blob: c2b335f45d584585e07e9e3ac504e5c0347ff9ba (
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import types
from typing import Type
# =====
class RegionIsBusyError(Exception):
def __init__(self) -> None:
super().__init__("Performing another operation, please try again later")
class AioExclusiveRegion:
def __init__(self, exc_type: Type[RegionIsBusyError]) -> None:
self.__exc_type = exc_type
self.__busy = False
def is_busy(self) -> bool:
return self.__busy
def enter(self) -> None:
if not self.__busy:
self.__busy = True
return
raise self.__exc_type()
def exit(self) -> None:
self.__busy = False
def __enter__(self) -> None:
self.enter()
def __exit__(
self,
_exc_type: Type[BaseException],
_exc: BaseException,
_tb: types.TracebackType,
) -> None:
self.exit()
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