56 lines
1.6 KiB
Python
56 lines
1.6 KiB
Python
from abc import ABC, abstractmethod
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import asyncio
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import concurrent.futures
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from typing import Callable, Coroutine, Optional
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from .._types import Errors
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from ._base import XmppBaseMixin
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# pylint: disable=too-few-public-methods
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class XmppAsyncMixin(XmppBaseMixin, ABC):
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"""
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This mixin provides a common interface for aioxmpp's asyncio interface.
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"""
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@abstractmethod
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def __init__(
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self, *args, loop: Optional[asyncio.AbstractEventLoop] = None, **kwargs
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):
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self._loop = loop
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super().__init__(*args, **kwargs)
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def _async_run(
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self,
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coro: Callable[..., Coroutine],
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*args,
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timeout: Optional[float] = XmppBaseMixin.DEFAULT_TIMEOUT,
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wait_result: bool = True,
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**kwargs,
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):
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"""
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Utility method to call an async action from the thread of the parent
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action.
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"""
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assert self._loop, Errors.LOOP
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fut = asyncio.run_coroutine_threadsafe(coro(*args, **kwargs), self._loop)
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if wait_result:
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err = None
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try:
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return fut.result(timeout)
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except (TimeoutError, concurrent.futures.TimeoutError) as e:
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self.logger.warning(
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'Call to %s timed out after %f seconds', coro, timeout
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)
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err = e
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except Exception as e:
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self.logger.warning('Call to %s failed: %s', coro, e)
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self.logger.exception(e)
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err = e
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finally:
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assert not err, str(err)
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return None
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