old_contents: # Copyright 2011-2013 Colin Scott
  #
  # 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.
  
  
  from server_socket_multiplexer import ServerMultiplexedSelect,ServerMockSocket
  import select
  import socket
  
  # Note: Make sure that this module is loaded after all other modules except
  # of_01
  
  def launch():
    # Server side:
    #  - Instantiate ServerMultipexedSelect (this will create a true
    #    socket for the pinger)
    #  - override select.select with ServerMultiplexedSelect
    #  - override socket.socket
    #    - takes two params: protocol, socket type
    #    - if not SOCK_STREAM type, return a normal socket
    #  - we don't know bind address until bind() is called
    #  - after bind(), create true socket, create SocketDemultiplexer
    # All subsequent sockets will be instantiated through accept()
    mux_select = ServerMultiplexedSelect()
    # Monkey patch select.select
    select._old_select = select.select
    select.select = mux_select.select
    # Monkey patch socket.socket
    socket._old_socket = socket.socket
    def socket_patch(protocol, sock_type):
      if sock_type == socket.SOCK_STREAM:
        return ServerMockSocket(protocol, sock_type,
                   set_true_listen_socket=mux_select.set_true_listen_socket)
      else:
        socket._old_socket(protocol, sock_type)
    socket.socket = socket_patch
    # TODO(cs): will mux_select be GC'ed?
  
  
new_contents: # Copyright 2011-2013 Colin Scott
  #
  # 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.
  
  
  from server_socket_multiplexer import ServerMultiplexedSelect,ServerMockSocket
  import select
  import socket
  
  # Note: Make sure that this module is loaded after all other modules except
  # of_01; the OpenFlow listen socket needs to be mocked.
  
  def launch():
    # Server side:
    #  - Instantiate ServerMultipexedSelect (this will create a true
    #    socket for the pinger)
    #  - override select.select with ServerMultiplexedSelect
    #  - override socket.socket
    #    - takes two params: protocol, socket type
    #    - if not SOCK_STREAM type, return a normal socket
    #  - we don't know bind address until bind() is called
    #  - after bind(), create true socket, create SocketDemultiplexer
    # All subsequent sockets will be instantiated through accept()
    mux_select = ServerMultiplexedSelect()
    # Monkey patch select.select
    select._old_select = select.select
    select.select = mux_select.select
    # Monkey patch socket.socket
    socket._old_socket = socket.socket
    def socket_patch(protocol, sock_type):
      if sock_type == socket.SOCK_STREAM:
        return ServerMockSocket(protocol, sock_type,
                   set_true_listen_socket=mux_select.set_true_listen_socket)
      else:
        socket._old_socket(protocol, sock_type)
    socket.socket = socket_patch
    # TODO(cs): will mux_select be GC'ed?
  
  
subject: Clarify comment