loop.close()
raise
def to_tornado_future(asyncio_future):
"""Convert an `asyncio.Future` to a `tornado.concurrent.Future`.
.. versionadded:: 4.1
"""
tf = tornado.concurrent.Future()
tornado.concurrent.chain_future(asyncio_future, tf)
return tf
def to_asyncio_future(tornado_future):
"""Convert a Tornado yieldable object to an `asyncio.Future`.
.. versionadded:: 4.1
.. versionchanged:: 4.3
Now accepts any yieldable object, not just
`tornado.concurrent.Future`.
"""
tornado_future = convert_yielded(tornado_future)
af = asyncio.Future()
tornado.concurrent.chain_future(tornado_future, af)
return af
if hasattr(convert_yielded, 'register'):
convert_yielded.register(asyncio.Future, to_tornado_future) # type: ignore
loop.close()
raise
def to_tornado_future(asyncio_future):
"""Convert an `asyncio.Future` to a `tornado.concurrent.Future`.
.. versionadded:: 4.1
"""
tf = tornado.concurrent.Future()
tornado.concurrent.chain_future(asyncio_future, tf)
return tf
def to_asyncio_future(tornado_future):
"""Convert a Tornado yieldable object to an `asyncio.Future`.
.. versionadded:: 4.1
.. versionchanged:: 4.3
Now accepts any yieldable object, not just
`tornado.concurrent.Future`.
"""
tornado_future = convert_yielded(tornado_future)
af = asyncio.Future()
tornado.concurrent.chain_future(tornado_future, af)
return af
if hasattr(convert_yielded, 'register'):
convert_yielded.register(asyncio.Future, to_tornado_future) # type: ignore
try:
super(AsyncIOLoop, self).initialize(loop, close_loop=True, **kwargs)
except Exception:
# If initialize() does not succeed (taking ownership of the loop),
# we have to close it.
loop.close()
raise
def to_tornado_future(asyncio_future):
"""Convert an `asyncio.Future` to a `tornado.concurrent.Future`.
.. versionadded:: 4.1
"""
tf = tornado.concurrent.Future()
tornado.concurrent.chain_future(asyncio_future, tf)
return tf
def to_asyncio_future(tornado_future):
"""Convert a `tornado.concurrent.Future` to an `asyncio.Future`.
.. versionadded:: 4.1
"""
af = asyncio.Future()
tornado.concurrent.chain_future(tornado_future, af)
return af
if hasattr(convert_yielded, 'register'):
convert_yielded.register(asyncio.Future, to_tornado_future)
close_loop=False, **kwargs)
class AsyncIOLoop(BaseAsyncIOLoop):
def initialize(self, **kwargs):
loop = asyncio.new_event_loop()
try:
super(AsyncIOLoop, self).initialize(loop, close_loop=True, **kwargs)
except Exception:
# If initialize() does not succeed (taking ownership of the loop),
# we have to close it.
loop.close()
raise
def to_tornado_future(asyncio_future):
"""Convert an ``asyncio.Future`` to a `tornado.concurrent.Future`."""
tf = tornado.concurrent.Future()
tornado.concurrent.chain_future(asyncio_future, tf)
return tf
def to_asyncio_future(tornado_future):
"""Convert a `tornado.concurrent.Future` to an ``asyncio.Future``."""
af = asyncio.Future()
tornado.concurrent.chain_future(tornado_future, af)
return af
if hasattr(convert_yielded, 'register'):
convert_yielded.register(asyncio.Future, to_tornado_future)
