corecffi.py 文件源码

 复制代码def _flags_to_int(flags):
    # Note, that order does not matter, libev has its own predefined order
    if not flags:
        return 0
    if isinstance(flags, integer_types):
        return flags
    result = 0
    try:
        if isinstance(flags, basestring):
            flags = flags.split(',')
        for value in flags:
            value = value.strip().lower()
            if value:
                result |= _flags_str2int[value]
    except KeyError as ex:
        raise ValueError('Invalid backend or flag: %s\nPossible values: %s' % (ex, ', '.join(sorted(_flags_str2int.keys()))))
    return result