From 7fef6b01a3011438d48136e3f95bb9a823e87ec6 Mon Sep 17 00:00:00 2001
From: Pratik Naik <pratiknaik@gmail.com>
Date: Thu, 5 Feb 2015 16:35:11 +0530
Subject: No cramp and use celluloid workers to run callbacks

---
 lib/action_cable/channel/base.rb |  4 ++--
 lib/action_cable/server.rb       | 43 ++++++++++++++++++++++++++++++++--------
 lib/action_cable/worker.rb       | 19 ++++++++++++++++++
 3 files changed, 56 insertions(+), 10 deletions(-)
 create mode 100644 lib/action_cable/worker.rb

(limited to 'lib/action_cable')

diff --git a/lib/action_cable/channel/base.rb b/lib/action_cable/channel/base.rb
index ae8822d2a2..e311cc97e9 100644
--- a/lib/action_cable/channel/base.rb
+++ b/lib/action_cable/channel/base.rb
@@ -41,13 +41,13 @@ module ActionCable
 
       def subscribe
         self.class.on_subscribe_callbacks.each do |callback|
-          EM.next_tick { send(callback) }
+          send(callback)
         end
       end
 
       def unsubscribe
         self.class.on_unsubscribe_callbacks.each do |callback|
-          EM.next_tick { send(callback) }
+          send(callback)
         end
       end
 
diff --git a/lib/action_cable/server.rb b/lib/action_cable/server.rb
index cdf8ea0f66..ea22f0014e 100644
--- a/lib/action_cable/server.rb
+++ b/lib/action_cable/server.rb
@@ -1,10 +1,11 @@
 require 'set'
+require 'faye/websocket'
+require 'celluloid'
 
-module ActionCable
-  class Server < Cramp::Websocket
-    on_data :received_data
-    on_finish :cleanup_subscriptions
+Celluloid::Actor[:worker_pool] = ActionCable::Worker.pool(size: 100)
 
+module ActionCable
+  class Server
     class_attribute :registered_channels
     self.registered_channels = Set.new
 
@@ -12,12 +13,35 @@ module ActionCable
       def register_channels(*channel_classes)
         self.registered_channels += channel_classes
       end
+
+      def call(env)
+        new(env).process
+      end
     end
 
-    def initialize(*)
-      @subscriptions = {}
+    def initialize(env)
+      @env = env
+    end
+
+    def process
+      if Faye::WebSocket.websocket?(@env)
+        @subscriptions = {}
+
+        @websocket = Faye::WebSocket.new(@env)
 
-      super
+        @websocket.on(:message) do |event|
+          message = event.data
+          Celluloid::Actor[:worker_pool].async.received_data(self, message) if message.is_a?(String)
+        end
+
+        @websocket.on(:close) do |event|
+          Celluloid::Actor[:worker_pool].async.cleanup_subscriptions(self)
+        end
+
+        @websocket.rack_response
+      else
+        invalid_request
+      end
     end
 
     def received_data(data)
@@ -40,7 +64,7 @@ module ActionCable
     end
 
     def broadcast(data)
-      render data
+      @websocket.send data
     end
 
     private
@@ -71,5 +95,8 @@ module ActionCable
         @subscriptions.delete(id_key)
       end
 
+      def invalid_request
+        [404, {'Content-Type' => 'text/plain'}, ['Page not found']]
+      end
   end
 end
diff --git a/lib/action_cable/worker.rb b/lib/action_cable/worker.rb
new file mode 100644
index 0000000000..46b5f7edc0
--- /dev/null
+++ b/lib/action_cable/worker.rb
@@ -0,0 +1,19 @@
+module ActionCable
+  class Worker
+    include ActiveSupport::Callbacks
+    include Celluloid
+
+    define_callbacks :work
+
+    def received_data(connection, data)
+      run_callbacks :work do
+        connection.received_data(data)
+      end
+    end
+
+    def cleanup_subscriptions(connection)
+      connection.cleanup_subscriptions
+    end
+
+  end
+end
-- 
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