mirror of
https://github.com/crmeb/CRMEB.git
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62 lines
1.7 KiB
PHP
62 lines
1.7 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | CRMEB [ CRMEB赋能开发者，助力企业发展 ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2016~2026 https://www.crmeb.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed CRMEB并不是自由软件，未经许可不能去掉CRMEB相关版权
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// +----------------------------------------------------------------------
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// | Author: CRMEB Team <admin@crmeb.com>
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// +----------------------------------------------------------------------
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namespace crmeb\utils;
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use think\facade\Cache;
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class Lock
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{
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/**
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* @param $key
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* @param $fn
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* @param int $ex
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* @return mixed
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* @author 吴汐
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* @email 442384644@qq.com
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* @date 2023/03/01
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*/
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public function exec($key, $fn, int $ex = 6)
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{
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try {
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$this->lock($key, $key, $ex);
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return $fn();
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} finally {
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$this->unlock($key, $key);
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}
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}
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public function tryLock($key, $value = '1', $ex = 6)
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{
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return Cache::store('redis')->handler()->set('lock_' . $key, $value, ["NX", "EX" => $ex]);
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}
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public function lock($key, $value = '1', $ex = 6)
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{
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if ($this->tryLock($key, $value, $ex)) {
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return true;
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}
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usleep(200);
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$this->lock($key, $value, $ex);
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}
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public function unlock($key, $value = '1')
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{
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$script = <<< EOF
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if (redis.call("get", "lock_" .. KEYS[1]) == ARGV[1]) then
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return redis.call("del", "lock_" .. KEYS[1])
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else
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return 0
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end
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EOF;
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return Cache::store('redis')->handler()->eval($script, [$key, $value], 1) > 0;
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}
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}
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