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* Trying to address TextureSender issues 

* The BlockingQueue exposes Contains so we can make sure we don't add a TextureSender to the queue if there's already one present
* introduced some TryGetValue and various code convention stuff
afrisby
lbsa71 2008-01-02 09:07:11 +00:00
parent e678056e13
commit 4b4ee98070
6 changed files with 91 additions and 78 deletions
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25
OpenSim/Framework/BlockingQueue.cs
View File

@ -32,27 +32,34 @@ namespace OpenSim.Framework
{
public class BlockingQueue<T>
{
private Queue<T> _queue = new Queue<T>();
private object _queueSync = new object();
private readonly Queue<T> m_queue = new Queue<T>();
private readonly object m_queueSync = new object();
public void Enqueue(T value)
{
lock (_queueSync)
lock (m_queueSync)
{
_queue.Enqueue(value);
Monitor.Pulse(_queueSync);
m_queue.Enqueue(value);
Monitor.Pulse(m_queueSync);
}
}
public T Dequeue()
{
lock (_queueSync)
lock (m_queueSync)
{
if (_queue.Count < 1)
Monitor.Wait(_queueSync);
if (m_queue.Count < 1)
{
Monitor.Wait(m_queueSync);
}
return _queue.Dequeue();
return m_queue.Dequeue();
}
}
public bool Contains(T item)
{
return m_queue.Contains(item);
}
}
}

6
OpenSim/Framework/Communications/Cache/AssetCache.cs
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@ -56,10 +56,10 @@ namespace OpenSim.Framework.Communications.Cache
public Dictionary<LLUUID, AssetRequestsList> RequestLists = new Dictionary<LLUUID, AssetRequestsList>();
private IAssetServer m_assetServer;
private readonly IAssetServer m_assetServer;
private Thread m_assetCacheThread;
private LogBase m_log;
private readonly Thread m_assetCacheThread;
private readonly LogBase m_log;
/// <summary>
///

38
OpenSim/Framework/Communications/Cache/AssetServerBase.cs
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@ -37,11 +37,11 @@ namespace OpenSim.Framework.Communications.Cache
{
public abstract class AssetServerBase : IAssetServer
{
protected IAssetReceiver _receiver;
protected BlockingQueue<AssetRequest> _assetRequests;
protected Thread _localAssetServerThread;
protected IAssetProvider m_assetProviderPlugin;
protected object syncLock = new object();
protected IAssetReceiver m_receiver;
protected BlockingQueue<AssetRequest> m_assetRequests;
protected Thread m_localAssetServerThread;
protected IAssetProvider m_assetProvider;
protected object m_syncLock = new object();
// Temporarily hardcoded - should be a plugin
protected IAssetLoader assetLoader = new AssetLoaderFileSystem();
@ -71,14 +71,14 @@ namespace OpenSim.Framework.Communications.Cache
MainLog.Instance.Verbose(
"ASSET", "Asset {0} received from asset server", req.AssetID);
_receiver.AssetReceived(asset, req.IsTexture);
m_receiver.AssetReceived(asset, req.IsTexture);
}
else
{
MainLog.Instance.Error(
"ASSET", "Asset {0} not found by asset server", req.AssetID);
_receiver.AssetNotFound(req.AssetID);
m_receiver.AssetNotFound(req.AssetID);
}
}
@ -95,11 +95,11 @@ namespace OpenSim.Framework.Communications.Cache
public AssetServerBase()
{
MainLog.Instance.Verbose("ASSETSERVER", "Starting asset storage system");
_assetRequests = new BlockingQueue<AssetRequest>();
m_assetRequests = new BlockingQueue<AssetRequest>();
_localAssetServerThread = new Thread(RunRequests);
_localAssetServerThread.IsBackground = true;
_localAssetServerThread.Start();
m_localAssetServerThread = new Thread(RunRequests);
m_localAssetServerThread.IsBackground = true;
m_localAssetServerThread.Start();
}
private void RunRequests()
@ -108,7 +108,7 @@ namespace OpenSim.Framework.Communications.Cache
{
try
{
AssetRequest req = _assetRequests.Dequeue();
AssetRequest req = m_assetRequests.Dequeue();
ProcessRequest(req);
}
@ -121,7 +121,7 @@ namespace OpenSim.Framework.Communications.Cache
public void SetReceiver(IAssetReceiver receiver)
{
_receiver = receiver;
m_receiver = receiver;
}
public void RequestAsset(LLUUID assetID, bool isTexture)
@ -129,23 +129,23 @@ namespace OpenSim.Framework.Communications.Cache
AssetRequest req = new AssetRequest();
req.AssetID = assetID;
req.IsTexture = isTexture;
_assetRequests.Enqueue(req);
m_assetRequests.Enqueue(req);
MainLog.Instance.Verbose("ASSET", "Added {0} to request queue", assetID);
}
public virtual void UpdateAsset(AssetBase asset)
{
lock (syncLock)
lock (m_syncLock)
{
m_assetProviderPlugin.UpdateAsset(asset);
m_assetProviderPlugin.CommitAssets();
m_assetProvider.UpdateAsset(asset);
m_assetProvider.CommitAssets();
}
}
public void StoreAndCommitAsset(AssetBase asset)
{
lock (syncLock)
lock (m_syncLock)
{
StoreAsset(asset);
CommitAssets();
@ -154,7 +154,7 @@ namespace OpenSim.Framework.Communications.Cache
public virtual void Close()
{
_localAssetServerThread.Abort();
m_localAssetServerThread.Abort();
}
public void SetServerInfo(string ServerUrl, string ServerKey)

20
OpenSim/Framework/Communications/Cache/SQLAssetServer.cs
View File

@ -40,7 +40,7 @@ namespace OpenSim.Framework.Communications.Cache
public SQLAssetServer(IAssetProvider assetProvider)
{
m_assetProviderPlugin = assetProvider;
m_assetProvider = assetProvider;
}
public void AddPlugin(string FileName)
@ -58,12 +58,12 @@ namespace OpenSim.Framework.Communications.Cache
{
IAssetProvider plug =
(IAssetProvider) Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));
m_assetProviderPlugin = plug;
m_assetProviderPlugin.Initialise();
m_assetProvider = plug;
m_assetProvider.Initialise();
MainLog.Instance.Verbose("AssetStorage",
"Added " + m_assetProviderPlugin.Name + " " +
m_assetProviderPlugin.Version);
"Added " + m_assetProvider.Name + " " +
m_assetProvider.Version);
}
}
}
@ -74,15 +74,15 @@ namespace OpenSim.Framework.Communications.Cache
{
base.Close();
m_assetProviderPlugin.CommitAssets();
m_assetProvider.CommitAssets();
}
protected override AssetBase GetAsset(AssetRequest req)
{
AssetBase asset;
lock (syncLock)
lock (m_syncLock)
{
asset = m_assetProviderPlugin.FetchAsset(req.AssetID);
asset = m_assetProvider.FetchAsset(req.AssetID);
}
return asset;
@ -90,12 +90,12 @@ namespace OpenSim.Framework.Communications.Cache
protected override void StoreAsset(AssetBase asset)
{
m_assetProviderPlugin.CreateAsset(asset);
m_assetProvider.CreateAsset(asset);
}
protected override void CommitAssets()
{
m_assetProviderPlugin.CommitAssets();
m_assetProvider.CommitAssets();
}
}
}

5
OpenSim/Region/ClientStack/ClientView.cs
View File

@ -2973,7 +2973,6 @@ namespace OpenSim.Region.ClientStack
//Console.WriteLine("image request: " + Pack.ToString());
for (int i = 0; i < imageRequest.RequestImage.Length; i++)
{
// still working on the Texture download module so for now using old method
if (OnRequestTexture != null)
{
TextureRequestArgs args = new TextureRequestArgs();
@ -2984,10 +2983,6 @@ namespace OpenSim.Region.ClientStack
OnRequestTexture(this, args);
}
// m_assetCache.AddTextureRequest(this, imageRequest.RequestImage[i].Image,
// imageRequest.RequestImage[i].Packet,
// imageRequest.RequestImage[i].DiscardLevel);
}
break;
case PacketType.TransferRequest:

75
OpenSim/Region/Environment/Modules/TextureDownloadModule.cs
View File

@ -47,7 +47,7 @@ namespace OpenSim.Region.Environment.Modules
private Scene m_scene;
private List<Scene> m_scenes = new List<Scene>();
private BlockingQueue<TextureSender> QueueSenders = new BlockingQueue<TextureSender>();
private readonly BlockingQueue<TextureSender> m_queueSenders = new BlockingQueue<TextureSender>();
private Dictionary<LLUUID, UserTextureDownloadService> m_userTextureServices =
new Dictionary<LLUUID, UserTextureDownloadService>();
@ -108,7 +108,7 @@ namespace OpenSim.Region.Environment.Modules
return true;
}
textureService = new UserTextureDownloadService(m_scene, QueueSenders);
textureService = new UserTextureDownloadService(m_scene, m_queueSenders);
m_userTextureServices.Add(userID, textureService);
return true;
}
@ -128,7 +128,7 @@ namespace OpenSim.Region.Environment.Modules
{
while (true)
{
TextureSender sender = QueueSenders.Dequeue();
TextureSender sender = m_queueSenders.Dequeue();
if (sender.Cancel)
{
TextureSent(sender);
@ -142,7 +142,7 @@ namespace OpenSim.Region.Environment.Modules
}
else
{
QueueSenders.Enqueue(sender);
m_queueSenders.Enqueue(sender);
}
}
}
@ -155,11 +155,9 @@ namespace OpenSim.Region.Environment.Modules
public class UserTextureDownloadService
{
private Dictionary<LLUUID, TextureSender> m_textureSenders = new Dictionary<LLUUID, TextureSender>();
private BlockingQueue<TextureSender> m_sharedSendersQueue;
private Scene m_scene;
private readonly Dictionary<LLUUID, TextureSender> m_textureSenders = new Dictionary<LLUUID, TextureSender>();
private readonly BlockingQueue<TextureSender> m_sharedSendersQueue;
private readonly Scene m_scene;
public UserTextureDownloadService(Scene scene, BlockingQueue<TextureSender> sharedQueue)
{
@ -169,38 +167,45 @@ namespace OpenSim.Region.Environment.Modules
public void HandleTextureRequest(IClientAPI client, TextureRequestArgs e)
{
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.ContainsKey(e.RequestedAssetID))
if (m_textureSenders.TryGetValue(e.RequestedAssetID, out textureSender))
{
textureSender.UpdateRequest(e.DiscardLevel, e.PacketNumber);
textureSender.counter = 0;
if ((textureSender.ImageLoaded) &&
(textureSender.Sending == false))
{
textureSender.Sending = true;
if (!m_sharedSendersQueue.Contains(textureSender))
{
m_sharedSendersQueue.Enqueue(textureSender);
}
}
}
else
{
TextureSender requestHandler =
new TextureSender(client, e.RequestedAssetID, e.DiscardLevel, e.PacketNumber);
m_textureSenders.Add(e.RequestedAssetID, requestHandler);
m_scene.AssetCache.GetAsset(e.RequestedAssetID, TextureCallback);
}
else
{
m_textureSenders[e.RequestedAssetID].UpdateRequest(e.DiscardLevel, e.PacketNumber);
m_textureSenders[e.RequestedAssetID].counter = 0;
if ((m_textureSenders[e.RequestedAssetID].ImageLoaded) &&
(m_textureSenders[e.RequestedAssetID].Sending == false))
{
m_textureSenders[e.RequestedAssetID].Sending = true;
m_sharedSendersQueue.Enqueue(m_textureSenders[e.RequestedAssetID]);
}
}
}
}
else
{
lock (m_textureSenders)
{
if (m_textureSenders.ContainsKey(e.RequestedAssetID))
if (m_textureSenders.TryGetValue(e.RequestedAssetID, out textureSender))
{
m_textureSenders[e.RequestedAssetID].Cancel = true;
textureSender.Cancel = true;
}
}
}
@ -210,19 +215,25 @@ namespace OpenSim.Region.Environment.Modules
{
lock (m_textureSenders)
{
if (m_textureSenders.ContainsKey(textureID))
TextureSender textureSender;
if (m_textureSenders.TryGetValue(textureID, out textureSender))
{
if (!m_textureSenders[textureID].ImageLoaded)
if (!textureSender.ImageLoaded)
{
m_textureSenders[textureID].TextureReceived(asset);
m_textureSenders[textureID].Sending = true;
m_textureSenders[textureID].counter = 0;
m_sharedSendersQueue.Enqueue(m_textureSenders[textureID]);
textureSender.TextureReceived(asset);
textureSender.Sending = true;
textureSender.counter = 0;
if (!m_sharedSendersQueue.Contains(textureSender))
{
m_sharedSendersQueue.Enqueue(textureSender);
}
}
}
else
{
// Got a texture with no sender object to handle it, this shouldn't happen
throw new Exception("Got a texture with no sender object to handle it, this shouldn't happen");
}
}
}
@ -329,9 +340,9 @@ namespace OpenSim.Region.Environment.Modules
}
catch (ArgumentOutOfRangeException)
{
MainLog.Instance.Warn("TEXTURE",
MainLog.Instance.Error("TEXTURE",
"Unable to separate texture into multiple packets: Array bounds failure on asset:" +
m_asset.FullID.ToString() + "- TextureDownloadModule.cs. line:328");
m_asset.FullID.ToString() );
return;
}
RequestUser.OutPacket(im, ThrottleOutPacketType.Texture);