Implement latency tracking, internal event log and watchdog

2 files changed, 24 insertions, 3 deletions

diff --git a/doc/bird.conf.example b/doc/bird.conf.example
index dcc62e29..bbfe0020 100644
--- a/doc/bird.conf.example
+++ b/doc/bird.conf.example
@@ -33,6 +33,10 @@
 # Turn on global debugging of all protocols
 #debug protocols all;
 
+# Turn on internal watchdog
+#watchdog warning 5 s;
+#watchdog timeout 30 s;
+
 # The direct protocol automatically generates device routes to
 # all network interfaces. Can exist in as many instances as you wish
 # if you want to populate multiple routing tables with device routes.
@@ -162,7 +166,7 @@ protocol static {
 #               };
 #	};
 #}
-		
+
 
 #protocol bgp {
 #	disabled;
@@ -186,7 +190,7 @@ protocol static {
 #	source address 198.51.100.14;	# What local address we use for the TCP connection
 #	password "secret";	# Password used for MD5 authentication
 #	rr client;		# I am a route reflector and the neighor is my client
-#	rr cluster id 1.0.0.1;	# Use this value for cluster id instead of my router id 
+#	rr cluster id 1.0.0.1;	# Use this value for cluster id instead of my router id
 #	export where source=RTS_STATIC;
 #	export filter {
 #		if source = RTS_STATIC then {
@@ -202,7 +206,7 @@ protocol static {
 #		reject;
 #	};
 #}
-# 
+#
 # Template usage example
 #template bgp rr_client {
 #	disabled;
diff --git a/doc/bird.sgml b/doc/bird.sgml
index 04d8284f..bcf1c8fb 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -344,6 +344,23 @@ protocol rip {
 	of connects and disconnects, 2 and higher for logging of all client
 	commands). Default: 0.
 
+	<tag>debug latency <m/switch/</tag>
+	Activate tracking of elapsed time for internal events. Recent events
+	could be examined using <cf/dump events/ command. Default: off.
+
+	<tag>debug latency limit <m/time/</tag>
+	If <cf/debug latency/ is enabled, this option allows to specify a limit
+	for elapsed time. Events exceeding the limit are logged. Default: 1 s.
+
+	<tag>watchdog warning <m/time/</tag>
+	Set time limit for I/O loop cycle. If one iteration took more time to
+	complete, a warning is logged. Default: 5 s.
+
+	<tag>watchdog timeout <m/time/</tag>
+	Set time limit for I/O loop cycle. If the limit is breached, BIRD is
+	killed by abort signal. The timeout has effective granularity of
+	seconds, zero means disabled. Default: disabled (0).
+
 	<tag>mrtdump "<m/filename/"</tag>
 	Set MRTdump file name. This option must be specified to allow MRTdump
 	feature. Default: no dump file.