From c9a415c469f3080c820e92b721b3b4b872148a2d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bar=C4=B1=C5=9F=20Soner=20U=C5=9Fakl=C4=B1?=
 <baris@nodebb.org>
Date: Sat, 13 Oct 2018 18:26:08 -0400
Subject: [PATCH] check if process.send exists

---
 src/pubsub.js | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/pubsub.js b/src/pubsub.js
index 6f2af3dae8..59ab8507c9 100644
--- a/src/pubsub.js
+++ b/src/pubsub.js
@@ -18,11 +18,15 @@ function get() {
 	} else if (nconf.get('singleHostCluster')) {
 		pubsub = new EventEmitter();
 		pubsub.publish = function (event, data) {
-			process.send({
-				action: 'pubsub',
-				event: event,
-				data: data,
-			});
+			if (process.send) {
+				process.send({
+					action: 'pubsub',
+					event: event,
+					data: data,
+				});
+			} else {
+				pubsub.emit(event, data);
+			}
 		};
 		process.on('message', function (message) {
 			if (message && typeof message === 'object' && message.action === 'pubsub') {