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wjzhangq/lock_pid.py

Created April 29, 2019 08:34
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lock_pid.py
if __name__ == '__main__':
pid_file = cur_file_dir() + '/logstat.pid'
fp = open(pid_file, 'w')
try:
fcntl.lockf(fp, fcntl.LOCK_EX | fcntl.LOCK_NB)
except IOError:
# another instance is running
sys.exit(0)
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