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Check-in Number: 4973
Date: 2005-Jan-24 12:04:07 (local)
2005-Jan-24 11:04:07 (UTC)
User:rse
Branch:
Comment: flush pending changes related to TAI to calendar transformations
Tickets:
Inspections:
Files:
ossp-pkg/tai/tai.pod      1.1 -> 1.2     8 inserted, 0 deleted
ossp-pkg/tai/tai_cal.c      1.2 -> 1.3     151 inserted, 82 deleted
ossp-pkg/tai/tai_cal.h      added-> 1.1
ossp-pkg/tai/tai_data.c      1.2 -> 1.3     6 inserted, 0 deleted
ossp-pkg/tai/tai_lib.c      1.8 -> 1.9     2 inserted, 2 deleted
ossp-pkg/tai/tai_p.h      1.4 -> 1.5     6 inserted, 4 deleted
ossp-pkg/tai/tai.pod 1.1 -> 1.2 

--- tai.pod      2002/04/18 09:10:45     1.1
+++ tai.pod      2005/01/24 11:04:07     1.2
@@ -12,6 +12,14 @@
 =head1 DESCRIPTION
 
 ...
+deci  10^(-1)
+centi 10^(-2)
+milli 10^(-3)
+micro 10^(-6)
+nano  10^(-9)
+pico  10^(-12)
+femto 10^(-15)
+atto  10^(-18) (1000000000000000000)
 
 =head1 SEE ALSO

ossp-pkg/tai/tai_cal.c 1.2 -> 1.3 

--- tai_cal.c    2003/03/23 18:00:29     1.2
+++ tai_cal.c    2005/01/24 11:04:07     1.3
@@ -30,60 +30,7 @@
 
 #include "tai.h"
 #include "tai_p.h"
-
-#if 0
-struct leap {
-    tai_ui64_t leapsec;
-} tai_tab_leapsec[] = {
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1972 Jun 30 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1972 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1973 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1974 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1975 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1976 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1977 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1978 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1979 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1981 Jun 30 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1982 Jun 30 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1983 Jun 30 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1985 Jun 30 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1987 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1989 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1990 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1992 Jun 30 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1993 Jun 30 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1994 Jun 30 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1995 Dec 31 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* 1997 Jun 30 23:59:60 + */
-    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }  /* 1998 Dec 31 23:59:60 + */
-};
-#endif
-
-#define TAI_CAL_SUNDAY       0
-#define TAI_CAL_MONDAY       1
-#define TAI_CAL_TUESDAY      2
-#define TAI_CAL_WEDNESDAY    3
-#define TAI_CAL_THURSDAY     4
-#define TAI_CAL_FRIDAY       5
-#define TAI_CAL_SATURDAY     6
-
-#define TAI_CAL_JANUARY      0
-#define TAI_CAL_FEBRUARY     1
-#define TAI_CAL_MARCH        2
-#define TAI_CAL_APRIL        3
-#define TAI_CAL_MAY          4
-#define TAI_CAL_JUNE         5
-#define TAI_CAL_JULY         6
-#define TAI_CAL_AUGUST       7
-#define TAI_CAL_SEPTEMBER    8
-#define TAI_CAL_OCTOBER      9
-#define TAI_CAL_NOVEMBER     10
-#define TAI_CAL_DECEMBER     11
-
-#define TAI_EPOCH "9223372036854775808" /* 2^62 / 2 (=2^63) meaning 1972-01-01 00:00:00 UTC was 1972-01-01 00:00:10 TAI */
-#define TAI_EPOCH_YEAR      1970
-#define TAI_EPOCH_WDAY      TAI_CAL_THURSDAY
+#include "tai_cal.h"
 
 /* the Gregorian calendar */
 #define TAI_CAL_SECS_PER_MIN      60
@@ -96,59 +43,181 @@
 #define TAI_CAL_SECS_PER_DAY      (TAI_CAL_SECS_PER_HOUR * TAI_CAL_HOURS_PER_DAY)
 #define TAI_CAL_MONS_PER_YEAR     12
 
-#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
+/* 2^64/2 (=2^63) meaning Thu 1972-01-01 00:00:00 UTC was Thu 1972-01-01 00:00:10 TAI */
+#define TAI_EPOCH_BASE            "8000000000000000"
+#define TAI_EPOCH_YEAR            1970
+#define TAI_EPOCH_WDAY            TAI_CAL_THURSDAY
+
+/* A year that has 366 days instead of 365 days, is a leap year,
+   February has 29 days instead of 28 in a leap year. Leap years fall on
+   any year that either can be evenly divisible by 4 and is not evenly
+   divisible by 100, or is evenly divisible by 400. For example, the
+   year 2000 is a leap year, but 1900 is not. */
+#define tai_cal_is_leap_year(y) \
+    (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
+#define tai_leapdays_between_years(y1,y2) \
+    (  ((y1) / 4 - (y1) / 100 + (y1) / 400) \
+     - ((y2) / 4 - (y2) / 100 + (y2) / 400))
+
+static const int tai_cal_mon_len[2][TAI_CAL_MONS_PER_YEAR] = {
+    { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
+    { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
+};
 
-tai_rc_t tai_tai2cal(tai_t *tai, int offset)
+static const int tai_cal_year_len[2] = {
+    TAI_CAL_DAYS_PER_NYEAR,
+    TAI_CAL_DAYS_PER_LYEAR
+};
+
+struct tai_leapsec_st {
+    ui64_t trans;
+    int corr;
+} tai_tab_leapsec[] = {
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1972 Jun 30 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1972 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1973 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1974 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1975 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1976 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1977 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1978 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1979 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1981 Jun 30 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1982 Jun 30 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1983 Jun 30 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1985 Jun 30 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1987 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1989 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1990 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1992 Jun 30 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1993 Jun 30 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1994 Jun 30 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1995 Dec 31 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }, /* 1997 Jun 30 23:59:60 */
+    { ui64_cons(00,00,00,00,00,00,00,00), 1 }  /* 1998 Dec 31 23:59:60 */
+};
+
+tai_rc_t tai_tai2cal(const tai_t *tai, tai_cal_t *cal, long offset, int isdst)
 {
-    tai_ui64_t secs;
-    tai_ui64_t days;
-    tai_ui64_t rem;
-    tai_ui64_t tmp;
-    tai_ui64_t tmp2;
-    int lshit;
+    ui64_t secs;
+    ui64_t days;
+    ui64_t rem;
+    ui64_t tmp;
+    ui64_t tmp2;
+    int ls_corr;
+    int ls_hit;
+    int cmp;
+    int yleap;
+    int year;
+    int dyear;
+    int ddays;
+    int i;
 
+    /* calculate (rounded) number of total seconds */
     secs = tai->sec;
+    if (ui64_cmp(tai->asec, tai_half_sec_in_asec) > 0)
+        ui64_addn(secs, 1, NULL);
 
-    /* perform leap second correction */
-    lshit = 0; /* FIXME */
+    /* calculate involved leap seconds */
+    ls_corr = 0;
+    ls_hit  = 0;
+    for (i = 0; i < (sizeof(tai_tab_leapsec)/sizeof(tai_tab_leapsec[0])); i++) {
+        cmp = ui64_cmp(secs, tai_tab_leapsec[i].trans);
+        if (cmp > 0)
+            break;
+        if (cmp == 0)
+            ls_hit = tai_tab_leapsec[i].corr;
+        ls_corr += tai_tab_leapsec[i].corr;
+    }
+    if (ls_corr > 0)
+        secs = ui64_addn(secs, ls_corr, NULL);
+    else
+        secs = ui64_subn(secs, -ls_corr, NULL);
 
     /* perform timezone offset correction */
-    secs = tai_ui64_addn(secs, offset, NULL);
+    if (offset > 0)
+        secs = ui64_addn(secs, offset, NULL);
+    else
+        secs = ui64_subn(secs, -offset, NULL);
+    cal->offs = offset;
+
+    /* perform Daylight Saving Time (DST) offset correction */
+    if (isdst)
+        secs = ui64_addn(secs, 1, NULL); /* FIXME */
+    cal->isdst = isdst;
 
     /* days = secs / TAI_CAL_SECS_PER_DAY
        rem  = secs % TAI_CAL_SECS_PER_DAY */
-    tmp  = tai_ui64_n2i(TAI_CAL_SECS_PER_DAY);
-    days = tai_ui64_div(secs, tmp, &rem);
+    tmp  = ui64_n2i(TAI_CAL_SECS_PER_DAY);
+    days = ui64_div(secs, tmp, &rem);
 
     /* hour = rem / TAI_CAL_SECS_PER_HOUR
        rem  = rem % TAI_CAL_SECS_PER_HOUR */
-    tmp  = tai_ui64_n2i(TAI_CAL_SECS_PER_HOUR);
-    tmp = tai_ui64_div(rem, tmp, &rem);
-    tai->tai_hour = (int)tai_ui64_i2n(tmp);
+    tmp = ui64_n2i(TAI_CAL_SECS_PER_HOUR);
+    tmp = ui64_div(rem, tmp, &rem);
+    cal->hour = (int)ui64_i2n(tmp);
 
     /* min = rem / TAI_CAL_SECS_PER_MIN
        rem = rem % TAI_CAL_SECS_PER_MIN */
-    tmp  = tai_ui64_n2i(TAI_CAL_SECS_PER_MIN);
-    tmp = tai_ui64_div(rem, tmp, &rem);
-    tai->tai_min = (int)tai_ui64_i2n(tmp);
+    tmp = ui64_n2i(TAI_CAL_SECS_PER_MIN);
+    tmp = ui64_div(rem, tmp, &rem);
+    cal->min = (int)ui64_i2n(tmp);
 
-    /* sec = rem + lshit */
-    tai->tai_sec = (int)tai_ui64_i2n(rem) + lshit;
+    /* sec = rem + ls_hit */
+    cal->sec = (int)ui64_i2n(rem) + ls_hit;
 
     /* wday = (TAI_EPOCH_WDAY + days) % TAI_CAL_DAYS_PER_WEEK */
     /* FIXME: TAI is not 0 on EPOCH */
-    tmp = tai_ui64_addn(days, TAI_EPOCH_WDAY, NULL);
-    tmp2 = tai_ui64_n2i(TAI_CAL_DAYS_PER_WEEK);
-    tai_ui64_div(tmp, tmp2, &tmp);
-    tai->tai_wday = (int)tai_ui64_i2n(tmp);
+    tmp  = ui64_addn(days, TAI_EPOCH_WDAY, NULL);
+    tmp2 = ui64_n2i(TAI_CAL_DAYS_PER_WEEK);
+    ui64_div(tmp, tmp2, &tmp);
+    cal->wday = (int)ui64_i2n(tmp);
+
+    /* What about the -10 offset in 1972 (epoch)? */
+
+    /* calculate year */
+    epoch = ui64_s2i(TAI_EPOCH_BASE, NULL, 16);
+    epoch = ui64_divn(epoch, TAI_CAL_SECS_PER_DAY, NULL);
+    year = TAI_EPOCH_YEAR;
+    if (ui64_cmp(days, epoch) > 0) {
+        /* date after the epoch */
+        ui64_sub(days, epoch, &days);
+        dyear = ui64_i2n(ui64_div(days, ui64_n2i(TAI_CAL_DAYS_PER_NYEAR), NULL));
+        ddays = ui64_muln(ui64_n2i(dyear), TAI_CAL_DAYS_PER_NYEAR);
+        ddays = ui64_addn(ddays, tai_leapdays_between_years(year+dyear-1, year-1));
+        days = ui64_sub(days, ddays, NULL);
+        years += dyear;
+    }
+    else {
+        /* date before the epoch */
+        ui64_sub(epoch, days, &days);
+        dyear = ui64_i2n(ui64_div(days, ui64_n2i(TAI_CAL_DAYS_PER_NYEAR), NULL));
+        ddays = ui64_muln(ui64_n2i(dyear), TAI_CAL_DAYS_PER_NYEAR);
+        ddays = ui64_addn(ddays, tai_leapdays_between_years(year+dyear-1, year-1));
+        days = ui64_sub(days, ddays, NULL);
+        years -= dyear;
+    }
+    cal->year = year;
+
+    /* calculate day of the year */
+    cal->yday = ui64_i2n(days);
+
+    /* calculate month of the year */
+    cal->mon = 0;
+    while (days >= tai_cal_mon_len[yleap][cal->mon]) {
+        days = ui64_subn(days, tai_cal_mon_len[yleap][cal->mon], NULL);
+        cal->mon++;
+    }
+
+    /* calculate day of the month */
+    cal->mday = ui64_i2n(days) + 1;
 
-    tai->tai_gmtoff = (long)offset;
-    
     return TAI_OK;
 }
 
-tai_rc_t tai_cal2tai(tai_t *tai)
+tai_rc_t tai_cal2tai(tai_t *tai, const tai_cal_t *cal, long *offset, int *isdst)
 {
+    /* FIXME: binary search with tai_tai2cal!! See mktime implementations!! */
     return TAI_OK;
 }

ossp-pkg/tai/tai_cal.h -> 1.1 

*** /dev/null    Sat Apr 20 13:37:11 2024
--- -    Sat Apr 20 13:38:43 2024
***************
*** 0 ****
--- 1,71 ----
+ /*
+ **  OSSP tai - Time Handling
+ **  Copyright (c) 2002 Ralf S. Engelschall <rse@engelschall.com>
+ **  Copyright (c) 2002 The OSSP Project <http://www.ossp.org/>
+ **  Copyright (c) 2002 Cable & Wireless Deutschland <http://www.cw.com/de/>
+ **
+ **  This file is part of OSSP tai, a time handling library
+ **  which can be found at http://www.ossp.org/pkg/lib/tai/.
+ **
+ **  Permission to use, copy, modify, and distribute this software for
+ **  any purpose with or without fee is hereby granted, provided that
+ **  the above copyright notice and this permission notice appear in all
+ **  copies.
+ **
+ **  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
+ **  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.
+ **
+ **  tai_cal.h: calendar calculations (header)
+ */
+ 
+ #ifndef __TAI_CAL_H__
+ #define __TAI_CAL_H__
+ 
+ #define TAI_CAL_SUNDAY            0
+ #define TAI_CAL_MONDAY            1
+ #define TAI_CAL_TUESDAY           2
+ #define TAI_CAL_WEDNESDAY         3
+ #define TAI_CAL_THURSDAY          4
+ #define TAI_CAL_FRIDAY            5
+ #define TAI_CAL_SATURDAY          6
+ 
+ #define TAI_CAL_JANUARY           0
+ #define TAI_CAL_FEBRUARY          1
+ #define TAI_CAL_MARCH             2
+ #define TAI_CAL_APRIL             3
+ #define TAI_CAL_MAY               4
+ #define TAI_CAL_JUNE              5
+ #define TAI_CAL_JULY              6
+ #define TAI_CAL_AUGUST            7
+ #define TAI_CAL_SEPTEMBER         8
+ #define TAI_CAL_OCTOBER           9
+ #define TAI_CAL_NOVEMBER          10
+ #define TAI_CAL_DECEMBER          11
+ 
+ #define TAI_CAL_YEAR_BASE         1900
+ 
+ typedef struct {
+     int    sec;    /* seconds after the minute [0-61] */
+     int    min;    /* minutes after the hour [0-59] */
+     int    hour;   /* hours since midnight [0-23] */
+     int    mday;   /* day of the month [1-31] */
+     int    mon;    /* months since January [0-11] */
+     int    year;   /* years since 1900 */
+     int    wday;   /* days since Sunday [0-6] */
+     int    yday;   /* days since January 1 [0-365] */
+     long   offs;   /* offset from UTC+0 in seconds */
+     int    isdst;  /* Daylight Savings Time flag */
+ } tai_cal_t;
+ 
+ #endif /* __TAI_CAL_H__ */
+

ossp-pkg/tai/tai_data.c 1.2 -> 1.3 

--- tai_data.c   2002/08/14 14:28:27     1.2
+++ tai_data.c   2005/01/24 11:04:07     1.3
@@ -36,6 +36,12 @@
 
 #include "tai_p.h"
 
+/* ui64 representation of a full second in atto seconds, i.e. 10^(-18) atto-seconds */
+ui64_t tai_full_sec_in_asec = ui64_cons(0D,E0,B6,B3,A7,64,00,00); 
+
+/* ui64 representation of a half second in atto seconds, i.e. (10^(-18)/2) atto-seconds */
+ui64_t tai_half_sec_in_asec = ui64_cons(06,F0,5B,59,D3,B2,00,00);
+
 #define LCTIME_SIZE (sizeof(tai_locale_t) / sizeof(char *))
 
 const tai_locale_t tai_locale = {

ossp-pkg/tai/tai_lib.c 1.8 -> 1.9 

--- tai_lib.c    2003/03/23 18:00:29     1.8
+++ tai_lib.c    2005/01/24 11:04:07     1.9
@@ -158,8 +158,8 @@
     else if (type == TAI_TYPE_UNIX) {
         /* import from time(3) FIXME */
         time_t t = time(NULL);
-        tai->sec  = tai_ui64_n2i((unsigned long)t);
-        tai->asec = tai_ui64_n2i((unsigned long)0);
+        tai->sec  = ui64_n2i((unsigned long)t);
+        tai->asec = ui64_n2i((unsigned long)0);
         tai_tai2cal(tai, 7200);
     }
     else

ossp-pkg/tai/tai_p.h 1.4 -> 1.5 

--- tai_p.h      2002/08/14 14:28:27     1.4
+++ tai_p.h      2005/01/24 11:04:07     1.5
@@ -34,6 +34,7 @@
 #include "config.h"
 #include "tai.h"
 #include "tai_ui64.h"
+#include "tai_cal.h"
 
 struct tai_st {
     tai_ui64_t sec;    /* seconds (integral part) */
@@ -73,12 +74,13 @@
 
 extern const tai_locale_t tai_locale;
 
-#define TM_YEAR_BASE    1900
-
 size_t  tai_format_int(char *const s, const size_t maxsize, const char *const format, const struct tm *const t);
 char   *tai_parse_int (const char *buf, const char *fmt, struct tm *tm);
 
-tai_rc_t tai_tai2cal(tai_t *tai, int offset);
-tai_rc_t tai_cal2tai(tai_t *tai);
+tai_rc_t tai_tai2cal(const tai_t *tai,       tai_cal_t *cal, long  offset, int  isdst);
+tai_rc_t tai_cal2tai(      tai_t *tai, const tai_cal_t *cal, long *offset, int *isdst);
+
+extern ui64_t tai_full_sec_in_asec;
+extern ui64_t tai_half_sec_in_asec;
 
 #endif /* !_TIMELOCAL_H_ */

CVSTrac 2.0.1