From 1370891b934478dd900d00ea8d593d55b90f209d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=90=91=E6=9E=97?= <as2252258@163.com>
Date: Tue, 4 Apr 2023 14:44:09 +0800
Subject: [PATCH] =?UTF-8?q?=E5=8F=98=E6=9B=B4?=
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---
 Mysql/PDO.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Mysql/PDO.php b/Mysql/PDO.php
index 56179f4..f70cd01 100644
--- a/Mysql/PDO.php
+++ b/Mysql/PDO.php
@@ -364,9 +364,12 @@ class PDO implements StopHeartbeatCheck
 	 */
 	private function newClient(): \PDO
 	{
+		while ($this->group->count() > 0) {
+			Coroutine::sleep(0.0001);
+		}
 		$this->group->add();
 		Coroutine::create(function () {
-			\Co\defer(function () {
+			Coroutine::defer(function () {
 				$this->group->done();
 			});
 			$link = new \PDO('mysql:dbname=' . $this->dbname . ';host=' . $this->cds, $this->username, $this->password, [