NAME

       Tirex::Source - A source of a job request

SYNOPSIS

        my $source = Tirex::Source::...->new();
        $source->readable($socket);
        $source->writable($socket);
        $source->notify();

DESCRIPTION

       This is a virtual parent class. Only instantiate subclasses: Tirex::Source::Command,
       Tirex::Source::ModTile, Tirex::Source::Test

METHODS

       Each subclass must define the following methods:

   Tirex::Source::...->new()
       Create new object of this source class.

   $source->readable($socket) =head2 $source->writable($socket)
       These methods are called if the socket that was associated to this source object becomes
       readable or writable.

       The source will return true from any of these if reading/writing has been completed, and
       false if waits for another chance to read/write.

   $source->notify()
       This method is called once a tile has been rendered to notify the source.