protocol.py 文件源码

def safe_select(r,w,e,timeout=None):
    delay=timeout
    while True:
        try:
            # Make sure we don't delay longer than requested
            start=time.time()
            if delay is not None:
                return _selectfunction(r,w,e,delay)
            else:
                return _selectfunction(r,w,e)
        except select.error,x:
            if x.args[0] == errno.EINTR or (hasattr(errno, 'WSAEINTR') and x.args[0] == errno.WSAEINTR):
                delay=max(0.0,time.time()-start)
            else:
                raise