1 files changed, 52 insertions, 0 deletions
diff --git a/lib/sigevent.h b/lib/sigevent.h
new file mode 100644
index 0000000..0b07f59
--- /dev/null
+++ b/lib/sigevent.h
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Quagga Signal handling header.
+ *
+ * Copyright (C) 2004 Paul Jakma.
+ */
+
+#ifndef _FRR_SIGNAL_H
+#define _FRR_SIGNAL_H
+
+#include <frrevent.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define FRR_SIGNAL_TIMER_INTERVAL 2L
+
+struct frr_signal_t {
+	int signal;	    /* signal number    */
+	void (*handler)(void); /* handler to call  */
+
+	volatile sig_atomic_t caught; /* private member   */
+};
+
+/* initialise sigevent system
+ * takes:
+ * - pointer to valid struct event_loop
+ * - number of elements in passed in signals array
+ * - array of frr_signal_t's describing signals to handle
+ *   and handlers to use for each signal
+ */
+extern void signal_init(struct event_loop *m, int sigc,
+			struct frr_signal_t *signals);
+
+
+/*
+ * Check whether any signals have been received and are pending. This is done
+ * with the application's key signals blocked. The complete set of signals
+ * is returned in 'setp', so the caller can restore them when appropriate.
+ * If there are pending signals, returns 'true', 'false' otherwise.
+ */
+bool frr_sigevent_check(sigset_t *setp);
+
+/* check whether there are signals to handle, process any found */
+extern int frr_sigevent_process(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _FRR_SIGNAL_H */