From e6765c055982209b910fcf619625091431a10d8f Mon Sep 17 00:00:00 2001
From: divinity76 <divinity76@gmail.com>
Date: Mon, 6 Dec 2021 19:24:04 +0100
Subject: [PATCH] Only close curl handle if it's done (#2950)

---
 src/Handler/CurlMultiHandler.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Handler/CurlMultiHandler.php b/src/Handler/CurlMultiHandler.php
index ace0d840c..9e2e4703e 100644
--- a/src/Handler/CurlMultiHandler.php
+++ b/src/Handler/CurlMultiHandler.php
@@ -225,6 +225,10 @@ private function cancel($id): bool
     private function processMessages(): void
     {
         while ($done = \curl_multi_info_read($this->_mh)) {
+            if ($done['msg'] !== \CURLMSG_DONE) {
+                // if it's not done, then it would be premature to remove the handle. ref https://github.com/guzzle/guzzle/pull/2892#issuecomment-945150216
+                continue;
+            }
             $id = (int) $done['handle'];
             \curl_multi_remove_handle($this->_mh, $done['handle']);