C++ (Cpp) rl_key_get Examples

Example #1

File: type_zset.c Project: seppo0010/notion-ios

static int rl_zset_get_objects(rlite *db, const unsigned char *key, long keylen, long *_levels_page_number, rl_btree **btree, long *btree_page, rl_skiplist **skiplist, long *skiplist_page, int update_version, int create)
{
	long levels_page_number = 0, version = 0;
	int retval;
	unsigned long long expires = 0;
	if (create) {
		retval = rl_key_get_or_create(db, key, keylen, RL_TYPE_ZSET, &levels_page_number, &version);
		if (retval != RL_FOUND && retval != RL_NOT_FOUND) {
			goto cleanup;
		}
		else if (retval == RL_NOT_FOUND) {
			retval = rl_zset_create(db, levels_page_number, btree, btree_page, skiplist, skiplist_page);
			goto cleanup;
		}
		else {
			RL_CALL(rl_zset_read, RL_OK, db, levels_page_number, btree, btree_page, skiplist, skiplist_page);
		}
	}
	else {
		unsigned char type;
		retval = rl_key_get(db, key, keylen, &type, NULL, &levels_page_number, &expires, &version);
		if (retval != RL_FOUND) {
			goto cleanup;
		}
		if (type != RL_TYPE_ZSET) {
			retval = RL_WRONG_TYPE;
			goto cleanup;
		}
		RL_CALL(rl_zset_read, RL_OK, db, levels_page_number, btree, btree_page, skiplist, skiplist_page);
	}
	if (update_version) {
		RL_CALL(rl_key_set, RL_OK, db, key, keylen, RL_TYPE_ZSET, levels_page_number, expires, version + 1);
	}
cleanup:
	if (_levels_page_number) {
		*_levels_page_number = levels_page_number;
	}
	return retval;
}

Example #2

File: page_key.c Project: jplevyak/rlite

int rl_key_get_or_create(struct rlite *db, const unsigned char *key, long keylen, unsigned char type, long *page, long *version)
{
	unsigned char existing_type;
	int retval = rl_key_get(db, key, keylen, &existing_type, NULL, page, NULL, version);
	long _version;
	if (retval == RL_FOUND) {
		if (existing_type != type) {
			return RL_WRONG_TYPE;
		}
	}
	else if (retval == RL_NOT_FOUND) {
		_version = rand();
		if (version) {
			*version = _version;
		}
		rl_alloc_page_number(db, page);
		RL_CALL(rl_key_set, RL_OK, db, key, keylen, type, *page, 0, _version);
		retval = RL_NOT_FOUND;
	}
cleanup:
	return retval;
}