def improvedSignalHandler(signum, frame):
"""Improved signal handler that dispatches to registered handlers."""
signame = get_signal_name(signum)
LOG.info("Caught signal %s" % signame)
for handler in OriginalSignalHandler.registry.get(signum, []):
# Never let a bad handler prevent the standard signal
# handlers from running.
try:
if inspect.getargspec(handler).args:
handler(signum, frame)
else:
handler()
except Exception:
LOG.warn('A handler for %s failed!' % signame,
exc_info=sys.exc_info())
def improvedSignalHandler(signum, frame):
"""Improved signal handler that dispatches to registered handlers."""
signame = get_signal_name(signum)
LOG.info("Caught signal %s" % signame)
for handler in OriginalSignalHandler.registry.get(signum, []):
# Never let a bad handler prevent the standard signal
# handlers from running.
try:
if inspect.getargspec(handler).args:
handler(signum, frame)
else:
handler()
except SystemExit:
# if we trap SystemExit, we can't restart
raise
except:
LOG.warn('A handler for %s failed!' % signame,
exc_info=sys.exc_info())
def upgradeHandler(signum):
signal.signal(signum, improvedSignalHandler)
signame = get_signal_name(signum)
LOG.debug("Upgraded sighandler for %s", signame)