Reflex::POE::Wheel::Run - Represent POE::Wheel::Run as a Reflex class.
This document describes version 0.093, released on January 19, 2012.
Unfortunately there isn't a concise, completely executable example for the synopsis at this time. Please see eg-07-wheel-run.pl and eg-08-watched-trait.pl in the distribution's eg directory for longer but fully executable ones.
watches child => ( isa => 'Reflex::POE::Wheel::Run|Undef', ); sub BUILD { my $self = shift; $self->child( Reflex::POE::Wheel::Run->new( Program => "$^X -wle 'print qq[pid(\$\$) moo(\$_)] for 1..10; exit'", ) ); } sub on_child_stdout { my ($self, $event) = @_; print "stdout: ", $event->output(), "\n"; } sub on_child_close { my ($self, $event) = @_; print "child closed all output\n"; } sub on_child_signal { my ($self, $event) = @_; print "child ", $event->pid(), " exited: ", $event->exit(), "\n"; $self->child(undef); }
Reflex::POE::Wheel::Run represents an enhanced POE::Wheel::Run object. It will manage a child process, and it will also wait for (and report on) the corresponding SIGCHLD.
This module delegates to POE::Wheel::Run for most of its implementation. Please refer to that module for implementation details.
This class adds public methods specific to POE::Wheel::Run's operation. However, common methods like put() are both implemented and documented in the base Reflex::POE::Wheel class.
kill() passes its arguments to POE::Wheel::Run's kill() method.
Objects of this class emit all of POE::Wheel::Run's events, albeit renamed into Reflex-friendly forms. Generally these forms are determined by removing the "Event" suffix and lowercasing what remains. POE::Wheel::Run's StdinEvent becomes "stdin", and so on.
See POE::Wheel::Run's StdinEvent. Within Reflex, this event comes with only one parameter: "wheel_id". This is the POE::Wheel::Run object's ID.
See POE::Wheel::Run's StdoutEvent. Reflex includes two parameters: "wheel_id" and "output". The latter parameter contains data the child process wrote to its STDOUT handle.
See POE::Wheel::Run's StderrEvent. Reflex includes two parameters: "wheel_id" and "output". The latter parameter contains data the child process wrote to its STDERR handle.
See POE::Wheel::Run's ErrorEvent. Reflex maps the wheel's parameters to: "operation", "errnum", "errstr", "wheel_id" and "handle_name", respectively.
See POE::Wheel::Run's CloseEvent. Reflex includes only one parameter for this event: "wheel_id".
This class could further be improved so that it doesn't report SIGCHLD until all the child's output has been received and processed. This would resolve a long-standing nondeterminism in the timing of on_child_close() vs. on_child_signal().
Please see those modules/websites for more information related to this module.
Reflex
Moose::Manual::Concepts
Reflex::POE::Event
Reflex::POE::Postback
Reflex::POE::Session
Reflex::POE::Wheel
"ACKNOWLEDGEMENTS" in Reflex
"ASSISTANCE" in Reflex
"AUTHORS" in Reflex
"BUGS" in Reflex
"CONTRIBUTORS" in Reflex
"COPYRIGHT" in Reflex
"LICENSE" in Reflex
"TODO" in Reflex
No bugs have been reported.
Please report any bugs or feature requests through the web interface at http://rt.cpan.org.
Rocco Caputo <rcaputo@cpan.org>
This software is copyright (c) 2012 by Rocco Caputo.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
The latest version of this module is available from the Comprehensive Perl Archive Network (CPAN). Visit http://www.perl.com/CPAN/ to find a CPAN site near you, or see http://search.cpan.org/dist/Reflex/.
The development version lives at http://github.com/rcaputo/reflex and may be cloned from git://github.com/rcaputo/reflex.git. Instead of sending patches, please fork this project using the standard git and github infrastructure.
BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
To install Reflex, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Reflex
CPAN shell
perl -MCPAN -e shell install Reflex
For more information on module installation, please visit the detailed CPAN module installation guide.