[dev][mod_wsgi] asynchronous extensions
manlio_perillo at libero.it
Tue Mar 4 15:49:44 MSK 2008
Manlio Perillo ha scritto:
> Manlio Perillo ha scritto:
>> Its time to add asynchronous extensions to the WSGI module.
>> I'm developing a WSGI application where I need to talk with a web
>> service on the Internet, so it is *very* important to use an
>> asynchronous HTTP client.
> Some more detailed questions:
> 5) It seems that the event module does not allow me to register an
> event for both read and write notifications.
> This can be a problem for me, since I have to manage two callbacks...
> I have to check.
> Moreover there is a difference in how events are handled in the
> select and poll module, as an example.
> For the select module it is the passed in event object that is
> posted, and I have no way to know if the socket is ready for reading
> or writing.
> With the poll module it is the event->data->read and/or
> event->data->write that is posted.
> What's the rationale?
> I'm not an expert, but why the select module does not do the same as
> the poll module?
Ok, forget this ;-).
For adding both read and write events I have only to call add_event two
times, or just use the handle_read_event and handle_write_event functions.
There is still the problem of having to handle read and write events
can handle both read and write event in one call.
Thanks Manlio Perillo
More information about the nginx