edfexecution.py 文件源码

def connect_pipe(pipe, pipeName):
        """
        """
        oldHandler = signal.getsignal(signal.SIGALRM)
        try:
            signal.signal(signal.SIGALRM, SIGALRM_handler)
            signal.alarm(CONNECT_TIMEOUT_SECS + 1)
            retval = os.open(pipeName, os.O_RDONLY)
            signal.alarm(0)
        except OSError:
            # Alarm Timeout
            retval = None
        except BaseException:
            # Keyboard interrupt
            retval = None

        # cancel the alarm and restore prev handler
        signal.signal(signal.SIGALRM, oldHandler)

        return retval