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55 lines
1.3 KiB
55 lines
1.3 KiB
<?php
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declare(strict_types = 1);
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namespace App\Utils\Traits;
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use RedisException;
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trait RedisLockUtil
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{
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/**
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* 加锁
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* @param string $lock_str 锁字符串
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* @param int $expire_time 超时时间，默认300秒
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* @return false|string
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* @throws RedisException
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*/
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public function addLock(string $lock_str, int $expire_time = 300): bool|string
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{
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$redis = app('redis');
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$unique_id = $this->getUniqueLockId();
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$result = $redis->set($lock_str, $unique_id, 'ex', $expire_time, 'nx');
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return $result ? $unique_id : false;
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}
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/**
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* 解锁
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* @param string $lock_str 锁字符串
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* @param string $unique_id 唯一锁ID
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* @return bool
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* @throws RedisException
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*/
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public function unlock(string $lock_str, string $unique_id): bool
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{
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$redis = app('redis');
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$redis->watch($lock_str);
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if ($unique_id == $redis->get($lock_str)) {
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$redis->multi()->del($lock_str)->exec();
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return true;
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}
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$redis->unwatch();
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return false;
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}
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/**
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* 获取唯一锁ID
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* @return string
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*/
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protected function getUniqueLockId(): string
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{
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return md5(uniqid((string)mt_rand(), true));
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}
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}
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