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