Repeated calls to WSAEventSelect() with FD_WRITE deliver
spurious FD_WRITE events, as the flag isn't held, resulting
in us unnecessarily polling the socket for writability,
despite the fact FD_WRITE should only be delivered (1) initially
on socket creation, and (2) after send[to]() fails with
EWOULDBLOCK and buffer space becomes available.
Signed-off-by: Damjan Jovanovic <damjan.jov@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>