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""" Defines a dummy socket implementing (part of) the zmq.Socket interface. """
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#-----------------------------------------------------------------------------
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# Copyright (C) 2012 The IPython Development Team
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#
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# Distributed under the terms of the BSD License. The full license is in
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# the file COPYING, distributed as part of this software.
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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# Standard library imports.
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import abc
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try:
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from queue import Queue # Py 3
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except ImportError:
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from Queue import Queue # Py 2
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# System library imports.
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import zmq
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# Local imports.
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from IPython.utils.traitlets import HasTraits, Instance, Int
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from IPython.utils.py3compat import with_metaclass
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#-----------------------------------------------------------------------------
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# Generic socket interface
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#-----------------------------------------------------------------------------
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class SocketABC(with_metaclass(abc.ABCMeta, object)):
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@abc.abstractmethod
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def recv_multipart(self, flags=0, copy=True, track=False):
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raise NotImplementedError
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@abc.abstractmethod
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def send_multipart(self, msg_parts, flags=0, copy=True, track=False):
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raise NotImplementedError
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SocketABC.register(zmq.Socket)
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#-----------------------------------------------------------------------------
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# Dummy socket class
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#-----------------------------------------------------------------------------
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class DummySocket(HasTraits):
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""" A dummy socket implementing (part of) the zmq.Socket interface. """
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queue = Instance(Queue, ())
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message_sent = Int(0) # Should be an Event
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#-------------------------------------------------------------------------
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# Socket interface
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#-------------------------------------------------------------------------
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def recv_multipart(self, flags=0, copy=True, track=False):
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return self.queue.get_nowait()
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def send_multipart(self, msg_parts, flags=0, copy=True, track=False):
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msg_parts = list(map(zmq.Message, msg_parts))
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self.queue.put_nowait(msg_parts)
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self.message_sent += 1
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SocketABC.register(DummySocket)
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