From 560216c2fecfc5cf3489f749dc7a0221fd78eb26 Mon Sep 17 00:00:00 2001
From: Eric Wong <normalperson@yhbt.net>
Date: Mon, 9 Nov 2009 17:15:58 -0800
Subject: Load Unicorn constants when building app

This will benefit users of a copy-on-write-friendly memory
manager provided with Ruby Enterprise Edition.  Additionally,
this will the reduce maintenance impact on Rainbows! in the future
since load/require are not thread-safe under 1.9.
---
 lib/unicorn.rb | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib')

diff --git a/lib/unicorn.rb b/lib/unicorn.rb
index 7fa8468..a696402 100644
--- a/lib/unicorn.rb
+++ b/lib/unicorn.rb
@@ -725,6 +725,10 @@ module Unicorn
 
     def build_app!
       if app.respond_to?(:arity) && app.arity == 0
+        # exploit COW in case of preload_app.  Also avoids race
+        # conditions in Rainbows! since load/require are not thread-safe
+        Unicorn.constants.each { |x| Unicorn.const_get(x) }
+
         if defined?(Gem) && Gem.respond_to?(:refresh)
           logger.info "Refreshing Gem list"
           Gem.refresh
-- 
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