Implementation of Forks::Super::bg_qx and Forks::Super::bg_eval functions,
Forks::Super::bg_eval tied classes for retrieving results of external commands and Perl subroutines executed in background processes.
See Forks::Super for details.
Marty O'Brien, <email@example.com>
Copyright (c) 2010-2013, Marty O'Brien.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.8 or, at your option, any later version of Perl 5 you may have available.
See http://dev.perl.org/licenses/ for more information.