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cedricporter/signal_handler_surprise_me.py

Created July 10, 2014 11:41
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signal handler surprises me
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signal_handler_surprise_me.py
# print 1，2，3，4，5，-1，6，7，8...
import signal
import sys
count = 0
def signal_handler(signum, frame):
global count
count = -1
print 'sig', count
def main():
signal.signal(signal.SIGALRM, signal_handler)
signal.setitimer(signal.ITIMER_REAL, 1, 1)
global count
while True:
for line in sys.stdin:
count += 1
print count
if __name__ == "__main__":
main()
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