def __init__(self, lock):
    _BaseCondition.__init__(self, lock)
    self._nwaiters = 0
    self._notified = False
    self._read_fd = None
    self._write_fd = None
Constructor for SingleNotifyPipeCondition
dataset/ETHPy150Open ganeti/ganeti/lib/locking.py/SingleNotifyPipeCondition.__init__