feat:[TD-32642] add timezone support in windows

This commit is contained in:
wangmm0220 2024-12-03 18:28:36 +08:00
parent adff8a60d1
commit 074f39f4f6
12 changed files with 26 additions and 4475 deletions

View File

@ -106,12 +106,6 @@ ELSE()
SET(TAOS_LIB_PLATFORM_SPEC taos)
ENDIF()
IF(NOT DEFINED TZ_OUTPUT_PATH)
SET(TZ_OUTPUT_PATH ${PROJECT_BINARY_DIR}/build/share/timezone)
ENDIF()
MESSAGE(STATUS "timezone output path: " ${TZ_OUTPUT_PATH})
# build TSZ by default
IF("${TSZ_ENABLED}" MATCHES "false")
set(VAR_TSZ "" CACHE INTERNAL "global variant empty")

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@ -655,17 +655,25 @@ if(${TD_LINUX} AND ${BUILD_WITH_S3})
add_subdirectory(azure-cmake EXCLUDE_FROM_ALL)
endif()
IF(TD_LINUX)
SET(TZ_OUTPUT_PATH /usr/share/zoneinfo)
ELSEIF(TD_DARWIN)
SET(TZ_OUTPUT_PATH /var/db/timezone/zoneinfo)
ENDIF()
MESSAGE(STATUS "timezone file path: " ${TZ_OUTPUT_PATH})
if(NOT ${TD_WINDOWS})
execute_process(
COMMAND make TZDIR=${TZ_OUTPUT_PATH}/ clean zic posix_only
COMMAND make TZDIR=${TZ_OUTPUT_PATH}/ clean libtz.a
WORKING_DIRECTORY "${TD_CONTRIB_DIR}/tz"
)
set(TZ_SRC_DIR "${TD_SOURCE_DIR}/source/os/src/timezone")
file(MAKE_DIRECTORY ${TZ_SRC_DIR})
file(COPY ${TD_CONTRIB_DIR}/tz/private.h ${TD_CONTRIB_DIR}/tz/tzdir.h ${TD_CONTRIB_DIR}/tz/tzfile.h
${TD_CONTRIB_DIR}/tz/localtime.c ${TD_CONTRIB_DIR}/tz/strftime.c
DESTINATION ${TZ_SRC_DIR})
# set(TZ_SRC_DIR "${TD_SOURCE_DIR}/source/os/src/timezone")
# file(MAKE_DIRECTORY ${TZ_SRC_DIR})
# file(COPY ${TD_CONTRIB_DIR}/tz/private.h ${TD_CONTRIB_DIR}/tz/tzdir.h ${TD_CONTRIB_DIR}/tz/tzfile.h
# ${TD_CONTRIB_DIR}/tz/localtime.c ${TD_CONTRIB_DIR}/tz/strftime.c
# DESTINATION ${TZ_SRC_DIR})
endif(NOT ${TD_WINDOWS})
# ================================================================================================
# Build test

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@ -22,7 +22,7 @@ extern "C" {
typedef wchar_t TdWchar;
typedef int32_t TdUcs4;
#if !defined(DISALLOW_NCHAR_WITHOUT_ICONV)
#if !defined(DISALLOW_NCHAR_WITHOUT_ICONV)// && defined(DARWIN)
#include "iconv.h"
#else
typedef void *iconv_t;

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@ -29,11 +29,12 @@ extern void* pTimezoneNameMap;
typedef void *timezone_t;
#else
typedef struct state *timezone_t;
struct tm *localtime_rz(timezone_t , time_t const *, struct tm *);
time_t mktime_z(timezone_t, struct tm *);
struct tm* localtime_rz(timezone_t , time_t const *, struct tm *);
time_t mktime_z(timezone_t, struct tm *);
timezone_t tzalloc(char const *);
void tzfree(timezone_t);
void getTimezoneStr(char *tz);
void tzfree(timezone_t);
void getTimezoneStr(char *tz);
#endif

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@ -43,9 +43,6 @@ if not exist %target_dir%\\cfg (
if not exist %target_dir%\\include (
mkdir %target_dir%\\include
)
if not exist %target_dir%\\share (
mkdir %target_dir%\\share
)
if not exist %target_dir%\\driver (
mkdir %target_dir%\\driver
)
@ -70,7 +67,6 @@ copy %binary_dir%\\build\\lib\\taos.lib %target_dir%\\driver > nul
copy %binary_dir%\\build\\lib\\taos_static.lib %target_dir%\\driver > nul
copy %binary_dir%\\build\\lib\\taos.dll %target_dir%\\driver > nul
copy %binary_dir%\\build\\bin\\taos.exe %target_dir% > nul
xcopy %binary_dir%\\build\\share\\* %target_dir%\\share > nul
if exist %binary_dir%\\build\\bin\\taosBenchmark.exe (
copy %binary_dir%\\build\\bin\\taosBenchmark.exe %target_dir% > nul
)

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@ -53,7 +53,6 @@ else
fi
fi
timezone_dir="/usr/local/share/timezone"
install_main_dir=${installDir}
bin_dir="${installDir}/bin"
cfg_dir="${installDir}/cfg"
@ -387,11 +386,6 @@ function install_header() {
${csudo}chmod 644 ${install_main_dir}/include/*
}
function install_timezone(){
${csudo}mkdir -p ${timezone_dir}
${csudo}cp -rf ${binary_dir}/build/share/timezone/* ${timezone_dir} && ${csudo}chmod 644 ${timezone_dir}/*
}
function install_config() {
if [ ! -f ${cfg_install_dir}/${configFile} ]; then
${csudo}mkdir -p ${cfg_install_dir}
@ -648,7 +642,6 @@ function update_TDengine() {
install_log
install_header
install_lib
install_timezone
# install_connector
install_examples
install_bin
@ -714,7 +707,6 @@ function install_TDengine() {
install_log
install_header
install_lib
install_timezone
# install_connector
install_examples
install_bin

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@ -1,10 +1,5 @@
aux_source_directory(src OS_SRC)
if(NOT ${TD_WINDOWS})
aux_source_directory(src/timezone OS_TZ)
add_library(os STATIC ${OS_SRC} ${OS_TZ})
else()
add_library(os STATIC ${OS_SRC})
endif(NOT ${TD_WINDOWS})
add_library(os STATIC ${OS_SRC})
target_include_directories(
os
PUBLIC "${TD_SOURCE_DIR}/include/os"
@ -75,6 +70,11 @@ IF (JEMALLOC_ENABLED)
target_link_libraries(os PUBLIC -L${CMAKE_BINARY_DIR}/build/lib -ljemalloc)
ENDIF ()
if(NOT ${TD_WINDOWS})
find_library(tz libtz.a "${TD_SOURCE_DIR}/contrib/tz")
target_link_libraries(os PUBLIC ${tz})
endif(NOT ${TD_WINDOWS})
if(${BUILD_TEST})
add_subdirectory(test)
endif(${BUILD_TEST})

File diff suppressed because it is too large Load Diff

File diff suppressed because it is too large Load Diff

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@ -1,711 +0,0 @@
/* Convert a broken-down timestamp to a string. */
/* Copyright 1989 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE. */
/*
** Based on the UCB version with the copyright notice appearing above.
**
** This is ANSIish only when "multibyte character == plain character".
*/
#include "private.h"
#include <fcntl.h>
#include <locale.h>
#include <stdio.h>
/* If true, the value returned by an idealized unlimited-range mktime
always fits into an integer type with bounds MIN and MAX.
If false, the value might not fit.
This macro is usable in #if if its arguments are.
Add or subtract 2**31 - 1 for the maximum UT offset allowed in a TZif file,
divide by the maximum number of non-leap seconds in a year,
divide again by two just to be safe,
and account for the tm_year origin (1900) and time_t origin (1970). */
#define MKTIME_FITS_IN(min, max) \
((min) < 0 \
&& ((min) + 0x7fffffff) / 366 / 24 / 60 / 60 / 2 + 1970 - 1900 < INT_MIN \
&& INT_MAX < ((max) - 0x7fffffff) / 366 / 24 / 60 / 60 / 2 + 1970 - 1900)
/* MKTIME_MIGHT_OVERFLOW is true if mktime can fail due to time_t overflow
or if it is not known whether mktime can fail,
and is false if mktime definitely cannot fail.
This macro is usable in #if, and so does not use TIME_T_MAX or sizeof.
If the builder has not configured this macro, guess based on what
known platforms do. When in doubt, guess true. */
#ifndef MKTIME_MIGHT_OVERFLOW
# if defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__
# include <sys/param.h>
# endif
# if ((/* The following heuristics assume native time_t. */ \
defined_time_tz) \
|| ((/* Traditional time_t is 'long', so if 'long' is not wide enough \
assume overflow unless we're on a known-safe host. */ \
!MKTIME_FITS_IN(LONG_MIN, LONG_MAX)) \
&& (/* GNU C Library 2.29 (2019-02-01) and later has 64-bit time_t \
if __TIMESIZE is 64. */ \
!defined __TIMESIZE || __TIMESIZE < 64) \
&& (/* FreeBSD 12 r320347 (__FreeBSD_version 1200036; 2017-06-26), \
and later has 64-bit time_t on all platforms but i386 which \
is currently scheduled for end-of-life on 2028-11-30. */ \
!defined __FreeBSD_version || __FreeBSD_version < 1200036 \
|| defined __i386) \
&& (/* NetBSD 6.0 (2012-10-17) and later has 64-bit time_t. */ \
!defined __NetBSD_Version__ || __NetBSD_Version__ < 600000000) \
&& (/* OpenBSD 5.5 (2014-05-01) and later has 64-bit time_t. */ \
!defined OpenBSD || OpenBSD < 201405)))
# define MKTIME_MIGHT_OVERFLOW 1
# else
# define MKTIME_MIGHT_OVERFLOW 0
# endif
#endif
/* Check that MKTIME_MIGHT_OVERFLOW is consistent with time_t's range. */
static_assert(MKTIME_MIGHT_OVERFLOW
|| MKTIME_FITS_IN(TIME_T_MIN, TIME_T_MAX));
#if MKTIME_MIGHT_OVERFLOW
/* Do this after system includes as it redefines time_t, mktime, timeoff. */
# define USE_TIMEX_T true
# include "localtime.c"
#endif
#ifndef DEPRECATE_TWO_DIGIT_YEARS
# define DEPRECATE_TWO_DIGIT_YEARS 0
#endif
struct lc_time_T {
const char * mon[MONSPERYEAR];
const char * month[MONSPERYEAR];
const char * wday[DAYSPERWEEK];
const char * weekday[DAYSPERWEEK];
const char * X_fmt;
const char * x_fmt;
const char * c_fmt;
const char * am;
const char * pm;
const char * date_fmt;
};
static const struct lc_time_T C_time_locale = {
{
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
}, {
"January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"
}, {
"Sun", "Mon", "Tue", "Wed",
"Thu", "Fri", "Sat"
}, {
"Sunday", "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday"
},
/* X_fmt */
"%H:%M:%S",
/*
** x_fmt
** C99 and later require this format.
** Using just numbers (as here) makes Quakers happier;
** it's also compatible with SVR4.
*/
"%m/%d/%y",
/*
** c_fmt
** C99 and later require this format.
** Previously this code used "%D %X", but we now conform to C99.
** Note that
** "%a %b %d %H:%M:%S %Y"
** is used by Solaris 2.3.
*/
"%a %b %e %T %Y",
/* am */
"AM",
/* pm */
"PM",
/* date_fmt */
"%a %b %e %H:%M:%S %Z %Y"
};
enum warn { IN_NONE, IN_SOME, IN_THIS, IN_ALL };
static char * _add(const char *, char *, const char *);
static char * _conv(int, const char *, char *, const char *);
static char * _fmt(const char *, const struct tm *, char *, const char *,
enum warn *);
static char * _yconv(int, int, bool, bool, char *, char const *);
#ifndef YEAR_2000_NAME
# define YEAR_2000_NAME "CHECK_STRFTIME_FORMATS_FOR_TWO_DIGIT_YEARS"
#endif /* !defined YEAR_2000_NAME */
#if HAVE_STRFTIME_L
size_t
strftime_l(char *restrict s, size_t maxsize, char const *restrict format,
struct tm const *restrict t,
ATTRIBUTE_MAYBE_UNUSED locale_t locale)
{
/* Just call strftime, as only the C locale is supported. */
return strftime(s, maxsize, format, t);
}
#endif
size_t
strftime(char *restrict s, size_t maxsize, char const *restrict format,
struct tm const *restrict t)
{
char * p;
int saved_errno = errno;
enum warn warn = IN_NONE;
tzset();
p = _fmt(format, t, s, s + maxsize, &warn);
if (DEPRECATE_TWO_DIGIT_YEARS
&& warn != IN_NONE && getenv(YEAR_2000_NAME)) {
fprintf(stderr, "\n");
fprintf(stderr, "strftime format \"%s\" ", format);
fprintf(stderr, "yields only two digits of years in ");
if (warn == IN_SOME)
fprintf(stderr, "some locales");
else if (warn == IN_THIS)
fprintf(stderr, "the current locale");
else fprintf(stderr, "all locales");
fprintf(stderr, "\n");
}
if (p == s + maxsize) {
errno = ERANGE;
return 0;
}
*p = '\0';
errno = saved_errno;
return p - s;
}
static char *
_fmt(const char *format, const struct tm *t, char *pt,
const char *ptlim, enum warn *warnp)
{
struct lc_time_T const *Locale = &C_time_locale;
for ( ; *format; ++format) {
if (*format == '%') {
label:
switch (*++format) {
default:
/* Output unknown conversion specifiers as-is,
to aid debugging. This includes '%' at
format end. This conforms to C23 section
7.29.3.5 paragraph 6, which says behavior
is undefined here. */
--format;
break;
case 'A':
pt = _add((t->tm_wday < 0 ||
t->tm_wday >= DAYSPERWEEK) ?
"?" : Locale->weekday[t->tm_wday],
pt, ptlim);
continue;
case 'a':
pt = _add((t->tm_wday < 0 ||
t->tm_wday >= DAYSPERWEEK) ?
"?" : Locale->wday[t->tm_wday],
pt, ptlim);
continue;
case 'B':
pt = _add((t->tm_mon < 0 ||
t->tm_mon >= MONSPERYEAR) ?
"?" : Locale->month[t->tm_mon],
pt, ptlim);
continue;
case 'b':
case 'h':
pt = _add((t->tm_mon < 0 ||
t->tm_mon >= MONSPERYEAR) ?
"?" : Locale->mon[t->tm_mon],
pt, ptlim);
continue;
case 'C':
/*
** %C used to do a...
** _fmt("%a %b %e %X %Y", t);
** ...whereas now POSIX 1003.2 calls for
** something completely different.
** (ado, 1993-05-24)
*/
pt = _yconv(t->tm_year, TM_YEAR_BASE,
true, false, pt, ptlim);
continue;
case 'c':
{
enum warn warn2 = IN_SOME;
pt = _fmt(Locale->c_fmt, t, pt, ptlim, &warn2);
if (warn2 == IN_ALL)
warn2 = IN_THIS;
if (warn2 > *warnp)
*warnp = warn2;
}
continue;
case 'D':
pt = _fmt("%m/%d/%y", t, pt, ptlim, warnp);
continue;
case 'd':
pt = _conv(t->tm_mday, "%02d", pt, ptlim);
continue;
case 'E':
case 'O':
/*
** Locale modifiers of C99 and later.
** The sequences
** %Ec %EC %Ex %EX %Ey %EY
** %Od %oe %OH %OI %Om %OM
** %OS %Ou %OU %OV %Ow %OW %Oy
** are supposed to provide alternative
** representations.
*/
goto label;
case 'e':
pt = _conv(t->tm_mday, "%2d", pt, ptlim);
continue;
case 'F':
pt = _fmt("%Y-%m-%d", t, pt, ptlim, warnp);
continue;
case 'H':
pt = _conv(t->tm_hour, "%02d", pt, ptlim);
continue;
case 'I':
pt = _conv((t->tm_hour % 12) ?
(t->tm_hour % 12) : 12,
"%02d", pt, ptlim);
continue;
case 'j':
pt = _conv(t->tm_yday + 1, "%03d", pt, ptlim);
continue;
case 'k':
/*
** This used to be...
** _conv(t->tm_hour % 12 ?
** t->tm_hour % 12 : 12, 2, ' ');
** ...and has been changed to the below to
** match SunOS 4.1.1 and Arnold Robbins'
** strftime version 3.0. That is, "%k" and
** "%l" have been swapped.
** (ado, 1993-05-24)
*/
pt = _conv(t->tm_hour, "%2d", pt, ptlim);
continue;
#ifdef KITCHEN_SINK
case 'K':
/*
** After all this time, still unclaimed!
*/
pt = _add("kitchen sink", pt, ptlim);
continue;
#endif /* defined KITCHEN_SINK */
case 'l':
/*
** This used to be...
** _conv(t->tm_hour, 2, ' ');
** ...and has been changed to the below to
** match SunOS 4.1.1 and Arnold Robbin's
** strftime version 3.0. That is, "%k" and
** "%l" have been swapped.
** (ado, 1993-05-24)
*/
pt = _conv((t->tm_hour % 12) ?
(t->tm_hour % 12) : 12,
"%2d", pt, ptlim);
continue;
case 'M':
pt = _conv(t->tm_min, "%02d", pt, ptlim);
continue;
case 'm':
pt = _conv(t->tm_mon + 1, "%02d", pt, ptlim);
continue;
case 'n':
pt = _add("\n", pt, ptlim);
continue;
case 'p':
pt = _add((t->tm_hour >= (HOURSPERDAY / 2)) ?
Locale->pm :
Locale->am,
pt, ptlim);
continue;
case 'R':
pt = _fmt("%H:%M", t, pt, ptlim, warnp);
continue;
case 'r':
pt = _fmt("%I:%M:%S %p", t, pt, ptlim, warnp);
continue;
case 'S':
pt = _conv(t->tm_sec, "%02d", pt, ptlim);
continue;
case 's':
{
struct tm tm;
char buf[INT_STRLEN_MAXIMUM(
time_t) + 1];
time_t mkt;
tm.tm_sec = t->tm_sec;
tm.tm_min = t->tm_min;
tm.tm_hour = t->tm_hour;
tm.tm_mday = t->tm_mday;
tm.tm_mon = t->tm_mon;
tm.tm_year = t->tm_year;
/* Get the time_t value for TM.
Native time_t, or its redefinition
by localtime.c above, is wide enough
so that this cannot overflow. */
#ifdef TM_GMTOFF
mkt = timeoff(&tm, t->TM_GMTOFF);
#else
tm.tm_isdst = t->tm_isdst;
mkt = mktime(&tm);
#endif
if (TYPE_SIGNED(time_t)) {
intmax_t n = mkt;
sprintf(buf, "%"PRIdMAX, n);
} else {
uintmax_t n = mkt;
sprintf(buf, "%"PRIuMAX, n);
}
pt = _add(buf, pt, ptlim);
}
continue;
case 'T':
pt = _fmt("%H:%M:%S", t, pt, ptlim, warnp);
continue;
case 't':
pt = _add("\t", pt, ptlim);
continue;
case 'U':
pt = _conv((t->tm_yday + DAYSPERWEEK -
t->tm_wday) / DAYSPERWEEK,
"%02d", pt, ptlim);
continue;
case 'u':
/*
** From Arnold Robbins' strftime version 3.0:
** "ISO 8601: Weekday as a decimal number
** [1 (Monday) - 7]"
** (ado, 1993-05-24)
*/
pt = _conv((t->tm_wday == 0) ?
DAYSPERWEEK : t->tm_wday,
"%d", pt, ptlim);
continue;
case 'V': /* ISO 8601 week number */
case 'G': /* ISO 8601 year (four digits) */
case 'g': /* ISO 8601 year (two digits) */
/*
** From Arnold Robbins' strftime version 3.0: "the week number of the
** year (the first Monday as the first day of week 1) as a decimal number
** (01-53)."
** (ado, 1993-05-24)
**
** From <https://www.cl.cam.ac.uk/~mgk25/iso-time.html> by Markus Kuhn:
** "Week 01 of a year is per definition the first week which has the
** Thursday in this year, which is equivalent to the week which contains
** the fourth day of January. In other words, the first week of a new year
** is the week which has the majority of its days in the new year. Week 01
** might also contain days from the previous year and the week before week
** 01 of a year is the last week (52 or 53) of the previous year even if
** it contains days from the new year. A week starts with Monday (day 1)
** and ends with Sunday (day 7). For example, the first week of the year
** 1997 lasts from 1996-12-30 to 1997-01-05..."
** (ado, 1996-01-02)
*/
{
int year;
int base;
int yday;
int wday;
int w;
year = t->tm_year;
base = TM_YEAR_BASE;
yday = t->tm_yday;
wday = t->tm_wday;
for ( ; ; ) {
int len;
int bot;
int top;
len = isleap_sum(year, base) ?
DAYSPERLYEAR :
DAYSPERNYEAR;
/*
** What yday (-3 ... 3) does
** the ISO year begin on?
*/
bot = ((yday + 11 - wday) %
DAYSPERWEEK) - 3;
/*
** What yday does the NEXT
** ISO year begin on?
*/
top = bot -
(len % DAYSPERWEEK);
if (top < -3)
top += DAYSPERWEEK;
top += len;
if (yday >= top) {
++base;
w = 1;
break;
}
if (yday >= bot) {
w = 1 + ((yday - bot) /
DAYSPERWEEK);
break;
}
--base;
yday += isleap_sum(year, base) ?
DAYSPERLYEAR :
DAYSPERNYEAR;
}
#ifdef XPG4_1994_04_09
if ((w == 52 &&
t->tm_mon == TM_JANUARY) ||
(w == 1 &&
t->tm_mon == TM_DECEMBER))
w = 53;
#endif /* defined XPG4_1994_04_09 */
if (*format == 'V')
pt = _conv(w, "%02d",
pt, ptlim);
else if (*format == 'g') {
*warnp = IN_ALL;
pt = _yconv(year, base,
false, true,
pt, ptlim);
} else pt = _yconv(year, base,
true, true,
pt, ptlim);
}
continue;
case 'v':
/*
** From Arnold Robbins' strftime version 3.0:
** "date as dd-bbb-YYYY"
** (ado, 1993-05-24)
*/
pt = _fmt("%e-%b-%Y", t, pt, ptlim, warnp);
continue;
case 'W':
pt = _conv((t->tm_yday + DAYSPERWEEK -
(t->tm_wday ?
(t->tm_wday - 1) :
(DAYSPERWEEK - 1))) / DAYSPERWEEK,
"%02d", pt, ptlim);
continue;
case 'w':
pt = _conv(t->tm_wday, "%d", pt, ptlim);
continue;
case 'X':
pt = _fmt(Locale->X_fmt, t, pt, ptlim, warnp);
continue;
case 'x':
{
enum warn warn2 = IN_SOME;
pt = _fmt(Locale->x_fmt, t, pt, ptlim, &warn2);
if (warn2 == IN_ALL)
warn2 = IN_THIS;
if (warn2 > *warnp)
*warnp = warn2;
}
continue;
case 'y':
*warnp = IN_ALL;
pt = _yconv(t->tm_year, TM_YEAR_BASE,
false, true,
pt, ptlim);
continue;
case 'Y':
pt = _yconv(t->tm_year, TM_YEAR_BASE,
true, true,
pt, ptlim);
continue;
case 'Z':
#ifdef TM_ZONE
pt = _add(t->TM_ZONE, pt, ptlim);
#elif HAVE_TZNAME
if (t->tm_isdst >= 0)
pt = _add(tzname[t->tm_isdst != 0],
pt, ptlim);
#endif
/*
** C99 and later say that %Z must be
** replaced by the empty string if the
** time zone abbreviation is not
** determinable.
*/
continue;
case 'z':
#if defined TM_GMTOFF || USG_COMPAT || ALTZONE
{
long diff;
char const * sign;
bool negative;
# ifdef TM_GMTOFF
diff = t->TM_GMTOFF;
# else
/*
** C99 and later say that the UT offset must
** be computed by looking only at
** tm_isdst. This requirement is
** incorrect, since it means the code
** must rely on magic (in this case
** altzone and timezone), and the
** magic might not have the correct
** offset. Doing things correctly is
** tricky and requires disobeying the standard;
** see GNU C strftime for details.
** For now, punt and conform to the
** standard, even though it's incorrect.
**
** C99 and later say that %z must be replaced by
** the empty string if the time zone is not
** determinable, so output nothing if the
** appropriate variables are not available.
*/
if (t->tm_isdst < 0)
continue;
if (t->tm_isdst == 0)
# if USG_COMPAT
diff = -timezone;
# else
continue;
# endif
else
# if ALTZONE
diff = -altzone;
# else
continue;
# endif
# endif
negative = diff < 0;
if (diff == 0) {
# ifdef TM_ZONE
negative = t->TM_ZONE[0] == '-';
# else
negative = t->tm_isdst < 0;
# if HAVE_TZNAME
if (tzname[t->tm_isdst != 0][0] == '-')
negative = true;
# endif
# endif
}
if (negative) {
sign = "-";
diff = -diff;
} else sign = "+";
pt = _add(sign, pt, ptlim);
diff /= SECSPERMIN;
diff = (diff / MINSPERHOUR) * 100 +
(diff % MINSPERHOUR);
pt = _conv(diff, "%04d", pt, ptlim);
}
#endif
continue;
case '+':
pt = _fmt(Locale->date_fmt, t, pt, ptlim,
warnp);
continue;
case '%':
break;
}
}
if (pt == ptlim)
break;
*pt++ = *format;
}
return pt;
}
static char *
_conv(int n, const char *format, char *pt, const char *ptlim)
{
char buf[INT_STRLEN_MAXIMUM(int) + 1];
sprintf(buf, format, n);
return _add(buf, pt, ptlim);
}
static char *
_add(const char *str, char *pt, const char *ptlim)
{
while (pt < ptlim && (*pt = *str++) != '\0')
++pt;
return pt;
}
/*
** POSIX and the C Standard are unclear or inconsistent about
** what %C and %y do if the year is negative or exceeds 9999.
** Use the convention that %C concatenated with %y yields the
** same output as %Y, and that %Y contains at least 4 bytes,
** with more only if necessary.
*/
static char *
_yconv(int a, int b, bool convert_top, bool convert_yy,
char *pt, const char *ptlim)
{
register int lead;
register int trail;
int DIVISOR = 100;
trail = a % DIVISOR + b % DIVISOR;
lead = a / DIVISOR + b / DIVISOR + trail / DIVISOR;
trail %= DIVISOR;
if (trail < 0 && lead > 0) {
trail += DIVISOR;
--lead;
} else if (lead < 0 && trail > 0) {
trail -= DIVISOR;
++lead;
}
if (convert_top) {
if (lead == 0 && trail < 0)
pt = _add("-0", pt, ptlim);
else pt = _conv(lead, "%02d", pt, ptlim);
}
if (convert_yy)
pt = _conv(((trail < 0) ? -trail : trail), "%02d", pt, ptlim);
return pt;
}

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@ -1,6 +0,0 @@
#ifndef TZDEFAULT
# define TZDEFAULT "/etc/localtime" /* default zone */
#endif
#ifndef TZDIR
# define TZDIR "/Users/mingmingwanng/source_code/TDengine/debug/build/share/timezone/" /* TZif directory */
#endif

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@ -1,121 +0,0 @@
/* Layout and location of TZif files. */
#ifndef TZFILE_H
#define TZFILE_H
/*
** This file is in the public domain, so clarified as of
** 1996-06-05 by Arthur David Olson.
*/
/*
** This header is for use ONLY with the time conversion code.
** There is no guarantee that it will remain unchanged,
** or that it will remain at all.
** Do NOT copy it to any system include directory.
** Thank you!
*/
/*
** Information about time zone files.
*/
#ifndef TZDEFRULES
# define TZDEFRULES "posixrules"
#endif /* !defined TZDEFRULES */
/* See Internet RFC 9636 for more details about the following format. */
/*
** Each file begins with. . .
*/
#define TZ_MAGIC "TZif"
struct tzhead {
char tzh_magic[4]; /* TZ_MAGIC */
char tzh_version[1]; /* '\0' or '2'-'4' as of 2021 */
char tzh_reserved[15]; /* reserved; must be zero */
char tzh_ttisutcnt[4]; /* coded number of trans. time flags */
char tzh_ttisstdcnt[4]; /* coded number of trans. time flags */
char tzh_leapcnt[4]; /* coded number of leap seconds */
char tzh_timecnt[4]; /* coded number of transition times */
char tzh_typecnt[4]; /* coded number of local time types */
char tzh_charcnt[4]; /* coded number of abbr. chars */
};
/*
** . . .followed by. . .
**
** tzh_timecnt (char [4])s coded transition times a la time(2)
** tzh_timecnt (unsigned char)s types of local time starting at above
** tzh_typecnt repetitions of
** one (char [4]) coded UT offset in seconds
** one (unsigned char) used to set tm_isdst
** one (unsigned char) that's an abbreviation list index
** tzh_charcnt (char)s '\0'-terminated zone abbreviations
** tzh_leapcnt repetitions of
** one (char [4]) coded leap second transition times
** one (char [4]) total correction after above
** tzh_ttisstdcnt (char)s indexed by type; if 1, transition
** time is standard time, if 0,
** transition time is local (wall clock)
** time; if absent, transition times are
** assumed to be local time
** tzh_ttisutcnt (char)s indexed by type; if 1, transition
** time is UT, if 0, transition time is
** local time; if absent, transition
** times are assumed to be local time.
** When this is 1, the corresponding
** std/wall indicator must also be 1.
*/
/*
** If tzh_version is '2' or greater, the above is followed by a second instance
** of tzhead and a second instance of the data in which each coded transition
** time uses 8 rather than 4 chars,
** then a POSIX.1-2017 proleptic TZ string for use in handling
** instants after the last transition time stored in the file
** (with nothing between the newlines if there is no POSIX.1-2017
** representation for such instants).
**
** If tz_version is '3' or greater, the TZ string can be any POSIX.1-2024
** proleptic TZ string, which means the above is extended as follows.
** First, the TZ string's hour offset may range from -167
** through 167 as compared to the range 0 through 24 required
** by POSIX.1-2017 and earlier.
** Second, its DST start time may be January 1 at 00:00 and its stop
** time December 31 at 24:00 plus the difference between DST and
** standard time, indicating DST all year.
*/
/*
** In the current implementation, "tzset()" refuses to deal with files that
** exceed any of the limits below.
*/
#ifndef TZ_MAX_TIMES
/* This must be at least 242 for Europe/London with 'zic -b fat'. */
# define TZ_MAX_TIMES 2000
#endif /* !defined TZ_MAX_TIMES */
#ifndef TZ_MAX_TYPES
/* This must be at least 18 for Europe/Vilnius with 'zic -b fat'. */
# define TZ_MAX_TYPES 256 /* Limited by what (unsigned char)'s can hold */
#endif /* !defined TZ_MAX_TYPES */
#ifndef TZ_MAX_CHARS
/* This must be at least 40 for America/Anchorage. */
# define TZ_MAX_CHARS 50 /* Maximum number of abbreviation characters */
/* (limited by what unsigned chars can hold) */
#endif /* !defined TZ_MAX_CHARS */
#ifndef TZ_MAX_LEAPS
/* This must be at least 27 for leap seconds from 1972 through mid-2023.
There's a plan to discontinue leap seconds by 2035. */
# define TZ_MAX_LEAPS 50 /* Maximum number of leap second corrections */
#endif /* !defined TZ_MAX_LEAPS */
#endif /* !defined TZFILE_H */