first commit

vendor/laravel/framework/src/Illuminate/Cache/ArrayLock.php

@@ -0,0 +1,106 @@
+<?php
+
+namespace Illuminate\Cache;
+
+use Illuminate\Support\Carbon;
+
+class ArrayLock extends Lock
+{
+    /**
+     * The parent array cache store.
+     *
+     * @var \Illuminate\Cache\ArrayStore
+     */
+    protected $store;
+
+    /**
+     * Create a new lock instance.
+     *
+     * @param  \Illuminate\Cache\ArrayStore  $store
+     * @param  string  $name
+     * @param  int  $seconds
+     * @param  string|null  $owner
+     * @return void
+     */
+    public function __construct($store, $name, $seconds, $owner = null)
+    {
+        parent::__construct($name, $seconds, $owner);
+
+        $this->store = $store;
+    }
+
+    /**
+     * Attempt to acquire the lock.
+     *
+     * @return bool
+     */
+    public function acquire()
+    {
+        $expiration = $this->store->locks[$this->name]['expiresAt'] ?? Carbon::now()->addSecond();
+
+        if ($this->exists() && $expiration->isFuture()) {
+            return false;
+        }
+
+        $this->store->locks[$this->name] = [
+            'owner' => $this->owner,
+            'expiresAt' => $this->seconds === 0 ? null : Carbon::now()->addSeconds($this->seconds),
+        ];
+
+        return true;
+    }
+
+    /**
+     * Determine if the current lock exists.
+     *
+     * @return bool
+     */
+    protected function exists()
+    {
+        return isset($this->store->locks[$this->name]);
+    }
+
+    /**
+     * Release the lock.
+     *
+     * @return bool
+     */
+    public function release()
+    {
+        if (! $this->exists()) {
+            return false;
+        }
+
+        if (! $this->isOwnedByCurrentProcess()) {
+            return false;
+        }
+
+        $this->forceRelease();
+
+        return true;
+    }
+
+    /**
+     * Returns the owner value written into the driver for this lock.
+     *
+     * @return string
+     */
+    protected function getCurrentOwner()
+    {
+        if (! $this->exists()) {
+            return null;
+        }
+
+        return $this->store->locks[$this->name]['owner'];
+    }
+
+    /**
+     * Releases this lock in disregard of ownership.
+     *
+     * @return void
+     */
+    public function forceRelease()
+    {
+        unset($this->store->locks[$this->name]);
+    }
+}