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How to use register_pidfile method in autotest

Best Python code snippet using autotest_python

pidfile.py

Source:pidfile.py

...10import fcntl11import atexit121314def register_pidfile(pidfile):15    try:16        fd = os.open(pidfile, os.O_RDWR|os.O_CREAT|os.O_NONBLOCK|os.O_DSYNC)17        fcntl.flock(fd, fcntl.LOCK_EX|fcntl.LOCK_NB)18        os.write(fd, str(os.getpid()))19        atexit.register(clear_pidfile, pidfile=pidfile)2021    except (OSError, IOError), e:22        if e.errno in (35, 11):23            print >> sys.stderr, '%s already running: pid=%s' % (' '.join(sys.argv), open(pidfile).read())24        else:25            print >> sys.stderr, e2627        sys.exit(-1)282930def clear_pidfile(pidfile):31    if os.path.exists(pidfile):32        try:33            os.unlink(pidfile)34        except OSError:35            pass363738if __name__ == '__main__':39    register_pidfile('test.pid')40    print 'pid=%s, running...' % os.getpid()41    import time42    while True:
...

pid.py

Source:pid.py

1import os2import atexit3def register_pidfile(path):4    with open(path, "w") as fh:5        fh.write(str(os.getpid()))6    @atexit.register7    def _cleanup():...

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