Add IScriptInstance.EventsQueued to match EventsProcessed instead of asking callers to lock and directly inspect the EventQueue

OpenSim/Region/ScriptEngine/Interfaces/IScriptInstance.cs

@@ -114,6 +114,11 @@ namespace OpenSim.Region.ScriptEngine.Interfaces
         UUID AssetID { get; }
         Queue EventQueue { get; }
 
+        /// <summary>
+        /// Number of events queued for processing.
+        /// </summary>
+        long EventsQueued { get; }
+
         /// <summary>
         /// Number of events processed by this script instance.
         /// </summary>

OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs

@@ -173,6 +173,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
 
         public Queue EventQueue { get; private set; }
 
+        public long EventsQueued
+        {
+            get 
+            {
+                lock (EventQueue)
+                    return EventQueue.Count;
+            }   
+        }
+
         public long EventsProcessed { get; private set; }
 
         public int StartParam { get; set; }

OpenSim/Region/ScriptEngine/XEngine/XEngine.cs

@@ -526,10 +526,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
 
             sb.AppendFormat("Script name         : {0}\n", instance.ScriptName);
             sb.AppendFormat("Status              : {0}\n", status);
-
-            lock (eq)
-                sb.AppendFormat("Queued events       : {0}\n", eq.Count);
-
+            sb.AppendFormat("Queued events       : {0}\n", instance.EventsQueued);
             sb.AppendFormat("Processed events    : {0}\n", instance.EventsProcessed);
             sb.AppendFormat("Item UUID           : {0}\n", instance.ItemID);
             sb.AppendFormat("Containing part name: {0}\n", instance.PrimName);