2008-02-06  Alexander Larsson  <alexl@redhat.com>

        * libnautilus-private/nautilus-directory-async.c:
        * libnautilus-private/nautilus-directory-private.h:
	Change how we handle cancellation of the directory count
	and mime list for files in a directory. We now make sure
	that the callback for the cancelled operation is run before
	starting a new one.
	
	This was causing problems when viewing a directory that had
	a subdirectory getting a lot of new files added, as for each
	new file added the directory count would be cancelled and
	re-started, leading to lots of outstanding (cancelled)
	operations. Each of these was using a file descriptor for
	the readdir operation, which wasn't really leaking (it was
	eventually freed) but could cause temporary out-of-fd errors.

	Perhaps we should do something similar for all kinds of
	operations, but its worst for dir count and mime list due to
	nautilus_directory_invalidate_count_and_mime_list() which is
	called on file creation.


svn path=/trunk/; revision=13697