From: liuyacan <liuyacan@corp.netease.com>
Date: Thu, 24 Jun 2021 12:39:02 +0000 (+0800)
Subject: vcl: fix vcl_session_write_ready when connecting
X-Git-Tag: v22.02-rc0~260
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=cde1769a839db5a732e000fb60822362b6c39e86;p=vpp.git

vcl: fix vcl_session_write_ready when connecting

Applications like curl will poll the fd after a non-blocking
connect, so we need to avoid returning the wrong event.

Type: fix

Signed-off-by: liuyacan <liuyacan@corp.netease.com>
Change-Id: I7ea146fc954fda631b3d88b46bb80adfbcdf137c
---

diff --git a/src/vcl/vcl_private.c b/src/vcl/vcl_private.c
index 95a45ffd099..3ed376e9534 100644
--- a/src/vcl/vcl_private.c
+++ b/src/vcl/vcl_private.c
@@ -317,6 +317,10 @@ vcl_session_write_ready (vcl_session_t * s)
       else
 	return VPPCOM_EBADFD;
     }
+  else if (s->session_state == VCL_STATE_UPDATED)
+    {
+      return 0;
+    }
   else
     {
       return (s->session_state == VCL_STATE_DISCONNECT) ?