Function signal_handler

src/borg/helpers/process.py:168–187

When entering the context, set up signal handler for signal . When leaving the context, restore the original signal handler. can be either a str (the name of a signal.SIGXXX attribute; it will not crash if the attribute name does not exist, as some names are pl

(sig, handler)

@contextlib.contextmanager
def signal_handler(sig, handler):
    """
    When entering the context, set up signal handler <handler> for signal <sig>.
    When leaving the context, restore the original signal handler.

    <sig> can be either a str (the name of a signal.SIGXXX attribute; it
    will not crash if the attribute name does not exist, as some names are platform
    specific) or an int (a signal number).

    <handler> is any handler value accepted by signal.signal(sig, handler).
    """
    if isinstance(sig, str):
        sig = getattr(signal, sig, None)
    if sig is not None:
        orig_handler = signal.signal(sig, handler)
    try:
        yield
    finally:
        if sig is not None:
            signal.signal(sig, orig_handler)


def raising_signal_handler(exc_cls):