Define len() for network.BMConnectionPool

src/network/bmproto.py

@@ -597,8 +597,7 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
             if (
                 Peer(self.destination.host, self.peerNode.port)
                 in connectionpool.BMConnectionPool().inboundConnections
-                or len(connectionpool.BMConnectionPool().inboundConnections)
-                + len(connectionpool.BMConnectionPool().outboundConnections)
+                or len(connectionpool.BMConnectionPool())
                 > BMConfigParser().safeGetInt(
                     'bitmessagesettings', 'maxtotalconnections')
                 + BMConfigParser().safeGetInt(

src/network/connectionpool.py

@@ -72,6 +72,9 @@ class BMConnectionPool(object):
                 ' trustedpeer=<hostname>:<portnumber>'
             )
 
+    def __len__(self):
+        return len(self.outboundConnections) + len(self.inboundConnections)
+
     def connections(self):
         """
         Shortcut for combined list of connections from

src/network/tcp.py

@@ -408,8 +408,7 @@ class TCPServer(AdvancedDispatcher):
 
         state.ownAddresses[Peer(*sock.getsockname())] = True
         if (
-            len(connectionpool.BMConnectionPool().inboundConnections)
-            + len(connectionpool.BMConnectionPool().outboundConnections)
+            len(connectionpool.BMConnectionPool())
             > BMConfigParser().safeGetInt(
                 'bitmessagesettings', 'maxtotalconnections')
                 + BMConfigParser().safeGetInt(