Cygwin OCFS support (or lack of)

doron cs doroncs@gmail.com
Wed Feb 13 13:50:00 GMT 2008


I have OCFS access as much as you want
What I do not have right now (and it will take time until i get it) is
a cygwin development environment on my Win2003 servers .
If you will send me binaries I will be extatic to run them and strace them
until I will setup my Cygwin development systems .


On Feb 11, 2008 12:38 PM, Corinna Vinschen <corinna-cygwin@cygwin.com> wrote:
> On Feb 10 04:18, Robert Pendell wrote:
> > Well I thought to take my hand at it and see what the strace looked
> > like.  I followed it against a good strace from one of my own local
> > directories.  If you search for fhandler_disk_file::opendir you will
> > find that it fails with error 2 which appears to make subsequent
> > attempts to access information fail (errno 89).  You will only find one
> > reference to that handler.  Afterwards it silently fails.
> >
> > Please correct me if I am wrong here.
>
> The opendir works fine.  It returns a valid DIR pointer as you can see
> in the line before the geterrno_from_win_error.
>
> What happens looks like this:
>
>   opendir succeeds.
>
>   In the first call to readdir, NtQueryDirectoryFile generates a Win32
>   error 2, "No such file" so readdir fakes a "." directory entry.
>
>   In the next call NtQueryDirectoryFile generates a Win32 error 18,
>   "No more files".  readdir fakes a ".." entry.
>
>   In the next call NtQueryDirectoryFile generates another Win32 error
>   18 and readdir finally fails with errno 89, "No more files".
>
> The first error, Win32 error 2 is very strange and I have no explanation
> for this.  Maybe it's not enough for OCFS to open the directory handle
> with FILE_LIST_DIRECTORY access.  It might help to use GENERIC_READ in
> opendir instead.  This should be tested by somebody with OCFS access.
>
>
>
> Corinna
>
> --
> Corinna Vinschen                  Please, send mails regarding Cygwin to
> Cygwin Project Co-Leader          cygwin AT cygwin DOT com
> Red Hat
>
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