FastCGI handler ignores unsupported signals like USR2 on Windows [Grzegorz Derebecki]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8132 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

railties/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* FastCGI handler ignores unsupported signals like USR2 on Windows.  [Grzegorz Derebecki]
+
 * Only load ActionMailer::TestCase if ActionMailer is loaded.  Closes #10137 [defunkt]
 
 * Fixed that db:reset would use migrations instead of loading db/schema.rb [DHH]

railties/lib/fcgi_handler.rb

@@ -133,7 +133,12 @@ class RailsFCGIHandler
     def install_signal_handler(signal, handler = nil)
       if SIGNALS.include?(signal) && self.class.method_defined?(name = "#{SIGNALS[signal]}_handler")
         handler ||= method(name).to_proc
-        trap(signal, handler)
+
+        begin
+          trap(signal, handler)
+        rescue ArgumentError
+          dispatcher_log :warn, "Ignoring unsupported signal #{signal}."
+        end
       else
         dispatcher_log :warn, "Ignoring unsupported signal #{signal}."
       end