Re: [2/3] server: Use tcdrain() instead of tcflush() to implement FlushFileBuffers() for a COM port.
26 Aug
2013
26 Aug
'13
8:56 a.m.
Dmitry Timoshkov <dmitry(a)baikal.ru> writes:
MSDN for FlushFileBuffers says:
Flushes the buffers of a specified file and causes all buffered data to be
written to a file.
Linux man page says:
tcdrain() waits until all output written to the object referred to by fd has
been transmitted.
It's a blocking call, you can't do that on the server side.
--
Alexandre Julliard
julliard(a)winehq.org
26 Aug
26 Aug
10:02 a.m.
New subject: [2/3] server: Use tcdrain() instead of tcflush() to implement FlushFileBuffers() for a COM port.
Hello Dmitry,
we had this problem, too. I sent a patch to wine-devel some time ago (I think
2008). It had the same flaw as yours. I sent a different patch after Alexandre
gave me the same answer. I then posted 2009 an different one. It did not make
it into wine, though. I don't know why as there was no answer. Therefor I keep
it since then in our own repository together with other serial fixes (i.e. to
make most USB serial adapters working better).
Attached the patch (rebased on 1.6). We use it rebased on then the actual wine
versions sincd 2009 and it works for us.
Am Montag, 26. August 2013, 10:56:29 schrieb Alexandre Julliard:
Dmitry Timoshkov <dmitry(a)baikal.ru> writes:
Regards,
--
Wolfgang Walter
Studentenwerk München
Anstalt des öffentlichen Rechts
Abteilungsleiter IT
Leopoldstraße 15
80802 München
MSDN for FlushFileBuffers says:
Flushes the buffers of a specified file and causes all buffered data to be
written to a file.
Linux man page says:
tcdrain() waits until all output written to the object referred to by fd
has been transmitted.
It's a blocking call, you can't do that on the server side. 
10:51 a.m.
New subject: [2/3] server: Use tcdrain() instead of tcflush() to implement FlushFileBuffers() for a COM port.
Alexandre Julliard <julliard(a)winehq.org> wrote:
It's a blocking call, you can't do that on the
server side.
Can then something like in the patch from Wolfgang Walter be done
instead?
--
Dmitry.
11:06 a.m.
New subject: [2/3] server: Use tcdrain() instead of tcflush() to implement FlushFileBuffers() for a COM port.
Dmitry Timoshkov <dmitry(a)baikal.ru> writes:
Alexandre Julliard <julliard(a)winehq.org> wrote:
Something like that, yes.
--
Alexandre Julliard
julliard(a)winehq.org
It's a blocking call, you can't do that
on the server side.
Can then something like in the patch from Wolfgang Walter be done
instead?
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3 comments
3 participants
participants (3)
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Alexandre Julliard -
Dmitry Timoshkov -
Wolfgang Walter