how to use my own FD in NGINX

[Philippe RAZAVET]

agentzh wrote:
> On Thu, Mar 24, 2011 at 4:37 PM, Philippe RAZAVET
> <razavet at stg-interactive.com>  wrote:
>> Hi
>>
>> I plan to use NGINX HTTP server on Linux, it uses epoll event loop.
>>
>> I want to develop a NGINX proxy module using File Descriptors of my
>> own (not TCP socket) to forward the requests to a back-end service, and let
>> NGINX adds those FDs in his epoll FD set, to handle the responses.
>>
>> What are the steps to achieve this goal ? (I suppose it is much work
>> than a simple proxy module, maybe involving upstream and event module
>> development ?)
>>
> The ngx_drizzle [1] and ngx_postgres [2] modules do register their own
> fd's into the nginx event model. You can take a look at their source
> code. The ngx_http_upstream module can serve as some kind of a basis,
> but it is very limited in its design so we extend it a lot in the two
> modules mentioned above and bypass about half of its code paths.
>
> Cheers,
> -agentzh
>
> [1] https://github.com/chaoslawful/drizzle-nginx-module
> [2] https://github.com/FRiCKLE/ngx_postgres
>
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Thanks ! I will have a look to these modules...