From 58c25fa9c4a43ea162322b9a539c1cc19e0ea6dc Mon Sep 17 00:00:00 2001
From: Mathew Heard <splitice@users.noreply.github.com>
Date: Wed, 13 Oct 2021 01:04:11 +1100
Subject: [PATCH] deferred timeout method

---
 index.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/index.js b/index.js
index 31db840..557c902 100644
--- a/index.js
+++ b/index.js
@@ -203,6 +203,21 @@ Q.timeout = function (promise, ms, message = undefined){
 	return deferred.promise
 }
 
+Q.deferredTimeout = function(deferred, ms, symbol = undefined){
+	if(!symbol) {
+		symbol = new Error(`Timed out after ${ms} ms`)
+	}
+	const timer = setTimeout(()=>{
+		deferred.reject(symbol)
+	}, ms)
+
+	deferred.catch(()=>{}).then(()=>{
+		clearTimeout(timer)
+	})
+
+	return deferred.promise
+}
+
 Q.ninvoke = function(object, method, ...args){
 	return Q.nfcall(object[method].bind(object), ...args)
 }