From 5998b096b969cb931e5e3d7850415be1c70f122c Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Thu, 30 Aug 2012 04:02:34 +0200
Subject: Clean up announcement handling

---
 ffvisd/ffvisd.c | 66 +++++++++++++++++++++++++++------------------------------
 1 file changed, 31 insertions(+), 35 deletions(-)

diff --git a/ffvisd/ffvisd.c b/ffvisd/ffvisd.c
index d8ecf3d..7950e02 100644
--- a/ffvisd/ffvisd.c
+++ b/ffvisd/ffvisd.c
@@ -509,6 +509,34 @@ static void send_announcements() {
 	ffvisd_iface_foreach(send_announcement, packet);
 }
 
+static void handle_announcement(const ffvisd_packet_server_announce_t *server) {
+	ffvisd_announce_t *announce;
+	for(announce = announcements; announce; announce = announce->next) {
+		if (!are_announcements_equal(server, &announce->announce))
+			continue;
+
+		if (is_announcement_local(announce))
+			return;
+
+		uint16_t seqno_diff = ntohs(server->seqno) - ntohs(announce->announce.seqno);
+
+		if (seqno_diff > 0 && seqno_diff < 0x8000) {
+			announce->received = now;
+			announce->announce = *server;
+		}
+
+		return;
+	}
+
+	/* no matching annouce was found */
+	announce = calloc(1, sizeof(ffvisd_announce_t));
+	announce->received = now;
+	announce->announce = *server;
+
+	announce->next = announcements;
+	announcements = announce;
+}
+
 static void receive_announcement() {
 	ffvisd_packet_announce_t *packet = alloca(sizeof(ffvisd_packet_announce_t) + 75*sizeof(ffvisd_packet_server_announce_t));
 
@@ -536,43 +564,11 @@ static void receive_announcement() {
 		return;
 	}
 
-	puts("Received announcements:");
-	int i;
-	for(i = 0; i < n_servers; i++)
-		pr_announcement_packet(&packet->servers[i]);
-	puts("");
-
 	clock_gettime(CLOCK_MONOTONIC, &now);
 
-	for(i = 0; i < n_servers; i++) {
-		ffvisd_announce_t *announce;
-		for(announce = announcements; announce; announce = announce->next) {
-			if (!are_announcements_equal(&packet->servers[i], &announce->announce))
-				continue;
-
-			if (is_announcement_local(announce))
-				break;
-
-			uint16_t seqno_diff = ntohs(packet->servers[i].seqno) - ntohs(announce->announce.seqno);
-
-			if (seqno_diff > 0 && seqno_diff < 0x8000) {
-				announce->received = now;
-				announce->announce = packet->servers[i];
-			}
-
-			break;
-		}
-
-		if (!announce) { /* no matching annouce was found */
-			announce = calloc(1, sizeof(ffvisd_announce_t));
-			announce->received = now;
-			announce->announce = packet->servers[i];
-
-			announce->next = announcements;
-			announcements = announce;
-		}
-
-	}
+	int i;
+	for(i = 0; i < n_servers; i++)
+		handle_announcement(&packet->servers[i]);
 }
 
 int main() {
-- 
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