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Diffstat (limited to 'libjava/java/util/natVMTimeZone.cc')
| -rw-r--r-- | libjava/java/util/natVMTimeZone.cc | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/libjava/java/util/natVMTimeZone.cc b/libjava/java/util/natVMTimeZone.cc deleted file mode 100644 index d45ebf9..0000000 --- a/libjava/java/util/natVMTimeZone.cc +++ /dev/null @@ -1,145 +0,0 @@ -// natVMTimeZone.cc -- Native side of VMTimeZone class. - -/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006 - Free Software Foundation - - 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> -#include <platform.h> - -#include <gcj/cni.h> -#include <jvm.h> - -#include <java/util/VMTimeZone.h> -#include <java/lang/Character.h> -#include <java/lang/Integer.h> - -#include <stdio.h> - -#if TIME_WITH_SYS_TIME -# include <sys/time.h> -# include <time.h> -#else -# if HAVE_SYS_TIME_H -# include <sys/time.h> -# else -# include <time.h> -# endif -#endif - -#include <string.h> - -/** - * This method returns a time zone id string which is in the form - * (standard zone name) or (standard zone name)(GMT offset) or - * (standard zone name)(GMT offset)(daylight time zone name). The - * GMT offset can be in seconds, or where it is evenly divisible by - * 3600, then it can be in hours. The offset must be the time to - * add to the local time to get GMT. If a offset is given and the - * time zone observes daylight saving then the (daylight time zone - * name) must also be given (otherwise it is assumed the time zone - * does not observe any daylight savings). - * <p> - * The result of this method is given to getDefaultTimeZone(String) - * which tries to map the time zone id to a known TimeZone. See - * that method on how the returned String is mapped to a real - * TimeZone object. - */ -jstring -java::util::VMTimeZone::getSystemTimeZoneId() -{ - struct tm tim; -#if !defined(HAVE_LOCALTIME_R) || !defined(_POSIX_PTHREAD_SEMANTICS) - struct tm *lt_tim; -#endif -#ifdef HAVE_TM_ZONE - int month; -#endif - time_t current_time; - long tzoffset; - const char *tz1, *tz2; - char *tzid; - - time(¤t_time); -#if defined(HAVE_LOCALTIME_R) && defined(_POSIX_PTHREAD_SEMANTICS) - localtime_r(¤t_time, &tim); -#else - /* Fall back on non-thread safe localtime. */ - lt_tim = localtime(¤t_time); - memcpy(&tim, lt_tim, sizeof (struct tm)); -#endif - mktime(&tim); - -#ifdef HAVE_TM_ZONE - /* We will cycle through the months to make sure we hit dst. */ - month = tim.tm_mon; - tz1 = tz2 = NULL; - while (tz1 == NULL || tz2 == NULL) - { - if (tim.tm_isdst > 0) - tz2 = tim.tm_zone; - else if (tz1 == NULL) - { - tz1 = tim.tm_zone; - month = tim.tm_mon; - } - - if (tz1 == NULL || tz2 == NULL) - { - tim.tm_mon++; - tim.tm_mon %= 12; - } - - if (tim.tm_mon == month && tz2 == NULL) - tz2 = ""; - else - mktime(&tim); - } - /* We want to make sure the tm struct we use later on is not dst. */ - tim.tm_mon = month; - mktime(&tim); -#elif defined (HAVE_TZNAME) - /* If dst is never used, tzname[1] is the empty string. */ - tzset(); - tz1 = tzname[0]; - tz2 = tzname[1]; -#else - /* Some targets have no concept of timezones. Assume GMT without dst. */ - tz1 = "GMT"; - tz2 = ""; -#endif - -#ifdef STRUCT_TM_HAS_GMTOFF - /* tm_gmtoff is the number of seconds that you must add to GMT to get - local time, we need the number of seconds to add to the local time - to get GMT. */ - tzoffset = -1L * tim.tm_gmtoff; -#elif HAVE_UNDERSCORE_TIMEZONE - tzoffset = _timezone; -#elif HAVE_TIMEZONE - /* timezone is secs WEST of UTC. */ - tzoffset = timezone; -#else - /* FIXME: there must be another global if neither tm_gmtoff nor timezone - is available, esp. if tzname is valid. - Richard Earnshaw <rearnsha@arm.com> has suggested using difftime to - calculate between gmtime and localtime (and accounting for possible - daylight savings time) as an alternative. */ - tzoffset = 0L; -#endif - - if ((tzoffset % 3600) == 0) - tzoffset = tzoffset / 3600; - - tzid = (char*) _Jv_Malloc (strlen(tz1) + strlen(tz2) + 6); - sprintf(tzid, "%s%ld%s", tz1, tzoffset, tz2); - jstring retval = JvNewStringUTF (tzid); - _Jv_Free (tzid); - - return retval; -} |