mapped_struct.py 文件源码

def __init__(self, buf, offset = 0):
        # Accelerate class attributes
        self._encode = self.encode
        self._dtype = self.dtype
        self._xxh = self.xxh

        # Initialize buffer
        if offset:
            self._buf = self._likebuf = buffer(buf, offset)
        else:
            self._buf = buf
            self._likebuf = _likebuffer(buf)

        # Parse header and map index
        self.index_elements, self.index_offset = self._Header.unpack_from(self._buf, 0)

        self.index = numpy.ndarray(buffer = self._buf, 
            offset = self.index_offset, 
            dtype = self.dtype, 
            shape = (self.index_elements, 3))