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/*======================================================================
FILE: builtin_timezones.c
CREATOR: Milan Crha 26 November 2014
(C) COPYRIGHT 2014 Milan Crha <mcrha@redhat.com>
The contents of this file are subject to the Mozilla Public License
Version 1.0 (the "License"); you may not use this file except in
compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
the License for the specific language governing rights and
limitations under the License.
======================================================================*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "libical/ical.h"
#include <stdio.h>
int main()
{
icalarray *builtin_timezones;
icaltimetype tt;
int dd, hh, zz, tried = 0;
long zz2 = -1;
set_zone_directory("../../zoneinfo");
icaltimezone_set_tzid_prefix("/softwarestudio.org/");
tt = icaltime_current_time_with_zone(icaltimezone_get_builtin_timezone("America/New_York"));
tt.year = 2038;
(void)icaltime_as_timet_with_zone(tt, icaltimezone_get_builtin_timezone("PST"));
tried++;
tt.year = 2050;
(void)icaltime_as_timet_with_zone(tt, icaltimezone_get_builtin_timezone("PST"));
tried++;
tt.year = 1958;
(void)icaltime_as_timet_with_zone(tt, icaltimezone_get_builtin_timezone("PST"));
tried++;
builtin_timezones = icaltimezone_get_builtin_timezones();
printf("got %lu zones\n", (unsigned long)builtin_timezones->num_elements);
if (builtin_timezones->num_elements == 0) {
printf("YIKES. Try running from the build/bin directory\n");
return(1);
}
for (zz = -1; zz < (int)builtin_timezones->num_elements; zz++) {
icaltimezone *zone;
if (zz < 0) {
zone = icaltimezone_get_utc_timezone();
} else {
zone = icalarray_element_at(builtin_timezones, (size_t)zz);
}
tt = icaltime_current_time_with_zone(zone);
for (dd = 0; dd < 370; dd += 17) {
for (hh = 0; hh < 60 * 60 * 24; hh += 567) {
int zz2cnt;
icaltime_adjust(&tt, 0, 0, 0, 1);
for (zz2cnt = 0; zz2cnt < 15; zz2cnt++) {
icaltimezone *zone2;
if (zz2 < 0) {
zone2 = icaltimezone_get_utc_timezone();
} else {
zone2 = icalarray_element_at(builtin_timezones, (size_t)zz2);
}
(void)icaltime_as_timet_with_zone(tt, zone2);
tried++;
zz2++;
if (zz2 >= (long)builtin_timezones->num_elements)
zz2 = -1;
}
}
}
printf("\r%lu %% done",
(zz >= 0 ? zz : 0) * 100 / (unsigned long)builtin_timezones->num_elements);
fflush(stdout);
}
printf("\ntried %d times\n", tried);
return 0;
}
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