[Info-vax] VMS MAIL: order of DELETE

Simon Clubley clubley at remove_me.eisner.decus.org-Earth.UFP
Sun Oct 20 18:50:19 EDT 2019


On 2019-10-20, Volker Halle <volker_halle at hotmail.com> wrote:
> Phillip,
>
> routine mail$cmd_delete in module [MAILSHR] has:
>
>      INCR i FROM 1 TO .mail$gl_message_count
>
> where mail$gl_message_count is 'Number of messages selected'
>
> So if specifying MAIL> DELETE/ALL all the selected mails seem to be
> deleted in ascending message number order.
>

Wouldn't it be more efficient to delete the files in reverse order ?

That way, if you are deleting a large number of messages at once,
you don't end up having to shuffle down directory blocks which are
going to be deleted anyway.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.



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