1 files changed, 37 insertions, 0 deletions
diff --git a/src/utils/common/signal.h b/src/utils/common/signal.h
new file mode 100644
index 0000000..0955c9d
--- /dev/null
+++ b/src/utils/common/signal.h
@@ -0,0 +1,37 @@
+/*  Copyright (C) 2023 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/>.
+ */
+
+#pragma once
+
+#include "knot/journal/knot_lmdb.h"
+
+/*!
+ * \brief Data passed to the signal handler.
+ */
+typedef struct {
+	knot_lmdb_db_t *close_db; // LMDB database to be closed
+	bool color;               // do a terminal color reset
+} signal_ctx_t;
+
+/*!
+ * \brief Prepares a signal handler for a clean shutdown.
+ *
+ * \note  Configures common break signals to initiate close of confdb
+ *        and of another LMDB database defined by the global variable
+ *        signal_ctx_t signal_ctx. If set to NULL, only confdb
+ *        is closed.
+ */
+void signal_init_std(void);