Http2 Priority

[Muhui Jiang]

Hi

Thank you very much. Valentin

Best Regards
Muhui Jiang

2015-10-13 23:16 GMT+08:00 Valentin V. Bartenev <vbart at nginx.com>:

> On Tuesday 13 October 2015 22:43:48 Muhui Jiang wrote:
> > Hi
> >
> > Thank you so much. Valentin.
> > My understanding:
> > Though clinklittle128.png has higher priority, the server wants to send
> it
> > first to the client. But because of flow control, the clinklittle128.png
> is
> > blocked(waiting for the window update frame). But at this time the server
> > don't want to waste the resource, so it will send the index.html,
> > preloadjs.min.js  etc. When the server received the window update frame,
> > it will send the clinklittle128.png once again. Am I right?
>
> Yes, that's right.
>
>
> >
> > BTW: could you please locate the related source code for me. I want to
> have
> > a deep research on it. Many Thanks
>
> The code related to exhausting flow control window is here:
>
> http://hg.nginx.org/nginx/file/tip/src/http/v2/ngx_http_v2_filter_module.c#l1012
>
> Here is what happens on receiving window update:
> http://hg.nginx.org/nginx/file/tip/src/http/v2/ngx_http_v2.c#l2130
>
>   wbr, Valentin V. Bartenev
>
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