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# encoding: utf-8
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"""This module contains blocking clients for the controller interfaces.
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Unlike the clients in `asyncclient.py`, the clients in this module are fully
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blocking. This means that methods on the clients return the actual results
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rather than a deferred to the result. Also, we manage the Twisted reactor
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for you. This is done by running the reactor in a thread.
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The main classes in this module are:
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* MultiEngineClient
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* TaskClient
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* Task
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* CompositeError
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"""
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__docformat__ = "restructuredtext en"
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#-------------------------------------------------------------------------------
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# Copyright (C) 2008 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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import sys
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# from IPython.utils import growl
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# growl.start("IPython1 Client")
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from twisted.internet import reactor
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from IPython.kernel.clientconnector import ClientConnector
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from IPython.kernel.twistedutil import ReactorInThread
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from IPython.kernel.twistedutil import blockingCallFromThread
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# These enable various things
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from IPython.kernel import codeutil
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import IPython.kernel.magic
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# Other things that the user will need
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from IPython.kernel.task import MapTask, StringTask
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from IPython.kernel.error import CompositeError
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#-------------------------------------------------------------------------------
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# Code
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#-------------------------------------------------------------------------------
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_client_tub = ClientConnector()
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def get_multiengine_client(furl_or_file=''):
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"""Get the blocking MultiEngine client.
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:Parameters:
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furl_or_file : str
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A furl or a filename containing a furl. If empty, the
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default furl_file will be used
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:Returns:
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The connected MultiEngineClient instance
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"""
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client = blockingCallFromThread(_client_tub.get_multiengine_client,
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furl_or_file)
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return client.adapt_to_blocking_client()
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def get_task_client(furl_or_file=''):
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"""Get the blocking Task client.
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:Parameters:
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furl_or_file : str
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A furl or a filename containing a furl. If empty, the
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default furl_file will be used
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:Returns:
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The connected TaskClient instance
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"""
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client = blockingCallFromThread(_client_tub.get_task_client,
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furl_or_file)
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return client.adapt_to_blocking_client()
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MultiEngineClient = get_multiengine_client
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TaskClient = get_task_client
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# Now we start the reactor in a thread
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rit = ReactorInThread()
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rit.setDaemon(True)
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rit.start()
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