Re: [hybi] Impact of mandatory chunking (was Re: Background info: Properties of sendfile())

[Maciej Stachowiak <[e-mail]>]

On Aug 6, 2010, at 2:14 PM, Jack Moffitt wrote:

>> It's not only the sender and intermediaries that are affected by mandatory chunking. The receiver is affected too. In the case of the browser as receiver, it is highly valuable to have the length up front, so the browser can either pre-allocate a memory buffer of the appropriate size, or decide to start spooling to disk right away if it knows the message will be too large to fit in memory. I imagine this will be useful in at least some cases of the server as receiver too.
> 
> Having a length is orthogonal to chunking. There's little reason not
> to include it with the first chunk when it is known. Several of the
> proposals have added that now.
> 
> If the field is dynamic and we have the machinery for chunking, then
> everything is possible. It becomes only a question of whether both
> methods will be reliably implemented. It seems feasible to believe
> that they will, and so I hope everyone will be satisfied by this
> compromise.

I agree that supporting both chunking and large lengths is reasonable.

Regards,
Maciej