1 files changed, 21 insertions, 8 deletions

diff --git a/ffd/ffd.c b/ffd/ffd.c
index 592281a..1a31298 100644
--- a/ffd/ffd.c
+++ b/ffd/ffd.c
@@ -463,11 +463,14 @@ static void receive_packet(void) {
 	}
 }
 
-void add_interval(struct timespec *time, int interval) {
-	int cs = time->tv_nsec/1e7 + interval;
-
-	time->tv_sec += cs/100;
-	time->tv_nsec = time->tv_nsec%(long)1e7 + (cs%100)*1e7;
+static void send_updates(void) {
+	ffd_iface_t *iface;
+	for (iface = iface_list; iface; iface = iface->next) {
+		ffd_neigh_t *neigh;
+		for (neigh = iface->neigh_list; neigh; neigh = neigh->next) {
+			ffd_send_update(iface, neigh, NULL, false);
+		}
+	}
 }
 
 int main() {
@@ -483,25 +486,35 @@ int main() {
 	update_time();
 
 	struct timespec next_hello = now;
+	struct timespec next_update = now;
 
 	while (true) {
 		update_netifs();
 
-		int timeout = timespec_diff(&next_hello, &now);
+		int hello_timeout = timespec_diff(&next_hello, &now);
+		int update_timeout = timespec_diff(&next_update, &now);
 
-		if (timeout <= 0) {
+		if (hello_timeout <= 0) {
 			ffd_send_hellos();
 
 			add_interval(&next_hello, FFD_HELLO_INTERVAL);
 			continue;
 		}
 
+		if (update_timeout <= 0) {
+			fprintf(stderr, "Sending periodic update.\n");
+			send_updates();
+
+			add_interval(&next_update, FFD_UPDATE_INTERVAL);
+			continue;
+		}
+
 		struct pollfd fds[1];
 
 		fds[0].fd = sockfd;
 		fds[0].events = POLLIN;
 
-		poll(fds, 1, timeout);
+		poll(fds, 1, min(hello_timeout, update_timeout));
 
 		update_time();