Class: Redwood::UpdateManager

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/sup/update.rb

Overview

Classic listener/broadcaster paradigm. Handles communication between various parts of Sup.

Usage note: don’t pass threads around. Neither thread nor message equality is defined anywhere in Sup beyond standard object equality. To communicate something about a particular thread, just pass a representative message from it around.

(This assumes that no message will be a part of more than one thread within a single “view”. Luckily, that’s true.)

Instance Method Summary collapse

Methods included from Singleton

included

Constructor Details

#initialize ⇒ UpdateManager

Returns a new instance of UpdateManager.



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# File 'lib/sup/update.rb', line 17

def initialize
  @targets = {}
end

Instance Method Details

#register(o) ⇒ Object 



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# File 'lib/sup/update.rb', line 21

def register o; @targets[o] = true; end

#relay(sender, type, *args) ⇒ Object 



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# File 'lib/sup/update.rb', line 24

def relay sender, type, *args
  meth = "handle_#{type}_update".intern
  @targets.keys.each { |o| o.send meth, sender, *args unless o == sender if o.respond_to? meth }
end

#unregister(o) ⇒ Object 



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# File 'lib/sup/update.rb', line 22

def unregister o; @targets.delete o; end