Deleted the AssetDownload module (and directory), as this module/code hasn't been used for a few thousand revisions now. And the code for sending assets has long since been moved to the LLClientView where it belongs.
MW
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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 OpenSim 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.Collections.Generic;
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using OpenMetaverse;
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using OpenMetaverse.Packets;
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using Nini.Config;
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using OpenSim.Framework;
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using OpenSim.Region.Environment.Interfaces;
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using OpenSim.Region.Environment.Scenes;
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namespace OpenSim.Region.Environment.Modules.Agent.AssetDownload
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{
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public class AssetDownloadModule : IRegionModule
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{
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/// <summary>
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/// Asset requests with data which are ready to be sent back to requesters. This includes textures.
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/// </summary>
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private List<AssetRequest> AssetRequests;
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private Scene m_scene;
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private Dictionary<UUID, Scene> RegisteredScenes = new Dictionary<UUID, Scene>();
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///
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/// Assets requests (for each user) which are waiting for asset server data. This includes texture requests
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/// </summary>
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private Dictionary<UUID, Dictionary<UUID, AssetRequest>> RequestedAssets;
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public AssetDownloadModule()
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{
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RequestedAssets = new Dictionary<UUID, Dictionary<UUID, AssetRequest>>();
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AssetRequests = new List<AssetRequest>();
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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 (!RegisteredScenes.ContainsKey(scene.RegionInfo.RegionID))
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{
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RegisteredScenes.Add(scene.RegionInfo.RegionID, scene);
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// scene.EventManager.OnNewClient += NewClient;
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}
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if (m_scene == null)
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{
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m_scene = scene;
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// m_thread = new Thread(new ThreadStart(RunAssetQueue));
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// m_thread.Name = "AssetDownloadQueueThread";
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// m_thread.IsBackground = true;
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// m_thread.Start();
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// OpenSim.Framework.ThreadTracker.Add(m_thread);
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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 "AssetDownloadModule"; }
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}
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public bool IsSharedModule
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{
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get { return true; }
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}
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#endregion
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public void NewClient(IClientAPI client)
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{
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// client.OnRequestAsset += AddAssetRequest;
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}
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/// <summary>
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/// Make an asset request the result of which will be packeted up and sent directly back to the client.
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/// </summary>
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/// <param name="userInfo"></param>
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/// <param name="transferRequest"></param>
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public void AddAssetRequest(IClientAPI userInfo, TransferRequestPacket transferRequest)
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{
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UUID requestID = UUID.Zero;
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byte source = 2;
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if (transferRequest.TransferInfo.SourceType == 2)
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{
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//direct asset request
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requestID = new UUID(transferRequest.TransferInfo.Params, 0);
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}
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else if (transferRequest.TransferInfo.SourceType == 3)
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{
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//inventory asset request
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requestID = new UUID(transferRequest.TransferInfo.Params, 80);
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source = 3;
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//Console.WriteLine("asset request " + requestID);
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}
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//not found asset
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// so request from asset server
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Dictionary<UUID, AssetRequest> userRequests = null;
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if (RequestedAssets.TryGetValue(userInfo.AgentId, out userRequests))
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{
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if (!userRequests.ContainsKey(requestID))
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{
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AssetRequest request = new AssetRequest();
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request.RequestUser = userInfo;
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request.RequestAssetID = requestID;
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request.TransferRequestID = transferRequest.TransferInfo.TransferID;
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request.AssetRequestSource = source;
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request.Params = transferRequest.TransferInfo.Params;
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userRequests[requestID] = request;
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m_scene.AssetCache.GetAsset(requestID, AssetCallback, false);
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}
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}
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else
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{
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userRequests = new Dictionary<UUID, AssetRequest>();
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AssetRequest request = new AssetRequest();
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request.RequestUser = userInfo;
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request.RequestAssetID = requestID;
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request.TransferRequestID = transferRequest.TransferInfo.TransferID;
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request.AssetRequestSource = source;
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request.Params = transferRequest.TransferInfo.Params;
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userRequests.Add(requestID, request);
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RequestedAssets[userInfo.AgentId] = userRequests;
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m_scene.AssetCache.GetAsset(requestID, AssetCallback, false);
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}
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}
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public void AssetCallback(UUID assetID, AssetBase asset)
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{
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if (asset != null)
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{
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foreach (Dictionary<UUID, AssetRequest> userRequests in RequestedAssets.Values)
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{
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if (userRequests.ContainsKey(assetID))
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{
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AssetRequest req = userRequests[assetID];
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if (req != null)
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{
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req.AssetInf = asset;
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req.NumPackets = CalculateNumPackets(asset.Data);
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userRequests.Remove(assetID);
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AssetRequests.Add(req);
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}
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}
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}
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}
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}
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/// <summary>
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/// Calculate the number of packets required to send the asset to the client.
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/// </summary>
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/// <param name="data"></param>
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/// <returns></returns>
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private int CalculateNumPackets(byte[] data)
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{
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const uint m_maxPacketSize = 600;
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int numPackets = 1;
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if (data.LongLength > m_maxPacketSize)
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{
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// over max number of bytes so split up file
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long restData = data.LongLength - m_maxPacketSize;
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int restPackets = (int) ((restData + m_maxPacketSize - 1) / m_maxPacketSize);
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numPackets += restPackets;
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}
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return numPackets;
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}
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#region Nested type: AssetRequest
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public class AssetRequest
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{
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public AssetBase AssetInf;
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public byte AssetRequestSource = 2;
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public long DataPointer = 0;
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public int DiscardLevel = -1;
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public AssetBase ImageInfo;
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public bool IsTextureRequest;
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public int NumPackets = 0;
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public int PacketCounter = 0;
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public byte[] Params = null;
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public UUID RequestAssetID;
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public IClientAPI RequestUser;
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public UUID TransferRequestID;
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//public bool AssetInCache;
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//public int TimeRequested;
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public AssetRequest()
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{
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}
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}
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#endregion
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}
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}
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