timeout on background jobs

app/models/asset_image_conversion_request.rb

@@ -1,6 +1,9 @@
 require 'resque-retry'
+require 'timeout'
 
 class AssetImageConversionRequest
+  TIMEOUT_IN_SECONDS = 30
+  
   extend Resque::Plugins::Retry
 
   @retry_limit = 5
@@ -9,9 +12,11 @@ class AssetImageConversionRequest
   @queue = :requested_asset_images
 
   def self.perform(asset_id)
+    Timeout::timeout(TIMEOUT_IN_SECONDS) do
       asset = SwfAsset.find(asset_id)
       asset.convert_swf_if_not_converted!
     end
+  end
 
   class OnCreation < AssetImageConversionRequest
     @retry_limit = 5

app/models/outfit_image_update.rb

@@ -1,9 +1,15 @@
+require 'timeout'
+
 class OutfitImageUpdate
+  TIMEOUT_IN_SECONDS = 30
+  
   @queue = :outfit_image_updates
 
   def self.perform(id)
+    Timeout::timeout(TIMEOUT_IN_SECONDS) do
       Outfit.find(id).write_image!
     end
+  end
   
   # Represents an outfit image update for an outfit that existed before this
   # feature was built. Its queue has a lower priority, so new outfits will