Partly resolved, but another issue has popped up.
sub input { my $r = shift;
must be:
sub input { my $f = shift; my $r = $f->r;
However, I'm now getting the following error and the process SEGVs:
-e: Deep recursion on subroutine "ZCRM::OFilter::input" at /opt/code/Z +CRM/OFilter.pm line 42.
and line 42 corresponds to:
$r->input_filters->get_brigade( $bb, Apache2::Const::MODE_READBYTES, APR::Const::BLOCK_READ, IOBUFSIZE );
I've googled around without success. Damnation.
edit
Hate it when sample code copy/pasted from a reputable source fails like this https://perl.apache.org/docs/2.0/api/Apache2/RequestRec.html#C_input_filters_

In reply to Re: mod_perl input filter error by henzen
in thread mod_perl input filter error by henzen

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.