Source code for itasc.core.cancellation

"""Cooperative-cancellation primitive shared across ITASC pieces.

Long-running workers (segmentation, tracking, correction) poll a ``cancel``
callback and raise :class:`CancelledError` when it returns ``True``. The
exception lives in ``itasc-core`` so the independently-installable pieces can
share one cancellation type without depending on the segmentation stage.
"""
from __future__ import annotations



[docs]
class CancelledError(Exception):
    """Raised when a cooperative cancel signal is observed mid-computation."""



__all__ = ["CancelledError"]