1 files changed, 46 insertions, 0 deletions
diff --git a/src/knot/events/handlers/expire.c b/src/knot/events/handlers/expire.c
new file mode 100644
index 0000000..d7deedd
--- /dev/null
+++ b/src/knot/events/handlers/expire.c
@@ -0,0 +1,46 @@
+/*  Copyright (C) 2022 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <assert.h>
+#include <urcu.h>
+
+#include "knot/common/log.h"
+#include "knot/conf/conf.h"
+#include "knot/events/handlers.h"
+#include "knot/events/replan.h"
+#include "knot/zone/contents.h"
+#include "knot/zone/zone.h"
+
+int event_expire(conf_t *conf, zone_t *zone)
+{
+	assert(zone);
+
+	zone_contents_t *expired = zone_switch_contents(zone, NULL);
+	log_zone_info(zone->name, "zone expired");
+
+	synchronize_rcu();
+	knot_sem_wait(&zone->cow_lock);
+	zone_contents_deep_free(expired);
+	knot_sem_post(&zone->cow_lock);
+
+	zone->zonefile.exists = false;
+
+	zone->timers.next_expire = time(NULL);
+	zone->timers.next_refresh = zone->timers.next_expire;
+	replan_from_timers(conf, zone);
+
+	return KNOT_EOK;
+}