Function next_available_event_offset

util/cbfstool/elogtool.c:129–148

Buffer offset must point to a valid event_header struct */

/* Buffer offset must point to a valid event_header struct */
static size_t next_available_event_offset(const struct buffer *buf)
{
	const struct event_header *event;
	struct buffer copy, *iter = ©

	assert(buffer_offset(buf) >= sizeof(struct elog_header));

	buffer_clone(iter, buf);

	while (buffer_size(iter) >= sizeof(struct event_header)) {
		event = buffer_get(iter);
		if (event->type == ELOG_TYPE_EOL || event->length == 0)
			break;

		assert(event->length <= buffer_size(iter));
		buffer_seek(iter, event->length);
	}

	return buffer_offset(iter) - buffer_offset(buf);
}

/*
 * Shrinks buffer by ~bytes_to_shrink, then appends a LOG_CLEAR event,