Add IScriptInstance.EventsProcessed stat so that we can record this information and display in "show scripts" for debug purposes

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 processed by this script instance.
+        /// </summary>
+        long EventsProcessed { get; }
+
         void ClearQueue();
         int StartParam { get; set; }
 

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

@@ -173,6 +173,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
 
         public Queue EventQueue { get; private set; }
 
+        public long EventsProcessed { get; private set; }
+
         public int StartParam { get; set; }
 
         public TaskInventoryItem ScriptTask { get; private set; }
@@ -808,6 +810,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
                 // script engine to run the next event.
                 lock (EventQueue)
                 {
+                    EventsProcessed++;
+
                     if (EventQueue.Count > 0 && Running && !ShuttingDown)
                     {
                         m_CurrentWorkItem = Engine.QueueEventHandler(this);

OpenSim/Region/ScriptEngine/XEngine/XEngine.cs

@@ -512,6 +512,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             lock (eq)
                 sb.AppendFormat("Queued events       : {0}\n", eq.Count);
 
+            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);
             sb.AppendFormat("Containing part UUID: {0}\n", instance.ObjectID);