From 0bb78ae491192d1e4d6fbb273545cf84adae943e Mon Sep 17 00:00:00 2001
From: Dave C-J <conway@uk.ibm.com>
Date: Sat, 25 Oct 2014 17:52:24 +0100
Subject: [PATCH] Try to ensure TCP node closes server connections on redeploy
 (to clean up properly - especially in case of port changes)

Closes Issue #454
---
 nodes/core/io/31-tcpin.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/nodes/core/io/31-tcpin.js b/nodes/core/io/31-tcpin.js
index 2e4e5e7b2..4747868e2 100644
--- a/nodes/core/io/31-tcpin.js
+++ b/nodes/core/io/31-tcpin.js
@@ -182,8 +182,11 @@ module.exports = function(RED) {
                     node.error('unable to listen on port '+node.port+' : '+err);
                 } else {
                     node.log('listening on port '+node.port);
-
                     node.on('close', function() {
+                        for (var c in connectionPool) {
+                            connectionPool[c].end();
+                            connectionPool[c].unref();
+                        }
                         node.closing = true;
                         server.close();
                         node.log('stopped listening on port '+node.port);
@@ -334,6 +337,10 @@ module.exports = function(RED) {
                 } else {
                     node.log('listening on port '+node.port);
                     node.on('close', function() {
+                        for (var c in connectedSockets) {
+                            connectedSockets[c].end();
+                            connectedSockets[c].unref();
+                        }
                         server.close();
                         node.log('stopped listening on port '+node.port);
                     });