Use waitResponses to wait for all pending responses for current thread.

This fixes a potential bug triggered by a storage disconnecting while this
loop would be running, expecting answers from that storage: this would
prevent this loop from ever exiting.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2336 71dcc9de-d417-0410-9af5-da40c76e7ee4

TODO

@@ -119,9 +119,6 @@ RC  - Review output of pylint (CODE)
     - Prevent from SQL injection, escape() from MySQLdb api is not sufficient,
       consider using query(request, args) instead of query(request % args)
     - Create database adapter for other RDBMS (sqlite, postgres)
-    - fix __undoLog when there is out of date cells, there is a busy loop
-      because the client expected more answer than the available number of
-      storage nodes.
     - Make listening address and port optionnal, and if they are not provided
       listen on all interfaces on any available port.
     - Replication throttling (HIGH AVAILABILITY)

neo/client/app.py

@@ -1000,8 +1000,7 @@ class Application(object):
             conn.ask(Packets.AskTIDs(first, last, INVALID_PARTITION), queue=queue)
 
         # Wait for answers from all storages.
-        while len(self.local_var.node_tids) != len(storage_node_list):
-            self._waitAnyMessage()
+        self.waitResponses()
 
         # Reorder tids
         ordered_tids = set()