暂存

vendor/illuminate/bus/UniqueLock.php

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+<?php
+
+namespace Illuminate\Bus;
+
+use Illuminate\Contracts\Cache\Repository as Cache;
+use Illuminate\Queue\Attributes\ReadsQueueAttributes;
+use Illuminate\Queue\Attributes\UniqueFor;
+
+class UniqueLock
+{
+    use ReadsQueueAttributes;
+
+    /**
+     * The cache repository implementation.
+     *
+     * @var \Illuminate\Contracts\Cache\Repository
+     */
+    protected $cache;
+
+    /**
+     * Create a new unique lock manager instance.
+     *
+     * @param  \Illuminate\Contracts\Cache\Repository  $cache
+     */
+    public function __construct(Cache $cache)
+    {
+        $this->cache = $cache;
+    }
+
+    /**
+     * Attempt to acquire a lock for the given job.
+     *
+     * @param  mixed  $job
+     * @return bool
+     */
+    public function acquire($job)
+    {
+        $uniqueFor = method_exists($job, 'uniqueFor')
+            ? $job->uniqueFor()
+            : ($this->getAttributeValue($job, UniqueFor::class, 'uniqueFor') ?? 0);
+
+        $cache = method_exists($job, 'uniqueVia')
+            ? ($job->uniqueVia() ?? $this->cache)
+            : $this->cache;
+
+        return (bool) $cache->lock(self::getKey($job), $uniqueFor)->get();
+    }
+
+    /**
+     * Release the lock for the given job.
+     *
+     * @param  mixed  $job
+     * @return void
+     */
+    public function release($job)
+    {
+        $cache = method_exists($job, 'uniqueVia')
+            ? ($job->uniqueVia() ?? $this->cache)
+            : $this->cache;
+
+        $cache->lock(self::getKey($job))->forceRelease();
+    }
+
+    /**
+     * Generate the lock key for the given job.
+     *
+     * @param  mixed  $job
+     * @return string
+     */
+    public static function getKey($job)
+    {
+        $uniqueId = method_exists($job, 'uniqueId')
+            ? $job->uniqueId()
+            : ($job->uniqueId ?? '');
+
+        $jobName = method_exists($job, 'displayName')
+            ? hash('xxh128', $job->displayName())
+            : get_class($job);
+
+        return 'laravel_unique_job:'.$jobName.':'.$uniqueId;
+    }
+}