Major refactoring of django.dispatch with an eye towards speed. The net result is that signals are up to 90% faster.

Though some attempts and backwards-compatibility were made, speed trumped compatibility. Thus, as usual, check BackwardsIncompatibleChanges for the complete list of backwards-incompatible changes.

Thanks to Jeremy Dunck and Keith Busell for the bulk of the work; some ideas from Brian Herring's previous work (refs #4561) were incorporated.

Documentation is, sigh, still forthcoming.

Fixes #6814 and #3951 (with the new dispatch_uid argument to connect).


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8223 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/test/client.py

@@ -11,7 +11,6 @@ from django.contrib.auth import authenticate, login
 from django.core.handlers.base import BaseHandler
 from django.core.handlers.wsgi import WSGIRequest
 from django.core.signals import got_request_exception
-from django.dispatch import dispatcher
 from django.http import SimpleCookie, HttpRequest
 from django.template import TemplateDoesNotExist
 from django.test import signals
@@ -59,7 +58,7 @@ class ClientHandler(BaseHandler):
         if self._request_middleware is None:
             self.load_middleware()
 
-        dispatcher.send(signal=signals.request_started)
+        signals.request_started.send(sender=self.__class__)
         try:
             request = WSGIRequest(environ)
             response = self.get_response(request)
@@ -69,11 +68,11 @@ class ClientHandler(BaseHandler):
                 response = middleware_method(request, response)
             response = self.apply_response_fixes(request, response)
         finally:
-            dispatcher.send(signal=signals.request_finished)
+            signals.request_finished.send(sender=self.__class__)
 
         return response
 
-def store_rendered_templates(store, signal, sender, template, context):
+def store_rendered_templates(store, signal, sender, template, context, **kwargs):
     """
     Stores templates and contexts that are rendered.
     """
@@ -160,7 +159,7 @@ class Client:
         self.cookies = SimpleCookie()
         self.exc_info = None
 
-    def store_exc_info(self, *args, **kwargs):
+    def store_exc_info(self, **kwargs):
         """
         Stores exceptions when they are generated by a view.
         """
@@ -202,10 +201,10 @@ class Client:
         # callback function.
         data = {}
         on_template_render = curry(store_rendered_templates, data)
-        dispatcher.connect(on_template_render, signal=signals.template_rendered)
+        signals.template_rendered.connect(on_template_render)
 
         # Capture exceptions created by the handler.
-        dispatcher.connect(self.store_exc_info, signal=got_request_exception)
+        got_request_exception.connect(self.store_exc_info)
 
         try:
             response = self.handler(environ)

django/test/signals.py

@@ -1 +1,3 @@
-template_rendered = object()
+from django.dispatch import Signal
+
+template_rendered = Signal(providing_args=["template", "context"])

django/test/utils.py

@@ -3,7 +3,6 @@ from django.conf import settings
 from django.db import connection, get_creation_module
 from django.core import mail
 from django.core.management import call_command
-from django.dispatch import dispatcher
 from django.test import signals
 from django.template import Template
 from django.utils.translation import deactivate
@@ -17,7 +16,7 @@ def instrumented_test_render(self, context):
     An instrumented Template render method, providing a signal
     that can be intercepted by the test system Client
     """
-    dispatcher.send(signal=signals.template_rendered, sender=self, template=self, context=context)
+    signals.template_rendered.send(sender=self, template=self, context=context)
     return self.nodelist.render(context)
 
 class TestSMTPConnection(object):