Parallel::Dragons is perl framework to create small daemons that repeat the same type of task at regular intervals of time or when an item is added to a queue.

README.pod 1.7KB

=head1 Parallel-Dragons

Do you need to run some code every 2 seconds, but no more than 5 times? Now you can - that's the basic usage of Parallel::Dragons.

Do you have a queue and need to run a block of code for each element of the queue? That's easy - Parallel::Dragons can help you do that.

Parallel::Dragons can be used in a queue driven mode or without a queue.

In the first case it forks (some) children to run elements of the queue and keeps fetching items from the queue and processing them.

In the second case, each children will run main() once and return - and later a new children will be started.


To install this module type the following:

perl Makefile.PL make make test make install


this module requires several other modules, but all are usually part of perl core:

Carp Socket IO::Select IO::Socket::UNIX Time::HiRes Data::Dumper

This module requires these other modules:

Time::HiRes - it sleeps for subsecond intervals when idle


Most of this code was written while working on projects during time - the code was later generalized and move to a namespace that makes (a bit) more sense.


This is licensed with GPL 2.0+ or perl's artistic licence the files with both licences are part of this package

Copyright (C) 2016 by Marco Neves

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.22.1 or, at your option, any later version of Perl 5 you may have available.

Alternativally, you can also redistribute it and/or modify it under the terms of the GPL 2.0 licence (or any future version of it).