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Merge branch '2204-timezone-caching' into 'master'

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gtimezone: Cache timezones based on the identifier they were created by

Closes #2204

See merge request GNOME/glib!1660
This commit is contained in:
Sebastian Dröge 2020-09-23 10:50:11 +00:00
commit 45758e04b7
1 changed files with 10 additions and 3 deletions
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13
glib/gtimezone.c
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@ -196,6 +196,7 @@ struct _GTimeZone
G_LOCK_DEFINE_STATIC (time_zones);
static GHashTable/*<string?, GTimeZone>*/ *time_zones;
G_LOCK_DEFINE_STATIC (tz_local);
static gchar *tzenv_cached = NULL;
static GTimeZone *tz_local = NULL;
#define MIN_TZYEAR 1916 /* Daylight Savings started in WWI */
@ -1842,11 +1843,17 @@ g_time_zone_new_local (void)
G_LOCK (tz_local);
/* Is time zone changed and must be flushed? */
if (tz_local && g_strcmp0 (g_time_zone_get_identifier (tz_local), tzenv))
g_clear_pointer (&tz_local, g_time_zone_unref);
if (tz_local && g_strcmp0 (tzenv, tzenv_cached) != 0)
{
g_clear_pointer (&tz_local, g_time_zone_unref);
g_clear_pointer (&tzenv_cached, g_free);
}
if (tz_local == NULL)
tz_local = g_time_zone_new (tzenv);
{
tz_local = g_time_zone_new (tzenv);
tzenv_cached = g_strdup (tzenv);
}
tz = g_time_zone_ref (tz_local);