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speed up ibn item retrieval

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Luke Pulverenti 2013-04-15 16:54:41 -04:00
parent 0fc6158500
commit 43f7f34b5d
1 changed files with 8 additions and 10 deletions
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18
MediaBrowser.Server.Implementations/Library/LibraryManager.cs
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@ -574,7 +574,7 @@ namespace MediaBrowser.Server.Implementations.Library
/// <summary> /// <summary>
/// The images by name item cache /// The images by name item cache
/// </summary> /// </summary>
private readonly ConcurrentDictionary<string, object> _imagesByNameItemCache = new ConcurrentDictionary<string, object>(StringComparer.OrdinalIgnoreCase); private readonly ConcurrentDictionary<string, BaseItem> _imagesByNameItemCache = new ConcurrentDictionary<string, BaseItem>(StringComparer.OrdinalIgnoreCase);
/// <summary> /// <summary>
/// Generically retrieves an IBN item /// Generically retrieves an IBN item
@ -588,7 +588,7 @@ namespace MediaBrowser.Server.Implementations.Library
/// <returns>Task{``0}.</returns> /// <returns>Task{``0}.</returns>
/// <exception cref="System.ArgumentNullException"> /// <exception cref="System.ArgumentNullException">
/// </exception> /// </exception>
private Task<T> GetImagesByNameItem<T>(string path, string name, CancellationToken cancellationToken, bool allowSlowProviders = true, bool forceCreation = false) private async Task<T> GetImagesByNameItem<T>(string path, string name, CancellationToken cancellationToken, bool allowSlowProviders = true, bool forceCreation = false)
where T : BaseItem, new() where T : BaseItem, new()
{ {
if (string.IsNullOrEmpty(path)) if (string.IsNullOrEmpty(path))
@ -603,18 +603,16 @@ namespace MediaBrowser.Server.Implementations.Library
var key = Path.Combine(path, FileSystem.GetValidFilename(name)); var key = Path.Combine(path, FileSystem.GetValidFilename(name));
if (forceCreation) BaseItem obj;
if (forceCreation || !_imagesByNameItemCache.TryGetValue(key, out obj))
{ {
var task = CreateImagesByNameItem<T>(path, name, cancellationToken, allowSlowProviders); obj = await CreateImagesByNameItem<T>(path, name, cancellationToken, allowSlowProviders).ConfigureAwait(false);
_imagesByNameItemCache.AddOrUpdate(key, task, (keyName, oldValue) => task); _imagesByNameItemCache.AddOrUpdate(key, obj, (keyName, oldValue) => obj);
return task;
} }
var obj = _imagesByNameItemCache.GetOrAdd(key, keyname => CreateImagesByNameItem<T>(path, name, cancellationToken, allowSlowProviders)); return obj as T;
return obj as Task<T>;
} }
/// <summary> /// <summary>