On Thu, Jun 18, 2009 at 10:22 AM, Adriano Caloiaro <acalo...@gmail.com>wrote:
> Hello,
>
> Could someone point me in the correct direction to support byte range
> responses in mod_perl2? From what I've read, Apache should understand that
> it needs to apply the byterange filter whenever $r->sendfile is used on a
> large file and the Range: header is present in the incoming request.
> However what I'm seeing is that the entire file is returned for each byte
> range requested by the client.
>
> Access log serving off disk in Apache2:
>
> *.*.*.* - - [17/Jun/2009:19:50:30 -0400] "GET
> /mygcx/test/flvplayernew17.flv HTTP/1.1" 206 1 "-" "-"
> *.*.*.* - - [17/Jun/2009:19:50:31 -0400] "GET
> /mygcx/test/flvplayernew17.flv HTTP/1.1" 206 435996 "-" "-"
> *.*.*.* - - [17/Jun/2009:19:50:30 -0400] "GET
> /mygcx/test/flvplayernew17.flv HTTP/1.1" 206 2097152 "-" "-"
>
> Serving from perl handler:
>
> *.*.*.* - - [18/Jun/2009:10:11:43 -0400] "GET
> /mygcx/test/flvplayernew17.flv HTTP/1.1" 200 2533148 "-" "-"
> *.*.*.* - - [18/Jun/2009:10:11:45 -0400] "GET
> /mygcx/test/flvplayernew17.flv HTTP/1.1" 200 2533148 "-" "-"
> *.*.*.* - - [18/Jun/2009:10:11:45 -0400] "GET
> /mygcx/test/flvplayernew17.flv HTTP/1.1" 200 2533148 "-" "-"
>
Maybe these checks are bypassing range processing? (httpd 2.2.x,
byterange_filter.c)
/* Iterate through the brigade until reaching EOS or a bucket with
* unknown length. */
for (e = APR_BRIGADE_FIRST(bb);
(e != APR_BRIGADE_SENTINEL(bb) && !APR_BUCKET_IS_EOS(e)
&& e->length != (apr_size_t)-1);
e = APR_BUCKET_NEXT(e)) {
clength += e->length;
}
/* Don't attempt to do byte range work if this brigade doesn't
* contain an EOS, or if any of the buckets has an unknown length;
* this avoids the cases where it is expensive to perform
* byteranging (i.e. may require arbitrary amounts of memory). */
if (!APR_BUCKET_IS_EOS(e) || clength <= 0) {
ap_remove_output_filter(f);
return ap_pass_brigade(f->next, bb);
}
>
>
> It would seem like re-invited in the wheel if I were to implement RFC 2616
> in perl when there is a byterange filter already present in apache. Thank
> you for any help!
See if these byterange requirements can be met. (Somebody that knows more
about mod_perl may have to check for you. It depends on how data is passed
to httpd.)
