using Microsoft.Extensions.Caching.Memory;
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using System;
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using System.Collections.Concurrent;
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namespace IStation.ChEr
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{
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/// <summary>
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/// 待编写
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/// </summary>
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internal sealed partial class SharedMemoryCache : IMemoryCacheDirect
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{
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/// <summary>
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/// 单例模式（延迟加载）
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/// </summary>
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private static readonly Lazy<SharedMemoryCache> _lazy = new Lazy<SharedMemoryCache>(() => new SharedMemoryCache());
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/// <summary>
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/// MemoryCache 实例
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/// </summary>
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private MemoryCache _memoryCache;
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/// <summary>
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/// 当前正在设置缓存项的缓存键集合
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/// Collection of all cache keys currently executing a function to set a cache item
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/// </summary>
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private ConcurrentDictionary<string, CacheKeyBeingHandled> _cacheKeysBeingHandled;
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/// <summary>
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/// Locker object
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/// </summary>
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private object _wipeLock = new object();
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/// <summary>
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/// 标识Wipe方法是否正在执行
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/// State flag indicating whether the wipe method is currently being executed
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/// </summary>
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private bool _isWiping = false;
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/// <summary>
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/// Locker object, used to lock set operations when a wipe is in progress
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/// </summary>
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private object _setLock = new object();
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/// <summary>
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/// State flag indicating whether any non-waitable set action is currently being executed
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/// </summary>
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private bool _isSetting = false;
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}
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}
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