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From Brian Pane <>
Subject Re: [PATCH] Re: proxy & cgi no longer streamed, C-L filter buffers
Date Mon, 19 Aug 2002 19:59:48 GMT wrote:

>>To solve the problem that Blaise noted, I believe we'll have to
>>make the content_length filter stop reading buckets altogether
>>(which I think is absolutely the right thing to do, but we'll
>>have to find some other place to compute r->bytes_sent).
>Compute r->bytes_sent in core_output_filter.  That is the only way to get
>an accurate number anyway.

I agree.  We'll have to record the size of the response header in
the HTTP filter in order to subtract it later (because mod_log_config
reports bytes sent excluding the header), but that part is easy.

And that will let us avoid doing reads in the C-L filter altogether,
which makes it easier to later add zero-copy output of pipe buckets
on systems where sendfile can handle pipes as input.

I'll post an updated C-L filter patch later today.


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