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ロギングや同期処理をアスペクトにまとめる。

 require 'thread'
 require 'aspectr'
 include AspectR

 class MutexArary < Array
   attr_reader :mutex

   def initialize
     @mutex = Mutex.new
   end
 end

 class MutexArrayAspect < Aspect
   def lock(method, object, status, *args)
     object.mutex.lock
   end
   
   def unlock(method, object, status, *args)
     object.mutex.unlock
   end
 end

 mutex_aspect = MutexArrayAspect.new
 mutex_aspect.wrap(MutexArray, :lock, :unlock, /\<\