server: Add support for pending write flag to the serial device. Take 2.

[Dmitry Timoshkov]

Alexandre Julliard <julliard at winehq.org> wrote:

> It doesn't work here:
> 
> ../../../tools/runtest -q -P wine -T ../../.. -M kernel32.dll -p kernel32_test.exe.so comm.c && touch comm.ok
> comm.c:860: Test failed: WaitCommEvent failed with a timeout
> comm.c:881: Test failed: WaitCommEvent error 997
> comm.c:882: Test failed: WaitCommEvent: expected EV_TXEMPTY, got 0
> comm.c:887: Test failed: WaitCommEvent used 1003 ms for waiting

Could you please generate a +relay,+tid,+comm,+server log for me?

-- 
Dmitry.