Warn when message queues are used without monkey patching

Author: miguelgrinberg

socketio/kombu_manager.py

@@ -47,6 +47,20 @@ def __init__(self, url='amqp://guest:guest@localhost:5672//',
         self.url = url
         self.producer = self._producer()
 
+    def initialize(self, server):
+        super(KombuManager, self).initialize(server)
+
+        monkey_patched = True
+        if server.async_mode == 'eventlet':
+            from eventlet.patcher import is_monkey_patched
+            monkey_patched = is_monkey_patched('socket')
+        elif 'gevent' in server.async_mode:
+            from gevent.monkey import is_module_patched
+            monkey_patched = is_module_patched('socket')
+        if not monkey_patched:
+            raise RuntimeError('Redis requires a monkey patched socket '
+                               'library to work with ' + server.async_mode)
+
     def _connection(self):
         return kombu.Connection(self.url)
 

socketio/redis_manager.py

@@ -43,6 +43,20 @@ def __init__(self, url='redis://localhost:6379/0', channel='socketio',
         super(RedisManager, self).__init__(channel=channel,
                                            write_only=write_only)
 
+    def initialize(self, server):
+        super(RedisManager, self).initialize(server)
+
+        monkey_patched = True
+        if server.async_mode == 'eventlet':
+            from eventlet.patcher import is_monkey_patched
+            monkey_patched = is_monkey_patched('socket')
+        elif 'gevent' in server.async_mode:
+            from gevent.monkey import is_module_patched
+            monkey_patched = is_module_patched('socket')
+        if not monkey_patched:
+            raise RuntimeError('Redis requires a monkey patched socket '
+                               'library to work with ' + server.async_mode)
+
     def _publish(self, data):
         return self.redis.publish(self.channel, pickle.dumps(data))