Function interruptible

src/scancode/interrupt.py:80–100

POSIX, signals-based interruptible runner.

(func, args=None, kwargs=None, timeout=DEFAULT_TIMEOUT)

    from signal import signal as create_signal

    def interruptible(func, args=None, kwargs=None, timeout=DEFAULT_TIMEOUT):
        """
        POSIX, signals-based interruptible runner.
        """

        def handler(signum, frame):
            raise TimeoutError

        try:
            create_signal(SIGALRM, handler)
            setitimer(ITIMER_REAL, timeout)
            return NO_ERROR, func(*(args or ()), **(kwargs or {}))

        except TimeoutError:
            return TIMEOUT_MSG % locals(), NO_VALUE

        except Exception:
            return ERROR_MSG + traceback_format_exc(), NO_VALUE

        finally:
            setitimer(ITIMER_REAL, 0)

elif on_windows:
    """