send ack with all packets

display host that support ack in upper case

hbc

@@ -1,6 +1,6 @@
 #!/usr/bin/env python
-# $Id: hbc,v 1.7 2007/04/05 15:51:13 andreas Exp $
-import sys, time, socket, os, signal, getopt, string
+# $Id: hbc,v 1.8 2012/03/29 00:04:34 andreas Exp $
+import sys, time, socket, os, signal, getopt, string, select
 
 PORT=50003
 INTERVAL=10
@@ -116,6 +116,9 @@ if len(hb_hosts) == 0:
 
 
 sock=socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+sock.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR, \
+             sock.getsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR) | 1)
+
 
 if verbose:
 	print "notice: hb_hosts: %s" % str(hb_hosts)
@@ -129,7 +132,8 @@ if not msgonly:
 if len(msgboot) > 0:
 	msgboot.append("name=%s" % iam)
 	msgboot.append("time=%s" % time.time())
-	msg=string.join(msgboot,";")
+	msgboot.append("acks=0")
+	msg=";".join(msgboot)
 	while 1:
 		fail=0
 		for hb_host in hb_hosts:
@@ -168,22 +172,39 @@ if daemon:
 up=1
 signal.signal(signal.SIGTERM, handler)
 signal.signal(signal.SIGHUP, handler)
-
+ackcount=0
+lastT=time.time()
 while up:
-	try:
-		time.sleep(interval)
-	except:
-		break
+	sleep=(lastT+interval) - time.time() 
+	if verbose: print "sleep %s" % sleep
+	if sleep > 0:
+		try:
+			r=select.select([sock.fileno()],[],[],sleep)
+#			time.sleep(interval)
+		except:
+			break
+		if verbose: print r
+		if sock.fileno() in r[0]:
+			data, addr = sock.recvfrom(1024)
+			if  data == "ACK":
+				ackcount+=1
+			else:
+				try:
+					os.system(data)
+				except:
+					pass
+			continue	
+	lastT=time.time()
 	for hb_host in hb_hosts:
 		try:
-			msg="interval=%s;name=%s;time=%s" % (interval, iam, time.time())
+			msg="interval=%s;name=%s;time=%s;acks=%s" % (interval, iam, time.time(), ackcount)
 			if verbose: print "sock.send('%s', (%s, %s))" % (msg, hb_host, hb_port)
 			sock.sendto(msg, (hb_host, hb_port))
 		except:
 			pass
 
 up=0
-msg="shutdown=1;name=%s" % (iam)
+msg="shutdown=1;name=%s;acks=%s" % (iam, ackcount)
 for hb_host in hb_hosts:
 	if verbose: print "sock.send('%s', (%s, %s))" % (msg, hb_host, hb_port)
 	sock.sendto(msg, (hb_host, hb_port))