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From Martin Townsend <>
Subject Re: Question on sub requests and output filter context.
Date Tue, 20 Sep 2011 08:43:16 GMT
On 19/09/2011 16:48, Nick Kew wrote:
> On Thu, 15 Sep 2011 11:52:38 +0100
> Martin Townsend<>  wrote:
>>      Should this new filter also
>> inherit the output filters context?  Am I doing something wrong with my
>> use of mod_include?  I've tried moving my filter so it's after
>> mod_include but still the same problem.
> This looks reminiscent of
> a bug that lurked a long time before being fixed!
> I suggest you read that - particularly comment 30 and later,
> and see if it sheds any light on your problem.

I have a solution to my problem but it seems like a bit of a hack. After 
looking through the source code I found that the only structure that I 
could use was the subprocess_env table in the request as this is copied 
between requests and sub requests.

AP_DECLARE(void) ap_set_sub_req_protocol(request_rec *rnew,
                                          const request_rec *r)
     rnew->subprocess_env  = apr_table_copy(rnew->pool, r->subprocess_env);
     rnew->headers_out     = apr_table_make(rnew->pool, 5);
     rnew->err_headers_out = apr_table_make(rnew->pool, 5);
     rnew->notes           = apr_table_make(rnew->pool, 5);


Maybe a better solution would be to use my modules configuration and 
then ensure the hash tables are removed using a cleanup handler that is 
fired at the end of the request.

Best Regards,

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