Re: Headers Sent Twice

We should use http_header_sent($r). Otherwise, it seems reasonable...

But looking at this code,

    my $request = eval {
        $interp->make_request( comp => $comp_path,
                               args => [%$args],
                               ah => $self,
                               apache_req => $r,
                             );
    };
    if (my $err = $@) {
        ...
        my $retval = isa_mason_exception($err, 'Abort')   ?
$err->aborted_value  :
                     isa_mason_exception($err, 'Decline') ?
$err->declined_value :

Why are we checking for an abort or decline exception? Is it possible to
call abort or decline during make_request? David, remind me why this is
necessary... :)

Jon

> On Apr 30, 2004, at 9:47 PM, Dave Rolsky wrote:
>
> > But why should Mason be called in this case at all?  If you're going to
> > send output from the pre-Mason callbacks, you might as well skip
> > calling
> > the Mason component altogether, right?
>
> No Mason component is called. However, the AH is created, and
> handle_request and therefore prepare_request() are called. The
> callbacks are executed by the call to $interp->make_request in
> prepare_request(). And it is there that your eval catches exceptions
> and sends headers. So since my callbacks are executing then (and
> really, because Interp can be subclassed, other applications may send
> headers at that point), it makes sense to me to send the headers only
> if they haven't already been sent.
>
> Make sense?
>
> Thanks,
>
> David
>
>
>
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