Generic TCP and UDP server support

manchev · 2014-12-23T21:41:24+00:00

Hi folks I've been working on some new GDB extension tools for setting GDB breakpoints directly on Lua function call entries and returns interpreted by LuaJ...

Generic TCP and UDP server support

manchev

Hi,

It's really exciting to see all the stuff planned for next year and I'm quite interested in the TCP and UDP servers and the new possibilities these features open up.

So, I decided to dive deeper into nginx plugin development and at least try implementing these features.

I already have some very simple boilerplate code to get me started, but I'm really interested to hear your and especially Yichun's thoughts on the matter.

What I'm asking for is mostly some general pointers as to how to go about this and any problems anticipated. Maybe there's some RFC or docs roughly outlining the solution. Also, it would be good to know if there is already some code implemented so there's no duplication of effort.

Best,
Vladislav

agentzh

Hello!

On Tue, Dec 23, 2014 at 5:41 AM, Vladislav Manchev wrote:
> What I'm asking for is mostly some general pointers as to how to go about
> this and any problems anticipated. Maybe there's some RFC or docs roughly
> outlining the solution. Also, it would be good to know if there is already
> some code implemented so there's no duplication of effort.
>

Simon's tcp lua module can serve as a good reference for this:

    https://github.com/bigplum/nginx-tcp-lua-module

though I don't quite like duplicating most of the code of
ngx_http_lua_module. Maybe we can just inherit most of the http data
structures in the tcp {} context to maximize code reuse though it's a
bit unnecessarily wasteful. I'm not sure yet at this point and I'm
open to suggestions for a better design :)

Regards,
-agentzh