[tor-bugs] #3752 [Tor Client]: Connect behavior seems broken with IOCP

["Tor Bug Tracker & Wiki" <torproject-admin@xxxxxxxxxxxxxx>]

#3752: Connect behavior seems broken with IOCP
------------------------+---------------------------------------------------
 Reporter:  nickm       |          Owner:  nickm             
     Type:  defect      |         Status:  new               
 Priority:  major       |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Client  |        Version:                    
 Keywords:  iocp        |         Parent:                    
   Points:              |   Actualpoints:                    
------------------------+---------------------------------------------------
 Finally got IOCP to the point where I can turn it on, and I get a bunch of
 "Socket is not connected [WSAENOTCONN]".  These seem to happen when
 connection_or_connect() calls connection_watch_events(), which calls
 bufferevent_enable(), which calls bev_async_consider_reading(), which
 fails because the connection isn't connected yet.

 There's a workaround here: in the aync bufferevent case, don't call
 watch_events() until we're connected  But perhaps also we should consider
 this a libevent bug: be_async_consider_{reading,writing}() and
 be_async_enable() should maybe return immediately if the bufferevent is in
 the process of connecting.

 Also, Tor should eventually switch to use bufferevent_socket_connect().

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3752>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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