103 lines
3.3 KiB
Python
103 lines
3.3 KiB
Python
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"""A kernel manager with a tornado IOLoop"""
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# Copyright (c) Jupyter Development Team.
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# Distributed under the terms of the Modified BSD License.
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from tornado import ioloop
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from zmq.eventloop.zmqstream import ZMQStream
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from traitlets import (
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Instance,
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Type,
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)
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from jupyter_client.manager import KernelManager, AsyncKernelManager
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from .restarter import IOLoopKernelRestarter, AsyncIOLoopKernelRestarter
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def as_zmqstream(f):
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def wrapped(self, *args, **kwargs):
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socket = f(self, *args, **kwargs)
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return ZMQStream(socket, self.loop)
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return wrapped
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class IOLoopKernelManager(KernelManager):
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loop = Instance('tornado.ioloop.IOLoop')
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def _loop_default(self):
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return ioloop.IOLoop.current()
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restarter_class = Type(
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default_value=IOLoopKernelRestarter,
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klass=IOLoopKernelRestarter,
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help=(
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'Type of KernelRestarter to use. '
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'Must be a subclass of IOLoopKernelRestarter.\n'
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'Override this to customize how kernel restarts are managed.'
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),
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config=True,
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)
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_restarter = Instance('jupyter_client.ioloop.IOLoopKernelRestarter', allow_none=True)
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def start_restarter(self):
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if self.autorestart and self.has_kernel:
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if self._restarter is None:
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self._restarter = self.restarter_class(
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kernel_manager=self, loop=self.loop,
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parent=self, log=self.log
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)
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self._restarter.start()
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def stop_restarter(self):
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if self.autorestart:
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if self._restarter is not None:
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self._restarter.stop()
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connect_shell = as_zmqstream(KernelManager.connect_shell)
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connect_control = as_zmqstream(KernelManager.connect_control)
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connect_iopub = as_zmqstream(KernelManager.connect_iopub)
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connect_stdin = as_zmqstream(KernelManager.connect_stdin)
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connect_hb = as_zmqstream(KernelManager.connect_hb)
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class AsyncIOLoopKernelManager(AsyncKernelManager):
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loop = Instance('tornado.ioloop.IOLoop')
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def _loop_default(self):
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return ioloop.IOLoop.current()
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restarter_class = Type(
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default_value=AsyncIOLoopKernelRestarter,
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klass=AsyncIOLoopKernelRestarter,
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help=(
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'Type of KernelRestarter to use. '
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'Must be a subclass of AsyncIOLoopKernelManager.\n'
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'Override this to customize how kernel restarts are managed.'
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),
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config=True,
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)
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_restarter = Instance('jupyter_client.ioloop.AsyncIOLoopKernelRestarter', allow_none=True)
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def start_restarter(self):
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if self.autorestart and self.has_kernel:
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if self._restarter is None:
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self._restarter = self.restarter_class(
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kernel_manager=self, loop=self.loop,
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parent=self, log=self.log
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)
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self._restarter.start()
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def stop_restarter(self):
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if self.autorestart:
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if self._restarter is not None:
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self._restarter.stop()
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connect_shell = as_zmqstream(AsyncKernelManager.connect_shell)
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connect_control = as_zmqstream(AsyncKernelManager.connect_control)
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connect_iopub = as_zmqstream(AsyncKernelManager.connect_iopub)
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connect_stdin = as_zmqstream(AsyncKernelManager.connect_stdin)
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connect_hb = as_zmqstream(AsyncKernelManager.connect_hb)
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