1 files changed, 124 insertions, 0 deletions
diff --git a/libjava/java/util/natGregorianCalendar.cc b/libjava/java/util/natGregorianCalendar.cc
new file mode 100644
index 00000000000..cfa98bdc58d
--- /dev/null
+++ b/libjava/java/util/natGregorianCalendar.cc
@@ -0,0 +1,124 @@
+/* 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 * 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;
+}