reader.py 文件源码

def read_byte(self):
        if self.__size < 1:
            raise IndexError('Buffer queue is empty')
        segments = self.__segments
        segment = segments[0]
        segment_len = len(segment)
        offset = self.__offset
        if BufferQueue.is_eof(segment):
            octet = _EOF
        else:
            octet = self.__ord(six.indexbytes(segment, offset))
        offset += 1
        if offset == segment_len:
            offset = 0
            segments.popleft()
        self.__offset = offset
        self.__size -= 1
        self.position += 1
        return octet