[dokuwiki] Re: sessions

On Thu, 04 Oct 2007 13:52:15 +1000
Luke Howson <mail@xxxxxxxxxxxxxx> wrote:

> I know this probably gets asked with some regularity, but I couldn't
> find a good solution:
> 
> I need to use a $_SESSION variable in one of my plugins, but dokuwiki
> has already session_write_close()ed it (in doku.php). I could hook
> into a header event and reopen it, but it would then remain open
> until the end of the script, which doesn't really leave the
> environment how I found it.

open it
write to it
close it again

> Is there a good reason dokuwiki closes the session when it does?

Yes. Session files are locked - only one process may access them at a
time. DokuWiki can spawn many processes simultanously for a single user
(a dokument with a few images will spawn one dou.php and several
fetch.php processes). Closing early makes sure we don't create
unnessary waiting times or deadlocks.

Andi

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