✏️ Editing: disposable.py Read Only

from threading import RLock
from typing import Optional

from reactivex import typing
from reactivex.abc import DisposableBase
from reactivex.internal import noop
from reactivex.typing import Action

class Disposable(DisposableBase):
    """Main disposable class"""

def __init__(self, action: Optional[typing.Action] = None) -> None:
        """Creates a disposable object that invokes the specified
        action when disposed.

Args:
            action: Action to run during the first call to dispose.
                The action is guaranteed to be run at most once.

Returns:
            The disposable object that runs the given action upon
            disposal.
        """

self.is_disposed = False
        self.action: Action = action or noop

self.lock = RLock()

super().__init__()

def dispose(self) -> None:
        """Performs the task of cleaning up resources."""

dispose = False
        with self.lock:
            if not self.is_disposed:
                dispose = True
                self.is_disposed = True

if dispose:
            self.action()

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