Hello! On Thu, Dec 05, 2013 at 02:39:28AM +0530, Reetesh Ranjan wrote:
> Before I send my main request and process the response through > create_request and process_header (and filter) callbacks, I need > to have a short handshake with the upstream servers. It consists > of a send() and a recv() from the upstream module. How to > implement this? > Would the following sequence work?States: H = do-handshake > (initial state), R = do-request1 In state H, send handshake > req first through create_request()2 In process_header() in > state == H 2.1 call 'create_request' again with state set > to R, so main request gets created 2.2 call > 'ngx_http_upstream_send_request' manually to restart the > req-response cycle3 Because of 2.2 we get a process_header() > call in state R > Regards,Reetesh Obvious problem with the sequence: ngx_http_upstream_send_request() is static functions, and can't be called from a protocol module without modifications to ngx_http_upstream.c. I don't think that handshake can be implemented without modifications to upstream module. It's designed to implement request/response logic and doesn't assume any handshakes. -- Maxim Dounin http://nginx.org/en/donation.html _______________________________________________ nginx-devel mailing list [email protected] http://mailman.nginx.org/mailman/listinfo/nginx-devel
