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perl-POE: POE - portable multitasking and networking framework for Perl
- Summary
- POE is a framework for cooperative, event driven multitasking in Perl. Other
languages have similar frameworks. Python has Twisted. TCL has "the event
loop".
POE originally was developed as the core of a persistent object server and
runtime environment. It has evolved into a general purpose multitasking and
networking framework, encompassing and providing a consistent interface to
other event loops such as Event and the Tk and Gtk toolkits.
POE is written in layers, each building upon the previous. It's therefore
possible to use POE at varying levels of abstraction.
The lowest level uses POE::Kernel and POE::Session. The former class acts as
POE's event watcher and dispatcher. The latter encapsulates the notion of an
event driven task.
POE::Wheel classes operate at a slightly higher level. They plug into sessions
and perform very common, general tasks. For example, POE::Wheel::ReadWrite
performs buffered I/O.
Unlike cheese, wheels do not stand alone. They are customized by POE::Driver
and POE::Filter classes. Using the proper filter, a ReadWrite wheel can read
and write streams, lines, fixed-length blocks, HTTP requests and responses,
and so on.
The highest level of POE programming uses components. They may perform
narrowly defined tasks, such as POE::Component::Child (on the CPAN). Often
they encapsulate nearly everything necessary for an entire program.
Every level eventually boils down to the lowest common
denominator---POE::Kernel and POE::Session. Because of this, classes coexist
and cooperate at every level of abstraction.
Changelog
- * Fri Mar 23 17:00:00 2007 Chris Weyl <cweyl{%}alumni{*}drew{*}edu> 0.9989-1
- update to 0.9989
- * Wed Mar 21 17:00:00 2007 Chris Weyl <cweyl{%}alumni{*}drew{*}edu> 0.9917-1
- update to 0.9917. 0.3800-1, below, was never built/released to the wild.
- * Mon Sep 25 17:00:00 2006 Chris Weyl <cweyl{%}alumni{*}drew{*}edu> 0.3800-1
- update to 0.38. 0.37-1, below, was never built/released to the wild.