Created
December 3, 2015 06:07
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import signal | |
class GracefulInterruptHandler(object): | |
def __init__(self, sig=signal.SIGINT): | |
self.sig = sig | |
def __enter__(self): | |
self.interrupted = False | |
self.released = False | |
self.original_handler = signal.getsignal(self.sig) | |
def handler(signum, frame): | |
self.release() | |
self.interrupted = True | |
signal.signal(self.sig, handler) | |
return self | |
def __exit__(self, type, value, tb): | |
self.release() | |
def release(self): | |
if self.released: | |
return False | |
signal.signal(self.sig, self.original_handler) | |
self.released = True | |
return True |
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