def _readinto_chunked(self, b):
        assert self.chunked != _UNKNOWN
        chunk_left = self.chunk_left

        total_bytes = 0
        mvb = memoryview(b)
        while True:
            if chunk_left is None:
                try:
                    chunk_left = self._read_next_chunk_size()
                    if chunk_left == 0:
                        break
                except ValueError:
                    raise IncompleteRead(bytes(b[0:total_bytes]))

            if len(mvb) < chunk_left:
                n = self._safe_readinto(mvb)
                self.chunk_left = chunk_left - n
                return total_bytes + n
            elif len(mvb) == chunk_left:
                n = self._safe_readinto(mvb)
                self._safe_read(2)  # toss the CRLF at the end of the chunk
                self.chunk_left = None
                return total_bytes + n
            else:
                temp_mvb = mvb[0:chunk_left]
                n = self._safe_readinto(temp_mvb)
                mvb = mvb[n:]
                total_bytes += n

            # we read the whole chunk, get another
            self._safe_read(2)      # toss the CRLF at the end of the chunk
            chunk_left = None

        self._read_and_discard_trailer()

        # we read everything; close the "file"
        self._close_conn()

        return total_bytes
dataset/ETHPy150Open OpenCobolIDE/OpenCobolIDE/open_cobol_ide/extlibs/future/backports/http/client.py/HTTPResponse._readinto_chunked/original