Mail Archives: cygwin/2006/06/19/11:06:53
Eric Blake wrote:
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> According to Gina Verlekar on 6/15/2006 3:53 AM:
>> Hi,
>>
>> I have implemented some changes in the linker code for some intermediate
>> processing. For that I need to create a temporary directory, generate
>> some intermediate in it, process those files by calling a function.
>> After processing of the intermediate files, I delete the intermediate
>> files and the temporary directory.
>> While this logic works fine in the linux, the temporary directory does
>> not get deleted in cygwin.
>
> Windows is not Linux, and will not allow users to delete in-use
> directories (where a directory is considered in-use if it contains files,
> or if any process is using that directory as its current working
> directory), nor the clean deletion of files that are still open. POSIX
> allows this behavior, and cygwin cannot change Window's implementation of
> deletion semantics. Just because Linux behaves nicer doesn't mean that it
> is portable to remove in-use directories. Fix your code to first close
> all outstanding file handles before trying to remove the files, and then
> the directory.
>
> That said, cygwin does try to emulate linux, and if someone were to
> contribute a patch that would allow cygwin to emulate directory deletion
> if it knows that all open handles have also been scheduled for unlinking
> at process end, then http://cygwin.com/acronyms/#PTC.
Not a patch, but for the record, it looks like Interix solves this
problem (http://www.interopsystems.com/tools/tm.aspx?m=9403). Maybe
Cygwin could do something similar?
(And in case that link dies; apparently Interix has a special 'temp'
directory where "unlinked" files are sent until their handles are all
closed.)
--
Matthew
...Ruthlessly beating Windows with a hammer until it looks like POSIX.
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