process_frame raises an error on Channel::Close instead of calling MQ.error

[noteflakes]

When a Channel::Close frame is received, an error is raised instead of calling MQ.error, causing the process to exit unless EM.error_handler is set. Here is a patch to correct this:

diff --git a/lib/mq.rb b/lib/mq.rb
index 893325f..b6cd901 100644
--- a/lib/mq.rb
+++ b/lib/mq.rb
@@ -222,7 +222,7 @@ class MQ
         end
 
       when Protocol::Channel::Close
-        raise Error, "#{method.reply_text} in #{Protocol.classes[method.class_id].methods[method.method_id]} on #{@channel}"
+        MQ.error "#{method.reply_text} in #{Protocol.classes[method.class_id].methods[method.method_id]} on #{@channel}"
 
       when Protocol::Channel::CloseOk
         @closing = false

[noteflakes]

In order to resume operation the following needs to be added after calling MQ.error:

        conn.callback{ |c|
          @channel = c.add_channel(self)
          send Protocol::Channel::Open.new
        }

[botanicus]

Currently you shouldn't need any callback, the AMQP gem reconnects automatically, I just checked. Anyway: ruby-amqp@75e5407