[issue5949] IMAP4_SSL spin because of SSLSocket.suppress_ragged_eofs

[Scott Dial]

Scott Dial <scott at scottdial.com> added the comment:

I tracked the necessary change to r73638 and issue6267. However, I am
not sure it is in scope to backport all of that.

The only changed actually needed from this set to make SocketServer
behave correctly with a SSLSocket is:

     def close_request(self, request):
         """Called to clean up an individual request."""
+        #explicitly shutdown.  socket.close() merely releases
+        #the socket and waits for GC to perform the actual close.
+        request.shutdown(socket.SHUT_WR)
         request.close()

Hence in my py26 patch, I have made a call to shutdown() within the
handler. I would call this a bug, but nobody seems to have noticed but
me, so I defer to you about the best solution.

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