ffi experiment. it works, but ctrl-c is no better

Gemfile

@@ -1,7 +1,8 @@
 source 'http://rubygems.org'
 
 gem 'yajl-ruby', '~> 0.7.8', :require => 'yajl'
-gem 'zmq', '~> 2.0.9'
+gem 'ffi', '~> 0.6.3'
+gem 'ffi-rzmq', '~> 0.6.0'
 
 group :development do
   gem 'jeweler', '~> 1.4.0'

Gemfile.lock

@@ -2,13 +2,17 @@ GEM
   remote: http://rubygems.org/
   specs:
     diff-lcs (1.1.2)
+    ffi (0.6.3)
+      rake (>= 0.8.7)
+    ffi-rzmq (0.6.0)
     gemcutter (0.6.1)
     git (1.2.5)
     jeweler (1.4.0)
       gemcutter (>= 0.1.0)
       git (>= 1.2.5)
       rubyforge (>= 2.0.0)
     json_pure (1.4.6)
+    rake (0.8.7)
     rspec (2.0.1)
       rspec-core (~> 2.0.1)
       rspec-expectations (~> 2.0.1)
@@ -23,14 +27,14 @@ GEM
       json_pure (>= 1.1.7)
     yajl-ruby (0.7.8)
     yard (0.6.1)
-    zmq (2.0.9)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  ffi (~> 0.6.3)
+  ffi-rzmq (~> 0.6.0)
   jeweler (~> 1.4.0)
   rspec (~> 2.0.1)
   yajl-ruby (~> 0.7.8)
   yard (~> 0.6.1)
-  zmq (~> 2.0.9)

lib/mongrel2/connection.rb

@@ -1,4 +1,4 @@
-require 'zmq'
+require 'ffi-rzmq'
 require 'mongrel2/request'
 require 'mongrel2/response'
 
@@ -20,7 +20,7 @@ def initialize(uuid, sub, pub, block = true)
     end
 
     def recv
-      msg = @reqs.recv(@block ? 0 : ZMQ::NOBLOCK)
+      msg = @reqs.recv_string(@block ? 0 : ZMQ::NOBLOCK)
       msg.nil? ? nil : Request.parse(msg)
     end
 

lib/mongrel2/response.rb

@@ -54,7 +54,7 @@ def send_http(req, body, status, headers)
   private
 
     def send_resp(uuid, conn_id, data)
-      @resp.send('%s %d:%s, %s' % [uuid, conn_id.size, conn_id, data])
+      @resp.send_string('%s %d:%s, %s' % [uuid, conn_id.size, conn_id, data])
     end
 
     def build_http_response(body, status, headers)