc, const TZ_ID * tz_id, DB_DATETIME * dt_local)

Public Static Functions¶

Type	Name
int	get_closest_ds_rule (const int src_julian_date, const int src_time_sec, const TZ_DS_RULESET * ds_ruleset, const TZ_DATA * tzd, const DS_SEARCH_DIRECTION direction)
int	get_date_diff_from_ds_rule (const int src_julian_date, const int src_time_sec, const TZ_DS_RULE * ds_rule, const DS_SEARCH_DIRECTION direction, full_date_t * date_diff)
int	get_saving_time_from_offset_rule (const TZ_OFFSET_RULE * offset_rule, const TZ_DATA * tzd, int * save_time)
int	get_year_to_apply_rule (const int src_year, const TZ_DS_RULE * ds_rule)
bool	is_in_overlap_interval (const TZ_TIME_TYPE time_type, const full_date_t offset_rule_diff, const full_date_t gmt_diff, const int save_time_diff)
int	set_new_zone_id (TZ_DECODE_INFO * tz_info)
int	starts_with (const char * prefix, const char * str)
bool	tz_check_ds_match_string (const TZ_OFFSET_RULE * off_rule, const TZ_DS_RULE * ds_rule, const char * ds_string, const char * default_abrev)
int	tz_conv_tz_datetime_w_zone_info (const DB_DATETIME * src_dt, const TZ_DECODE_INFO * src_zone_info_in, const TZ_DECODE_INFO * dest_zone_info_in, DB_DATETIME * dest_dt, TZ_DECODE_INFO * src_zone_info_out, TZ_DECODE_INFO * dest_zone_info_out)
int	tz_datetime_utc_conv (const DB_DATETIME * src_dt, TZ_DECODE_INFO * tz_info, bool src_is_utc, bool only_tz_adjust, DB_DATETIME * dest_dt)
void	tz_decode_tz_id (const TZ_ID * tz_id, const bool is_full_decode, TZ_DECODE_INFO * tz_info)
void	tz_decode_tz_region (const TZ_REGION * tz_region, TZ_DECODE_INFO * tz_info)
void	tz_encode_tz_id (const TZ_DECODE_INFO * tz_info, TZ_ID * tz_id)
void	tz_encode_tz_region (const TZ_DECODE_INFO * tz_info, TZ_REGION * tz_region)
int	tz_fast_find_ds_rule (const TZ_DATA * tzd, const TZ_DS_RULESET * ds_ruleset, const int src_julian_date, const int src_year, const int src_month, int * ds_rule_id)
DB_DATE	tz_get_current_date (void)
const TZ_REGION *	tz_get_invalid_tz_region (void)
bool	tz_get_leapsec_support (void)
int	tz_get_zone_id_by_name (const char * name, const int name_size)
int	tz_load_data_from_lib (TZ_DATA * tzd, void * lib_handle)
int	tz_load_library (const char * lib_file, void ** handle)
int	tz_offset (const bool src_is_utc, const TZ_TIME_TYPE until_time_type, const int gmt_offset_sec, const int ds_save_time)
int	tz_print_tz_offset (char * result, int tz_offset)
int	tz_str_timezone_decode (const char * tz_str, const int tz_str_size, TZ_DECODE_INFO * tz_info, const char ** tz_end)
void	tz_timestamp_decode_leap_sec_adj (int timestamp, int * yearp, int * monthsp, int * dayp, int * hoursp, int * minutesp, int * secondsp)
int	tz_zone_info_to_str (const TZ_DECODE_INFO * tz_info, char * tz_str, const int tz_str_size)

Macros¶

Type	Name
define	ABS (i) `(([i](dynamic__load_8c.md#variable-i)) >= 0 ? ([i](dynamic__load_8c.md#variable-i)) : -([i](dynamic__load_8c.md#variable-i)))`
define	APPLY_NEXT_OFF_RULE () `/* multi line expression */`
define	FULL_DATE (jul_date, time_sec) `/* multi line expression */`
define	LEN_MIN_HOUR `6`
define	LEN_MIN_HOUR_SEC `9`
define	MILLIS_IN_A_DAY `([long](broker__monitor_8c.md#function-timeout))(86400000) /\* 24[L](broker__monitor_8c.md#function-timeout) \* 60L \* 60L \* 1000 \*/`
define	SECONDS_IN_A_DAY `24 \* 3600`
define	TIME_OFFSET (is_utc, offset) `(([is\_utc](broker__monitor_8c.md#function-timeout)) ? (-offset) : (offset))`
define	TZLIB_GET_ADDR (v, SYM_NAME, SYM_TYPE, lh) `/* multi line expression */`
define	TZLIB_GET_VAL (v, SYM_NAME, SYM_TYPE, lh) `/* multi line expression */`
define	TZ_BIT_SHIFT_TZ_ID_FLAG `30`
define	TZ_GET_SYM_ADDR (lib, sym) `[dlsym](broker__monitor_8c.md#function-timeout)([lib](broker__monitor_8c.md#function-timeout), [sym](broker__monitor_8c.md#function-timeout))`
define	TZ_INVALID_OFFSET `((((23 \* 60) + 59) \* 60) + 59)`
define	TZ_MASK_TZ_ID_FLAG `0xc0000000`
define	TZ_MAX_OFFSET `14 \* 3600`
define	TZ_MIN_OFFSET `-12 \* 3600`
define	TZ_OFFSET_MASK `0x3fffffff`
define	strlen (s1) `(([int](broker__monitor_8c.md#function-timeout)) strlen([s1](broker__monitor_8c.md#function-timeout)))`

Public Types Documentation¶

typedef DS_SEARCH_DIRECTION¶

typedef enum ds_search_direction DS_SEARCH_DIRECTION;

typedef TZ_DECODE_INFO¶

typedef struct tz_decode_info TZ_DECODE_INFO;

enum ds_search_direction¶

enum ds_search_direction {
    FORWARD = 0,
    BACKWARD = 1
};

Public Attributes Documentation¶

variable tz_Compare_datetimetz_tz_id¶

bool tz_Compare_datetimetz_tz_id;

variable tz_Compare_timestamptz_tz_id¶

bool tz_Compare_timestamptz_tz_id;

variable tz_Is_backward_compatible_timezone¶

bool tz_Is_backward_compatible_timezone[10000];

Public Static Attributes Documentation¶

variable tz_Days_of_month¶

const int tz_Days_of_month[];

variable tz_Days_up_to_month¶

const int tz_Days_up_to_month[];

variable tz_Initialized¶

int tz_Initialized;

variable tz_Lib_handle¶

void* tz_Lib_handle;

variable tz_New_timezone_data¶

TZ_DATA tz_New_timezone_data;

variable tz_Region_system¶

TZ_REGION tz_Region_system;

variable tz_Timezone_data¶

TZ_DATA tz_Timezone_data;

Public Functions Documentation¶

function check_timezone_compat¶

int check_timezone_compat (
    const  char * client_checksum,
    const  char * server_checksum,
    const  char * client_text,
    const  char * server_text
)

function conv_tz¶

int conv_tz (
    void * p_out,
    const  void * p_in,
    DB_TYPE type
)

function tz_check_geographic_tz¶

int tz_check_geographic_tz (
    const  TZ_ID * tz_id
)

function tz_check_session_has_geographic_tz¶

int tz_check_session_has_geographic_tz (
    void
)

function tz_conv_tz_datetime_w_region¶

int tz_conv_tz_datetime_w_region (
    const  DB_DATETIME * src_dt,
    const  TZ_REGION * src_tz_region,
    const  TZ_REGION * dest_tz_region,
    DB_DATETIME * dest_dt,
    TZ_ID * src_tz_id_out,
    TZ_ID * dest_tz_id_out
)

function tz_conv_tz_datetime_w_zone_name¶

int tz_conv_tz_datetime_w_zone_name (
    const  DB_DATETIME * src_dt,
    const  char * source_zone,
    int len_source,
    const  char * dest_zone,
    int len_dest,
    DB_DATETIME * dest_dt
)

function tz_conv_tz_time_w_zone_name¶

int tz_conv_tz_time_w_zone_name (
    const  DB_TIME * time_source,
    const  char * source_zone,
    int len_source,
    const  char * dest_zone,
    int len_dest,
    DB_TIME * time_dest
)

function tz_create_datetimetz¶

int tz_create_datetimetz (
    const  DB_DATETIME * dt,
    const  char * tz_str,
    const  int tz_size,
    const  TZ_REGION * default_tz_region,
    DB_DATETIMETZ * dt_tz,
    const  char ** end_tz_str
)

function tz_create_datetimetz_from_offset¶

int tz_create_datetimetz_from_offset (
    const  DB_DATETIME * dt,
    const  int tzh,
    const  int tzm,
    DB_DATETIMETZ * dt_tz
)

function tz_create_datetimetz_from_parts¶

int tz_create_datetimetz_from_parts (
    const  int m,
    const  int d,
    const  int y,
    const  int h,
    const  int mi,
    const  int s,
    const  int ms,
    const  TZ_ID * tz_id,
    DB_DATETIMETZ * dt_tz
)

function tz_create_datetimetz_from_ses¶

int tz_create_datetimetz_from_ses (
    const  DB_DATETIME * dt,
    DB_DATETIMETZ * dt_tz
)

function tz_create_datetimetz_from_utc¶

int tz_create_datetimetz_from_utc (
    const  DB_DATETIME * src_dt,
    const  TZ_REGION * dest_region,
    DB_DATETIMETZ * dest_dt_tz
)

function tz_create_datetimetz_from_zoneid_and_tzd¶

int tz_create_datetimetz_from_zoneid_and_tzd (
    const  DB_DATETIME * dt,
    TZ_REGION * default_tz_region,
    const  int zone_id,
    const  char * tzd,
    const  int tzd_len,
    bool is_time_tz,
    DB_DATETIMETZ * dt_tz
)

function tz_create_session_tzid_for_datetime¶

int tz_create_session_tzid_for_datetime (
    const  DB_DATETIME * src_dt,
    bool src_is_utc,
    TZ_ID * tz_id
)

function tz_create_session_tzid_for_time¶

int tz_create_session_tzid_for_time (
    const  DB_TIME * src_time,
    bool src_is_utc,
    TZ_ID * tz_id
)

function tz_create_session_tzid_for_timestamp¶

int tz_create_session_tzid_for_timestamp (
    const  DB_UTIME * src_ts,
    TZ_ID * tz_id
)

function tz_create_timestamptz¶

int tz_create_timestamptz (
    const  DB_DATE * date,
    const  DB_TIME * time,
    const  char * tz_str,
    const  int tz_size,
    const  TZ_REGION * default_tz_region,
    DB_TIMESTAMPTZ * ts_tz,
    const  char ** end_tz_str
)

function tz_create_timestamptz_from_offset¶

int tz_create_timestamptz_from_offset (
    const  DB_DATE * date,
    const  DB_TIME * time,
    const  int tzh,
    const  int tzm,
    DB_TIMESTAMPTZ * timestamp_tz
)

function tz_create_timestamptz_from_zoneid_and_tzd¶

int tz_create_timestamptz_from_zoneid_and_tzd (
    const  DB_DATE * date,
    const  DB_TIME * time,
    TZ_REGION * default_tz_region,
    const  int zone_id,
    const  char * tzd,
    const  int tzd_len,
    DB_TIMESTAMPTZ * timestamp_tz
)

function tz_datetimeltz_to_local¶

int tz_datetimeltz_to_local (
    const  DB_DATETIME * dt_ltz,
    DB_DATETIME * dt_local
)

function tz_datetimetz_fix_zone¶

int tz_datetimetz_fix_zone (
    const  DB_DATETIMETZ * src_dt_tz,
    DB_DATETIMETZ * dest_dt_tz
)

function tz_explain_tz_id¶

int tz_explain_tz_id (
    const  TZ_ID * tz_id,
    char * tzr,
    const  int tzr_size,
    char * tzdst,
    const  int tzdst_size,
    int * tzh,
    int * tzm
)

function tz_get_best_match_zone¶

int tz_get_best_match_zone (
    const  char * name,
    int * size
)

function tz_get_data¶

const  TZ_DATA * tz_get_data (
    void
)

function tz_get_ds_change_julian_date_diff¶

int tz_get_ds_change_julian_date_diff (
    const  int src_julian_date,
    const  TZ_DS_RULE * ds_rule,
    const  int year,
    int * ds_rule_julian_date,
    full_date_t * date_diff
)

function tz_get_first_weekday_around_date¶

int tz_get_first_weekday_around_date (
    const  int year,
    const  int month,
    const  int weekday,
    const  int ref_day,
    const  bool before
)

function tz_get_new_timezone_data¶

const  TZ_DATA * tz_get_new_timezone_data (
    void
)

function tz_get_offset_in_mins¶

int tz_get_offset_in_mins ()

function tz_get_server_tz_region_session¶

TZ_REGION * tz_get_server_tz_region_session (
    void
)

function tz_get_session_local_timezone¶

const  char * tz_get_session_local_timezone (
    void
)

function tz_get_session_tz_region¶

void tz_get_session_tz_region (
    TZ_REGION * tz_region
)

function tz_get_system_timezone¶

const  char * tz_get_system_timezone (
    void
)

function tz_get_system_tz_region¶

void tz_get_system_tz_region (
    TZ_REGION * tz_region
)

function tz_get_timezone_offset¶

int tz_get_timezone_offset (
    const  char * tz_str,
    int tz_size,
    char * result,
    DB_DATETIME * utc_datetime
)

function tz_get_utc_tz_id¶

const  TZ_ID * tz_get_utc_tz_id (
    void
)

function tz_get_utc_tz_region¶

const  TZ_REGION * tz_get_utc_tz_region (
    void
)

function tz_id_to_region¶

void tz_id_to_region (
    const  TZ_ID * tz_id,
    TZ_REGION * tz_region
)

function tz_id_to_str¶

int tz_id_to_str (
    const  TZ_ID * tz_id,
    char * tz_str,
    const  int tz_str_size
)

function tz_load¶

int tz_load (
    void
)

function tz_load_with_library_path¶

int tz_load_with_library_path (
    TZ_DATA * tzd,
    const  char * timezone_library_path
)

function tz_resolve_os_timezone¶

int tz_resolve_os_timezone (
    char * timezone,
    int buf_len
)

function tz_set_data¶

void tz_set_data (
    const  TZ_DATA * data
)

function tz_set_new_timezone_data¶

void tz_set_new_timezone_data (
    const  TZ_DATA * data
)

function tz_set_tz_region_system¶

void tz_set_tz_region_system (
    const  TZ_REGION * tz_region
)

function tz_str_read_number¶

int tz_str_read_number (
    const  char * str,
    const  char * str_end,
    const  bool strict,
    const  bool read_sign,
    int * val,
    const  char ** str_next
)

function tz_str_read_time¶

int tz_str_read_time (
    const  char * str,
    const  char * str_end,
    bool need_minutes,
    bool allow_sec60,
    int * hour,
    int * min,
    int * sec,
    const  char ** str_next
)

function tz_str_to_region¶

int tz_str_to_region (
    const  char * tz_str,
    const  int tz_str_size,
    TZ_REGION * tz_region
)

function tz_str_to_seconds¶

int tz_str_to_seconds (
    const  char * str,
    const  char * str_end,
    int * seconds,
    const  char ** str_next,
    const  bool is_offset
)

function tz_timestamp_decode_no_leap_sec¶

void tz_timestamp_decode_no_leap_sec (
    int timestamp,
    int * yearp,
    int * monthsp,
    int * dayp,
    int * hoursp,
    int * minutesp,
    int * secondsp
)

function tz_timestamp_decode_sec¶

void tz_timestamp_decode_sec (
    int timestamp,
    int * yearp,
    int * monthsp,
    int * dayp,
    int * hoursp,
    int * minutesp,
    int * secondsp
)

function tz_timestamp_encode_leap_sec_adj¶

DB_BIGINT tz_timestamp_encode_leap_sec_adj (
    const  int year_century,
    const  int year,
    const  int mon,
    const  int day
)

function tz_timestamptz_fix_zone¶

int tz_timestamptz_fix_zone (
    const  DB_TIMESTAMPTZ * src_ts_tz,
    DB_TIMESTAMPTZ * dest_ts_tz
)

function tz_tzid_convert_region_to_offset¶

void tz_tzid_convert_region_to_offset (
    TZ_ID * tz_id
)

function tz_unload¶

void tz_unload (
    void
)

function tz_utc_datetimetz_to_local¶

int tz_utc_datetimetz_to_local (
    const  DB_DATETIME * dt_utc,
    const  TZ_ID * tz_id,
    DB_DATETIME * dt_local
)

Public Static Functions Documentation¶

function get_closest_ds_rule¶

static int get_closest_ds_rule (
    const  int src_julian_date,
    const  int src_time_sec,
    const  TZ_DS_RULESET * ds_ruleset,
    const  TZ_DATA * tzd,
    const  DS_SEARCH_DIRECTION direction
)

function get_date_diff_from_ds_rule¶

static int get_date_diff_from_ds_rule (
    const  int src_julian_date,
    const  int src_time_sec,
    const  TZ_DS_RULE * ds_rule,
    const  DS_SEARCH_DIRECTION direction,
    full_date_t * date_diff
)

function get_saving_time_from_offset_rule¶

static int get_saving_time_from_offset_rule (
    const  TZ_OFFSET_RULE * offset_rule,
    const  TZ_DATA * tzd,
    int * save_time
)

function get_year_to_apply_rule¶

static int get_year_to_apply_rule (
    const  int src_year,
    const  TZ_DS_RULE * ds_rule
)

function is_in_overlap_interval¶

static bool is_in_overlap_interval (
    const  TZ_TIME_TYPE time_type,
    const  full_date_t offset_rule_diff,
    const  full_date_t gmt_diff,
    const  int save_time_diff
)

function set_new_zone_id¶

static int set_new_zone_id (
    TZ_DECODE_INFO * tz_info
)

function starts_with¶

static int starts_with (
    const  char * prefix,
    const  char * str
)

function tz_check_ds_match_string¶

static bool tz_check_ds_match_string (
    const  TZ_OFFSET_RULE * off_rule,
    const  TZ_DS_RULE * ds_rule,
    const  char * ds_string,
    const  char * default_abrev
)

function tz_conv_tz_datetime_w_zone_info¶

static int tz_conv_tz_datetime_w_zone_info (
    const  DB_DATETIME * src_dt,
    const  TZ_DECODE_INFO * src_zone_info_in,
    const  TZ_DECODE_INFO * dest_zone_info_in,
    DB_DATETIME * dest_dt,
    TZ_DECODE_INFO * src_zone_info_out,
    TZ_DECODE_INFO * dest_zone_info_out
)

function tz_datetime_utc_conv¶

static int tz_datetime_utc_conv (
    const  DB_DATETIME * src_dt,
    TZ_DECODE_INFO * tz_info,
    bool src_is_utc,
    bool only_tz_adjust,
    DB_DATETIME * dest_dt
)

function tz_decode_tz_id¶

static void tz_decode_tz_id (
    const  TZ_ID * tz_id,
    const  bool is_full_decode,
    TZ_DECODE_INFO * tz_info
)

function tz_decode_tz_region¶

static void tz_decode_tz_region (
    const  TZ_REGION * tz_region,
    TZ_DECODE_INFO * tz_info
)

function tz_encode_tz_id¶

static void tz_encode_tz_id (
    const  TZ_DECODE_INFO * tz_info,
    TZ_ID * tz_id
)

function tz_encode_tz_region¶

static void tz_encode_tz_region (
    const  TZ_DECODE_INFO * tz_info,
    TZ_REGION * tz_region
)

function tz_fast_find_ds_rule¶

static int tz_fast_find_ds_rule (
    const  TZ_DATA * tzd,
    const  TZ_DS_RULESET * ds_ruleset,
    const  int src_julian_date,
    const  int src_year,
    const  int src_month,
    int * ds_rule_id
)

function tz_get_current_date¶

static DB_DATE tz_get_current_date (
    void
)

function tz_get_invalid_tz_region¶

static const  TZ_REGION * tz_get_invalid_tz_region (
    void
)

function tz_get_leapsec_support¶

static bool tz_get_leapsec_support (
    void
)

function tz_get_zone_id_by_name¶

static int tz_get_zone_id_by_name (
    const  char * name,
    const  int name_size
)

function tz_load_data_from_lib¶

static int tz_load_data_from_lib (
    TZ_DATA * tzd,
    void * lib_handle
)

function tz_load_library¶

static int tz_load_library (
    const  char * lib_file,
    void ** handle
)

function tz_offset¶

static int tz_offset (
    const  bool src_is_utc,
    const  TZ_TIME_TYPE until_time_type,
    const  int gmt_offset_sec,
    const  int ds_save_time
)

function tz_print_tz_offset¶

static int tz_print_tz_offset (
    char * result,
    int tz_offset
)

function tz_str_timezone_decode¶

static int tz_str_timezone_decode (
    const  char * tz_str,
    const  int tz_str_size,
    TZ_DECODE_INFO * tz_info,
    const  char ** tz_end
)

function tz_timestamp_decode_leap_sec_adj¶

static void tz_timestamp_decode_leap_sec_adj (
    int timestamp,
    int * yearp,
    int * monthsp,
    int * dayp,
    int * hoursp,
    int * minutesp,
    int * secondsp
)

function tz_zone_info_to_str¶

static int tz_zone_info_to_str (
    const  TZ_DECODE_INFO * tz_info,
    char * tz_str,
    const  int tz_str_size
)

Macro Definition Documentation¶

define ABS¶

#define ABS (
    i
) `(( i ) >= 0 ? ( i ) : -( i ))`

define APPLY_NEXT_OFF_RULE¶

#define APPLY_NEXT_OFF_RULE (

) `/* multi line expression */`

define FULL_DATE¶

#define FULL_DATE (
    jul_date,
    time_sec
) `/* multi line expression */`

define LEN_MIN_HOUR¶

#define LEN_MIN_HOUR `6`

define LEN_MIN_HOUR_SEC¶

#define LEN_MIN_HOUR_SEC `9`

define MILLIS_IN_A_DAY¶

#define MILLIS_IN_A_DAY `( long )(86400000) /* 24 L * 60L * 60L * 1000 */`

define SECONDS_IN_A_DAY¶

#define SECONDS_IN_A_DAY `24 * 3600`

define TIME_OFFSET¶

#define TIME_OFFSET (
    is_utc,
    offset
) `(( is_utc ) ? (-offset) : (offset))`

define TZLIB_GET_ADDR¶

#define TZLIB_GET_ADDR (
    v,
    SYM_NAME,
    SYM_TYPE,
    lh
) `/* multi line expression */`

define TZLIB_GET_VAL¶

#define TZLIB_GET_VAL (
    v,
    SYM_NAME,
    SYM_TYPE,
    lh
) `/* multi line expression */`

define TZ_BIT_SHIFT_TZ_ID_FLAG¶

#define TZ_BIT_SHIFT_TZ_ID_FLAG `30`

define TZ_GET_SYM_ADDR¶

#define TZ_GET_SYM_ADDR (
    lib,
    sym
) `dlsym ( lib , sym )`

define TZ_INVALID_OFFSET¶

#define TZ_INVALID_OFFSET `((((23 * 60) + 59) * 60) + 59)`

define TZ_MASK_TZ_ID_FLAG¶

#define TZ_MASK_TZ_ID_FLAG `0xc0000000`

define TZ_MAX_OFFSET¶

#define TZ_MAX_OFFSET `14 * 3600`

define TZ_MIN_OFFSET¶

#define TZ_MIN_OFFSET `-12 * 3600`

define TZ_OFFSET_MASK¶

#define TZ_OFFSET_MASK `0x3fffffff`

define strlen¶

#define strlen (
    s1
) `(( int ) strlen( s1 ))`

The documentation for this class was generated from the following file cubrid/src/base/tz_support.c