# File lib/action_controller/reloader.rb, line 30 def self.run(lock = @@default_lock) lock.lock begin Dispatcher.reload_application status, headers, body = yield # We do not want to call 'cleanup_application' in an ensure block # because the returned Rack response body may lazily generate its data. This # is for example the case if one calls # # render :text => lambda { ... code here which refers to application models ... } # # in an ActionController. # # Instead, we will want to cleanup the application code after the request is # completely finished. So we wrap the body in a BodyWrapper class so that # when the Rack handler calls #close during the end of the request, we get to # run our cleanup code. [status, headers, BodyWrapper.new(body, lock)] rescue Exception lock.unlock raise end end