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

[Dmitry Timoshkov]

Wolfgang Walter <wine at stwm.de> wrote:

> > ../../../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
> > comm.c:2226: Tests skipped: interactive tests (set WINETEST_INTERACTIVE=1)
> > make: *** [comm.ok] Error 4
> 
> This is because the previous test fails: in the previous test wine actually 
> write to the serial device and does not return with ERROR_INVALID_PARAMETER.

What is this "previous test" you are talking about? Obviously there is no
a failing test which checks for ERROR_INVALID_PARAMETER in the output posted
by Alexandre above. And it's worth to mention that these tests pass without
failures here with and without an external hardware turned on (with the patch
applied).

-- 
Dmitry.