* Start sending "ImageNotFound" packet back to the client if we can't find an image

* This might stop some client's constant requests for unfound textures, which is a candidate for the memory leak
* If a texture is not found then the "Image not found" texture will now be displayed clientside
* If it works, this should resolve mantis 676
* Non texture image requests do not receive this packet yet
* This will require a prebuild

1 files changed, 61 insertions, 0 deletions

diff --git a/OpenSim/Region/Environment/Interfaces/ITextureSender.cs b/OpenSim/Region/Environment/Interfaces/ITextureSender.cs
new file mode 100644
index 0000000..6ea08d0
--- /dev/null
+++ b/OpenSim/Region/Environment/Interfaces/ITextureSender.cs
@@ -0,0 +1,61 @@
+/*
+* Copyright (c) Contributors, http://opensimulator.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+
+using System;
+
+namespace OpenSim.Region.Environment.Interfaces
+{
+    /// <summary>
+    /// Interface for an object which can send texture information to a client
+    /// </summary>
+    public interface ITextureSender
+    {        
+        /// <summary>
+        /// Are we in the process of sending the texture?
+        /// </summary>
+        bool Sending { get; set; }
+        
+        /// <summary>
+        /// Has the texture send been cancelled?
+        /// </summary>
+        bool Cancel { get; set; }
+        
+        /// <summary>
+        /// Update the non data properties of a texture request
+        /// </summary>
+        /// <param name="discardLevel"></param>
+        /// <param name="packetNumber"></param>
+        void UpdateRequest(int discardLevel, uint packetNumber);
+
+        /// <summary>
+        /// Send a texture packet to the client.
+        /// </summary>
+        /// <returns>True if the last packet has been sent, false otherwise.</returns>
+        bool SendTexturePacket();     
+    }
+}