Initial Fork from https://bitbucket.org/raphaelmutschler/calibreserver/

lib/tornado/platform/epoll.py

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+#!/usr/bin/env python
+#
+# Copyright 2012 Facebook
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+"""EPoll-based IOLoop implementation for Linux systems."""
+from __future__ import absolute_import, division, print_function, with_statement
+
+import select
+
+from tornado.ioloop import PollIOLoop
+
+
+class EPollIOLoop(PollIOLoop):
+    def initialize(self, **kwargs):
+        super(EPollIOLoop, self).initialize(impl=select.epoll(), **kwargs)