From 4839fe2e8201835a53ab6c75528a613e8bf25bfb Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Tue, 14 Apr 2009 15:52:23 -0500
Subject: Move bundled rack into ActionDispatch

---
 .../lib/action_dispatch/vendor/rack-1.0/rack/lock.rb     | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 actionpack/lib/action_dispatch/vendor/rack-1.0/rack/lock.rb

(limited to 'actionpack/lib/action_dispatch/vendor/rack-1.0/rack/lock.rb')

diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/lock.rb b/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/lock.rb
new file mode 100644
index 0000000000..93238528c4
--- /dev/null
+++ b/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/lock.rb
@@ -0,0 +1,16 @@
+module Rack
+  class Lock
+    FLAG = 'rack.multithread'.freeze
+
+    def initialize(app, lock = Mutex.new)
+      @app, @lock = app, lock
+    end
+
+    def call(env)
+      old, env[FLAG] = env[FLAG], false
+      @lock.synchronize { @app.call(env) }
+    ensure
+      env[FLAG] = old
+    end
+  end
+end
-- 
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