def request_io(self, iocb):
    'Called by a client to start processing a request.'
    if _debug:
        IOController._debug('request_io %r', iocb)
    iocb.ioController = self
    try:
        err = None
        iocb.ioState = PENDING
        self.process_io(iocb)
    except:
        err = sys.exc_info()[1]
    if err:
        self.abort_io(iocb, err)
Called by a client to start processing a request.
def request_io(self, iocb):
    
    if _debug:
        IOController._debug('request_io %r', iocb)
    iocb.ioController = self
    try:
        err = None
        iocb.ioState = PENDING
        self.process_io(iocb)
    except:
        err = sys.exc_info()[1]
    if err:
        self.abort_io(iocb, err)