[Web-SIG] A 'shutdown' function in WSGI

Chris McDonough chrism at plope.com
Tue Feb 21 03:21:55 CET 2012

On Mon, 2012-02-20 at 20:54 -0500, PJ Eby wrote:
> 2012/2/20 Chris McDonough <chrism at plope.com>
>         On Mon, 2012-02-20 at 17:39 -0500, PJ Eby wrote:
>         > The standard way to do this would be to define an "optional
>         server
>         > extension" API supplied in the environ; for example, a
>         > 'x-wsgiorg.register_shutdown' function.
>         Unlikely, AFACIT, as shutdown may happen when no request is
>         active.
>         Even if this somehow happened to not be the case, asking the
>         application
>         to put it in the environ is not useful, as the environ can't
>         really be
>         relied on to retain values "up" the call stack.
> "Optional server extension APIs" are things that the server puts in
> the environ, not things the app puts there.  That's why it's
> 'register_shutdown', e.g.
> environ['x-wsgiorg.register_shutdown'](shutdown_function).  

I get it now, but it's still not the right thing I don't think.  Servers
shut down without issuing any requests at all.

- C

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