Reverting the deletion of files related to texture sending until we figure out exactly what is and isn't needed
John Hurliman
parent
8151190a45
commit
edd393ff30
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@ -163,7 +163,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
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CircuitCode = circuitCode;
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m_udpServer = server;
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m_defaultThrottleRates = rates;
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// Create a token bucket throttle for this client that has the scene token bucket as a parent
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m_throttle = new TokenBucket(parentThrottle, rates.TotalLimit, rates.Total);
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// Create an array of token buckets for this clients different throttle categories
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m_throttleCategories = new TokenBucket[THROTTLE_CATEGORY_COUNT];
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for (int i = 0; i < THROTTLE_CATEGORY_COUNT; i++)
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@ -0,0 +1,302 @@
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/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using System.Threading;
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using log4net;
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using Nini.Config;
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using OpenMetaverse;
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using OpenSim.Framework;
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using OpenSim.Framework.Communications.Cache;
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using OpenSim.Region.Framework.Interfaces;
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using OpenSim.Region.Framework.Scenes;
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using BlockingQueue = OpenSim.Framework.BlockingQueue<OpenSim.Region.Framework.Interfaces.ITextureSender>;
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using OpenSim.Services.Interfaces;
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namespace OpenSim.Region.CoreModules.Agent.TextureDownload
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{
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public class TextureDownloadModule : IRegionModule
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{
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private static readonly ILog m_log
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= LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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/// <summary>
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/// There is one queue for all textures waiting to be sent, regardless of the requesting user.
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/// </summary>
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private readonly BlockingQueue m_queueSenders
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= new BlockingQueue();
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/// <summary>
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/// Each user has their own texture download service.
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/// </summary>
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private readonly Dictionary<UUID, UserTextureDownloadService> m_userTextureServices =
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new Dictionary<UUID, UserTextureDownloadService>();
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private Scene m_scene;
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private List<Scene> m_scenes = new List<Scene>();
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public TextureDownloadModule()
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{
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}
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#region IRegionModule Members
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public void Initialise(Scene scene, IConfigSource config)
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{
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if (m_scene == null)
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{
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//m_log.Debug("Creating Texture download module");
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m_scene = scene;
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//m_thread = new Thread(new ThreadStart(ProcessTextureSenders));
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//m_thread.Name = "ProcessTextureSenderThread";
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//m_thread.IsBackground = true;
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//m_thread.Start();
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//ThreadTracker.Add(m_thread);
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}
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if (!m_scenes.Contains(scene))
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{
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m_scenes.Add(scene);
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m_scene = scene;
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m_scene.EventManager.OnNewClient += NewClient;
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m_scene.EventManager.OnRemovePresence += EventManager_OnRemovePresence;
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}
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}
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public void PostInitialise()
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{
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}
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public void Close()
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{
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}
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public string Name
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{
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get { return "TextureDownloadModule"; }
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}
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public bool IsSharedModule
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{
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get { return false; }
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}
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#endregion
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/// <summary>
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/// Cleanup the texture service related objects for the removed presence.
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/// </summary>
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/// <param name="agentId"> </param>
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private void EventManager_OnRemovePresence(UUID agentId)
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{
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UserTextureDownloadService textureService;
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lock (m_userTextureServices)
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{
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if (m_userTextureServices.TryGetValue(agentId, out textureService))
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{
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textureService.Close();
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//m_log.DebugFormat("[TEXTURE MODULE]: Removing UserTextureServices from {0}", m_scene.RegionInfo.RegionName);
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m_userTextureServices.Remove(agentId);
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}
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}
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}
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public void NewClient(IClientAPI client)
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{
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UserTextureDownloadService textureService;
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lock (m_userTextureServices)
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{
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if (m_userTextureServices.TryGetValue(client.AgentId, out textureService))
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{
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textureService.Close();
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//m_log.DebugFormat("[TEXTURE MODULE]: Removing outdated UserTextureServices from {0}", m_scene.RegionInfo.RegionName);
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m_userTextureServices.Remove(client.AgentId);
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}
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m_userTextureServices.Add(client.AgentId, new UserTextureDownloadService(client, m_scene, m_queueSenders));
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}
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client.OnRequestTexture += TextureRequest;
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}
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/// I'm commenting this out, and replacing it with the implementation below, which
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/// may return a null value. This is necessary for avoiding race conditions
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/// recreating UserTextureServices for clients that have just been closed.
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/// That behavior of always returning a UserTextureServices was causing the
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/// A-B-A problem (mantis #2855).
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///
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///// <summary>
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///// Does this user have a registered texture download service?
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///// </summary>
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///// <param name="userID"></param>
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///// <param name="textureService"></param>
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///// <returns>Always returns true, since a service is created if one does not already exist</returns>
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//private bool TryGetUserTextureService(
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// IClientAPI client, out UserTextureDownloadService textureService)
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//{
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// lock (m_userTextureServices)
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// {
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// if (m_userTextureServices.TryGetValue(client.AgentId, out textureService))
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// {
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// //m_log.DebugFormat("[TEXTURE MODULE]: Found existing UserTextureServices in ", m_scene.RegionInfo.RegionName);
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// return true;
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// }
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// m_log.DebugFormat("[TEXTURE MODULE]: Creating new UserTextureServices in ", m_scene.RegionInfo.RegionName);
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// textureService = new UserTextureDownloadService(client, m_scene, m_queueSenders);
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// m_userTextureServices.Add(client.AgentId, textureService);
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// return true;
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// }
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//}
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/// <summary>
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/// Does this user have a registered texture download service?
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/// </summary>
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/// <param name="userID"></param>
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/// <param name="textureService"></param>
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/// <returns>A UserTextureDownloadService or null in the output parameter, and true or false accordingly.</returns>
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private bool TryGetUserTextureService(IClientAPI client, out UserTextureDownloadService textureService)
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{
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lock (m_userTextureServices)
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{
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if (m_userTextureServices.TryGetValue(client.AgentId, out textureService))
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{
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//m_log.DebugFormat("[TEXTURE MODULE]: Found existing UserTextureServices in ", m_scene.RegionInfo.RegionName);
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return true;
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}
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textureService = null;
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return false;
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}
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}
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/// <summary>
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/// Start the process of requesting a given texture.
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/// </summary>
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/// <param name="sender"> </param>
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/// <param name="e"></param>
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public void TextureRequest(Object sender, TextureRequestArgs e)
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{
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IClientAPI client = (IClientAPI)sender;
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if (e.Priority == 1016001f) // Preview
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{
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if (client.Scene is Scene)
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{
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Scene scene = (Scene)client.Scene;
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CachedUserInfo profile = scene.CommsManager.UserProfileCacheService.GetUserDetails(client.AgentId);
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if (profile == null) // Deny unknown user
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return;
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IInventoryService invService = scene.InventoryService;
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if (invService.GetRootFolder(client.AgentId) == null) // Deny no inventory
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return;
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// Diva 2009-08-13: this test doesn't make any sense to many devs
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//if (profile.UserProfile.GodLevel < 200 && profile.RootFolder.FindAsset(e.RequestedAssetID) == null) // Deny if not owned
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//{
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// m_log.WarnFormat("[TEXTURE]: user {0} doesn't have permissions to texture {1}");
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// return;
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//}
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m_log.Debug("Texture preview");
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}
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}
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UserTextureDownloadService textureService;
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if (TryGetUserTextureService(client, out textureService))
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{
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textureService.HandleTextureRequest(e);
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}
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}
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/// <summary>
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/// Entry point for the thread dedicated to processing the texture queue.
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/// </summary>
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public void ProcessTextureSenders()
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{
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ITextureSender sender = null;
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try
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{
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while (true)
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{
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sender = m_queueSenders.Dequeue();
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if (sender.Cancel)
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{
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TextureSent(sender);
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sender.Cancel = false;
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}
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else
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{
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bool finished = sender.SendTexturePacket();
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if (finished)
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{
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TextureSent(sender);
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}
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else
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{
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m_queueSenders.Enqueue(sender);
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}
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}
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// Make sure that any sender we currently have can get garbage collected
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sender = null;
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//m_log.InfoFormat("[TEXTURE] Texture sender queue size: {0}", m_queueSenders.Count());
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}
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}
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catch (Exception e)
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{
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// TODO: Let users in the sim and those entering it and possibly an external watchdog know what has happened
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m_log.ErrorFormat(
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"[TEXTURE]: Texture send thread terminating with exception. PLEASE REBOOT YOUR SIM - TEXTURES WILL NOT BE AVAILABLE UNTIL YOU DO. Exception is {0}",
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e);
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}
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}
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/// <summary>
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/// Called when the texture has finished sending.
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/// </summary>
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/// <param name="sender"></param>
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private void TextureSent(ITextureSender sender)
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{
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sender.Sending = false;
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//m_log.DebugFormat("[TEXTURE]: Removing download stat for {0}", sender.assetID);
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m_scene.StatsReporter.AddPendingDownloads(-1);
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}
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}
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}
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@ -0,0 +1,87 @@
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/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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||||
* * Redistributions of source code must retain the above copyright
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||||
* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
|
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using OpenMetaverse;
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using OpenSim.Framework;
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using OpenSim.Region.Framework.Interfaces;
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namespace OpenSim.Region.CoreModules.Agent.TextureDownload
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{
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/// <summary>
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/// Sends a 'texture not found' packet back to the client
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/// </summary>
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public class TextureNotFoundSender : ITextureSender
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{
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// private static readonly log4net.ILog m_log
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// = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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// private IClientAPI m_client;
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// private UUID m_textureId;
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public TextureNotFoundSender(IClientAPI client, UUID textureID)
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{
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//m_client = client;
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//m_textureId = textureID;
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}
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#region ITextureSender Members
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public bool Sending
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{
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get { return false; }
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set { }
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}
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public bool Cancel
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{
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get { return false; }
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set { }
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}
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// See ITextureSender
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public void UpdateRequest(int discardLevel, uint packetNumber)
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{
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// No need to implement since priority changes don't affect this operation
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}
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// See ITextureSender
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public bool SendTexturePacket()
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{
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// m_log.DebugFormat(
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// "[TEXTURE NOT FOUND SENDER]: Informing the client that texture {0} cannot be found",
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// m_textureId);
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// XXX Temporarily disabling as this appears to be causing client crashes on at least
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// 1.19.0(5) of the Linden Second Life client.
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// m_client.SendImageNotFound(m_textureId);
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return true;
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}
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#endregion
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}
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}
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@ -0,0 +1,265 @@
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/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
|
||||
*
|
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* 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 OpenSimulator Project nor the
|
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* 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
|
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* 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.
|
||||
*/
|
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using log4net;
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using OpenMetaverse;
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using OpenSim.Framework;
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using OpenSim.Framework.Communications.Limit;
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using OpenSim.Framework.Statistics;
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using OpenSim.Region.Framework.Interfaces;
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using OpenSim.Region.Framework.Scenes;
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namespace OpenSim.Region.CoreModules.Agent.TextureDownload
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{
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/// <summary>
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/// This module sets up texture senders in response to client texture requests, and places them on a
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/// processing queue once those senders have the appropriate data (i.e. a texture retrieved from the
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/// asset cache).
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/// </summary>
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public class UserTextureDownloadService
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{
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// private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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/// <summary>
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/// True if the service has been closed, probably because a user with texture requests still queued
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/// logged out.
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/// </summary>
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private bool closed;
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/// <summary>
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/// We will allow the client to request the same texture n times before dropping further requests
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///
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/// This number includes repeated requests for the same texture at different resolutions (which we don't
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/// currently handle properly as far as I know). However, this situation should be handled in a more
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/// sophisticated way.
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/// </summary>
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// private static readonly int MAX_ALLOWED_TEXTURE_REQUESTS = 5;
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/// <summary>
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/// XXX Also going to limit requests for found textures.
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/// </summary>
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// private readonly IRequestLimitStrategy<UUID> foundTextureLimitStrategy
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// = new RepeatLimitStrategy<UUID>(MAX_ALLOWED_TEXTURE_REQUESTS);
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// private readonly IClientAPI m_client;
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private readonly Scene m_scene;
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/// <summary>
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/// Texture Senders are placed in this queue once they have received their texture from the asset
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/// cache. Another module actually invokes the send.
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/// </summary>
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// private readonly OpenSim.Framework.BlockingQueue<ITextureSender> m_sharedSendersQueue;
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/// <summary>
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/// Holds texture senders before they have received the appropriate texture from the asset cache.
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/// </summary>
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private readonly Dictionary<UUID, TextureSender.TextureSender> m_textureSenders = new Dictionary<UUID, TextureSender.TextureSender>();
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|
||||
/// <summary>
|
||||
/// We're going to limit requests for the same missing texture.
|
||||
/// XXX This is really a temporary solution to deal with the situation where a client continually requests
|
||||
/// the same missing textures
|
||||
/// </summary>
|
||||
// private readonly IRequestLimitStrategy<UUID> missingTextureLimitStrategy
|
||||
// = new RepeatLimitStrategy<UUID>(MAX_ALLOWED_TEXTURE_REQUESTS);
|
||||
|
||||
public UserTextureDownloadService(
|
||||
IClientAPI client, Scene scene, OpenSim.Framework.BlockingQueue<ITextureSender> sharedQueue)
|
||||
{
|
||||
// m_client = client;
|
||||
m_scene = scene;
|
||||
// m_sharedSendersQueue = sharedQueue;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Handle a texture request. This involves creating a texture sender and placing it on the
|
||||
/// previously passed in shared queue.
|
||||
/// </summary>
|
||||
/// <param name="e"></param>
|
||||
public void HandleTextureRequest(TextureRequestArgs e)
|
||||
{
|
||||
|
||||
//TextureSender.TextureSender textureSender;
|
||||
|
||||
//TODO: should be working out the data size/ number of packets to be sent for each discard level
|
||||
//if ((e.DiscardLevel >= 0) || (e.Priority != 0))
|
||||
//{
|
||||
//lock (m_textureSenders)
|
||||
//{
|
||||
//if (m_textureSenders.TryGetValue(e.RequestedAssetID, out textureSender))
|
||||
//{
|
||||
// If we've received new non UUID information for this request and it hasn't dispatched
|
||||
// yet, then update the request accordingly.
|
||||
// textureSender.UpdateRequest(e.DiscardLevel, e.PacketNumber);
|
||||
//}
|
||||
//else
|
||||
//{
|
||||
// m_log.DebugFormat("[TEXTURE]: Received a request for texture {0}", e.RequestedAssetID);
|
||||
|
||||
//if (!foundTextureLimitStrategy.AllowRequest(e.RequestedAssetID))
|
||||
//{
|
||||
// m_log.DebugFormat(
|
||||
// "[TEXTURE]: Refusing request for {0} from client {1}",
|
||||
// e.RequestedAssetID, m_client.AgentId);
|
||||
|
||||
//return;
|
||||
//}
|
||||
//else if (!missingTextureLimitStrategy.AllowRequest(e.RequestedAssetID))
|
||||
//{
|
||||
// if (missingTextureLimitStrategy.IsFirstRefusal(e.RequestedAssetID))
|
||||
// {
|
||||
// if (StatsManager.SimExtraStats != null)
|
||||
// StatsManager.SimExtraStats.AddBlockedMissingTextureRequest();
|
||||
|
||||
// Commenting out this message for now as it causes too much noise with other
|
||||
// debug messages.
|
||||
// m_log.DebugFormat(
|
||||
// "[TEXTURE]: Dropping requests for notified missing texture {0} for client {1} since we have received more than {2} requests",
|
||||
// e.RequestedAssetID, m_client.AgentId, MAX_ALLOWED_TEXTURE_REQUESTS);
|
||||
// }
|
||||
|
||||
// return;
|
||||
//}
|
||||
|
||||
m_scene.StatsReporter.AddPendingDownloads(1);
|
||||
|
||||
//TextureSender.TextureSender requestHandler = new TextureSender.TextureSender(m_client, e.DiscardLevel, e.PacketNumber);
|
||||
//m_textureSenders.Add(e.RequestedAssetID, null);
|
||||
|
||||
m_scene.AssetService.Get(e.RequestedAssetID.ToString(), this, TextureReceived);
|
||||
|
||||
|
||||
}
|
||||
|
||||
protected void TextureReceived(string id, Object sender, AssetBase asset)
|
||||
{
|
||||
if (asset != null)
|
||||
TextureCallback(asset.FullID, asset);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// The callback for the asset cache when a texture has been retrieved. This method queues the
|
||||
/// texture sender for processing.
|
||||
/// </summary>
|
||||
/// <param name="textureID"></param>
|
||||
/// <param name="texture"></param>
|
||||
public void TextureCallback(UUID textureID, AssetBase texture)
|
||||
{
|
||||
//m_log.DebugFormat("[USER TEXTURE DOWNLOAD SERVICE]: Calling TextureCallback with {0}, texture == null is {1}", textureID, (texture == null ? true : false));
|
||||
|
||||
// There may still be texture requests pending for a logged out client
|
||||
if (closed)
|
||||
return;
|
||||
|
||||
/*
|
||||
lock (m_textureSenders)
|
||||
{
|
||||
TextureSender.TextureSender textureSender;
|
||||
if (m_textureSenders.TryGetValue(textureID, out textureSender))
|
||||
{
|
||||
// XXX It may be perfectly valid for a texture to have no data... but if we pass
|
||||
// this on to the TextureSender it will blow up, so just discard for now.
|
||||
// Needs investigation.
|
||||
if (texture == null || texture.Data == null)
|
||||
{
|
||||
if (!missingTextureLimitStrategy.IsMonitoringRequests(textureID))
|
||||
{
|
||||
missingTextureLimitStrategy.MonitorRequests(textureID);
|
||||
|
||||
// m_log.DebugFormat(
|
||||
// "[TEXTURE]: Queueing first TextureNotFoundSender for {0}, client {1}",
|
||||
// textureID, m_client.AgentId);
|
||||
}
|
||||
|
||||
ITextureSender textureNotFoundSender = new TextureNotFoundSender(m_client, textureID);
|
||||
EnqueueTextureSender(textureNotFoundSender);
|
||||
}
|
||||
else
|
||||
{
|
||||
if (!textureSender.ImageLoaded)
|
||||
{
|
||||
textureSender.TextureReceived(texture);
|
||||
EnqueueTextureSender(textureSender);
|
||||
|
||||
foundTextureLimitStrategy.MonitorRequests(textureID);
|
||||
}
|
||||
}
|
||||
|
||||
//m_log.InfoFormat("[TEXTURE] Removing texture sender with uuid {0}", textureID);
|
||||
m_textureSenders.Remove(textureID);
|
||||
//m_log.InfoFormat("[TEXTURE] Current texture senders in dictionary: {0}", m_textureSenders.Count);
|
||||
}
|
||||
else
|
||||
{
|
||||
m_log.WarnFormat(
|
||||
"[TEXTURE]: Got a texture uuid {0} with no sender object to handle it, this shouldn't happen",
|
||||
textureID);
|
||||
}
|
||||
}
|
||||
*/
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Place a ready texture sender on the processing queue.
|
||||
/// </summary>
|
||||
/// <param name="textureSender"></param>
|
||||
// private void EnqueueTextureSender(ITextureSender textureSender)
|
||||
// {
|
||||
// textureSender.Cancel = false;
|
||||
// textureSender.Sending = true;
|
||||
//
|
||||
// if (!m_sharedSendersQueue.Contains(textureSender))
|
||||
// {
|
||||
// m_sharedSendersQueue.Enqueue(textureSender);
|
||||
// }
|
||||
// }
|
||||
|
||||
/// <summary>
|
||||
/// Close this module.
|
||||
/// </summary>
|
||||
internal void Close()
|
||||
{
|
||||
closed = true;
|
||||
|
||||
lock (m_textureSenders)
|
||||
{
|
||||
foreach (TextureSender.TextureSender textureSender in m_textureSenders.Values)
|
||||
{
|
||||
textureSender.Cancel = true;
|
||||
}
|
||||
|
||||
m_textureSenders.Clear();
|
||||
}
|
||||
|
||||
// XXX: It might be possible to also remove pending texture requests from the asset cache queues,
|
||||
// though this might also be more trouble than it's worth.
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,212 @@
|
|||
/*
|
||||
* 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 OpenSimulator 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;
|
||||
using System.Reflection;
|
||||
using log4net;
|
||||
using OpenSim.Framework;
|
||||
using OpenSim.Region.Framework.Interfaces;
|
||||
|
||||
namespace OpenSim.Region.CoreModules.Agent.TextureSender
|
||||
{
|
||||
/// <summary>
|
||||
/// A TextureSender handles the process of receiving a texture requested by the client from the
|
||||
/// AssetCache, and then sending that texture back to the client.
|
||||
/// </summary>
|
||||
public class TextureSender : ITextureSender
|
||||
{
|
||||
private static readonly ILog m_log
|
||||
= LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
|
||||
|
||||
/// <summary>
|
||||
/// Records the number of times texture send has been called.
|
||||
/// </summary>
|
||||
public int counter = 0;
|
||||
|
||||
public bool ImageLoaded = false;
|
||||
|
||||
/// <summary>
|
||||
/// Holds the texture asset to send.
|
||||
/// </summary>
|
||||
private AssetBase m_asset;
|
||||
|
||||
//public UUID assetID { get { return m_asset.FullID; } }
|
||||
|
||||
// private bool m_cancel = false;
|
||||
|
||||
// See ITextureSender
|
||||
|
||||
// private bool m_sending = false;
|
||||
|
||||
/// <summary>
|
||||
/// This is actually the number of extra packets required to send the texture data! We always assume
|
||||
/// at least one is required.
|
||||
/// </summary>
|
||||
private int NumPackets = 0;
|
||||
|
||||
/// <summary>
|
||||
/// Holds the packet number to send next. In this case, each packet is 1000 bytes long and starts
|
||||
/// at the 600th byte (0th indexed).
|
||||
/// </summary>
|
||||
private int PacketCounter = 0;
|
||||
|
||||
private int RequestedDiscardLevel = -1;
|
||||
private IClientAPI RequestUser;
|
||||
private uint StartPacketNumber = 0;
|
||||
|
||||
public TextureSender(IClientAPI client, int discardLevel, uint packetNumber)
|
||||
{
|
||||
RequestUser = client;
|
||||
RequestedDiscardLevel = discardLevel;
|
||||
StartPacketNumber = packetNumber;
|
||||
}
|
||||
|
||||
#region ITextureSender Members
|
||||
|
||||
public bool Cancel
|
||||
{
|
||||
get { return false; }
|
||||
set
|
||||
{
|
||||
// m_cancel = value;
|
||||
}
|
||||
}
|
||||
|
||||
public bool Sending
|
||||
{
|
||||
get { return false; }
|
||||
set
|
||||
{
|
||||
// m_sending = value;
|
||||
}
|
||||
}
|
||||
|
||||
// See ITextureSender
|
||||
public void UpdateRequest(int discardLevel, uint packetNumber)
|
||||
{
|
||||
RequestedDiscardLevel = discardLevel;
|
||||
StartPacketNumber = packetNumber;
|
||||
PacketCounter = (int)StartPacketNumber;
|
||||
}
|
||||
|
||||
// See ITextureSender
|
||||
public bool SendTexturePacket()
|
||||
{
|
||||
//m_log.DebugFormat("[TEXTURE SENDER]: Sending packet for {0}", m_asset.FullID);
|
||||
|
||||
SendPacket();
|
||||
counter++;
|
||||
if ((NumPackets == 0) || (RequestedDiscardLevel == -1) || (PacketCounter > NumPackets) ||
|
||||
((RequestedDiscardLevel > 0) && (counter > 50 + (NumPackets / (RequestedDiscardLevel + 1)))))
|
||||
{
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
/// <summary>
|
||||
/// Load up the texture data to send.
|
||||
/// </summary>
|
||||
/// <param name="asset"></param>
|
||||
public void TextureReceived(AssetBase asset)
|
||||
{
|
||||
m_asset = asset;
|
||||
NumPackets = CalculateNumPackets(asset.Data.Length);
|
||||
PacketCounter = (int)StartPacketNumber;
|
||||
ImageLoaded = true;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Sends a texture packet to the client.
|
||||
/// </summary>
|
||||
private void SendPacket()
|
||||
{
|
||||
if (PacketCounter <= NumPackets)
|
||||
{
|
||||
if (PacketCounter == 0)
|
||||
{
|
||||
if (NumPackets == 0)
|
||||
{
|
||||
RequestUser.SendImageFirstPart(1, m_asset.FullID, (uint)m_asset.Data.Length, m_asset.Data, 2);
|
||||
PacketCounter++;
|
||||
}
|
||||
else
|
||||
{
|
||||
byte[] ImageData1 = new byte[600];
|
||||
Array.Copy(m_asset.Data, 0, ImageData1, 0, 600);
|
||||
|
||||
RequestUser.SendImageFirstPart(
|
||||
(ushort)(NumPackets), m_asset.FullID, (uint)m_asset.Data.Length, ImageData1, 2);
|
||||
PacketCounter++;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
int size = m_asset.Data.Length - 600 - (1000 * (PacketCounter - 1));
|
||||
if (size > 1000) size = 1000;
|
||||
byte[] imageData = new byte[size];
|
||||
try
|
||||
{
|
||||
Array.Copy(m_asset.Data, 600 + (1000 * (PacketCounter - 1)), imageData, 0, size);
|
||||
}
|
||||
catch (ArgumentOutOfRangeException)
|
||||
{
|
||||
m_log.Error("[TEXTURE SENDER]: Unable to separate texture into multiple packets: Array bounds failure on asset:" +
|
||||
m_asset.ID);
|
||||
return;
|
||||
}
|
||||
|
||||
RequestUser.SendImageNextPart((ushort)PacketCounter, m_asset.FullID, imageData);
|
||||
PacketCounter++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Calculate the number of packets that will be required to send the texture loaded into this sender
|
||||
/// This is actually the number of 1000 byte packets not including an initial 600 byte packet...
|
||||
/// </summary>
|
||||
/// <param name="length"></param>
|
||||
/// <returns></returns>
|
||||
private int CalculateNumPackets(int length)
|
||||
{
|
||||
int numPackets = 0;
|
||||
|
||||
if (length > 600)
|
||||
{
|
||||
//over 600 bytes so split up file
|
||||
int restData = (length - 600);
|
||||
int restPackets = ((restData + 999) / 1000);
|
||||
numPackets = restPackets;
|
||||
}
|
||||
|
||||
return numPackets;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
/*
|
||||
* 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 OpenSimulator 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.
|
||||
*/
|
||||
|
||||
namespace OpenSim.Region.Framework.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();
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue