reopen UDP socket periodically

hbc

@@ -22,6 +22,7 @@ import syslog
 
 PORT = 50003
 INTERVAL = 10
+REOPENC = 6
 PIDFILE = '/tmp/hbc.pid'
 VER = 4
 MAXRECV = 32767
@@ -54,13 +55,22 @@ class Conn:
 		self.send = 0
 		self.lastsend = 0		# time() last msg was sent
 		self.rtts = [0]
-		self.sock=socket.socket(af, socket.SOCK_DGRAM)
+		self.sock = None
+
+
+	def open(self):
+		self.sock=socket.socket(self.af, socket.SOCK_DGRAM)
 		self.sock.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR, \
  			self.sock.getsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR) | 1)
 
+
 	def sendto(self, msg, ID = 'HTB'):		# default ID is HearTBeat
 		global warned1
 
+		if self.send % REOPENC == 0:
+			self.close()
+		if not self.sock:
+			self.open()
 		msg['name'] = shortname(iam)
 		msg['id'] = self.conId
 		msg['ver'] = VER
@@ -73,6 +83,7 @@ class Conn:
 		except socket.error as e:
 			if not warned1: log("socket error: %s %s:%s" % (e, self.addr, self.port))
 			warned1 = True
+			self.close()
 			return
 		self.send += 1
 		self.lastsend = time.time()
@@ -252,15 +263,16 @@ def restart():
 def process():
 	global running, dorestart
 
-	ifiles = {}
-	conIds = {}
-	for conn in conns:
-		ifiles[conns[conn].sock.fileno()] = conns[conn].sock
-		conIds[conns[conn].sock.fileno()] = conn
 	nextReport = time.time()
 
 	while running:
 		while time.time() < nextReport:
+			ifiles = {}
+			conIds = {}
+			for conn in conns:
+				ifiles[conns[conn].sock.fileno()] = conns[conn].sock
+				conIds[conns[conn].sock.fileno()] = conn
+
 			sleep=nextReport - time.time() 
 			if sleep <= 0:
 				break