Moved Lock.php back to Utils

src/Core/Lock/SemaphoreLockDriver.php

@@ -1,82 +0,0 @@
-<?php
-
-namespace Friendica\Core\Lock;
-
-class SemaphoreLockDriver implements ILockDriver
-{
-	/**
-	 * @var array stored semaphores
-	 */
-	private static $semaphore = [];
-
-	/**
-	 * @brief Creates a semaphore key
-	 *
-	 * @param string $key Name of the lock
-	 *
-	 * @return integer the semaphore key
-	 */
-	private static function semaphoreKey($key)
-	{
-		$temp = get_temppath();
-
-		$file = $temp.'/'.$key.'.sem';
-
-		if (!file_exists($file)) {
-			file_put_contents($file, $key);
-		}
-
-		return ftok($file, 'f');
-	}
-
-	/**
-	 *
-	 * @brief Sets a lock for a given name
-	 *
-	 * @param string $key The Name of the lock
-	 * @param integer $timeout Seconds until we give up
-	 *
-	 * @return boolean Was the lock successful?
-	 */
-	public function acquireLock($key, $timeout = 120)
-	{
-		// The second parameter for "sem_acquire" doesn't exist before 5.6.1
-		if (function_exists('sem_get') && version_compare(PHP_VERSION, '5.6.1', '>=')) {
-			self::$semaphore[$key] = sem_get(self::semaphoreKey($key));
-			if (self::$semaphore[$key]) {
-				return sem_acquire(self::$semaphore[$key], ($timeout == 0));
-			}
-		}
-	}
-
-	/**
-	 * @brief Removes a lock if it was set by us
-	 *
-	 * @param string $key Name of the lock
-	 *
-	 * @return mixed
-	 */
-	public function releaseLock($key)
-	{
-		if (function_exists('sem_get') && version_compare(PHP_VERSION, '5.6.1', '>=')) {
-			if (empty(self::$semaphore[$key])) {
-				return false;
-			} else {
-				$success = @sem_release(self::$semaphore[$key]);
-				unset(self::$semaphore[$key]);
-				return $success;
-			}
-		}
-	}
-
-	/**
-	 * @brief Removes all lock that were set by us
-	 *
-	 * @return void
-	 */
-	public function releaseAll()
-	{
-		// not needed/supported
-		return;
-	}
-}