mirror of
https://git.postgresql.org/git/postgresql.git
synced 2025-01-12 18:34:36 +08:00
Clean up support for USE_POSIX_TIME, ! HAVE_INT_TIMEZONE machines.
Remove references to modf() which is buggy on some platforms (Sparc/Linux).
This commit is contained in:
Thomas G. Lockhart
parent
07f0647808
commit
43b6f1e678
@ -7,7 +7,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.6 1997/05/16 07:19:50 thomas Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.7 1997/05/30 15:02:48 thomas Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -392,9 +392,11 @@ date2tm(DateADT dateVal, int *tzp, struct tm *tm, double *fsec, char **tzn)
|
||||
tx = localtime(&utime);
|
||||
|
||||
#ifdef DATEDEBUG
|
||||
#ifdef HAVE_INT_TIMEZONE
|
||||
printf( "date2tm- (localtime) %d.%02d.%02d %02d:%02d:%02.0f %s %s dst=%d\n",
|
||||
tx->tm_year, tx->tm_mon, tx->tm_mday, tx->tm_hour, tx->tm_min, sec,
|
||||
tzname[0], tzname[1], tx->tm_isdst);
|
||||
#endif
|
||||
#endif
|
||||
tm->tm_year = tx->tm_year + 1900;
|
||||
tm->tm_mon = tx->tm_mon + 1;
|
||||
@ -411,6 +413,9 @@ printf( "date2tm- (localtime) %d.%02d.%02d %02d:%02d:%02.0f %s %s dst=%d\n",
|
||||
if (tzn != NULL) *tzn = tzname[(tm->tm_isdst > 0)];
|
||||
|
||||
#else /* !HAVE_INT_TIMEZONE */
|
||||
tm->tm_gmtoff = tx->tm_gmtoff;
|
||||
tm->tm_zone = tx->tm_zone;
|
||||
|
||||
*tzp = (tm->tm_isdst? (tm->tm_gmtoff - 3600): tm->tm_gmtoff); /* tm_gmtoff is Sun/DEC-ism */
|
||||
if (tzn != NULL) *tzn = tm->tm_zone;
|
||||
#endif
|
||||
|
||||
@ -7,7 +7,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/adt/Attic/dt.c,v 1.22 1997/05/23 05:24:47 thomas Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/adt/Attic/dt.c,v 1.23 1997/05/30 15:02:51 thomas Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -44,6 +44,12 @@ char *months[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
|
||||
char *days[] = {"Sunday", "Monday", "Tuesday", "Wednesday",
|
||||
"Thursday", "Friday", "Saturday", NULL};
|
||||
|
||||
/* TMODULO()
|
||||
* Macro to replace modf(), which is broken on some platforms.
|
||||
*/
|
||||
#define TMODULO(t,q,u) {q = ((t < 0)? ceil(t / u): floor(t / u)); \
|
||||
if (q != 0) t -= rint(q * u);}
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* USER I/O ROUTINES *
|
||||
@ -1556,6 +1562,9 @@ int j2day( int date)
|
||||
* Returns:
|
||||
* 0 on success
|
||||
* -1 on out of range
|
||||
*
|
||||
* For dates within the system-supported time_t range, convert to the
|
||||
* local time zone. If out of this range, leave as GMT. - tgl 97/05/27
|
||||
*/
|
||||
int
|
||||
datetime2tm( DateTime dt, int *tzp, struct tm *tm, double *fsec, char **tzn)
|
||||
@ -1568,7 +1577,9 @@ datetime2tm( DateTime dt, int *tzp, struct tm *tm, double *fsec, char **tzn)
|
||||
|
||||
|
||||
date0 = date2j(2000,1,1);
|
||||
time = (modf( dt/86400, &date)*86400);
|
||||
|
||||
time = dt;
|
||||
TMODULO(time,date,86400e0);
|
||||
|
||||
if (time < 0) {
|
||||
time += 86400;
|
||||
@ -1594,24 +1605,30 @@ printf( "datetime2tm- date is %d.%02d.%02d\n", tm->tm_year, tm->tm_mon, tm->tm_m
|
||||
printf( "datetime2tm- time is %02d:%02d:%02.0f\n", tm->tm_hour, tm->tm_min, sec);
|
||||
#endif
|
||||
|
||||
*fsec = modf(JROUND(sec),&sec);
|
||||
tm->tm_sec = sec;
|
||||
*fsec = JROUND(sec);
|
||||
TMODULO(*fsec,tm->tm_sec,1);
|
||||
|
||||
#ifdef DATEDEBUG
|
||||
printf( "datetime2tm- time is %02d:%02d:%02d %.7f\n", tm->tm_hour, tm->tm_min, tm->tm_sec, *fsec);
|
||||
#endif
|
||||
|
||||
if (tzp != NULL) {
|
||||
/* XXX HACK to get time behavior compatible with Postgres v6.0 - tgl 97/04/07 */
|
||||
if (IS_VALID_UTIME( tm->tm_year, tm->tm_mon, tm->tm_mday)) {
|
||||
utime = (dt + (date0-date2j(1970,1,1))*86400);
|
||||
|
||||
#ifdef USE_POSIX_TIME
|
||||
tx = localtime(&utime);
|
||||
#ifdef DATEDEBUG
|
||||
#ifdef HAVE_INT_TIMEZONE
|
||||
printf( "datetime2tm- (localtime) %d.%02d.%02d %02d:%02d:%02.0f %s %s dst=%d\n",
|
||||
tx->tm_year, tx->tm_mon, tx->tm_mday, tx->tm_hour, tx->tm_min, sec,
|
||||
tzname[0], tzname[1], tx->tm_isdst);
|
||||
#else
|
||||
printf( "datetime2tm- (localtime) %d.%02d.%02d %02d:%02d:%02.0f %s dst=%d\n",
|
||||
tx->tm_year, tx->tm_mon, tx->tm_mday, tx->tm_hour, tx->tm_min, sec,
|
||||
tx->tm_zone, tx->tm_isdst);
|
||||
#endif
|
||||
#else
|
||||
#endif
|
||||
tm->tm_year = tx->tm_year + 1900;
|
||||
tm->tm_mon = tx->tm_mon + 1;
|
||||
@ -1626,6 +1643,9 @@ printf( "datetime2tm- (localtime) %d.%02d.%02d %02d:%02d:%02.0f %s %s dst=%d\n",
|
||||
if (tzn != NULL) *tzn = tzname[(tm->tm_isdst > 0)];
|
||||
|
||||
#else /* !HAVE_INT_TIMEZONE */
|
||||
tm->tm_gmtoff = tx->tm_gmtoff;
|
||||
tm->tm_zone = tx->tm_zone;
|
||||
|
||||
*tzp = (tm->tm_isdst? (tm->tm_gmtoff - 3600): tm->tm_gmtoff); /* tm_gmtoff is Sun/DEC-ism */
|
||||
if (tzn != NULL) *tzn = tm->tm_zone;
|
||||
#endif
|
||||
@ -1634,6 +1654,7 @@ printf( "datetime2tm- (localtime) %d.%02d.%02d %02d:%02d:%02.0f %s %s dst=%d\n",
|
||||
*tzp = CTimeZone; /* V7 conventions; don't know timezone? */
|
||||
if (tzn != NULL) *tzn = CTZName;
|
||||
#endif
|
||||
|
||||
} else {
|
||||
*tzp = 0;
|
||||
tm->tm_isdst = 0;
|
||||
@ -1653,10 +1674,12 @@ printf( "datetime2tm- time is %02d:%02d:%02d %.7f\n", tm->tm_hour, tm->tm_min, t
|
||||
#endif
|
||||
|
||||
#ifdef DATEDEBUG
|
||||
#ifdef USE_POSIX_TIME
|
||||
#ifdef HAVE_INT_TIMEZONE
|
||||
printf( "datetime2tm- timezone is %s; offset is %d (%d); daylight is %d\n",
|
||||
tzname[tm->tm_isdst != 0], ((tzp != NULL)? *tzp: 0), CTimeZone, CDayLight);
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
@ -1690,6 +1713,9 @@ printf( "tm2datetime- time is %f %02d:%02d:%02d %f\n", time, tm->tm_hour, tm->tm
|
||||
} /* tm2datetime() */
|
||||
|
||||
|
||||
/* timespan2tm()
|
||||
* Convert a timespan data type to a tm structure.
|
||||
*/
|
||||
int
|
||||
timespan2tm(TimeSpan span, struct tm *tm, float8 *fsec)
|
||||
{
|
||||
@ -1710,19 +1736,10 @@ timespan2tm(TimeSpan span, struct tm *tm, float8 *fsec)
|
||||
time = span.time;
|
||||
#endif
|
||||
|
||||
funit = modf( (time / 86400), &iunit);
|
||||
tm->tm_mday = iunit;
|
||||
if (tm->tm_mday != 0) time -= rint(tm->tm_mday * 86400);
|
||||
|
||||
funit = modf( (time / 3600), &iunit);
|
||||
tm->tm_hour = iunit;
|
||||
if (tm->tm_hour != 0) time -= rint(tm->tm_hour * 3600e0);
|
||||
funit = modf( (time / 60), &iunit);
|
||||
tm->tm_min = iunit;
|
||||
if (tm->tm_min != 0) time -= rint(tm->tm_min * 60e0);
|
||||
funit = modf( time, &iunit);
|
||||
tm->tm_sec = iunit;
|
||||
if (tm->tm_sec != 0) time -= tm->tm_sec;
|
||||
TMODULO(time, tm->tm_mday, 86400e0);
|
||||
TMODULO(time, tm->tm_hour, 3600e0);
|
||||
TMODULO(time, tm->tm_min, 60e0);
|
||||
TMODULO(time, tm->tm_sec, 1);
|
||||
*fsec = time;
|
||||
|
||||
#ifdef DATEDEBUG
|
||||
@ -1901,6 +1918,11 @@ printf( "ParseDateTime- set field[%d] to %s type %d\n", (nf-1), field[nf-1], fty
|
||||
* Also supports input in compact time:
|
||||
* "970207 152327"
|
||||
* "97038 152327"
|
||||
*
|
||||
* Use the system-provided functions to get the current time zone
|
||||
* if not specified in the input string.
|
||||
* If the date is outside the time_t system-supported time range,
|
||||
* then assume GMT time zone. - tgl 97/05/27
|
||||
*/
|
||||
int
|
||||
DecodeDateTime( char *field[], int ftype[], int nf,
|
||||
@ -2090,7 +2112,6 @@ printf( " %02d:%02d:%02d\n", tm->tm_hour, tm->tm_min, tm->tm_sec);
|
||||
return(((fmask & DTK_TIME_M) == DTK_TIME_M)? 1: -1);
|
||||
|
||||
/* timezone not specified? then find local timezone if possible */
|
||||
/* XXX HACK to get correct behavior relative to Postgres v6.0 - tgl 97/04/07 */
|
||||
if ((*dtype == DTK_DATE) && ((fmask & DTK_DATE_M) == DTK_DATE_M)
|
||||
&& (tzp != NULL) && (! (fmask & DTK_M(TZ)))) {
|
||||
|
||||
@ -2105,9 +2126,11 @@ printf( " %02d:%02d:%02d\n", tm->tm_hour, tm->tm_min, tm->tm_sec);
|
||||
|
||||
#ifdef HAVE_INT_TIMEZONE
|
||||
*tzp = ((tm->tm_isdst > 0)? (timezone - 3600): timezone);
|
||||
|
||||
#else /* !HAVE_INT_TIMEZONE */
|
||||
*tzp = tm->tm_gmtoff;
|
||||
*tzp = -(tm->tm_gmtoff); /* tm_gmtoff is Sun/DEC-ism */
|
||||
#endif
|
||||
|
||||
#else /* !USE_POSIX_TIME */
|
||||
*tzp = CTimeZone;
|
||||
#endif
|
||||
@ -2803,7 +2826,7 @@ printf( "DecodeDateDelta- (%08x/%08x) field[%d] %s value is %d\n",
|
||||
};
|
||||
|
||||
if (*fsec != 0) {
|
||||
*fsec = modf( *fsec, &sec);
|
||||
TMODULO(*fsec,sec,1);
|
||||
tm->tm_sec += sec;
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user