List all registered actors with Celluloid::Actor.registered

CHANGES.md

@@ -1,5 +1,6 @@
 0.6.2
 -----
+* List all registered actors with Celluloid::Actor.registered
 * All logging now handled through Celluloid::Logger
 * Rescue DeadActorError in Celluloid::ActorProxy#inspect
 

lib/celluloid/registry.rb

@@ -5,24 +5,29 @@ module Celluloid
   module Registry
     @@registry = {}
     @@registry_lock = Mutex.new
-    
+
     # Register an Actor
     def []=(name, actor)
       actor_singleton = class << actor; self; end
       unless actor_singleton.ancestors.include?(Celluloid::ActorProxy)
         raise ArgumentError, "not an actor"
       end
-      
+
       @@registry_lock.synchronize do
         @@registry[name.to_sym] = actor
       end
     end
-    
+
     # Retrieve an actor by name
     def [](name)
       @@registry_lock.synchronize do
         @@registry[name.to_sym]
       end
     end
+
+    # List all registered actors by name
+    def registered
+      @@registry_lock.synchronize { @@registry.keys }
+    end
   end
-end
+end

spec/celluloid/registry_spec.rb

@@ -3,20 +3,25 @@
 describe Celluloid::Registry do
   class Marilyn
     include Celluloid
-        
+
     def sing_for(person)
       "o/~ Happy birthday, #{person}"
     end
   end
-  
+
   it "registers Actors" do
-    Celluloid::Actor[:marilyn] = Marilyn.spawn
+    Celluloid::Actor[:marilyn] = Marilyn.new
     Celluloid::Actor[:marilyn].sing_for("Mr. President").should == "o/~ Happy birthday, Mr. President"
   end
-  
+
   it "refuses to register non-Actors" do
     expect do
       Celluloid::Actor[:impostor] = Object.new
     end.to raise_error(ArgumentError)
   end
-end
+
+  it "lists all registered actors" do
+    Celluloid::Actor[:marilyn] = Marilyn.spawn
+    Celluloid::Actor.registered.should include :marilyn
+  end
+end