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