atom feed6 messages in ru.sysoev.nginxRe: [dev] some questions about subreq...
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Manlio PerilloMar 27, 2008 4:52 am 
Sergey BochenkovMar 27, 2008 7:28 am 
Manlio PerilloMar 28, 2008 5:21 am 
Sergey BochenkovMar 28, 2008 6:13 am 
Manlio PerilloMar 29, 2008 5:18 am 
Manlio PerilloMar 29, 2008 3:15 pm 
Subject:Re: [dev] some questions about subrequests
From:Sergey Bochenkov (bach@public.gmane.org)
Date:Mar 27, 2008 7:28:25 am
List:ru.sysoev.nginx

NGX_HTTP_ZERO_IN_URI:

src/http/ngx_http_core_module.c: sr->zero_in_uri = (flags & NGX_HTTP_ZERO_IN_URI) != 0;

src/http/ngx_http_request.h: /* URI with "\0" or "%00" */ unsigned zero_in_uri:1;

Obviously, IMHO.

NGX_HTTP_SUBREQUEST_IN_MEMORY:

src/http/ngx_http_core_module.c: sr->subrequest_in_memory = (flags & NGX_HTTP_SUBREQUEST_IN_MEMORY) != 0;

src/http/ngx_http_upstream.c: if (!r->subrequest_in_memory) { ngx_http_upstream_send_response(r, u); return; }

/* subrequest content in memory */

...

So, as I can understand from using-of-subrequests point of view, r->subrequest_in_memory flag tells ngx_http_upstream_module to save a pointer to the full chain of response buffers in r->upstream->out_bufs chain-link. And *not-to-free* that buffers after subrequest was finished.

Fix me, if I'm wrong.

Hi.

I would like to add subrequests support in the WSGI module, however I have some doubts.

What's the meaning of the NGX_HTTP_ZERO_IN_URI and NGX_HTTP_SUBREQUEST_IN_MEMORY flags?

Thanks Manlio Perillo