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Merge pull request #3747 from barronpm/memorycache

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Use Memory Cache
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Bond-009 2020-07-30 11:12:12 +02:00 committed by GitHub
commit 44dbee6ef2
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3 changed files with 30 additions and 33 deletions
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23
Emby.Server.Implementations/Channels/ChannelManager.cs
View File

@ -1,5 +1,4 @@
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
@ -22,6 +21,7 @@ using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Querying;
using MediaBrowser.Model.Serialization;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Logging;
using Episode = MediaBrowser.Controller.Entities.TV.Episode;
using Movie = MediaBrowser.Controller.Entities.Movies.Movie;
@ -45,10 +45,7 @@ namespace Emby.Server.Implementations.Channels
private readonly IFileSystem _fileSystem;
private readonly IJsonSerializer _jsonSerializer;
private readonly IProviderManager _providerManager;
private readonly ConcurrentDictionary<string, Tuple<DateTime, List<MediaSourceInfo>>> _channelItemMediaInfo =
new ConcurrentDictionary<string, Tuple<DateTime, List<MediaSourceInfo>>>();
private readonly IMemoryCache _memoryCache;
private readonly SemaphoreSlim _resourcePool = new SemaphoreSlim(1, 1);
/// <summary>
@ -63,6 +60,7 @@ namespace Emby.Server.Implementations.Channels
/// <param name="userDataManager">The user data manager.</param>
/// <param name="jsonSerializer">The JSON serializer.</param>
/// <param name="providerManager">The provider manager.</param>
/// <param name="memoryCache">The memory cache.</param>
public ChannelManager(
IUserManager userManager,
IDtoService dtoService,
@ -72,7 +70,8 @@ namespace Emby.Server.Implementations.Channels
IFileSystem fileSystem,
IUserDataManager userDataManager,
IJsonSerializer jsonSerializer,
IProviderManager providerManager)
IProviderManager providerManager,
IMemoryCache memoryCache)
{
_userManager = userManager;
_dtoService = dtoService;
@ -83,6 +82,7 @@ namespace Emby.Server.Implementations.Channels
_userDataManager = userDataManager;
_jsonSerializer = jsonSerializer;
_providerManager = providerManager;
_memoryCache = memoryCache;
}
internal IChannel[] Channels { get; private set; }
@ -417,20 +417,15 @@ namespace Emby.Server.Implementations.Channels
private async Task<IEnumerable<MediaSourceInfo>> GetChannelItemMediaSourcesInternal(IRequiresMediaInfoCallback channel, string id, CancellationToken cancellationToken)
{
if (_channelItemMediaInfo.TryGetValue(id, out Tuple<DateTime, List<MediaSourceInfo>> cachedInfo))
if (_memoryCache.TryGetValue(id, out List<MediaSourceInfo> cachedInfo))
{
if ((DateTime.UtcNow - cachedInfo.Item1).TotalMinutes < 5)
{
return cachedInfo.Item2;
}
return cachedInfo;
}
var mediaInfo = await channel.GetChannelItemMediaInfo(id, cancellationToken)
.ConfigureAwait(false);
var list = mediaInfo.ToList();
var item2 = new Tuple<DateTime, List<MediaSourceInfo>>(DateTime.UtcNow, list);
_channelItemMediaInfo.AddOrUpdate(id, item2, (key, oldValue) => item2);
_memoryCache.CreateEntry(id).SetValue(list).SetAbsoluteExpiration(DateTimeOffset.UtcNow.AddMinutes(5));
return list;
}

23
Emby.Server.Implementations/Devices/DeviceManager.cs
View File

@ -5,8 +5,8 @@ using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using Jellyfin.Data.Enums;
using Jellyfin.Data.Entities;
using Jellyfin.Data.Enums;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Devices;
@ -17,16 +17,17 @@ using MediaBrowser.Model.Events;
using MediaBrowser.Model.Querying;
using MediaBrowser.Model.Serialization;
using MediaBrowser.Model.Session;
using Microsoft.Extensions.Caching.Memory;
namespace Emby.Server.Implementations.Devices
{
public class DeviceManager : IDeviceManager
{
private readonly IMemoryCache _memoryCache;
private readonly IJsonSerializer _json;
private readonly IUserManager _userManager;
private readonly IServerConfigurationManager _config;
private readonly IAuthenticationRepository _authRepo;
private readonly Dictionary<string, ClientCapabilities> _capabilitiesCache;
private readonly object _capabilitiesSyncLock = new object();
public event EventHandler<GenericEventArgs<Tuple<string, DeviceOptions>>> DeviceOptionsUpdated;
@ -35,13 +36,14 @@ namespace Emby.Server.Implementations.Devices
IAuthenticationRepository authRepo,
IJsonSerializer json,
IUserManager userManager,
IServerConfigurationManager config)
IServerConfigurationManager config,
IMemoryCache memoryCache)
{
_json = json;
_userManager = userManager;
_config = config;
_memoryCache = memoryCache;
_authRepo = authRepo;
_capabilitiesCache = new Dictionary<string, ClientCapabilities>(StringComparer.OrdinalIgnoreCase);
}
public void SaveCapabilities(string deviceId, ClientCapabilities capabilities)
@ -51,8 +53,7 @@ namespace Emby.Server.Implementations.Devices
lock (_capabilitiesSyncLock)
{
_capabilitiesCache[deviceId] = capabilities;
_memoryCache.CreateEntry(deviceId).SetValue(capabilities);
_json.SerializeToFile(capabilities, path);
}
}
@ -71,13 +72,13 @@ namespace Emby.Server.Implementations.Devices
public ClientCapabilities GetCapabilities(string id)
{
if (_memoryCache.TryGetValue(id, out ClientCapabilities result))
{
return result;
}
lock (_capabilitiesSyncLock)
{
if (_capabilitiesCache.TryGetValue(id, out var result))
{
return result;
}
var path = Path.Combine(GetDevicePath(id), "capabilities.json");
try
{

17
Emby.Server.Implementations/Library/LibraryManager.cs
View File

@ -1,7 +1,6 @@
#pragma warning disable CS1591
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
@ -46,6 +45,7 @@ using MediaBrowser.Model.Net;
using MediaBrowser.Model.Querying;
using MediaBrowser.Model.Tasks;
using MediaBrowser.Providers.MediaInfo;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Logging;
using Episode = MediaBrowser.Controller.Entities.TV.Episode;
using Genre = MediaBrowser.Controller.Entities.Genre;
@ -63,6 +63,7 @@ namespace Emby.Server.Implementations.Library
private const string ShortcutFileExtension = ".mblink";
private readonly ILogger<LibraryManager> _logger;
private readonly IMemoryCache _memoryCache;
private readonly ITaskManager _taskManager;
private readonly IUserManager _userManager;
private readonly IUserDataManager _userDataRepository;
@ -74,7 +75,6 @@ namespace Emby.Server.Implementations.Library
private readonly IMediaEncoder _mediaEncoder;
private readonly IFileSystem _fileSystem;
private readonly IItemRepository _itemRepository;
private readonly ConcurrentDictionary<Guid, BaseItem> _libraryItemsCache;
private readonly IImageProcessor _imageProcessor;
/// <summary>
@ -112,6 +112,7 @@ namespace Emby.Server.Implementations.Library
/// <param name="mediaEncoder">The media encoder.</param>
/// <param name="itemRepository">The item repository.</param>
/// <param name="imageProcessor">The image processor.</param>
/// <param name="memoryCache">The memory cache.</param>
public LibraryManager(
IServerApplicationHost appHost,
ILogger<LibraryManager> logger,
@ -125,7 +126,8 @@ namespace Emby.Server.Implementations.Library
Lazy<IUserViewManager> userviewManagerFactory,
IMediaEncoder mediaEncoder,
IItemRepository itemRepository,
IImageProcessor imageProcessor)
IImageProcessor imageProcessor,
IMemoryCache memoryCache)
{
_appHost = appHost;
_logger = logger;
@ -140,8 +142,7 @@ namespace Emby.Server.Implementations.Library
_mediaEncoder = mediaEncoder;
_itemRepository = itemRepository;
_imageProcessor = imageProcessor;
_libraryItemsCache = new ConcurrentDictionary<Guid, BaseItem>();
_memoryCache = memoryCache;
_configurationManager.ConfigurationUpdated += ConfigurationUpdated;
@ -299,7 +300,7 @@ namespace Emby.Server.Implementations.Library
}
}
_libraryItemsCache.AddOrUpdate(item.Id, item, delegate { return item; });
_memoryCache.CreateEntry(item.Id).SetValue(item);
}
public void DeleteItem(BaseItem item, DeleteOptions options)
@ -447,7 +448,7 @@ namespace Emby.Server.Implementations.Library
_itemRepository.DeleteItem(child.Id);
}
_libraryItemsCache.TryRemove(item.Id, out BaseItem removed);
_memoryCache.Remove(item.Id);
ReportItemRemoved(item, parent);
}
@ -1248,7 +1249,7 @@ namespace Emby.Server.Implementations.Library
throw new ArgumentException("Guid can't be empty", nameof(id));
}
if (_libraryItemsCache.TryGetValue(id, out BaseItem item))
if (_memoryCache.TryGetValue(id, out BaseItem item))
{
return item;
}