The equivalent would be:
[
link-info dup symbolic-link?
[ drop ] [ size>> + ] if
] [ drop ] recover
On Thu, Oct 1, 2015 at 6:54 AM, HP wei <hpwe...@gmail.com> wrote:
> Just want to elaborate on what I meant by 'error trapping' link-info.
>
> [ link-info dup symbolic-link? [ drop ] [ size>> + ]
>
> In python's syntax, I would write the above quot as something like:
>
> try:
> file_info = link_info(dir_entry)
> if not is_symbolic_link(file_info):
> total_size += get_fize(file_info)
> except:
> pass
>
> continue
>
> ------------------------
> HP
>
>
>
>
>
> ---------- Forwarded message ----------
> From: HP wei <hpwe...@gmail.com>
> Date: Thu, Oct 1, 2015 at 9:36 AM
> Subject: how to error trapping 'link-info'
> To: factor-talk@lists.sourceforge.net
>
>
> As suggested by John, I test out the following action to
> get the total file sizes of a disk volume.
>
> 0 "a_path_to_big_folder" [ link-info dup symbolic-link? [ drop ] [ size>>
> + ] if ] each-file
>
>
> Our big-folder is on a netapp server shared by tens of people. Many small
> files get updated
> every minutes if not seconds. The update may involve removing the file
> first.
> It has many many subfolders which in turn have more subfolders.
> Each subfolder may have hundreds of files (occasionally in the thousands).
>
> After a few day's discussion with factor guru's, I understand that
> each-file traverses the directory structure by first putting
> entries of a folder in a sequence. And it processes each entry one by one.
> Although this may not cause using big chunk of memory at a time,
> it does have the following issue..
>
> ------------------------
>
> Last night, I left the command running and came back this morning to find
> that it failed with the message.
> lstat: "a path to a file" does not exist !!!
>
> This is because after 'each-file' puts the file into the sequence and then
> when
> it is its turn to be processed, it is not there at the time!!
> Without error trapping, the above "0 ... each-file" could not work in our
> case.
>
> So, I guess I would need to do error-trapping on the word link-info.
> I do not know how to do it. Any hint ?
>
> Thanks
> HP
>
>
>
>
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