NAME
    Apache2::SafePnotes - a safer replacement for
    Apache2::RequestUtil::pnotes

SYNOPSIS
      use Apache2::SafePnotes;

INSTALLATION
     perl Makefile.PL
     make
     make test
     make install

DEPENDENCIES
    mod_perl2

DESCRIPTION
    This module cures a problem with "Apache2::RequestUtil::pnotes". This
    function stores perl variables making them accessible from various
    phases of the Apache request cycle.

    Unfortunately, the function does not copy a passed variable but only
    increments its reference counter and saves a reference.

    Thus, the following situation could lead to unexpected results:

      my $v=1;
      $r->pnotes( 'v'=>$v );
      $v++;
      my $x=$r->pnotes('v');

    I'd expect $x to be 1 after that code snipped but it turns out to be 2.
    The same goes for the tied hash interface:

      my $v=1;
      $r->pnotes->{v}=$v;
      $v++;
      my $x=$r->pnotes->{v};

    Even now $x is 2.

    With "Apache2::SafePnotes" the problem goes away and $x will be 1 in
    both cases.

  EXPORT
    None.

SEE ALSO
    modperl2, "Apache2::RequestUtil"

AUTHOR
    Torsten Foertsch, <torsten.foertsch@gmx.net>

COPYRIGHT AND LICENSE
    Copyright (C) 2006 by Torsten Foertsch

    This library is free software; you can redistribute it and/or modify it
    under the same terms as Perl itself.