ObjFW  Diff

	_writtenLength += length;

	if (_writtenLength != _length && exception == nil)
		return true;

# ifdef OF_HAVE_BLOCKS
	if (_block != NULL) {
		if (!_block(object, _buffer, _writtenLength, exception))
		_length = _block(object, &_buffer, _writtenLength, exception);

		if (_length == 0)
			return false;

		_writtenLength = 0;
		return true;
	} else {
# endif
		bool (*func)(id, SEL, OFStream *, const void *, size_t, id,
		    id) = (bool (*)(id, SEL, OFStream *, const void *, size_t,
		    id, id))[_target methodForSelector: _selector];

		if (!func(_target, _selector, object, _buffer, _writtenLength,
		    _context, exception))
		_length = func(_target, _selector, object, &_buffer,
		    _writtenLength, _context, exception);

		if (_length == 0)
			return false;

		_writtenLength = 0;
		return true;
# ifdef OF_HAVE_BLOCKS
	}
# endif