3.3.0: Possible regression in cygwin DLL (Win10); fixed in snapshot

[Corinna Vinschen]

On Nov  6 12:42, Corinna Vinschen wrote:
> On Nov  6 15:10, Takashi Yano wrote:
> > P.S.
> > Unfortunately, these solutions do not resolve the issue
> > which is another issue with C# program:
> > https://cygwin.com/pipermail/cygwin/2021-March/247987.html
> > This still needs FILE_SYNCHRONOUS_IO_NONALERT flag.
> 
> If we want to add FILE_SYNCHRONOUS_IO_NONALERT, this would have to be
> solved by running NtReadFile/NtWriteFile synchronously in a thread,
> started on every invocation of raw_read/raw_write.  raw_read/raw_write
> would then call cygwait on the thread object.  To break on signal or
> thread cancallation events, it would have to call CancelSynchronousIo.
> That's certainly doable.

That would be something for 3.4, though.  For 3.3.2, we should just
fix the other problem.  Ignoring 0 byte packets is probably the most
easy way out.

With this fixed, I think I should release 3.3.2 soon.  We can have as
much 3.3 bugfix releases as we want, anyway.


Thanks,
Corinna