BIND 10 #419: Parallel xfrout session should be allowed

[BIND 10 Development]

#419: Parallel xfrout session should be allowed
-------------------------+--------------------------------------------------
  Reporter:  zhanglikun  |            Owner:  zzchen_pku
      Type:  defect      |           Status:  new       
  Priority:  major       |        Milestone:            
 Component:  xfrout      |         Keywords:            
 Sensitive:  0           |   Estimatedhours:  0         
     Hours:  0           |         Billable:  1         
Totalhours:  0           |         Internal:  0         
-------------------------+--------------------------------------------------
 Caused by the change to xfrout.py.in did in revision 3482(ticket 299,
 Changelog 116), parallel xfrout session is not allowed now.

 The connection between b10-auth and b10-xfrout was short connection, that
 worked like http server/client with short connection. b10-auth

 worked like http client, b10-xfrout worked like http server.

 Now the short connection has been changed to long connection. The right
 way for b10-xfrout should be: wait for the socket information sent from
 b10-auth side, then start a new thread(xfrout session) to do zone transfer
 out, go back to wait for the next socket information.

-- 
Ticket URL: <http://bind10.isc.org/ticket/419>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development