FFI ngx_http_lua_set_req equivilent

[splitice]

As far as I can see there is no equivalent to getfenv(0).__ngx_req for the stream session as far as I can see implemented in the lua stream module.

I dont think I can implement this one myself, however it is a requirement for the FFI side of balancer_by_lua_* (#7)

[agentzh]

@splitice We use __ngx_sess in this context instead.

[splitice]

Thanks I couldn't find that.