[dev][mod_wsgi] asynchronous extensions
manlio_perillo at libero.it
Wed Mar 5 01:17:44 MSK 2008
Igor Sysoev ha scritto:
> On Tue, Mar 04, 2008 at 01:30:07PM +0100, Manlio Perillo wrote:
>> 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.
> Next answers later.
Igor, thanks for the documentation!
I have solved most of the problems, and I have a working draft.
However I have found a problem, and unfortunately I'm not expert of
As I have written, I'm using libcurl as the HTTP client.
Here is the operations I do:
1) libcurl tells me that it is waiting for the socket to be writeable,
and I call handle_write_event(self->c->write, 0)
Since this is the first time that I see the socket I call
ngx_get_connection and after this I call ngx_add_conn (if defined)
2) libcurl tells me to deregister the socket, and I call
ngx_del_event(self->c->write, NGX_WRITE_EVENT, 0)
3) libcurl tells me that it is waiting for the socket to be readable,
and I call ngx_handle_read_event(self->c->read, 0),
but I get an error:
epoll_ctl(EPOLL_CTL_ADD, 8) failed (17: File exists)
What I'm doing wrong?
Thanks Manlio Perillo
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