function RedisStore::exists

Overrides PersistingStoreInterface::exists

File

vendor/symfony/lock/Store/RedisStore.php, line 203

Class

RedisStore

RedisStore is a PersistingStoreInterface implementation using Redis as store engine.

Namespace

Symfony\Component\Lock\Store

Code

public function exists(Key $key) : bool {
    $script = '
            local key = KEYS[1]
            local uniqueToken = ARGV[2]

            -- asserts the KEY is compatible with current version (old Symfony <5.2 BC)
            if redis.call("TYPE", key).ok == "string" then
                return false
            end

            ' . $this->getNowCode() . '

            -- Remove expired values
            redis.call("ZREMRANGEBYSCORE", key, "-inf", now)

            if redis.call("ZSCORE", key, uniqueToken) then
                return true
            end

            return false
        ';
    return (bool) $this->evaluate($script, (string) $key, [
        microtime(true),
        $this->getUniqueToken($key),
    ]);
}