[PATCH xserver] os: Call FlushClient() before sending FD-passing messages

[Keith Packard]

Alexander Volkov <a.volkov at rusbitech.ru> writes:

> libxcb stores received file descriptors in the buffer of size 16 
> (XCB_MAX_PASS_FD).
> Whether it's possible that the X server will send more than 16 fds in a 
> single reply
> and overflow the libxcb's buffer?

It wouldn't be if the X server were careful in flushing things, but as
that seems 'hard', we should probably fix xcb. I don't think that's
terribly urgent as it would take a very strange situation to pass 16 fds
in a short amount of time, especially in such close proximity as to end
up not getting a reply that processes any of them in the middle of the
sequence.

-- 
-keith
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