From 90c9eae23ee588508e0e9b5e65fcb3ca2a8fb10e Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Sat, 1 Aug 2020 12:37:38 +0800
Subject: [PATCH] fd maybe reused while close httpcontext

---
 src/plugins/http/src/httpContext.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/plugins/http/src/httpContext.c b/src/plugins/http/src/httpContext.c
index ad72ac8823..e367911695 100644
--- a/src/plugins/http/src/httpContext.c
+++ b/src/plugins/http/src/httpContext.c
@@ -31,8 +31,8 @@ static void httpRemoveContextFromEpoll(HttpContext *pContext) {
   HttpThread *pThread = pContext->pThread;
   if (pContext->fd >= 0) {
     epoll_ctl(pThread->pollFd, EPOLL_CTL_DEL, pContext->fd, NULL);
-    taosCloseSocket(pContext->fd);
-    pContext->fd = -1;
+    int32_t fd = atomic_val_compare_exchange_32(&pContext->fd, pContext->fd, -1);
+    taosCloseSocket(fd);
   }
 }
 
-- 
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