Version 1

[yaffs-website] / web / core / lib / Drupal / Core / Lock / NullLockBackend.php

diff --git a/web/core/lib/Drupal/Core/Lock/NullLockBackend.php b/web/core/lib/Drupal/Core/Lock/NullLockBackend.php
new file mode 100644 (file)
index 0000000..65bf65a
--- /dev/null
+++ b/web/core/lib/Drupal/Core/Lock/NullLockBackend.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Drupal\Core\Lock;
+
+/**
+ * Defines a Null lock backend.
+ *
+ * This implementation won't actually lock anything and will always succeed on
+ * lock attempts.
+ *
+ * @ingroup lock
+ */
+class NullLockBackend implements LockBackendInterface {
+
+  /**
+   * Current page lock token identifier.
+   *
+   * @var string
+   */
+  protected $lockId;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function acquire($name, $timeout = 30.0) {
+    return TRUE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function lockMayBeAvailable($name) {
+    return TRUE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function wait($name, $delay = 30) {}
+
+  /**
+   * {@inheritdoc}
+   */
+  public function release($name) {}
+
+  /**
+   * {@inheritdoc}
+   */
+  public function releaseAll($lock_id = NULL) {}
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getLockId() {
+    if (!isset($this->lockId)) {
+      $this->lockId = uniqid(mt_rand(), TRUE);
+    }
+    return $this->lockId;
+  }
+
+}