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125 lines
3.6 KiB
C++
125 lines
3.6 KiB
C++
/* Copyright (C) 1998, 1999 Red Hat, Inc.
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#include <config.h>
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// We want to make sure to pick up the POSIX `_r' functions. Some
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// systems, such as Solaris 2.6, require this define in order to
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// declare the functions in the appropriate header.
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#if defined (HAVE_GMTIME_R) || defined (HAVE_LOCALTIME_R)
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# define _POSIX_PTHREAD_SEMANTICS
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# ifndef _REENTRANT
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# define _REENTRANT
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# endif /* _REENTRANT */
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#endif
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#ifdef ECOS
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#include <string.h>
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#endif
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#include <gcj/cni.h>
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#include <java/util/TimeZone.h>
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#include <java/util/GregorianCalendar.h>
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#include <time.h>
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void
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java::util::GregorianCalendar::computeTime ()
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{
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struct tm tim;
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tim.tm_sec = elements(fields)[SECOND];
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tim.tm_min = elements(fields)[MINUTE];
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tim.tm_hour = elements(fields)[HOUR_OF_DAY];
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tim.tm_mday = elements(fields)[DATE];
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tim.tm_mon = elements(fields)[MONTH];
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tim.tm_year = elements(fields)[YEAR] - 1900;
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tim.tm_isdst = 0; // FIXME
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#ifndef ECOS
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// FIXME: None of the standard C library access to the ECOS calendar
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// is yet available.
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time_t t = mktime (&tim);
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#else
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time_t t = 0;
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#endif
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// Adjust for local timezone (introduced by mktime) and our
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// timezone.
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#if defined (STRUCT_TM_HAS_GMTOFF)
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t += tim.tm_gmtoff;
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#elif defined (HAVE_TIMEZONE)
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t -= timezone;
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#endif
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java::util::TimeZone *zone = getTimeZone ();
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t += zone->getRawOffset();
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// Adjust for milliseconds.
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time = t * (jlong) 1000 + elements(fields)[MILLISECOND];
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isTimeSet = true;
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}
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void
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java::util::GregorianCalendar::computeFields ()
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{
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time_t t = time / 1000;
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int millis = time % 1000;
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if (t < 0 && millis != 0)
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{
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t--;
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millis = t - 1000 * t;
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}
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elements(fields)[MILLISECOND] = millis;
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struct tm tim;
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java::util::TimeZone *zone = getTimeZone ();
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// FIXME: None of the standard C library access to the ECOS calendar
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// is yet available.
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#ifdef ECOS
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memset (&tim, 0, sizeof tim);
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#else
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if (zone->getRawOffset() == 0 || ! zone->useDaylightTime())
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{
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#if defined(__JV_POSIX_THREADS__) && defined(HAVE_GMTIME_R)
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gmtime_r (&t, &tim);
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#else
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// Get global lock (because gmtime uses a global buffer). FIXME
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tim = *(struct tm*) gmtime (&t);
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// Release global lock. FIXME
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#endif
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}
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else
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{
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#if defined(__JV_POSIX_THREADS__) && defined(HAVE_LOCALTIME_R)
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localtime_r (&t, &tim);
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#else
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// Get global lock (because localtime uses a global buffer). FIXME
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tim = *(struct tm*) localtime (&t);
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// Release global lock. FIXME
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#endif
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}
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#endif /* ECOS */
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elements(fields)[SECOND] = tim.tm_sec;
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elements(fields)[MINUTE] = tim.tm_min;
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elements(fields)[HOUR_OF_DAY] = tim.tm_hour;
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elements(fields)[AM_PM] = tim.tm_hour < 12 ? AM : PM;
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elements(fields)[HOUR] = tim.tm_hour % 12;
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elements(fields)[DATE] = tim.tm_mday;
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elements(fields)[MONTH] = tim.tm_mon;
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elements(fields)[YEAR] = 1900 + tim.tm_year;
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elements(fields)[DAY_OF_WEEK] = tim.tm_wday + 1;
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elements(fields)[DAY_OF_WEEK_IN_MONTH] = ((tim.tm_mday - 1) / 7) + 1;
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elements(fields)[DAY_OF_YEAR] = tim.tm_yday + 1;
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elements(fields)[WEEK_OF_MONTH]
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= (tim.tm_mday + 6 + (5 - tim.tm_wday + getFirstDayOfWeek()) % 7) / 7;
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elements(fields)[WEEK_OF_YEAR]
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= (tim.tm_yday + 7 + (5 - tim.tm_wday + getFirstDayOfWeek()) % 7) / 7;
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elements(fields)[ERA] = AD;
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elements(fields)[DST_OFFSET] = tim.tm_isdst <= 0 ? 0 : 60*60*1000;
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elements(fields)[ZONE_OFFSET] = getTimeZone()->getRawOffset();
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areFieldsSet = true;
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}
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