def abort_io(self, iocb, err):
    'Forward the abort downstream.'
    if _debug:
        IOChainMixIn._debug('abort_io %r %r', iocb, err)
    if (iocb is not self.ioChain):
        raise RuntimeError('broken chain')
    self.abort(err)
Forward the abort downstream.
def abort_io(self, iocb, err):
    
    if _debug:
        IOChainMixIn._debug('abort_io %r %r', iocb, err)
    if (iocb is not self.ioChain):
        raise RuntimeError('broken chain')
    self.abort(err)