upstream/ipython Files · IPython/zmq/heartbeat.py

use pyzmq tools where appropriate...

use pyzmq tools where appropriate ZMQStream is the right object to use for event-driven handling of messages, but instead we chose to rewrite half of it in KernelManager. This removes most of the duplicate code, in favor of using ZMQStream. also use the pyzmq install() function for using pyzmq with tornado, instead of manually pasting its contents in notebook app.

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             heartbeat.py
        
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      """The client and server for a basic ping-pong style heartbeat.

      """

      #-----------------------------------------------------------------------------

      #  Copyright (C) 2008-2010  The IPython Development Team

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Imports

      #-----------------------------------------------------------------------------

      import socket

      import sys

      from threading import Thread

      import zmq

      from IPython.utils.localinterfaces import LOCALHOST

      #-----------------------------------------------------------------------------

      # Code

      #-----------------------------------------------------------------------------

      class Heartbeat(Thread):

          "A simple ping-pong style heartbeat that runs in a thread."

          def __init__(self, context, addr=(LOCALHOST, 0)):

              Thread.__init__(self)

              self.context = context

              self.ip, self.port = addr

              if self.port == 0:

                  s = socket.socket()

                  # '*' means all interfaces to 0MQ, which is '' to socket.socket

                  s.bind(('' if self.ip == '*' else self.ip, 0))

                  self.port = s.getsockname()[1]

                  s.close()

              self.addr = (self.ip, self.port)

              self.daemon = True

          def run(self):

              self.socket = self.context.socket(zmq.REP)

              self.socket.bind('tcp://%s:%i' % self.addr)

              zmq.device(zmq.FORWARDER, self.socket, self.socket)

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				"""The client and server for a basic ping-pong style heartbeat.
				"""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2008-2010 The IPython Development Team
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------

				import socket
				import sys
				from threading import Thread

				import zmq

				from IPython.utils.localinterfaces import LOCALHOST

				#-----------------------------------------------------------------------------
				# Code
				#-----------------------------------------------------------------------------


				class Heartbeat(Thread):
				"A simple ping-pong style heartbeat that runs in a thread."

				def __init__(self, context, addr=(LOCALHOST, 0)):
				Thread.__init__(self)
				self.context = context
				self.ip, self.port = addr
				if self.port == 0:
				s = socket.socket()
				# '*' means all interfaces to 0MQ, which is '' to socket.socket
				s.bind(('' if self.ip == '*' else self.ip, 0))
				self.port = s.getsockname()[1]
				s.close()
				self.addr = (self.ip, self.port)
				self.daemon = True

				def run(self):
				self.socket = self.context.socket(zmq.REP)
				self.socket.bind('tcp://%s:%i' % self.addr)
				zmq.device(zmq.FORWARDER, self.socket, self.socket)