From 639b35e7ef349bc7fe02542663263781dd677d62 Mon Sep 17 00:00:00 2001
From: kiritow <1362050620@qq.com>
Date: Mon, 23 Oct 2017 18:59:47 +0800
Subject: [PATCH] Update Event Library

---
 libevent.lua | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/libevent.lua b/libevent.lua
index 628e90e..ff2993a 100644
--- a/libevent.lua
+++ b/libevent.lua
@@ -1,9 +1,24 @@
+require("checkarg")
 local event=require("event")
 
-function AddEventListener(EventString,CallbackFunction)
-    return event.listen(EventString,CallbackFunction)
+function AddEventListener(EventName,CallbackFunction)
+    checkstring(EventName)
+    checkfunction(CallbackFunction)
+    return event.listen(EventName,CallbackFunction)
 end
 
 function RemoveEventListener(ListenerID)
+    checknumber(ListenerID)
     return event.ignore(event.handlers[ListenerID].key,event.handlers[ListenerID].callback)
+end
+
+function WaitEvent(EventName)
+    checkstring(EventName)
+    return event.pull(EventName)
+end
+
+function WaitEventFor(EventName,TimeOut)
+    checkstring(EventName)
+    checknumber(TimeOut)
+    return event.pull(TimeOut,EventName)
 end
\ No newline at end of file