Method _addval

Lib/dbm/dumb.py:158–166

(self, val)

    # to get to an aligned offset.  Return pair
    #     (starting offset of val, len(val))
    def _addval(self, val):
        with _io.open(self._datfile, 'rb+') as f:
            f.seek(0, 2)
            pos = int(f.tell())
            npos = ((pos + _BLOCKSIZE - 1) // _BLOCKSIZE) * _BLOCKSIZE
            f.write(b'\0'*(npos-pos))
            pos = npos
            f.write(val)
        return (pos, len(val))

    # Write val to the data file, starting at offset pos.  The caller
    # is responsible for ensuring that there's enough room starting at