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Libraries/Esiur/Core/InvocationContext.cs

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+using Esiur.Protocol;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Esiur.Core
+{
+    public class InvocationContext
+    {
+        private uint CallbackId;
+
+        internal bool Ended;
+
+        public void Chunk(object value)
+        {
+            if (Ended)
+                throw new Exception("Execution has ended.");
+
+            Connection.SendChunk(CallbackId, value);
+        }
+
+        public void Progress(uint value, uint max) {
+
+            if (Ended)
+                throw new Exception("Execution has ended.");
+
+            Connection.SendProgress(CallbackId, value, max);
+        }
+
+        public void Warning(byte level, string message)
+        {
+
+            if (Ended)
+                throw new Exception("Execution has ended.");
+
+            Connection.SendWarning(CallbackId, level, message);
+        }
+
+        public EpConnection Connection { get; internal set; }
+
+
+        internal InvocationContext(EpConnection connection, uint callbackId)
+        {
+            Connection = connection;
+            CallbackId = callbackId;
+
+        }
+    }
+}