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

[Chris McDonough]

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.

- C


>   The wsgi.org wiki used to be the place to propose these sorts of
> things for standardization, but it appears to no longer be a wiki, so
> the mailing list is probably a good place to discuss such a proposal.
> 
> On Mon, Feb 20, 2012 at 2:30 PM, Tarek Ziadé <ziade.tarek at gmail.com>
> wrote:
>         oops my examples were broken, should be:
>         
>         def hello_world_app(environ, start_response): status = '200
>         OK' # HTTP Status headers = [('Content-type', 'text/plain')]
>         start_response(status, headers) return ["Hello World"] 
>         
>         def shutdown():   # or maybe something else as an argument I
>         don't know
>         do_some_cleanup()
>         
>         
>         
>         and:
>         
>         $ gunicorn myapp:hello_world_app myapp:shutdown
>         
>         
>         
>         Cheers
>         Tarek
>         
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