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Re: quick way to find out if a file is in use by windows?
On Sep 10 21:22, jurriaan@rivierenland.xs4all.nl wrote:
> > mv does not timeout. The underlying unlink function checks if the file
> > is in use and, if so, moves the file to the bin and sets the delete
> > disposition so it will be deleted after the last process closes its
> > handle to the file. If this fails, unlink silently gives up. The reason
> > for the hang must be something else.
> >
> Thanks for replying.
> I straced both mv and rm. The rm strace is at the bottom, below here
> first the mv strace. It only seems to hang, but the strace is filling up
> quickly with lots of lines like this continuously:
>
> 63 77448 [main] mv 14716 rename: status 0xC0000043
>
> Is this a status mv should fail on, or is Windows incorrectly returning
> a status that means 'repeat and retry by all means' ?
Oops. I mixed up mv and rm, so my babble about unlink was off the
point. Of course mv calls the rename function and the rename function
in fact has a loop which retries to rename a file or dir if a sharing
violation occurs. The original idea of the retry loop was to workaround
a problem with some BLODAs - virus scanners - which block newly
generated files against deletion(*) for a short period of time while
checking them. This breaks some applications which copy files by
creating a temporary filename and then rename the temp filename to the
target filename.
However, the workaround was missing a break from the loop, if the
sharing violation persists. I fixed that in CVS.
Thanks,
Corinna
(*) On Windows a user needs delete permissions to rename a file.
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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