avoid a data copy

OpenSim/Framework/Servers/HttpServer/OSHttpResponse.cs

@@ -195,6 +195,42 @@ namespace OpenSim.Framework.Servers.HttpServer
             }
         }
 
+        public byte[] RawBuffer
+        {
+            get
+            {
+                return _httpResponse.RawBuffer;
+            }
+            set
+            {
+                _httpResponse.RawBuffer = value;
+            }
+        }
+
+        public int RawBufferStart
+        {
+            get
+            {
+                return _httpResponse.RawBufferStart;
+            }
+            set
+            {
+                _httpResponse.RawBufferStart = value;
+            }
+        }
+
+        public int RawBufferLen
+        {
+            get
+            {
+                return _httpResponse.RawBufferLen;
+            }
+            set
+            {
+                _httpResponse.RawBufferLen = value;
+            }
+        }
+
         /// <summary>
         /// Set a redirct location.
         /// </summary>

OpenSim/Framework/Servers/HttpServer/PollServiceHttpRequest.cs

@@ -206,11 +206,17 @@ namespace OpenSim.Framework.Servers.HttpServer
             try
             {
                 if(rangeLen > 0)
-                    response.OutputStream.Write(buffer, rangeStart, rangeLen);
+                {
+                    response.RawBufferStart = rangeStart;
+                    response.RawBufferLen = rangeLen;
+                    response.RawBuffer = buffer;
+                    //response.OutputStream.Write(buffer, rangeStart, rangeLen);
+                }
 
                 buffer = null;
 
                 response.Send();
+                response.RawBuffer = null;
             }
             catch (Exception ex)
             {