From 94093b5bc6a261f39c5ba736450f6da4d17036ba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mr=C2=B7x?= <as2252258@163.com>
Date: Tue, 8 Sep 2020 17:58:54 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E5=90=8D?=
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---
 System/Cache/Redis.php | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/System/Cache/Redis.php b/System/Cache/Redis.php
index df6ffa02..55c851ef 100644
--- a/System/Cache/Redis.php
+++ b/System/Cache/Redis.php
@@ -295,12 +295,15 @@ class Redis extends Component
 	 */
 	public function lock($key, $timeout = 5)
 	{
-		$redis = $this->proxy();
-		if (!$redis->setnx($key, 1)) {
-			return false;
-		}
-		$redis->expire($key, $timeout);
-		return true;
+		$script = <<<SCRIPT
+local _nx = redis.call('setnx',KEYS[1], ARGV[1])
+if (_nx ~= 0) then
+	redis.call('expire',KEYS[1], ARGV[1])
+	return 1
+end
+return 0
+SCRIPT;
+		return $this->proxy()->eval($script, [$key, $timeout], 1);
 	}