From c680a1d75af2e9b104ea92669872d74e9e8127b6 Mon Sep 17 00:00:00 2001
From: yangchen <yangchen145@huawei.com>
Date: Thu, 10 Oct 2024 12:32:41 +0800
Subject: [PATCH] set send timeout to 10s

set send timeout to 10s,avoid getting stuck in the send() function for a
long time when there is no space in send buffer
---
 lldp/l2_packet_linux.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lldp/l2_packet_linux.c b/lldp/l2_packet_linux.c
index be9b8af..4ce5e76 100644
--- a/lldp/l2_packet_linux.c
+++ b/lldp/l2_packet_linux.c
@@ -220,6 +220,12 @@ struct l2_packet_data * l2_packet_init(
 		   ifname, MAC2STR(l2->curr_mac_addr),
 		   MAC2STR(l2->perm_mac_addr), MAC2STR(l2->san_mac_addr));
 
+	struct timeval timeout;
+	timeout.tv_sec = 10;
+	timeout.tv_usec = 0;
+	socklen_t len = sizeof(timeout);
+	setsockopt(l2->fd, SOL_SOCKET, SO_SNDTIMEO, &timeout, len);
+
 	struct packet_mreq mr;
 	memset(&mr, 0, sizeof(mr));
 	mr.mr_ifindex = l2->ifindex;
-- 
2.33.0