diff options
Diffstat (limited to 'sql/tztime.cc')
| -rw-r--r-- | sql/tztime.cc | 92 |
1 files changed, 46 insertions, 46 deletions
diff --git a/sql/tztime.cc b/sql/tztime.cc index 65a1a59a5d0..08b93cfd203 100644 --- a/sql/tztime.cc +++ b/sql/tztime.cc @@ -77,7 +77,7 @@ typedef struct lsinfo /* Structure with information describing ranges of my_time_t shifted to local - time (my_time_t + offset). Used for local TIME -> my_time_t conversion. + time (my_time_t + offset). Used for local MYSQL_TIME -> my_time_t conversion. See comments for TIME_to_gmt_sec() for more info. */ typedef struct revtinfo @@ -292,9 +292,9 @@ tz_load(const char *name, TIME_ZONE_INFO *sp, MEM_ROOT *storage) be used if there are no transitions or we have moment in time before any transitions. Second task is to build "shifted my_time_t" -> my_time_t map used in - TIME -> my_time_t conversion. + MYSQL_TIME -> my_time_t conversion. Note: See description of TIME_to_gmt_sec() function first. - In order to perform TIME -> my_time_t conversion we need to build table + In order to perform MYSQL_TIME -> my_time_t conversion we need to build table which defines "shifted by tz offset and leap seconds my_time_t" -> my_time_t function wich is almost the same (except ranges of ambiguity) as reverse function to piecewise linear function used for my_time_t -> @@ -531,14 +531,14 @@ static const uint year_lengths[2]= offset - local time zone offset DESCRIPTION - Convert my_time_t with offset to TIME struct. Differs from timesub + Convert my_time_t with offset to MYSQL_TIME struct. Differs from timesub (from elsie code) because doesn't contain any leap correction and TM_GMTOFF and is_dst setting and contains some MySQL specific initialization. Funny but with removing of these we almost have glibc's offtime function. */ static void -sec_to_TIME(TIME * tmp, my_time_t t, long offset) +sec_to_TIME(MYSQL_TIME * tmp, my_time_t t, long offset) { long days; long rem; @@ -594,7 +594,7 @@ sec_to_TIME(TIME * tmp, my_time_t t, long offset) tmp->month++; tmp->day= (uint)(days + 1); - /* filling MySQL specific TIME members */ + /* filling MySQL specific MYSQL_TIME members */ tmp->neg= 0; tmp->second_part= 0; tmp->time_type= MYSQL_TIMESTAMP_DATETIME; } @@ -686,7 +686,7 @@ find_transition_type(my_time_t t, const TIME_ZONE_INFO *sp) /* Converts time in my_time_t representation (seconds in UTC since Epoch) to - broken down TIME representation in local time zone. + broken down MYSQL_TIME representation in local time zone. SYNOPSIS gmt_sec_to_TIME() @@ -701,12 +701,12 @@ find_transition_type(my_time_t t, const TIME_ZONE_INFO *sp) (60th and 61st second, look how we calculate them as "hit" in this function). Under realistic assumptions about frequency of transitions the same array - can be used fot TIME -> my_time_t conversion. For this we need to + can be used fot MYSQL_TIME -> my_time_t conversion. For this we need to implement tweaked binary search which will take into account that some - TIME has two matching my_time_t ranges and some of them have none. + MYSQL_TIME has two matching my_time_t ranges and some of them have none. */ static void -gmt_sec_to_TIME(TIME *tmp, my_time_t sec_in_utc, const TIME_ZONE_INFO *sp) +gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t sec_in_utc, const TIME_ZONE_INFO *sp) { const TRAN_TYPE_INFO *ttisp; const LS_INFO *lp; @@ -809,11 +809,11 @@ sec_since_epoch(int year, int mon, int mday, int hour, int min ,int sec) /* - Works like sec_since_epoch but expects TIME structure as parameter. + Works like sec_since_epoch but expects MYSQL_TIME structure as parameter. */ my_time_t -sec_since_epoch_TIME(TIME *t) +sec_since_epoch_TIME(MYSQL_TIME *t) { return sec_since_epoch(t->year, t->month, t->day, t->hour, t->minute, t->second); @@ -821,7 +821,7 @@ sec_since_epoch_TIME(TIME *t) /* - Converts local time in broken down TIME representation to my_time_t + Converts local time in broken down MYSQL_TIME representation to my_time_t representation. SYNOPSIS @@ -863,7 +863,7 @@ sec_since_epoch_TIME(TIME *t) We use completely different approach. It is better since it is both faster than iterative implementations and fully determenistic. If you - look at my_time_t to TIME conversion then you'll find that it consist + look at my_time_t to MYSQL_TIME conversion then you'll find that it consist of two steps: The first is calculating shifted my_time_t value and the second - TIME calculation from shifted my_time_t value (well it is a bit simplified @@ -893,7 +893,7 @@ sec_since_epoch_TIME(TIME *t) 0 in case of error. */ static my_time_t -TIME_to_gmt_sec(const TIME *t, const TIME_ZONE_INFO *sp, +TIME_to_gmt_sec(const MYSQL_TIME *t, const TIME_ZONE_INFO *sp, my_bool *in_dst_time_gap) { my_time_t local_t; @@ -1020,20 +1020,20 @@ class Time_zone_system : public Time_zone { public: Time_zone_system() {} /* Remove gcc warning */ - virtual my_time_t TIME_to_gmt_sec(const TIME *t, + virtual my_time_t TIME_to_gmt_sec(const MYSQL_TIME *t, my_bool *in_dst_time_gap) const; - virtual void gmt_sec_to_TIME(TIME *tmp, my_time_t t) const; + virtual void gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t t) const; virtual const String * get_name() const; }; /* - Converts local time in system time zone in TIME representation + Converts local time in system time zone in MYSQL_TIME representation to its my_time_t representation. SYNOPSIS TIME_to_gmt_sec() - t - pointer to TIME structure with local time in + t - pointer to MYSQL_TIME structure with local time in broken-down representation. in_dst_time_gap - pointer to bool which is set to true if datetime value passed doesn't really exist (i.e. falls into @@ -1041,7 +1041,7 @@ public: DESCRIPTION This method uses system function (localtime_r()) for conversion - local time in system time zone in TIME structure to its my_time_t + local time in system time zone in MYSQL_TIME structure to its my_time_t representation. Unlike the same function for Time_zone_db class it it won't handle unnormalized input properly. Still it will return lowest possible my_time_t in case of ambiguity or if we @@ -1053,7 +1053,7 @@ public: Corresponding my_time_t value or 0 in case of error */ my_time_t -Time_zone_system::TIME_to_gmt_sec(const TIME *t, my_bool *in_dst_time_gap) const +Time_zone_system::TIME_to_gmt_sec(const MYSQL_TIME *t, my_bool *in_dst_time_gap) const { long not_used; return my_system_gmt_sec(t, ¬_used, in_dst_time_gap); @@ -1066,7 +1066,7 @@ Time_zone_system::TIME_to_gmt_sec(const TIME *t, my_bool *in_dst_time_gap) const SYNOPSIS gmt_sec_to_TIME() - tmp - pointer to TIME structure to fill-in + tmp - pointer to MYSQL_TIME structure to fill-in t - my_time_t value to be converted NOTE @@ -1077,7 +1077,7 @@ Time_zone_system::TIME_to_gmt_sec(const TIME *t, my_bool *in_dst_time_gap) const the 1902 easily. */ void -Time_zone_system::gmt_sec_to_TIME(TIME *tmp, my_time_t t) const +Time_zone_system::gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t t) const { struct tm tmp_tm; time_t tmp_t= (time_t)t; @@ -1107,26 +1107,26 @@ Time_zone_system::get_name() const /* Instance of this class represents UTC time zone. It uses system gmtime_r function for conversions and is always available. It is used only for - my_time_t -> TIME conversions in various UTC_... functions, it is not - intended for TIME -> my_time_t conversions and shouldn't be exposed to user. + my_time_t -> MYSQL_TIME conversions in various UTC_... functions, it is not + intended for MYSQL_TIME -> my_time_t conversions and shouldn't be exposed to user. */ class Time_zone_utc : public Time_zone { public: Time_zone_utc() {} /* Remove gcc warning */ - virtual my_time_t TIME_to_gmt_sec(const TIME *t, + virtual my_time_t TIME_to_gmt_sec(const MYSQL_TIME *t, my_bool *in_dst_time_gap) const; - virtual void gmt_sec_to_TIME(TIME *tmp, my_time_t t) const; + virtual void gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t t) const; virtual const String * get_name() const; }; /* - Convert UTC time from TIME representation to its my_time_t representation. + Convert UTC time from MYSQL_TIME representation to its my_time_t representation. SYNOPSIS TIME_to_gmt_sec() - t - pointer to TIME structure with local time + t - pointer to MYSQL_TIME structure with local time in broken-down representation. in_dst_time_gap - pointer to bool which is set to true if datetime value passed doesn't really exist (i.e. falls into @@ -1141,7 +1141,7 @@ public: 0 */ my_time_t -Time_zone_utc::TIME_to_gmt_sec(const TIME *t, my_bool *in_dst_time_gap) const +Time_zone_utc::TIME_to_gmt_sec(const MYSQL_TIME *t, my_bool *in_dst_time_gap) const { /* Should be never called */ DBUG_ASSERT(0); @@ -1155,14 +1155,14 @@ Time_zone_utc::TIME_to_gmt_sec(const TIME *t, my_bool *in_dst_time_gap) const SYNOPSIS gmt_sec_to_TIME() - tmp - pointer to TIME structure to fill-in + tmp - pointer to MYSQL_TIME structure to fill-in t - my_time_t value to be converted NOTE See note for apropriate Time_zone_system method. */ void -Time_zone_utc::gmt_sec_to_TIME(TIME *tmp, my_time_t t) const +Time_zone_utc::gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t t) const { struct tm tmp_tm; time_t tmp_t= (time_t)t; @@ -1203,9 +1203,9 @@ class Time_zone_db : public Time_zone { public: Time_zone_db(TIME_ZONE_INFO *tz_info_arg, const String * tz_name_arg); - virtual my_time_t TIME_to_gmt_sec(const TIME *t, + virtual my_time_t TIME_to_gmt_sec(const MYSQL_TIME *t, my_bool *in_dst_time_gap) const; - virtual void gmt_sec_to_TIME(TIME *tmp, my_time_t t) const; + virtual void gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t t) const; virtual const String * get_name() const; private: TIME_ZONE_INFO *tz_info; @@ -1239,7 +1239,7 @@ Time_zone_db::Time_zone_db(TIME_ZONE_INFO *tz_info_arg, SYNOPSIS TIME_to_gmt_sec() - t - pointer to TIME structure with local time + t - pointer to MYSQL_TIME structure with local time in broken-down representation. in_dst_time_gap - pointer to bool which is set to true if datetime value passed doesn't really exist (i.e. falls into @@ -1253,7 +1253,7 @@ Time_zone_db::Time_zone_db(TIME_ZONE_INFO *tz_info_arg, Corresponding my_time_t value or 0 in case of error */ my_time_t -Time_zone_db::TIME_to_gmt_sec(const TIME *t, my_bool *in_dst_time_gap) const +Time_zone_db::TIME_to_gmt_sec(const MYSQL_TIME *t, my_bool *in_dst_time_gap) const { return ::TIME_to_gmt_sec(t, tz_info, in_dst_time_gap); } @@ -1265,11 +1265,11 @@ Time_zone_db::TIME_to_gmt_sec(const TIME *t, my_bool *in_dst_time_gap) const SYNOPSIS gmt_sec_to_TIME() - tmp - pointer to TIME structure to fill-in + tmp - pointer to MYSQL_TIME structure to fill-in t - my_time_t value to be converted */ void -Time_zone_db::gmt_sec_to_TIME(TIME *tmp, my_time_t t) const +Time_zone_db::gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t t) const { ::gmt_sec_to_TIME(tmp, t, tz_info); } @@ -1299,9 +1299,9 @@ class Time_zone_offset : public Time_zone { public: Time_zone_offset(long tz_offset_arg); - virtual my_time_t TIME_to_gmt_sec(const TIME *t, + virtual my_time_t TIME_to_gmt_sec(const MYSQL_TIME *t, my_bool *in_dst_time_gap) const; - virtual void gmt_sec_to_TIME(TIME *tmp, my_time_t t) const; + virtual void gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t t) const; virtual const String * get_name() const; /* This have to be public because we want to be able to access it from @@ -1336,11 +1336,11 @@ Time_zone_offset::Time_zone_offset(long tz_offset_arg): /* Converts local time in time zone described as offset from UTC - from TIME representation to its my_time_t representation. + from MYSQL_TIME representation to its my_time_t representation. SYNOPSIS TIME_to_gmt_sec() - t - pointer to TIME structure with local time + t - pointer to MYSQL_TIME structure with local time in broken-down representation. in_dst_time_gap - pointer to bool which should be set to true if datetime value passed doesn't really exist @@ -1352,7 +1352,7 @@ Time_zone_offset::Time_zone_offset(long tz_offset_arg): Corresponding my_time_t value or 0 in case of error */ my_time_t -Time_zone_offset::TIME_to_gmt_sec(const TIME *t, my_bool *in_dst_time_gap) const +Time_zone_offset::TIME_to_gmt_sec(const MYSQL_TIME *t, my_bool *in_dst_time_gap) const { my_time_t local_t; int shift= 0; @@ -1397,11 +1397,11 @@ Time_zone_offset::TIME_to_gmt_sec(const TIME *t, my_bool *in_dst_time_gap) const SYNOPSIS gmt_sec_to_TIME() - tmp - pointer to TIME structure to fill-in + tmp - pointer to MYSQL_TIME structure to fill-in t - my_time_t value to be converted */ void -Time_zone_offset::gmt_sec_to_TIME(TIME *tmp, my_time_t t) const +Time_zone_offset::gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t t) const { sec_to_TIME(tmp, t, offset); } @@ -2564,7 +2564,7 @@ main(int argc, char **argv) my_bool localtime_negative; TIME_ZONE_INFO tz_info; struct tm tmp; - TIME time_tmp; + MYSQL_TIME time_tmp; time_t t, t1, t2; char fullname[FN_REFLEN+1]; char *str_end; |