symfony · fabpot · Sep 4, 2018 · May 31, 2018
diff --git a/src/Symfony/Component/Lock/CHANGELOG.md b/src/Symfony/Component/Lock/CHANGELOG.md
@@ -1,6 +1,11 @@
 CHANGELOG
 =========

+4.2.0
+-----
+
+ * added the PDO Store
+
 3.4.0
 -----


diff --git a/src/Symfony/Component/Lock/Store/MemcachedStore.php b/src/Symfony/Component/Lock/Store/MemcachedStore.php
@@ -57,7 +57,7 @@ public function __construct(\Memcached $memcached, int $initialTtl = 300)
     */
    public function save(Key $key)
    {
-        $token = $this->getToken($key);
+        $token = $this->getUniqueToken($key);
        $key->reduceLifetime($this->initialTtl);
        if (!$this->memcached->add((string) $key, $token, (int) ceil($this->initialTtl))) {
            // the lock is already acquired. It could be us. Let's try to put off.
@@ -80,13 +80,13 @@ public function waitAndSave(Key $key)
    public function putOffExpiration(Key $key, $ttl)
    {
        if ($ttl < 1) {
-            throw new InvalidArgumentException(sprintf('%s() expects a TTL greater or equals to 1. Got %s.', __METHOD__, $ttl));
+            throw new InvalidArgumentException(sprintf('%s() expects a TTL greater or equals to 1 second. Got %s.', __METHOD__, $ttl));
        }

        // Interface defines a float value but Store required an integer.
        $ttl = (int) ceil($ttl);

-        $token = $this->getToken($key);
+        $token = $this->getUniqueToken($key);

        list($value, $cas) = $this->getValueAndCas($key);

@@ -120,7 +120,7 @@ public function putOffExpiration(Key $key, $ttl)
     */
    public function delete(Key $key)
    {
-        $token = $this->getToken($key);
+        $token = $this->getUniqueToken($key);

        list($value, $cas) = $this->getValueAndCas($key);

@@ -144,13 +144,10 @@ public function delete(Key $key)
     */
    public function exists(Key $key)
    {
-        return $this->memcached->get((string) $key) === $this->getToken($key);
+        return $this->memcached->get((string) $key) === $this->getUniqueToken($key);
    }

-    /**
-     * Retrieve an unique token for the given key.
-     */
-    private function getToken(Key $key): string
+    private function getUniqueToken(Key $key): string
    {
        if (!$key->hasState(__CLASS__)) {
            $token = base64_encode(random_bytes(32));