fix restart problem

hbd

@@ -2,7 +2,7 @@
 # $Id: hbd,v 1.38 2013/07/14 02:25:05 andreas Exp $
 # Wait for heartbeat messages and act on them (or their absence)
 #
-VER = 1.38
+VER = 1.51
 
 import time, os, string, sys, socket, atexit, select, SocketServer, getopt, signal, cPickle, smtplib, traceback, urllib
 
@@ -500,10 +500,11 @@ def exitcurses():
 	curses.endwin()
 
 
+class HtmlServer(SocketServer.TCPServer):
+	allow_reuse_address = True
 #
 #
 class HtmlHandler(SocketServer.BaseRequestHandler):
-	allow_reuse_address = True
 
 
 	def buildhead(self, title="Heartbeat", refresh=None):
@@ -536,6 +537,7 @@ class HtmlHandler(SocketServer.BaseRequestHandler):
 
 
 	def handle(self):
+		global sig, running
 		headers=[]
 		headers.append("Date: %s" % time.strftime("%a, %d %b %Y %H:%M:%S GMT", time.gmtime(now)))
 		headers.append("Server: hbd")
@@ -586,6 +588,13 @@ class HtmlHandler(SocketServer.BaseRequestHandler):
 				res=self.buildhead()
 				res.append("Done")
 
+		elif upar[0] == "/r":   # restart
+			res=self.buildhead()
+			res.append("restart request")
+			sig=signal.SIGHUP
+			running=False
+			log("restart request")
+
 		else:
 			code = 404
 			cause = "Not Found"
@@ -612,13 +621,9 @@ class HtmlHandler(SocketServer.BaseRequestHandler):
 
 
 def saveandrestart():
-	if DEBUG: sys.stderr.write("mark 1\n")
 	sock.close()
-#	if DEBUG: sys.stderr.write("mark 2\n")
 #	serv.shutdown()	#N.B. dont shutdown() as we don't use serv_forever
-	if DEBUG: sys.stderr.write("mark 3\n")
 	serv.server_close()
-	if DEBUG: sys.stderr.write("mark 4\n")
 	log("restarting")
 	os.execv(sys.argv[0], [sys.argv[0]]+cmdargs)
 
@@ -791,7 +796,7 @@ sock.bind(("", hb_port))
 sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
 ilist.append(sock)
 
-serv = SocketServer.TCPServer((hbd_host, hbd_port), HtmlHandler)
+serv = HtmlServer((hbd_host, hbd_port), HtmlHandler)
 ilist.append(serv.fileno())
 
 if not forground: