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//opt/alt/ruby18/lib64/ruby/gems/1.8/gems/rack-1.6.1/lib/rack/lock.rb
require 'thread' require 'rack/body_proxy' module Rack # Rack::Lock locks every request inside a mutex, so that every request # will effectively be executed synchronously. class Lock FLAG = 'rack.multithread'.freeze def initialize(app, mutex = Mutex.new) @app, @mutex = app, mutex end def call(env) old, env[FLAG] = env[FLAG], false @mutex.lock response = @app.call(env) body = BodyProxy.new(response[2]) { @mutex.unlock } response[2] = body response ensure @mutex.unlock unless body env[FLAG] = old end end end
