From ff12285e94ddc358c74b0ddd7191a8aa7bfba9f9 Mon Sep 17 00:00:00 2001
From: Nader Toukabri <nader.toukabri@gmail.com>
Date: Fri, 28 Oct 2016 14:23:22 +0100
Subject: [PATCH] add SocketAckEmitter.isRequired()

---
 Source/SocketAckEmitter.swift | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Source/SocketAckEmitter.swift b/Source/SocketAckEmitter.swift
index 6b86460..07fd239 100644
--- a/Source/SocketAckEmitter.swift
+++ b/Source/SocketAckEmitter.swift
@@ -44,6 +44,10 @@ public final class SocketAckEmitter : NSObject {
         
         socket.emitAck(ackNum, with: items)
     }
+        
+    public func isRequired() -> Bool {
+        return ackNum != -1;
+    }
 }
 
 public final class OnAckCallback : NSObject {