Hobo.busy refactor and mutex fix

lib/hobo/busy.rb

@@ -4,21 +4,12 @@ module Hobo
   end
 
   def self.busy(&block)
-    Mutex.new.synchronize do
-      Busy.busy = true
-      yield
-      Busy.busy = false
-    end
-
-  # In the case were an exception is thrown by the wrapped code
-  # make sure to set busy to sane state and reraise the error
-  rescue Exception => e
-    Busy.busy = false
-    raise
+    Busy.busy(&block)
   end
 
   class Busy
     @@busy = false
+    @@mutex = Mutex.new
     class << self
       def busy?
         @@busy
@@ -27,6 +18,20 @@ module Hobo
       def busy=(val)
         @@busy = val
       end
+
+      def busy(&block)
+        @@mutex.synchronize do
+          Busy.busy = true
+          yield
+          Busy.busy = false
+        end
+        
+        # In the case were an exception is thrown by the wrapped code
+        # make sure to set busy to sane state and reraise the error
+      rescue Exception => e
+        Busy.busy = false
+        raise
+      end
     end
   end
 end

test/hobo/busy_test.rb

@@ -26,7 +26,7 @@ class BusyTest < Test::Unit::TestCase
     should "report busy to the outside world regardless of thread" do
       Thread.new do
         Hobo.busy do
-          sleep(10)
+          sleep(1)
         end
       end