From 70ec56a0b245c621ff8b699d96e357d50ae6a649 Mon Sep 17 00:00:00 2001
From: Michael Zillgith <michael.zillgith@mz-automation.de>
Date: Fri, 21 Jun 2019 15:10:40 +0200
Subject: [PATCH] - linux socket: set retransmission timeout to 10 s

---
 hal/socket/linux/socket_linux.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/hal/socket/linux/socket_linux.c b/hal/socket/linux/socket_linux.c
index 3dffb576..a89a018d 100644
--- a/hal/socket/linux/socket_linux.c
+++ b/hal/socket/linux/socket_linux.c
@@ -214,6 +214,14 @@ TcpServerSocket_create(const char* address, int port)
         int optionReuseAddr = 1;
         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &optionReuseAddr, sizeof(int));
 
+        int tcpUserTimeout = 10000;
+        int result = setsockopt(fd, SOL_TCP,  TCP_USER_TIMEOUT, &tcpUserTimeout, sizeof(tcpUserTimeout));
+
+        if (result < 0) {
+            if (DEBUG_SOCKET)
+                printf("SOCKET: failed to set TCP_USER_TIMEOUT\n");
+        }
+
         if (bind(fd, (struct sockaddr *) &serverAddress, sizeof(serverAddress)) >= 0) {
             serverSocket = (ServerSocket) GLOBAL_MALLOC(sizeof(struct sServerSocket));
             serverSocket->fd = fd;
@@ -303,6 +311,14 @@ TcpSocket_create()
 
         self->fd = sock;
         self->connectTimeout = 5000;
+
+        int tcpUserTimeout = 10000;
+        int result = setsockopt(sock, SOL_TCP,  TCP_USER_TIMEOUT, &tcpUserTimeout, sizeof(tcpUserTimeout));
+
+        if (result < 0) {
+            if (DEBUG_SOCKET)
+                printf("SOCKET: failed to set TCP_USER_TIMEOUT\n");
+        }
     }
     else {
         if (DEBUG_SOCKET)