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

[Corinna Vinschen]

On Nov 12 17:33, Takashi Yano wrote:
> On Thu, 11 Nov 2021 20:12:06 +0900
> Takashi Yano wrote:
> > On Thu, 11 Nov 2021 10:52:33 +0100
> > Corinna Vinschen wrote:
> > > What I don't like much is that we are now running a busy loop, but the
> > > NtQueryObject hang is... disappointing, to say the least.  What about
> > > using another function like NtQueryInformationFile(FileNameInformation)?
> > > I bet this hangs, too, right?  
> > 
> > I have just confirmed that NtQueryInformationFile(FileNameInformation)
> > also hangs.
> 
> I tried to utilize following APIs, however, all of them hangs.
> 
> NtQueryObject(ObjectNameInformation)
> NtQueryInformationFile(FileNameInformation)
> GetFinalPathNameByHandle()
> GetFileInformationByHandleEx(FileNameInfo)

:-P

> However, NtQueryInformationFile(FileProcessIdsUsingFileInformation)
> does not hang. I wonder how it checks internally that one of the
> process handles is pointing the same pipe.

Good question.

In the meantime, you might want to merge your code into master, whenever
you think it's ready.


Corinna