add missing file.

gunicorn/monkey.py

@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -
+#
+# This file is part of gunicorn released under the MIT license.
+# See the NOTICE for more information.
+
+def patch_django():
+    """ monkey patch django.
+
+    This patch make sure that we use real threads to get the ident which
+    is going to happen if we are using gevent or eventlet.
+    """
+
+    try:
+        from django.db import DEFAULT_DB_ALIAS
+        from django.db.backends import BaseDatabaseWrapper, DatabaseError
+
+        if "validate_thread_sharing" in BaseDatabaseWrapper.__dict__:
+            import thread
+            _get_ident = thread.get_ident
+
+            def _init(self, settings_dict, alias=DEFAULT_DB_ALIAS,
+                    allow_thread_sharing=False):
+                self.connection = None
+                self.queries = []
+                self.settings_dict = settings_dict
+                self.alias = alias
+                self.use_debug_cursor = None
+
+                # Transaction related attributes
+                self.transaction_state = []
+                self.savepoint_state = 0
+                self._dirty = None
+                self._thread_ident = _get_ident()
+                self.allow_thread_sharing = allow_thread_sharing
+
+
+            def _validate_thread_sharing(self):
+                if (not self.allow_thread_sharing
+                    and self._thread_ident != _get_ident()):
+                        raise DatabaseError("DatabaseWrapper objects created in a "
+                            "thread can only be used in that same thread. The object "
+                            "with alias '%s' was created in thread id %s and this is "
+                            "thread id %s."
+                            % (self.alias, self._thread_ident, _get_ident()))
+
+            BaseDatabaseWrapper.__init__ = _init
+            BaseDatabaseWrapper.validate_thread_sharing = _validate_thread_sharing
+
+    except ImportError, e:
+        patch_django_db_backends = None
+