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

Takashi Yano takashi.yano@nifty.ne.jp
Thu Nov 11 12:02:34 GMT 2021

On Thu, 11 Nov 2021 12:33:21 +0100
Corinna Vinschen wrote:
> On Nov 11 20:12, Takashi Yano wrote:
> > > [FileProcessIdsUsingFileInformation]
> > 
> > Thanks for advice. get_query_hdl_per_* is called in the write side,
> > so only knows pipe handle of the write side. We would like to know
> > ProcessId which have pipe handle of the read side. Can we use
> > FileProcessIdsUsingFileInformation for this perpose?
> I don't know.  I just stumbled over it yesterday and I thought it might
> be something we could utilize.  Supposedly it returns PIDs for processes
> having that file open, but how this works for pipe read/write sides
> needs testing.  Of course, knowing how Windows functions usually only go
> half the way, the function will either only return the current side of
> the pipe, or even an error code :-/  Never mind, it was just an idea.

I have tested the behaviour of FileProcessIdsUsingFileInformation
just now. We can use it! I will try to use it in get_query_hdl().


Takashi Yano <takashi.yano@nifty.ne.jp>

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