[PATCH] HTTP/2: add fast-path for HTTP/2 requests without request body

[Piotr Sikora]

Hey Valentin,

> With your patch the behavior is different in these cases:
>
> GET / HTTP/1.1
> Host: example.com
> Transfer-Encoding: chunked
>
> 0
>
> and
>
> HEADERS
> DATA length:0 END_STREAM

That wasn't really the case I was optimizing for, but that's a good point.

> Moreover, it depends on the time when DATA frame is processed:
> before ngx_http_read_request_body() call or after.

Does it? Won't content handlers (and thus
ngx_http_v2_read_request_body()) be always called right after HEADERS
frame is processed?

Anyway, both of your patches work as well, so feel free to commit any of those.

Thanks!

Best regards,
Piotr Sikora