build: 10.11.116

fix: 网关监控页面 js释放
test: Benchmark编译错误

src/Admin/ThingsGateway.Admin.Application/Filter/RequestAuditFilter.cs

@@ -251,11 +251,13 @@ public class RequestAuditFilter : IAsyncActionFilter, IOrderedFilter
 
         if (exception == null)
         {
-            logger.Log(LogLevel.Information, $"{logData.Method}:{logData.Path}-{logData.Operation}");
+            if (logger.IsEnabled(LogLevel.Information))
+                logger.Log(LogLevel.Information, $"{logData.Method}:{logData.Path}-{logData.Operation}");
         }
         else
         {
-            logger.Log(LogLevel.Warning, $"{logData.Method}:{logData.Path}-{logData.Operation}{Environment.NewLine}{logData.Exception?.ToSystemTextJsonString()}{Environment.NewLine}{logData.Validation?.ToSystemTextJsonString()}");
+            if (logger.IsEnabled(LogLevel.Warning))
+                logger.Log(LogLevel.Warning, $"{logData.Method}:{logData.Path}-{logData.Operation}{Environment.NewLine}{logData.Exception?.ToSystemTextJsonString()}{Environment.NewLine}{logData.Validation?.ToSystemTextJsonString()}");
         }
     }
 

src/Admin/ThingsGateway.Admin.Application/Services/Event/EventService.cs

@@ -20,7 +20,7 @@ namespace ThingsGateway.Admin.Application;
 /// <typeparam name="TEntry"></typeparam>
 public class EventService<TEntry> : IEventService<TEntry>, IDisposable
 {
-    private ConcurrentDictionary<string, Func<TEntry, Task>> Cache = new();
+    private NonBlockingDictionary<string, Func<TEntry, Task>> Cache = new();
 
     public void Dispose()
     {

src/Admin/ThingsGateway.Admin.Application/ThingsGateway.Admin.Application.csproj

@@ -20,7 +20,7 @@
 	
 	<ItemGroup>
 		<PackageReference Include="Riok.Mapperly" Version="4.2.1" ExcludeAssets="runtime" PrivateAssets="all" />
-		<PackageReference Include="Rougamo.Fody" Version="5.0.1" />
+		<PackageReference Include="Rougamo.Fody" Version="5.0.2" />
 	</ItemGroup>
 	<ItemGroup Condition=" '$(TargetFramework)' == 'net8.0' ">
 		<PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="8.0.1" />

src/Admin/ThingsGateway.Admin.Razor/Components/AdminTable.razor

@@ -4,8 +4,8 @@
 
 <div class="tg-table h-100">
 
-    <Table TItem="TItem" IsBordered="true" IsStriped="true" TableSize="TableSize.Compact" SelectedRows=SelectedRows SelectedRowsChanged=privateSelectedRowsChanged IsMultipleSelect="IsMultipleSelect" @ref="Instance" SearchTemplate="SearchTemplate"
-           DataService="DataService" CreateItemCallback="CreateItemCallback!"
+    <Table Id=@Id TItem="TItem" IsBordered="true" IsStriped="true" TableSize="TableSize.Compact" SelectedRows=SelectedRows SelectedRowsChanged=privateSelectedRowsChanged IsMultipleSelect="IsMultipleSelect" @ref="Instance" SearchTemplate="SearchTemplate"
+           DataService="DataService" CreateItemCallback="CreateItemCallback!" RenderMode=RenderMode OnColumnCreating=OnColumnCreating
            IsPagination="IsPagination" PageItemsSource="PageItemsSource" IsFixedHeader="IsFixedHeader" IndentSize=24 RowHeight=RowHeight ShowSearchText="ShowSearchText" ShowSearchButton="ShowSearchButton" DisableEditButtonCallback="DisableEditButtonCallback" DisableDeleteButtonCallback="DisableDeleteButtonCallback" BeforeShowEditDialogCallback=" BeforeShowEditDialogCallback!"
            IsTree="IsTree" OnTreeExpand="OnTreeExpand!" TreeNodeConverter="TreeNodeConverter!" TreeIcon="fa-solid fa-circle-chevron-right" TreeExpandIcon="fa-solid fa-circle-chevron-right fa-rotate-90" IsAutoQueryFirstRender=IsAutoQueryFirstRender
            ShowDefaultButtons="ShowDefaultButtons" ShowAdvancedSearch="ShowAdvancedSearch" ShowResetButton=ShowResetButton
@@ -14,7 +14,7 @@
            ShowSkeleton="true" ShowLoading="ShowLoading" ShowSearch="ShowSearch" SearchModel=@SearchModel ShowLineNo
            SearchMode=SearchMode ShowExportPdfButton=ShowExportPdfButton ExportButtonText=@ExportButtonText
            ShowExportButton=@ShowExportButton Items=Items ClickToSelect=ClickToSelect ScrollMode=ScrollMode
-           ShowExportCsvButton=@ShowExportCsvButton ShowCardView=ShowCardView
+           ShowExportCsvButton=@ShowExportCsvButton ShowCardView=ShowCardView OnColumnVisibleChanged=OnColumnVisibleChanged
            FixedExtendButtonsColumn=FixedExtendButtonsColumn FixedMultipleColumn=FixedMultipleColumn FixedDetailRowHeaderColumn=FixedDetailRowHeaderColumn FixedLineNoColumn=FixedLineNoColumn
            IsAutoRefresh=IsAutoRefresh AutoRefreshInterval=AutoRefreshInterval
            AllowDragColumn=@AllowDragColumn Height=@Height ShowRefresh=ShowRefresh
@@ -41,6 +41,7 @@
            DoubleClickToEdit="DoubleClickToEdit"
            OnDoubleClickCellCallback="OnDoubleClickCellCallback"
            OnDoubleClickRowCallback="OnDoubleClickRowCallback"
+           RowContentTemplate="RowContentTemplate"
            OnClickRowCallback="OnClickRowCallback">
     </Table>
 </div>

src/Admin/ThingsGateway.Admin.Razor/Components/AdminTable.razor.cs

@@ -13,6 +13,23 @@ namespace ThingsGateway.Admin.Razor;
 [CascadingTypeParameter(nameof(TItem))]
 public partial class AdminTable<TItem> where TItem : class, new()
 {
+    /// <inheritdoc cref="Table{TItem}.OnColumnVisibleChanged"/>
+    [Parameter]
+    public Func<string, bool, Task> OnColumnVisibleChanged { get; set; }
+
+    /// <inheritdoc cref="Table{TItem}.OnColumnCreating"/>
+    [Parameter]
+    public Func<List<ITableColumn>, Task> OnColumnCreating { get; set; }
+    /// <inheritdoc cref="Table{TItem}.RenderMode"/>
+    [Parameter]
+    public TableRenderMode RenderMode { get; set; }
+
+    public List<ITableColumn> Columns => Instance?.Columns;
+
+    public IEnumerable<ITableColumn> GetVisibleColumns => Instance?.GetVisibleColumns();
+    public List<TItem> Rows => Instance?.Rows;
+
+
     /// <inheritdoc cref="Table{TItem}.SelectedRowsChanged"/>
     [Parameter]
     public EventCallback<List<TItem>> SelectedRowsChanged { get; set; }
@@ -40,6 +57,10 @@ public partial class AdminTable<TItem> where TItem : class, new()
     /// <inheritdoc cref="Table{TItem}.OnDoubleClickRowCallback"/>
     [Parameter]
     public Func<TItem, Task>? OnDoubleClickRowCallback { get; set; }
+    /// <inheritdoc cref="Table{TItem}.RowContentTemplate"/>
+    [Parameter]
+    public RenderFragment<TableRowContext<TItem>>? RowContentTemplate { get; set; }
+
     /// <inheritdoc cref="Table{TItem}.OnClickRowCallback"/>
     [Parameter]
     public Func<TItem, Task>? OnClickRowCallback { get; set; }
@@ -146,6 +167,9 @@ public partial class AdminTable<TItem> where TItem : class, new()
     [Parameter]
     public IDataService<TItem> DataService { get; set; }
 
+    [Parameter]
+    public string? Id { get; set; }
+
     /// <inheritdoc cref="Table{TItem}.CreateItemCallback"/>
     [Parameter]
     public Func<TItem> CreateItemCallback { get; set; }

src/Admin/ThingsGateway.Admin.Razor/Pages/HardwareInfoPage.razor.cs

@@ -72,7 +72,7 @@ public partial class HardwareInfoPage : IDisposable
             ChartDataSource.Options.Title = Localizer[nameof(HistoryHardwareInfo)];
             ChartDataSource.Options.X.Title = Localizer["DateTime"];
             ChartDataSource.Options.Y.Title = Localizer["Data"];
-            ChartDataSource.Labels = hisHardwareInfos.Select(a => a.Date.ToString("dd HH:mm zz"));
+            ChartDataSource.Labels = hisHardwareInfos.Select(a => a.Date.ToString("dd-HH:mm"));
             ChartDataSource.Data.Add(new ChartDataset()
             {
                 Tension = 0.4f,
@@ -116,7 +116,7 @@ public partial class HardwareInfoPage : IDisposable
         else
         {
             var hisHardwareInfos = await HardwareJob.GetHistoryHardwareInfos();
-            ChartDataSource.Labels = hisHardwareInfos.Select(a => a.Date.ToString("dd HH:mm zz"));
+            ChartDataSource.Labels = hisHardwareInfos.Select(a => a.Date.ToString("dd-HH:mm"));
             ChartDataSource.Data[0].Data = hisHardwareInfos.Select(a => (object)a.CpuUsage);
             ChartDataSource.Data[1].Data = hisHardwareInfos.Select(a => (object)a.MemoryUsage);
             ChartDataSource.Data[2].Data = hisHardwareInfos.Select(a => (object)a.DriveUsage);

src/Admin/ThingsGateway.Admin.Razor/ThingsGateway.Admin.Razor.csproj

@@ -5,7 +5,7 @@
 
 	<ItemGroup>
 		<ProjectReference Include="..\ThingsGateway.Admin.Application\ThingsGateway.Admin.Application.csproj" />
-		<PackageReference Include="BootstrapBlazor.Chart" Version="9.0.1" />
+		<PackageReference Include="BootstrapBlazor.Chart" Version="9.0.4" />
 		<PackageReference Include="BootstrapBlazor.UniverSheet" Version="9.0.5" />
 		<PackageReference Include="BootstrapBlazor.WinBox" Version="9.0.7" />
 		<PackageReference Include="BootstrapBlazor.CodeEditor" Version="9.0.3" />

src/Admin/ThingsGateway.Common/Common/ConcurrentList.cs

@@ -1,4 +1,4 @@
-//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
 //  此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
 //  此代码版权（除特别声明外的代码）归作者本人Diego所有
 //  源代码使用协议遵循本仓库的开源协议及附加协议
@@ -477,7 +477,7 @@ public class ConcurrentList<T> : IList<T>, IReadOnlyList<T>
     {
         lock (((ICollection)m_list).SyncRoot)
         {
-            return m_list.IndexOf(item);
+            return m_list.LastIndexOf(item);
         }
     }
 

src/Admin/ThingsGateway.Common/Extensions/ObjectExtensions.cs

@@ -82,7 +82,7 @@ public static class ObjectExtensions
     /// <typeparam name="T"></typeparam>
     /// <param name="dic">字典</param>
     /// <param name="newDic">新字典</param>
-    internal static void AddOrUpdate<T>(this ConcurrentDictionary<string, T> dic, Dictionary<string, T> newDic)
+    internal static void AddOrUpdate<T>(this NonBlockingDictionary<string, T> dic, Dictionary<string, T> newDic)
     {
         foreach (var (key, value) in newDic)
         {

src/Admin/ThingsGateway.Common/Localization/Json/JsonStringLocalizer.cs

@@ -66,7 +66,8 @@ internal class JsonStringLocalizer(Assembly assembly, string typeName, string ba
                 }
                 catch (Exception ex)
                 {
-                    Logger.LogError(ex, "{JsonStringLocalizerName} searched for '{Name}' in '{typeName}' with culture '{CultureName}' throw exception.", nameof(JsonStringLocalizer), name, typeName, CultureInfo.CurrentUICulture.Name);
+                    if (Logger?.IsEnabled(LogLevel.Error) == true)
+                        Logger.LogError(ex, "{JsonStringLocalizerName} searched for '{Name}' in '{typeName}' with culture '{CultureName}' throw exception.", nameof(JsonStringLocalizer), name, typeName, CultureInfo.CurrentUICulture.Name);
                 }
                 return ret;
             }
@@ -176,7 +177,8 @@ internal class JsonStringLocalizer(Assembly assembly, string typeName, string ba
         localizationMissingItemHandler.HandleMissingItem(name, typeName, CultureInfo.CurrentUICulture.Name);
         if (jsonLocalizationOptions.IgnoreLocalizerMissing == false)
         {
-            Logger.LogInformation("{JsonStringLocalizerName} searched for '{Name}' in '{TypeName}' with culture '{CultureName}' not found.", nameof(JsonStringLocalizer), name, typeName, CultureInfo.CurrentUICulture.Name);
+            if (Logger?.IsEnabled(LogLevel.Information) == true)
+                Logger.LogInformation("{JsonStringLocalizerName} searched for '{Name}' in '{TypeName}' with culture '{CultureName}' not found.", nameof(JsonStringLocalizer), name, typeName, CultureInfo.CurrentUICulture.Name);
         }
         _missingManifestCache.TryAdd($"name={name}&culture={CultureInfo.CurrentUICulture.Name}");
     }

src/Admin/ThingsGateway.Common/ThingsGateway.Common.csproj

@@ -14,7 +14,7 @@
 	<ItemGroup>
 		<PackageReference Include="BootstrapBlazor.TableExport" Version="9.2.7" />
 		<PackageReference Include="Yitter.IdGenerator" Version="1.0.14" />
-		<PackageReference Include="BootstrapBlazor" Version="9.11.0" />
+		<PackageReference Include="BootstrapBlazor" Version="9.11.2" />
 	</ItemGroup>
 
 	<ItemGroup>

src/Admin/ThingsGateway.Furion/App/Extensions/ObjectExtensions.cs

@@ -205,7 +205,7 @@ public static class ObjectExtensions
     /// <typeparam name="T"></typeparam>
     /// <param name="dic">字典</param>
     /// <param name="newDic">新字典</param>
-    internal static void AddOrUpdate<T>(this ConcurrentDictionary<string, T> dic, Dictionary<string, T> newDic)
+    internal static void AddOrUpdate<T>(this NonBlockingDictionary<string, T> dic, Dictionary<string, T> newDic)
     {
         foreach (var (key, value) in newDic)
         {

src/Admin/ThingsGateway.Furion/AspNetCore/Extensions/AspNetCoreBuilderServiceCollectionExtensions.cs

@@ -94,7 +94,7 @@ public static class AspNetCoreBuilderServiceCollectionExtensions
     /// <param name="mvcBuilder"></param>
     /// <param name="configure"></param>
     /// <returns></returns>
-    public static IMvcBuilder AddFromConvertBinding(this IMvcBuilder mvcBuilder, Action<ConcurrentDictionary<Type, Type>> configure = default)
+    public static IMvcBuilder AddFromConvertBinding(this IMvcBuilder mvcBuilder, Action<NonBlockingDictionary<Type, Type>> configure = default)
     {
         mvcBuilder.Services.AddFromConvertBinding(configure);
 
@@ -107,13 +107,13 @@ public static class AspNetCoreBuilderServiceCollectionExtensions
     /// <param name="services"></param>
     /// <param name="configure"></param>
     /// <returns></returns>
-    public static IServiceCollection AddFromConvertBinding(this IServiceCollection services, Action<ConcurrentDictionary<Type, Type>> configure = default)
+    public static IServiceCollection AddFromConvertBinding(this IServiceCollection services, Action<NonBlockingDictionary<Type, Type>> configure = default)
     {
         // 非 Web 环境跳过注册
         if (App.WebHostEnvironment == default) return services;
 
         // 定义模型绑定转换器集合
-        var modelBinderConverts = new ConcurrentDictionary<Type, Type>();
+        var modelBinderConverts = new NonBlockingDictionary<Type, Type>();
         modelBinderConverts.TryAdd(typeof(DateTime), typeof(DateTimeModelConvertBinder));
         modelBinderConverts.TryAdd(typeof(DateTimeOffset), typeof(DateTimeOffsetModelConvertBinder));
 

src/Admin/ThingsGateway.Furion/AspNetCore/ModelBinders/Binders/FromConvertBinder.cs

@@ -27,13 +27,13 @@ public class FromConvertBinder : IModelBinder
     /// <summary>
     /// 定义模型绑定转换器集合
     /// </summary>
-    private readonly ConcurrentDictionary<Type, Type> _modelBinderConverts;
+    private readonly NonBlockingDictionary<Type, Type> _modelBinderConverts;
 
     /// <summary>
     /// 构造函数
     /// </summary>
     /// <param name="modelBinderConverts">定义模型绑定转换器集合</param>
-    public FromConvertBinder(ConcurrentDictionary<Type, Type> modelBinderConverts)
+    public FromConvertBinder(NonBlockingDictionary<Type, Type> modelBinderConverts)
     {
         _modelBinderConverts = modelBinderConverts;
     }

src/Admin/ThingsGateway.Furion/AspNetCore/ModelBinders/Binders/FromConvertBinderProvider.cs

@@ -28,13 +28,13 @@ public class FromConvertBinderProvider : IModelBinderProvider
     /// <summary>
     /// 定义模型绑定转换器集合
     /// </summary>
-    private readonly ConcurrentDictionary<Type, Type> _modelBinderConverts;
+    private readonly NonBlockingDictionary<Type, Type> _modelBinderConverts;
 
     /// <summary>
     /// 构造函数
     /// </summary>
     /// <param name="modelBinderConverts">定义模型绑定转换器集合</param>
-    public FromConvertBinderProvider(ConcurrentDictionary<Type, Type> modelBinderConverts)
+    public FromConvertBinderProvider(NonBlockingDictionary<Type, Type> modelBinderConverts)
     {
         _modelBinderConverts = modelBinderConverts;
     }

src/Admin/ThingsGateway.Furion/DataValidation/Validators/DataValidator.cs

@@ -40,7 +40,7 @@ public static class DataValidator
     /// <summary>
     /// 验证类型正则表达式
     /// </summary>
-    private static readonly ConcurrentDictionary<string, ValidationItemMetadataAttribute> ValidationItemMetadatas;
+    private static readonly NonBlockingDictionary<string, ValidationItemMetadataAttribute> ValidationItemMetadatas;
 
     /// <summary>
     /// 构造函数
@@ -57,7 +57,7 @@ public static class DataValidator
         ValidationItemMetadatas = GetValidationValidationItemMetadatas();
 
         // 缓存所有正则表达式
-        GetValidationTypeValidationItemMetadataCached = new ConcurrentDictionary<object, (string, ValidationItemMetadataAttribute)>();
+        GetValidationTypeValidationItemMetadataCached = new NonBlockingDictionary<object, (string, ValidationItemMetadataAttribute)>();
     }
 
     /// <summary>
@@ -203,7 +203,7 @@ public static class DataValidator
     /// <summary>
     /// 获取验证类型验证Item集合
     /// </summary>
-    private static readonly ConcurrentDictionary<object, (string, ValidationItemMetadataAttribute)> GetValidationTypeValidationItemMetadataCached;
+    private static readonly NonBlockingDictionary<object, (string, ValidationItemMetadataAttribute)> GetValidationTypeValidationItemMetadataCached;
 
     /// <summary>
     /// 获取验证类型正则表达式（需要缓存）
@@ -267,9 +267,9 @@ public static class DataValidator
     /// 获取验证类型所有有效的正则表达式
     /// </summary>
     /// <returns></returns>
-    private static ConcurrentDictionary<string, ValidationItemMetadataAttribute> GetValidationValidationItemMetadatas()
+    private static NonBlockingDictionary<string, ValidationItemMetadataAttribute> GetValidationValidationItemMetadatas()
     {
-        var vaidationItems = new ConcurrentDictionary<string, ValidationItemMetadataAttribute>();
+        var vaidationItems = new NonBlockingDictionary<string, ValidationItemMetadataAttribute>();
 
         // 查找所有 [ValidationMessageType] 类型中的 [ValidationMessage] 消息定义
         var customErrorMessages = ValidationMessageTypes.SelectMany(u => u.GetFields()

src/Admin/ThingsGateway.Furion/DependencyInjection/Extensions/DependencyInjectionServiceCollectionExtensions.cs

@@ -353,7 +353,7 @@ public static class DependencyInjectionServiceCollectionExtensions
     /// <summary>
     /// 类型名称集合
     /// </summary>
-    private static readonly ConcurrentDictionary<string, Type> TypeNamedCollection;
+    private static readonly NonBlockingDictionary<string, Type> TypeNamedCollection;
 
     /// <summary>
     /// 创建代理方法
@@ -374,7 +374,7 @@ public static class DependencyInjectionServiceCollectionExtensions
         GlobalServiceProxyType = App.EffectiveTypes
             .FirstOrDefault(u => typeof(AspectDispatchProxy).IsAssignableFrom(u) && typeof(IGlobalDispatchProxy).IsAssignableFrom(u) && u.IsClass && !u.IsInterface && !u.IsAbstract);
 
-        TypeNamedCollection = new ConcurrentDictionary<string, Type>();
+        TypeNamedCollection = new NonBlockingDictionary<string, Type>();
         DispatchCreateMethod = typeof(AspectDispatchProxy).GetMethod(nameof(AspectDispatchProxy.Create));
     }
 }

src/Admin/ThingsGateway.Furion/DynamicApiController/Internal/Penetrates.cs

@@ -28,21 +28,21 @@ internal static class Penetrates
     /// <summary>
     /// 请求动词映射字典
     /// </summary>
-    internal static ConcurrentDictionary<string, string> VerbToHttpMethods { get; private set; }
+    internal static NonBlockingDictionary<string, string> VerbToHttpMethods { get; private set; }
 
     /// <summary>
     /// 控制器排序集合
     /// </summary>
-    internal static ConcurrentDictionary<string, (string, int, Type)> ControllerOrderCollection { get; set; }
+    internal static NonBlockingDictionary<string, (string, int, Type)> ControllerOrderCollection { get; set; }
 
     /// <summary>
     /// 构造函数
     /// </summary>
     static Penetrates()
     {
-        ControllerOrderCollection = new ConcurrentDictionary<string, (string, int, Type)>();
+        ControllerOrderCollection = new NonBlockingDictionary<string, (string, int, Type)>();
 
-        VerbToHttpMethods = new ConcurrentDictionary<string, string>
+        VerbToHttpMethods = new NonBlockingDictionary<string, string>
         {
             ["post"] = "POST",
             ["add"] = "POST",
@@ -67,13 +67,13 @@ internal static class Penetrates
             ["patch"] = "PATCH"
         };
 
-        //IsApiControllerCached = new ConcurrentDictionary<Type, bool>();
+        //IsApiControllerCached = new NonBlockingDictionary<Type, bool>();
     }
 
     ///// <summary>
     ///// <see cref="IsApiController(Type)"/> 缓存集合
     ///// </summary>
-    //private static readonly ConcurrentDictionary<Type, bool> IsApiControllerCached;
+    //private static readonly NonBlockingDictionary<Type, bool> IsApiControllerCached;
 
     /// <summary>
     /// 是否是Api控制器

src/Admin/ThingsGateway.Furion/EventBus/HostedServices/EventBusHostedService.cs

@@ -61,7 +61,7 @@ internal sealed class EventBusHostedService : BackgroundService
     /// <summary>
     /// 事件处理程序集合
     /// </summary>
-    private readonly ConcurrentDictionary<EventHandlerWrapper, EventHandlerWrapper> _eventHandlers = new();
+    private readonly NonBlockingDictionary<EventHandlerWrapper, EventHandlerWrapper> _eventHandlers = new();
 
     /// <summary>
     /// 构造函数
@@ -295,7 +295,8 @@ internal sealed class EventBusHostedService : BackgroundService
                         , retryAction: (total, times) =>
                         {
                             // 输出重试日志
-                            _logger.LogWarning("Retrying {times}/{total} times for {EventId}", times, total, eventSource.EventId);
+                            if (_logger?.IsEnabled(Microsoft.Extensions.Logging.LogLevel.Warning) == true)
+                                _logger.LogWarning("Retrying {times}/{total} times for {EventId}", times, total, eventSource.EventId);
                         }).ConfigureAwait(false);
                     }
                     else

src/Admin/ThingsGateway.Furion/FriendlyException/Oops.cs

@@ -31,7 +31,7 @@ public static class Oops
     /// <summary>
     /// 方法错误异常特性
     /// </summary>
-    private static readonly ConcurrentDictionary<MethodBase, MethodIfException> _errorMethods;
+    private static readonly NonBlockingDictionary<MethodBase, MethodIfException> _errorMethods;
 
     /// <summary>
     /// 错误代码类型
@@ -41,7 +41,7 @@ public static class Oops
     /// <summary>
     /// 错误消息字典
     /// </summary>
-    private static readonly ConcurrentDictionary<string, string> _errorCodeMessages;
+    private static readonly NonBlockingDictionary<string, string> _errorCodeMessages;
 
     /// <summary>
     /// 友好异常设置
@@ -53,7 +53,7 @@ public static class Oops
     /// </summary>
     static Oops()
     {
-        _errorMethods = new ConcurrentDictionary<MethodBase, MethodIfException>();
+        _errorMethods = new NonBlockingDictionary<MethodBase, MethodIfException>();
         _friendlyExceptionSettings = App.GetConfig<FriendlyExceptionSettingsOptions>("FriendlyExceptionSettings", true);
         _errorCodeTypes = GetErrorCodeTypes();
         _errorCodeMessages = GetErrorCodeMessages();
@@ -258,9 +258,9 @@ public static class Oops
     /// 获取所有错误消息
     /// </summary>
     /// <returns></returns>
-    private static ConcurrentDictionary<string, string> GetErrorCodeMessages()
+    private static NonBlockingDictionary<string, string> GetErrorCodeMessages()
     {
-        var defaultErrorCodeMessages = new ConcurrentDictionary<string, string>();
+        var defaultErrorCodeMessages = new NonBlockingDictionary<string, string>();
 
         // 查找所有 [ErrorCodeType] 类型中的 [ErrorCodeMetadata] 元数据定义
         var errorCodeMessages = _errorCodeTypes.SelectMany(u => u.GetFields().Where(u => u.IsDefined(typeof(ErrorCodeItemMetadataAttribute))))

src/Admin/ThingsGateway.Furion/Logging/Extensions/ILoggerExtensions.cs

@@ -23,7 +23,7 @@ public static class ILoggerExtensions
     /// 设置日志上下文
     /// </summary>
     /// <param name="logger"></param>
-    /// <param name="properties">建议使用 ConcurrentDictionary 类型</param>
+    /// <param name="properties">建议使用 NonBlockingDictionary 类型</param>
     /// <returns></returns>
     public static IDisposable ScopeContext(this ILogger logger, IDictionary<string, object> properties)
     {

src/Admin/ThingsGateway.Furion/Logging/Extensions/StringLoggingExtensions.cs

@@ -82,7 +82,7 @@ public static class StringLoggingExtensions
     /// 配置日志上下文
     /// </summary>
     /// <param name="message"></param>
-    /// <param name="properties">建议使用 ConcurrentDictionary 类型</param>
+    /// <param name="properties">建议使用 NonBlockingDictionary 类型</param>
     /// <returns></returns>
     public static StringLoggingPart ScopeContext(this string message, IDictionary<string, object> properties)
     {

src/Admin/ThingsGateway.Furion/Logging/Implantations/File/FileLoggerProvider.cs

@@ -44,7 +44,7 @@ public sealed class FileLoggerProvider : ILoggerProvider, ISupportExternalScope
     /// 记录日志所有滚动文件名
     /// </summary>
     /// <remarks>只有 MaxRollingFiles 和 FileSizeLimitBytes 大于 0 有效</remarks>
-    internal readonly ConcurrentDictionary<string, FileInfo> _rollingFileNames = new();
+    internal readonly NonBlockingDictionary<string, FileInfo> _rollingFileNames = new();
 
     /// <summary>
     /// 文件日志写入器

src/Admin/ThingsGateway.Furion/Logging/Internal/StringLoggingPartSetters.cs

@@ -94,7 +94,7 @@ public sealed partial class StringLoggingPart
     /// <summary>
     /// 配置日志上下文
     /// </summary>
-    /// <param name="properties">建议使用 ConcurrentDictionary 类型</param>
+    /// <param name="properties">建议使用 NonBlockingDictionary 类型</param>
     /// <returns></returns>
     public StringLoggingPart ScopeContext(IDictionary<string, object> properties)
     {

src/Admin/ThingsGateway.Furion/Logging/Log.cs

@@ -57,7 +57,7 @@ public static class Log
     /// <summary>
     /// 配置日志上下文
     /// </summary>
-    /// <param name="properties">建议使用 ConcurrentDictionary 类型</param>
+    /// <param name="properties">建议使用 NonBlockingDictionary 类型</param>
     /// <returns></returns>
     public static (ILogger logger, IDisposable scope) ScopeContext(IDictionary<string, object> properties)
     {

src/Admin/ThingsGateway.Furion/Schedule/Cancellations/JobCancellationToken.cs

@@ -21,7 +21,7 @@ internal sealed class JobCancellationToken : IJobCancellationToken
     /// <summary>
     /// 取消作业执行 Token 集合
     /// </summary>
-    private readonly ConcurrentDictionary<string, CancellationTokenSource> _cancellationTokenSources;
+    private readonly NonBlockingDictionary<string, CancellationTokenSource> _cancellationTokenSources;
 
     /// <summary>
     /// 作业调度器日志服务

src/Admin/ThingsGateway.Furion/Schedule/Details/JobDetail.Methods.cs

@@ -167,7 +167,7 @@ public partial class JobDetail
     /// <summary>
     /// 带命名规则的数据库列名
     /// </summary>
-    private readonly ConcurrentDictionary<NamingConventions, string[]> _namingColumnNames = new();
+    private readonly NonBlockingDictionary<NamingConventions, string[]> _namingColumnNames = new();
 
     /// <summary>
     /// 获取数据库列名

src/Admin/ThingsGateway.Furion/Schedule/Factories/SchedulerFactory.Internal.cs

@@ -65,7 +65,7 @@ internal sealed partial class SchedulerFactory : ISchedulerFactory
     /// <summary>
     /// 作业计划集合
     /// </summary>
-    private readonly ConcurrentDictionary<string, Scheduler> _schedulers = new();
+    private readonly NonBlockingDictionary<string, Scheduler> _schedulers = new();
 
     /// <summary>
     /// 作业计划构建器集合

src/Admin/ThingsGateway.Furion/Schedule/HostedServices/ScheduleHostedService.cs

@@ -369,11 +369,13 @@ internal sealed class ScheduleHostedService : BackgroundService
                             // 写入作业执行详细日志
                             if (executionException == null)
                             {
-                                jobLogger?.LogInformation("{jobExecutingContext}", jobExecutingContext);
+                                if (jobLogger?.IsEnabled(Microsoft.Extensions.Logging.LogLevel.Information) == true)
+                                    jobLogger?.LogInformation("{jobExecutingContext}", jobExecutingContext);
                             }
                             else
                             {
-                                jobLogger?.LogError(executionException, "{jobExecutingContext}", jobExecutingContext);
+                                if (jobLogger?.IsEnabled(Microsoft.Extensions.Logging.LogLevel.Error) == true)
+                                    jobLogger?.LogError(executionException, "{jobExecutingContext}", jobExecutingContext);
                             }
 
                             // 记录作业触发器运行信息

src/Admin/ThingsGateway.Furion/Schedule/Triggers/Trigger.Methods.cs

@@ -380,7 +380,7 @@ public partial class Trigger
     /// <summary>
     /// 带命名规则的数据库列名
     /// </summary>
-    private readonly ConcurrentDictionary<NamingConventions, string[]> _namingColumnNames = new();
+    private readonly NonBlockingDictionary<NamingConventions, string[]> _namingColumnNames = new();
 
     /// <summary>
     /// 获取数据库列名

src/Admin/ThingsGateway.Furion/SpecificationDocument/Builders/SpecificationDocumentBuilder.cs

@@ -83,11 +83,11 @@ public static class SpecificationDocumentBuilder
 
         // 初始化常量
         _groupOrderRegex = new Regex(@"@(?<order>[0-9]+$)");
-        GetActionGroupsCached = new ConcurrentDictionary<MethodInfo, IEnumerable<GroupExtraInfo>>();
-        GetControllerGroupsCached = new ConcurrentDictionary<Type, IEnumerable<GroupExtraInfo>>();
-        GetGroupOpenApiInfoCached = new ConcurrentDictionary<string, SpecificationOpenApiInfo>();
-        GetControllerTagCached = new ConcurrentDictionary<ControllerActionDescriptor, string>();
-        GetActionTagCached = new ConcurrentDictionary<ApiDescription, string>();
+        GetActionGroupsCached = new NonBlockingDictionary<MethodInfo, IEnumerable<GroupExtraInfo>>();
+        GetControllerGroupsCached = new NonBlockingDictionary<Type, IEnumerable<GroupExtraInfo>>();
+        GetGroupOpenApiInfoCached = new NonBlockingDictionary<string, SpecificationOpenApiInfo>();
+        GetControllerTagCached = new NonBlockingDictionary<ControllerActionDescriptor, string>();
+        GetActionTagCached = new NonBlockingDictionary<ApiDescription, string>();
 
         // 默认分组，支持多个逗号分割
         DocumentGroupExtras = new List<GroupExtraInfo> { ResolveGroupExtraInfo(_specificationDocumentSettings.DefaultGroupName) };
@@ -143,7 +143,7 @@ public static class SpecificationDocumentBuilder
     /// <summary>
     /// 获取分组信息缓存集合
     /// </summary>
-    private static readonly ConcurrentDictionary<string, SpecificationOpenApiInfo> GetGroupOpenApiInfoCached;
+    private static readonly NonBlockingDictionary<string, SpecificationOpenApiInfo> GetGroupOpenApiInfoCached;
 
     /// <summary>
     /// 获取分组配置信息
@@ -738,7 +738,7 @@ public static class SpecificationDocumentBuilder
     /// <summary>
     /// 获取控制器组缓存集合
     /// </summary>
-    private static readonly ConcurrentDictionary<Type, IEnumerable<GroupExtraInfo>> GetControllerGroupsCached;
+    private static readonly NonBlockingDictionary<Type, IEnumerable<GroupExtraInfo>> GetControllerGroupsCached;
 
     /// <summary>
     /// 获取控制器分组列表
@@ -773,7 +773,7 @@ public static class SpecificationDocumentBuilder
     /// <summary>
     /// <see cref="GetActionGroups(MethodInfo)"/> 缓存集合
     /// </summary>
-    private static readonly ConcurrentDictionary<MethodInfo, IEnumerable<GroupExtraInfo>> GetActionGroupsCached;
+    private static readonly NonBlockingDictionary<MethodInfo, IEnumerable<GroupExtraInfo>> GetActionGroupsCached;
 
     /// <summary>
     /// 获取动作方法分组列表
@@ -808,7 +808,7 @@ public static class SpecificationDocumentBuilder
     /// <summary>
     /// <see cref="GetActionTag(ApiDescription)"/> 缓存集合
     /// </summary>
-    private static readonly ConcurrentDictionary<ControllerActionDescriptor, string> GetControllerTagCached;
+    private static readonly NonBlockingDictionary<ControllerActionDescriptor, string> GetControllerTagCached;
 
     /// <summary>
     /// 获取控制器标签
@@ -835,7 +835,7 @@ public static class SpecificationDocumentBuilder
     /// <summary>
     /// <see cref="GetActionTag(ApiDescription)"/> 缓存集合
     /// </summary>
-    private static readonly ConcurrentDictionary<ApiDescription, string> GetActionTagCached;
+    private static readonly NonBlockingDictionary<ApiDescription, string> GetActionTagCached;
 
     /// <summary>
     /// 获取动作方法标签

src/Admin/ThingsGateway.Furion/UnifyResult/UnifyContext.cs

@@ -51,12 +51,12 @@ public static class UnifyContext
     /// <summary>
     /// 规范化结果提供器
     /// </summary>
-    internal static ConcurrentDictionary<string, UnifyMetadata> UnifyProviders = new();
+    internal static NonBlockingDictionary<string, UnifyMetadata> UnifyProviders = new();
 
     /// <summary>
     /// 规范化序列化配置
     /// </summary>
-    internal static ConcurrentDictionary<string, object> UnifySerializerSettings = new();
+    internal static NonBlockingDictionary<string, object> UnifySerializerSettings = new();
 
     /// <summary>
     /// 获取异常元数据

src/Admin/ThingsGateway.Furion/V5_Experience/Core/Extensions/ConcurrentDictionaryExtensions.cs

@@ -14,7 +14,7 @@ using System.Collections.Concurrent;
 namespace ThingsGateway.Extension;
 
 /// <summary>
-///     <see cref="ConcurrentDictionary{TKey, TValue}" /> 拓展类
+///     <see cref="NonBlockingDictionary{TKey, TValue}" /> 拓展类
 /// </summary>
 internal static class ConcurrentDictionaryExtensions
 {
@@ -24,7 +24,7 @@ internal static class ConcurrentDictionaryExtensions
     /// <typeparam name="TKey">字典键类型</typeparam>
     /// <typeparam name="TValue">字典值类型</typeparam>
     /// <param name="dictionary">
-    ///     <see cref="ConcurrentDictionary{TKey, TValue}" />
+    ///     <see cref="NonBlockingDictionary{TKey, TValue}" />
     /// </param>
     /// <param name="key">
     ///     <typeparamref name="TKey" />
@@ -36,7 +36,7 @@ internal static class ConcurrentDictionaryExtensions
     /// <returns>
     ///     <see cref="bool" />
     /// </returns>
-    internal static bool TryUpdate<TKey, TValue>(this ConcurrentDictionary<TKey, TValue> dictionary
+    internal static bool TryUpdate<TKey, TValue>(this NonBlockingDictionary<TKey, TValue> dictionary
         , TKey key
         , Func<TValue, TValue> updateFactory
         , out TValue? value)

src/Admin/ThingsGateway.Furion/V5_Experience/Core/Extensions/IDictionaryExtensions.cs

@@ -241,7 +241,7 @@ internal static class IDictionaryExtensions
     /// </summary>
     /// <remarks>其中键是由值通过给定的选择器函数生成的。</remarks>
     /// <param name="dictionary">
-    ///     <see cref="ConcurrentDictionary{TKey, TValue}" />
+    ///     <see cref="NonBlockingDictionary{TKey, TValue}" />
     /// </param>
     /// <param name="values">
     ///     <see cref="IEnumerable{T}" />
@@ -249,7 +249,7 @@ internal static class IDictionaryExtensions
     /// <param name="keySelector">键选择器</param>
     /// <typeparam name="TKey">字典键类型</typeparam>
     /// <typeparam name="TValue">字典值类型</typeparam>
-    internal static void TryAdd<TKey, TValue>(this ConcurrentDictionary<TKey, TValue> dictionary,
+    internal static void TryAdd<TKey, TValue>(this NonBlockingDictionary<TKey, TValue> dictionary,
         IEnumerable<TValue>? values, Func<TValue, TKey> keySelector)
         where TKey : notnull
     {

src/Admin/ThingsGateway.Furion/V5_Experience/Core/Options/CoreOptions.cs

@@ -21,20 +21,20 @@ internal sealed class CoreOptions
     /// <summary>
     ///     已注册的组件元数据集合
     /// </summary>
-    internal readonly ConcurrentDictionary<string, ComponentMetadata> _metadataOfRegistered;
+    internal readonly NonBlockingDictionary<string, ComponentMetadata> _metadataOfRegistered;
 
     /// <summary>
     ///     子选项集合
     /// </summary>
-    internal readonly ConcurrentDictionary<Type, object> _optionsInstances;
+    internal readonly NonBlockingDictionary<Type, object> _optionsInstances;
 
     /// <summary>
     ///     <inheritdoc cref="CoreOptions" />
     /// </summary>
     internal CoreOptions()
     {
-        _optionsInstances = new ConcurrentDictionary<Type, object>();
-        _metadataOfRegistered = new ConcurrentDictionary<string, ComponentMetadata>(StringComparer.OrdinalIgnoreCase);
+        _optionsInstances = new NonBlockingDictionary<Type, object>();
+        _metadataOfRegistered = new NonBlockingDictionary<string, ComponentMetadata>(StringComparer.OrdinalIgnoreCase);
 
         EntryComponentTypes = [];
     }

src/Admin/ThingsGateway.Furion/V5_Experience/Core/Reflection/ObjectPropertyGetter.cs

@@ -32,7 +32,7 @@ public sealed class ObjectPropertyGetter<T> where T : class
     /// <summary>
     ///     对象类型实例属性值访问器集合
     /// </summary>
-    internal readonly ConcurrentDictionary<string, Func<object, object?>> _propertyGetters = new();
+    internal readonly NonBlockingDictionary<string, Func<object, object?>> _propertyGetters = new();
 
     /// <summary>
     ///     <inheritdoc cref="ObjectPropertyGetter{T}" />

src/Admin/ThingsGateway.Furion/V5_Experience/Core/Reflection/ObjectPropertySetter.cs

@@ -32,7 +32,7 @@ public sealed class ObjectPropertySetter<T> where T : class
     /// <summary>
     ///     对象类型实例属性值设置器集合
     /// </summary>
-    internal readonly ConcurrentDictionary<string, Action<object, object?>> _propertySetters = new();
+    internal readonly NonBlockingDictionary<string, Action<object, object?>> _propertySetters = new();
 
     /// <summary>
     ///     <inheritdoc cref="ObjectPropertySetter{T}" />

src/Admin/ThingsGateway.Furion/V5_Experience/HttpRemote/Declarative/Builders/HttpDeclarativeBuilder.cs

@@ -27,7 +27,7 @@ public sealed class HttpDeclarativeBuilder
     /// <summary>
     ///     HTTP 声明式 <see cref="IHttpDeclarativeExtractor" /> 提取器集合
     /// </summary>
-    internal static readonly ConcurrentDictionary<Type, IHttpDeclarativeExtractor> _extractors = new([
+    internal static readonly NonBlockingDictionary<Type, IHttpDeclarativeExtractor> _extractors = new([
         new(typeof(BaseAddressDeclarativeExtractor), new BaseAddressDeclarativeExtractor()),
         new(typeof(ValidationDeclarativeExtractor), new ValidationDeclarativeExtractor()),
         new(typeof(AutoSetHostHeaderDeclarativeExtractor), new AutoSetHostHeaderDeclarativeExtractor()),
@@ -56,7 +56,7 @@ public sealed class HttpDeclarativeBuilder
     ///     HTTP 声明式 <see cref="IHttpDeclarativeExtractor" /> 提取器集合（冻结）
     /// </summary>
     /// <remarks>该集合用于确保某些 HTTP 声明式提取器始终位于最后。</remarks>
-    internal static readonly ConcurrentDictionary<Type, IFrozenHttpDeclarativeExtractor> _frozenExtractors = new([
+    internal static readonly NonBlockingDictionary<Type, IFrozenHttpDeclarativeExtractor> _frozenExtractors = new([
         new(typeof(MultipartDeclarativeExtractor), new MultipartDeclarativeExtractor()),
         new(typeof(HttpMultipartFormDataBuilderDeclarativeExtractor),
             new HttpMultipartFormDataBuilderDeclarativeExtractor()),

src/Admin/ThingsGateway.Furion/V5_Experience/HttpRemote/Delegates/ProfilerDelegatingHandler.cs

@@ -251,7 +251,8 @@ public sealed class ProfilerDelegatingHandler(ILogger<Logging> logger, IOptions<
         // 检查是否配置（注册）了日志程序
         if (remoteOptions.IsLoggingRegistered)
         {
-            logger.Log(remoteOptions.ProfilerLogLevel, "{message}", message);
+            if (logger?.IsEnabled(remoteOptions.ProfilerLogLevel) == true)
+                logger.Log(remoteOptions.ProfilerLogLevel, "{message}", message);
         }
         else
         {

src/Admin/ThingsGateway.Furion/V5_Experience/HttpRemote/Processors/MessagePackContentProcessor.cs

@@ -27,7 +27,7 @@ public class MessagePackContentProcessor : HttpContentProcessorBase
     /// <summary>
     ///     MessagePack 序列化器委托字典缓存
     /// </summary>
-    internal static readonly ConcurrentDictionary<Type, Func<object, byte[]>> _serializerCache = new();
+    internal static readonly NonBlockingDictionary<Type, Func<object, byte[]>> _serializerCache = new();
 
     /// <summary>
     ///     初始化 MessagePack 序列化器委托

src/Admin/ThingsGateway.NewLife.X/Caching/MemoryCache.cs

@@ -23,7 +23,7 @@ public class MemoryCache : Cache
 {
     #region 属性
     /// <summary>缓存核心</summary>
-    protected ConcurrentDictionary<String, CacheItem> _cache = new();
+    protected NonBlockingDictionary<String, CacheItem> _cache = new();
 
     /// <summary>容量。容量超标时，采用LRU机制删除，默认100_000</summary>
     public Int32 Capacity { get; set; } = 100_000;
@@ -379,7 +379,7 @@ public class MemoryCache : Cache
     /// <returns></returns>
     public override IDictionary<String, T> GetDictionary<T>(String key)
     {
-        var item = GetOrAddItem(key, k => new ConcurrentDictionary<String, T>());
+        var item = GetOrAddItem(key, k => new NonBlockingDictionary<String, T>());
         return item.Visit<IDictionary<String, T>>() ??
          throw new InvalidCastException($"Unable to convert the value of [{key}] from {item.TypeCode} to {typeof(IDictionary<String, T>)}");
     }

src/Admin/ThingsGateway.NewLife.X/Caching/Readme.MD

@@ -2,7 +2,7 @@
 后续例程与使用说明均以Redis为例，各缓存实现类似。  
 
 ### 内存缓存 MemoryCache
-MemoryCache核心是并发字典ConcurrentDictionary，由于省去了序列化和网络通信，使得它具有千万级超高性能。  
+MemoryCache核心是并发字典NonBlockingDictionary，由于省去了序列化和网络通信，使得它具有千万级超高性能。  
 MemoryCache支持过期时间，默认容量10万个，未过期key超过该值后，每60秒根据LRU清理溢出部分。  
 常用于进程内千万级以下数据缓存场景。  
 

src/Admin/ThingsGateway.NewLife.X/Collections/CollectionHelper.cs

@@ -44,7 +44,7 @@ public static class CollectionHelper
     {
         //if (collection == null) return null;
 
-        if (collection is ConcurrentDictionary<TKey, TValue> cdiv && cdiv.Keys is IList<TKey> list) return list;
+        if (collection is NonBlockingDictionary<TKey, TValue> cdiv && cdiv.Keys is IList<TKey> list) return list;
 
         if (collection.Count == 0) return [];
         lock (collection)
@@ -65,8 +65,8 @@ public static class CollectionHelper
     {
         //if (collection == null) return null;
 
-        //if (collection is ConcurrentDictionary<TKey, TValue> cdiv) return cdiv.Values as IList<TValue>;
-        if (collection is ConcurrentDictionary<TKey, TValue> cdiv && cdiv.Values is IList<TValue> list) return list;
+        //if (collection is NonBlockingDictionary<TKey, TValue> cdiv) return cdiv.Values as IList<TValue>;
+        if (collection is NonBlockingDictionary<TKey, TValue> cdiv && cdiv.Values is IList<TValue> list) return list;
 
         if (collection.Count == 0) return [];
         lock (collection)

src/Admin/ThingsGateway.NewLife.X/Collections/ConcurrentHashSet.cs

@@ -9,7 +9,7 @@ namespace ThingsGateway.NewLife.Collections;
 /// </remarks>
 public class ConcurrentHashSet<T> : IEnumerable<T> where T : notnull
 {
-    private readonly ConcurrentDictionary<T, Byte> _dic = new();
+    private readonly NonBlockingDictionary<T, Byte> _dic = new();
 
     /// <summary>是否空集合</summary>
     public Boolean IsEmpty => _dic.IsEmpty;

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/ConcurrentDictionary/DictionaryImpl.SnapshotImpl.cs

@@ -0,0 +1,77 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+#nullable disable
+
+namespace System.Collections.Concurrent
+{
+    internal abstract partial class DictionaryImpl<TKey, TKeyStore, TValue>
+        : DictionaryImpl<TKey, TValue>
+    {
+        internal override Snapshot GetSnapshot()
+        {
+            return new SnapshotImpl(this);
+        }
+
+        private class SnapshotImpl : Snapshot
+        {
+            private readonly DictionaryImpl<TKey, TKeyStore, TValue> _table;
+
+            public SnapshotImpl(DictionaryImpl<TKey, TKeyStore, TValue> dict)
+            {
+                this._table = dict;
+
+                // linearization point.
+                // if table is quiescent and has no copy in progress,
+                // we can simply iterate over its table.
+                while (_table._newTable != null)
+                {
+                    // there is a copy in progress, finish it and try again
+                    _table.HelpCopy(copy_all: true);
+                    this._table = (DictionaryImpl<TKey, TKeyStore, TValue>)this._table._topDict._table;
+                }
+            }
+
+            public override int Count => _table.Count;
+
+            public override bool MoveNext()
+            {
+                var entries = this._table._entries;
+                while (_idx < entries.Length)
+                {
+                    var nextEntry = entries[_idx++];
+
+                    if (nextEntry.value != null)
+                    {
+                        var nextKstore = nextEntry.key;
+                        if (nextKstore == null)
+                        {
+                            // slot was deleted.
+                            continue;
+                        }
+
+                        _curKey = _table.keyFromEntry(nextKstore);
+                        object nextV = _table.TryGetValue(_curKey);
+                        if (nextV != null)
+                        {
+                            _curValue = _table.FromObjectValue(nextV);
+                            return true;
+                        }
+                    }
+                }
+
+                _curKey = default;
+                _curValue = default;
+                return false;
+            }
+
+            public override void Reset()
+            {
+                _idx = 0;
+                _curKey = default;
+                _curValue = default;
+            }
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/ConcurrentDictionary/DictionaryImpl.cs

@@ -0,0 +1,93 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+#nullable disable
+
+using System.Runtime.CompilerServices;
+
+namespace System.Collections.Concurrent
+{
+    internal abstract class DictionaryImpl
+    {
+        internal enum ValueMatch
+        {
+            Any,            // sets new value unconditionally, used by index set and TryRemove(key)
+            NullOrDead,     // set value if original value is null or dead, used by Add/TryAdd
+            NotNullOrDead,  // set value if original value is alive, used by Remove
+            OldValue,       // sets new value if old value matches
+        }
+
+        internal sealed class Prime
+        {
+            internal object originalValue;
+
+            public Prime(object originalValue)
+            {
+                this.originalValue = originalValue;
+            }
+        }
+
+        internal static readonly object TOMBSTONE = new object();
+        internal static readonly Prime TOMBPRIME = new Prime(TOMBSTONE);
+        internal static readonly object NULLVALUE = new object();
+
+        // represents a trivially copied empty entry
+        // we insert it in the old table during rehashing
+        // to reduce chances that more entries are added
+        protected const int TOMBPRIMEHASH = 1 << 31;
+
+        // we cannot distigush zero keys from uninitialized state
+        // so we force them to have this special hash instead
+        protected const int ZEROHASH = 1 << 30;
+
+        // all regular hashes have both these bits set
+        // to be different from either 0, TOMBPRIMEHASH or ZEROHASH
+        // having only these bits set in a case of Ref key means that the slot is permanently deleted.
+        protected const int SPECIAL_HASH_BITS = TOMBPRIMEHASH | ZEROHASH;
+
+        // Heuristic to decide if we have reprobed toooo many times.  Running over
+        // the reprobe limit on a 'get' call acts as a 'miss'; on a 'put' call it
+        // can trigger a table resize.  Several places must have exact agreement on
+        // what the reprobe_limit is, so we share it here.
+        protected const int REPROBE_LIMIT = 4;
+        protected const int REPROBE_LIMIT_SHIFT = 8;
+
+        protected static int ReprobeLimit(int lenMask)
+        {
+            // 1/2 of table with some extra
+            return REPROBE_LIMIT + (lenMask >> REPROBE_LIMIT_SHIFT);
+        }
+
+        protected static bool EntryValueNullOrDead(object entryValue)
+        {
+            return entryValue == null || entryValue == TOMBSTONE;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        protected static int ReduceHashToIndex(int fullHash, int lenMask)
+        {
+            var h = (uint)fullHash;
+
+            // xor-shift some upper bits down, in case if variations are mostly in high bits
+            // and scatter the bits a little to break up clusters if hashes are periodic (like 42, 43, 44, ...)
+            // long clusters can cause long reprobes. small clusters are ok though.
+            h ^= h >> 15;
+            h ^= h >> 8;
+            h += (h >> 3) * 2654435769u;
+
+            return (int)h & lenMask;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal static object ToObjectValue<TValue>(TValue value)
+        {
+            if (default(TValue) != null)
+            {
+                return new Boxed<TValue>(value);
+            }
+
+            return (object)value ?? NULLVALUE;
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/ConcurrentDictionary/DictionaryImplBoxed.cs

@@ -0,0 +1,138 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+#nullable disable
+
+using System.Runtime.CompilerServices;
+
+namespace System.Collections.Concurrent
+{
+    internal sealed class DictionaryImplBoxed<TKey, TValue>
+            : DictionaryImpl<TKey, Boxed<TKey>, TValue>
+    {
+        internal DictionaryImplBoxed(int capacity, NonBlockingDictionary<TKey, TValue> topDict)
+            : base(capacity, topDict)
+        {
+        }
+
+        internal DictionaryImplBoxed(int capacity, DictionaryImplBoxed<TKey, TValue> other)
+            : base(capacity, other)
+        {
+        }
+
+        protected override bool TryClaimSlotForPut(ref Boxed<TKey> entryKey, TKey key)
+        {
+            var entryKeyValue = entryKey;
+            if (entryKeyValue == null)
+            {
+                entryKeyValue = Interlocked.CompareExchange(ref entryKey, new Boxed<TKey>(key), null);
+                if (entryKeyValue == null)
+                {
+                    // claimed a new slot
+                    this.allocatedSlotCount.Increment();
+                    return true;
+                }
+            }
+
+            return _keyComparer.Equals(key, entryKeyValue.Value);
+        }
+
+        protected override bool TryClaimSlotForCopy(ref Boxed<TKey> entryKey, Boxed<TKey> key)
+        {
+            var entryKeyValue = entryKey;
+            if (entryKeyValue == null)
+            {
+                entryKeyValue = Interlocked.CompareExchange(ref entryKey, key, null);
+                if (entryKeyValue == null)
+                {
+                    // claimed a new slot
+                    this.allocatedSlotCount.Increment();
+                    return true;
+                }
+            }
+
+            return _keyComparer.Equals(key.Value, entryKeyValue.Value);
+        }
+
+        protected override bool keyEqual(TKey key, Boxed<TKey> entryKey)
+        {
+            //NOTE: slots are claimed in two stages - claim a hash, then set a key
+            //      it is possible to observe a slot with a null key, but with hash already set
+            //      that is not a match since the key is not yet in the table
+            if (entryKey == null)
+            {
+                return false;
+            }
+
+            return _keyComparer.Equals(key, entryKey.Value);
+        }
+
+        protected override DictionaryImpl<TKey, Boxed<TKey>, TValue> CreateNew(int capacity)
+        {
+            return new DictionaryImplBoxed<TKey, TValue>(capacity, this);
+        }
+
+        protected override TKey keyFromEntry(Boxed<TKey> entryKey)
+        {
+            return entryKey.Value;
+        }
+    }
+
+#pragma warning disable CS0659 // Type overrides Object.Equals(object o) but does not override Object.GetHashCode()
+    internal class Boxed<T>
+    {
+        // 0 - allow writes, 1 - someone is writing, 2 frozen.
+        public int writeStatus;
+        public T Value;
+
+        public Boxed(T key)
+        {
+            this.Value = key;
+        }
+
+        public override bool Equals(object obj)
+        {
+            return EqualityComparer<T>.Default.Equals(this.Value, Unsafe.As<Boxed<T>>(obj).Value);
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TryVolatileWrite(T value)
+        {
+            if (Interlocked.CompareExchange(ref writeStatus, 1, 0) == 0)
+            {
+                Value = value;
+                Volatile.Write(ref writeStatus, 0);
+                return true;
+            }
+            return false;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TryCompareExchange(T oldValue, T newValue, out bool changed)
+        {
+            changed = false;
+            if (Interlocked.CompareExchange(ref writeStatus, 1, 0) != 0)
+            {
+                return false;
+            }
+
+            if (EqualityComparer<T>.Default.Equals(Value, oldValue))
+            {
+                Value = newValue;
+                changed = true;
+            }
+
+            Volatile.Write(ref writeStatus, 0);
+            return true;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal void Freeze()
+        {
+            // Wait for writers (1) to leave. Already 2 is ok, or set 0 -> 2.
+            while (Interlocked.CompareExchange(ref writeStatus, 2, 0) == 1) ;
+        }
+    }
+#pragma warning restore CS0659 // Type overrides Object.Equals(object o) but does not override Object.GetHashCode()
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/ConcurrentDictionary/DictionaryImplInt.cs

@@ -0,0 +1,143 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+namespace System.Collections.Concurrent
+{
+    internal sealed class DictionaryImplInt<TValue>
+                : DictionaryImpl<int, int, TValue>
+    {
+        internal DictionaryImplInt(int capacity, NonBlockingDictionary<int, TValue> topDict)
+            : base(capacity, topDict)
+        {
+        }
+
+        internal DictionaryImplInt(int capacity, DictionaryImplInt<TValue> other)
+            : base(capacity, other)
+        {
+        }
+
+        protected override bool TryClaimSlotForPut(ref int entryKey, int key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        protected override bool TryClaimSlotForCopy(ref int entryKey, int key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        private bool TryClaimSlot(ref int entryKey, int key)
+        {
+            var entryKeyValue = entryKey;
+            //zero keys are claimed via hash
+            if (entryKeyValue == 0 & key != 0)
+            {
+                entryKeyValue = Interlocked.CompareExchange(ref entryKey, key, 0);
+                if (entryKeyValue == 0)
+                {
+                    // claimed a new slot
+                    this.allocatedSlotCount.Increment();
+                    return true;
+                }
+            }
+
+            return key == entryKeyValue || _keyComparer.Equals(key, entryKeyValue);
+        }
+
+        protected override int hash(int key)
+        {
+            if (key == 0)
+            {
+                return ZEROHASH;
+            }
+
+            return base.hash(key);
+        }
+
+        protected override bool keyEqual(int key, int entryKey)
+        {
+            return key == entryKey || _keyComparer.Equals(key, entryKey);
+        }
+
+        protected override DictionaryImpl<int, int, TValue> CreateNew(int capacity)
+        {
+            return new DictionaryImplInt<TValue>(capacity, this);
+        }
+
+        protected override int keyFromEntry(int entryKey)
+        {
+            return entryKey;
+        }
+    }
+
+    internal sealed class DictionaryImplIntNoComparer<TValue>
+            : DictionaryImpl<int, int, TValue>
+    {
+        internal DictionaryImplIntNoComparer(int capacity, NonBlockingDictionary<int, TValue> topDict)
+            : base(capacity, topDict)
+        {
+        }
+
+        internal DictionaryImplIntNoComparer(int capacity, DictionaryImplIntNoComparer<TValue> other)
+            : base(capacity, other)
+        {
+        }
+
+        protected override bool TryClaimSlotForPut(ref int entryKey, int key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        protected override bool TryClaimSlotForCopy(ref int entryKey, int key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        private bool TryClaimSlot(ref int entryKey, int key)
+        {
+            var entryKeyValue = entryKey;
+            //zero keys are claimed via hash
+            if (entryKeyValue == 0 & key != 0)
+            {
+                entryKeyValue = Interlocked.CompareExchange(ref entryKey, key, 0);
+                if (entryKeyValue == 0)
+                {
+                    // claimed a new slot
+                    this.allocatedSlotCount.Increment();
+                    return true;
+                }
+            }
+
+            return key == entryKeyValue;
+        }
+
+        // inline the base implementation to devirtualize calls to hash and keyEqual
+        internal override object TryGetValue(int key)
+        {
+            return base.TryGetValue(key);
+        }
+
+        protected override int hash(int key)
+        {
+            return (key == 0) ?
+                ZEROHASH :
+                key | SPECIAL_HASH_BITS;
+        }
+
+        protected override bool keyEqual(int key, int entryKey)
+        {
+            return key == entryKey;
+        }
+
+        protected override DictionaryImpl<int, int, TValue> CreateNew(int capacity)
+        {
+            return new DictionaryImplIntNoComparer<TValue>(capacity, this);
+        }
+
+        protected override int keyFromEntry(int entryKey)
+        {
+            return entryKey;
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/ConcurrentDictionary/DictionaryImplLong.cs

@@ -0,0 +1,143 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+namespace System.Collections.Concurrent
+{
+    internal sealed class DictionaryImplLong<TValue>
+                : DictionaryImpl<long, long, TValue>
+    {
+        internal DictionaryImplLong(int capacity, NonBlockingDictionary<long, TValue> topDict)
+            : base(capacity, topDict)
+        {
+        }
+
+        internal DictionaryImplLong(int capacity, DictionaryImplLong<TValue> other)
+            : base(capacity, other)
+        {
+        }
+
+        protected override bool TryClaimSlotForPut(ref long entryKey, long key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        protected override bool TryClaimSlotForCopy(ref long entryKey, long key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        private bool TryClaimSlot(ref long entryKey, long key)
+        {
+            var entryKeyValue = entryKey;
+            //zero keys are claimed via hash
+            if (entryKeyValue == 0 && key != 0)
+            {
+                entryKeyValue = Interlocked.CompareExchange(ref entryKey, key, 0);
+                if (entryKeyValue == 0)
+                {
+                    // claimed a new slot
+                    this.allocatedSlotCount.Increment();
+                    return true;
+                }
+            }
+
+            return key == entryKeyValue || _keyComparer.Equals(key, entryKeyValue);
+        }
+
+        protected override int hash(long key)
+        {
+            if (key == 0)
+            {
+                return ZEROHASH;
+            }
+
+            return base.hash(key);
+        }
+
+        protected override bool keyEqual(long key, long entryKey)
+        {
+            return key == entryKey || _keyComparer.Equals(key, entryKey);
+        }
+
+        protected override DictionaryImpl<long, long, TValue> CreateNew(int capacity)
+        {
+            return new DictionaryImplLong<TValue>(capacity, this);
+        }
+
+        protected override long keyFromEntry(long entryKey)
+        {
+            return entryKey;
+        }
+    }
+
+    internal sealed class DictionaryImplLongNoComparer<TValue>
+            : DictionaryImpl<long, long, TValue>
+    {
+        internal DictionaryImplLongNoComparer(int capacity, NonBlockingDictionary<long, TValue> topDict)
+            : base(capacity, topDict)
+        {
+        }
+
+        internal DictionaryImplLongNoComparer(int capacity, DictionaryImplLongNoComparer<TValue> other)
+            : base(capacity, other)
+        {
+        }
+
+        protected override bool TryClaimSlotForPut(ref long entryKey, long key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        protected override bool TryClaimSlotForCopy(ref long entryKey, long key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        private bool TryClaimSlot(ref long entryKey, long key)
+        {
+            var entryKeyValue = entryKey;
+            //zero keys are claimed via hash
+            if (entryKeyValue == 0 && key != 0)
+            {
+                entryKeyValue = Interlocked.CompareExchange(ref entryKey, key, 0);
+                if (entryKeyValue == 0)
+                {
+                    // claimed a new slot
+                    this.allocatedSlotCount.Increment();
+                    return true;
+                }
+            }
+
+            return key == entryKeyValue;
+        }
+
+        // inline the base implementation to devirtualize calls to hash and keyEqual
+        internal override object TryGetValue(long key)
+        {
+            return base.TryGetValue(key);
+        }
+
+        protected override int hash(long key)
+        {
+            return (key == 0) ?
+                ZEROHASH :
+                key.GetHashCode() | SPECIAL_HASH_BITS;
+        }
+
+        protected override bool keyEqual(long key, long entryKey)
+        {
+            return key == entryKey;
+        }
+
+        protected override DictionaryImpl<long, long, TValue> CreateNew(int capacity)
+        {
+            return new DictionaryImplLongNoComparer<TValue>(capacity, this);
+        }
+
+        protected override long keyFromEntry(long entryKey)
+        {
+            return entryKey;
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/ConcurrentDictionary/DictionaryImplNint.cs

@@ -0,0 +1,143 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+namespace System.Collections.Concurrent
+{
+    internal sealed class DictionaryImplNint<TValue>
+                : DictionaryImpl<nint, nint, TValue>
+    {
+        internal DictionaryImplNint(int capacity, NonBlockingDictionary<nint, TValue> topDict)
+            : base(capacity, topDict)
+        {
+        }
+
+        internal DictionaryImplNint(int capacity, DictionaryImplNint<TValue> other)
+            : base(capacity, other)
+        {
+        }
+
+        protected override bool TryClaimSlotForPut(ref nint entryKey, nint key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        protected override bool TryClaimSlotForCopy(ref nint entryKey, nint key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        private bool TryClaimSlot(ref nint entryKey, nint key)
+        {
+            var entryKeyValue = entryKey;
+            //zero keys are claimed via hash
+            if (entryKeyValue == 0 && key != 0)
+            {
+                entryKeyValue = Interlocked.CompareExchange(ref entryKey, key, (nint)0);
+                if (entryKeyValue == 0)
+                {
+                    // claimed a new slot
+                    this.allocatedSlotCount.Increment();
+                    return true;
+                }
+            }
+
+            return key == entryKeyValue || _keyComparer.Equals(key, entryKeyValue);
+        }
+
+        protected override int hash(nint key)
+        {
+            if (key == 0)
+            {
+                return ZEROHASH;
+            }
+
+            return base.hash(key);
+        }
+
+        protected override bool keyEqual(nint key, nint entryKey)
+        {
+            return key == entryKey || _keyComparer.Equals(key, entryKey);
+        }
+
+        protected override DictionaryImpl<nint, nint, TValue> CreateNew(int capacity)
+        {
+            return new DictionaryImplNint<TValue>(capacity, this);
+        }
+
+        protected override nint keyFromEntry(nint entryKey)
+        {
+            return entryKey;
+        }
+    }
+
+    internal sealed class DictionaryImplNintNoComparer<TValue>
+            : DictionaryImpl<nint, nint, TValue>
+    {
+        internal DictionaryImplNintNoComparer(int capacity, NonBlockingDictionary<nint, TValue> topDict)
+            : base(capacity, topDict)
+        {
+        }
+
+        internal DictionaryImplNintNoComparer(int capacity, DictionaryImplNintNoComparer<TValue> other)
+            : base(capacity, other)
+        {
+        }
+
+        protected override bool TryClaimSlotForPut(ref nint entryKey, nint key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        protected override bool TryClaimSlotForCopy(ref nint entryKey, nint key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        private bool TryClaimSlot(ref nint entryKey, nint key)
+        {
+            var entryKeyValue = entryKey;
+            //zero keys are claimed via hash
+            if (entryKeyValue == 0 && key != 0)
+            {
+                entryKeyValue = Interlocked.CompareExchange(ref entryKey, key, (nint)0);
+                if (entryKeyValue == 0)
+                {
+                    // claimed a new slot
+                    this.allocatedSlotCount.Increment();
+                    return true;
+                }
+            }
+
+            return key == entryKeyValue;
+        }
+
+        // inline the base implementation to devirtualize calls to hash and keyEqual
+        internal override object TryGetValue(nint key)
+        {
+            return base.TryGetValue(key);
+        }
+
+        protected override int hash(nint key)
+        {
+            return (key == 0) ?
+                ZEROHASH :
+                key.GetHashCode() | SPECIAL_HASH_BITS;
+        }
+
+        protected override bool keyEqual(nint key, nint entryKey)
+        {
+            return key == entryKey;
+        }
+
+        protected override DictionaryImpl<nint, nint, TValue> CreateNew(int capacity)
+        {
+            return new DictionaryImplNintNoComparer<TValue>(capacity, this);
+        }
+
+        protected override nint keyFromEntry(nint entryKey)
+        {
+            return entryKey;
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/ConcurrentDictionary/DictionaryImplRef.cs

@@ -0,0 +1,95 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+#nullable disable
+
+using System.Diagnostics;
+using System.Runtime.CompilerServices;
+
+namespace System.Collections.Concurrent
+{
+    internal sealed class DictionaryImplRef<TKey, TKeyStore, TValue>
+            : DictionaryImpl<TKey, TKey, TValue>
+    {
+        internal DictionaryImplRef(int capacity, NonBlockingDictionary<TKey, TValue> topDict)
+            : base(capacity, topDict)
+        {
+            Debug.Assert(!typeof(TKey).IsValueType);
+        }
+
+        internal DictionaryImplRef(int capacity, DictionaryImplRef<TKey, TKeyStore, TValue> other)
+            : base(capacity, other)
+        {
+            Debug.Assert(!typeof(TKey).IsValueType);
+        }
+
+        protected override bool TryClaimSlotForPut(ref TKey entryKey, TKey key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        protected override bool TryClaimSlotForCopy(ref TKey entryKey, TKey key)
+        {
+            return TryClaimSlot(ref entryKey, key);
+        }
+
+        private bool TryClaimSlot(ref TKey entryKey, TKey key)
+        {
+            ref object keyLocation = ref Unsafe.As<TKey, object>(ref entryKey);
+            object entryKeyValue = keyLocation;
+            if (entryKeyValue == null)
+            {
+                entryKeyValue = Interlocked.CompareExchange(ref keyLocation, key, null);
+                if (entryKeyValue == null)
+                {
+                    // claimed a new slot
+                    this.allocatedSlotCount.Increment();
+                    return true;
+                }
+            }
+
+            return (object)key == entryKeyValue ||
+                _keyComparer.Equals(key, Unsafe.As<object, TKey>(ref entryKeyValue));
+        }
+
+        // inline the base implementation to devirtualize calls to hash and keyEqual
+        internal override object TryGetValue(TKey key)
+        {
+            return base.TryGetValue(key);
+        }
+
+        protected override int hash(TKey key)
+        {
+            return base.hash(key);
+        }
+
+        protected override bool keyEqual(TKey key, TKey entryKey)
+        {
+            if ((object)key == (object)entryKey)
+            {
+                return true;
+            }
+
+            //NOTE: slots are claimed in two stages - claim a hash, then set a key
+            //      it is possible to observe a slot with a null key, but with hash already set
+            //      that is not a match since the key is not yet in the table
+            if (entryKey == null)
+            {
+                return false;
+            }
+
+            return _keyComparer.Equals(entryKey, key);
+        }
+
+        protected override DictionaryImpl<TKey, TKey, TValue> CreateNew(int capacity)
+        {
+            return new DictionaryImplRef<TKey, TKeyStore, TValue>(capacity, this);
+        }
+
+        protected override TKey keyFromEntry(TKey entryKey)
+        {
+            return entryKey;
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/ConcurrentDictionary/DictionaryImpl`2.cs

@@ -0,0 +1,80 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+#nullable disable
+
+using System.Runtime.CompilerServices;
+
+namespace System.Collections.Concurrent
+{
+    internal abstract class DictionaryImpl<TKey, TValue>
+        : DictionaryImpl
+    {
+        private readonly bool _valueIsValueType = typeof(TValue).IsValueType;
+
+        internal IEqualityComparer<TKey> _keyComparer;
+
+        internal abstract void Clear();
+        internal abstract int Count { get; }
+
+        internal abstract object TryGetValue(TKey key);
+        internal abstract bool PutIfMatch(TKey key, TValue newVal, ref TValue oldValue, ValueMatch match);
+        internal abstract bool RemoveIfMatch(TKey key, ref TValue oldValue, ValueMatch match);
+        internal abstract TValue GetOrAdd(TKey key, Func<TKey, TValue> valueFactory);
+
+        internal abstract Snapshot GetSnapshot();
+
+        internal abstract class Snapshot
+        {
+            protected int _idx;
+            protected TKey _curKey;
+            protected TValue _curValue;
+
+            public abstract int Count { get; }
+            public abstract bool MoveNext();
+            public abstract void Reset();
+
+            internal DictionaryEntry Entry
+            {
+                get
+                {
+                    return new DictionaryEntry(_curKey, _curValue);
+                }
+            }
+
+            internal KeyValuePair<TKey, TValue> Current
+            {
+                get
+                {
+                    return new KeyValuePair<TKey, TValue>(this._curKey, _curValue);
+                }
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        protected TValue FromObjectValue(object obj)
+        {
+            // regular value type
+            if (default(TValue) != null)
+            {
+                return Unsafe.As<Boxed<TValue>>(obj).Value;
+            }
+
+            // null
+            if (obj == NULLVALUE)
+            {
+                return default(TValue);
+            }
+
+            // ref type
+            if (!_valueIsValueType)
+            {
+                return Unsafe.As<object, TValue>(ref obj);
+            }
+
+            // nullable
+            return (TValue)obj;
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/Counter/Counter32.cs

@@ -0,0 +1,204 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace System.Collections.Concurrent
+{
+    /// <summary>
+    /// Scalable 32bit counter that can be used from multiple threads.
+    /// </summary>
+    public sealed class Counter32 : CounterBase
+    {
+        private class Cell
+        {
+            [StructLayout(LayoutKind.Explicit, Size = CACHE_LINE * 2 - OBJ_HEADER_SIZE)]
+            public struct SpacedCounter
+            {
+                [FieldOffset(CACHE_LINE - OBJ_HEADER_SIZE)]
+                public int count;
+            }
+
+            public SpacedCounter counter;
+        }
+
+        // spaced out counters
+        private Cell[]? cells;
+
+        // default counter
+        private int count;
+
+        // delayed estimated count
+        private int lastCount;
+
+        /// <summary>
+        /// Returns the value of the counter at the time of the call.
+        /// </summary>
+        /// <remarks>
+        /// The value may miss in-progress updates if the counter is being concurrently modified.
+        /// </remarks>
+        public int Value
+        {
+            get
+            {
+                var count = this.count;
+                var cells = this.cells;
+
+                if (cells != null)
+                {
+                    for (int i = 0; i < cells.Length; i++)
+                    {
+                        var cell = cells[i];
+                        if (cell != null)
+                        {
+                            count += cell.counter.count;
+                        }
+                        else
+                        {
+                            break;
+                        }
+                    }
+                }
+
+                return count;
+            }
+        }
+
+        /// <summary>
+        /// Returns the approximate value of the counter at the time of the call.
+        /// </summary>
+        /// <remarks>
+        /// EstimatedValue could be significantly cheaper to obtain, but may be slightly delayed.
+        /// </remarks>
+        public int EstimatedValue
+        {
+            get
+            {
+                if (this.cells == null)
+                {
+                    return this.count;
+                }
+
+                var curTicks = (uint)Environment.TickCount;
+                // more than a millisecond passed?
+                if (curTicks != lastCountTicks)
+                {
+                    lastCountTicks = curTicks;
+                    lastCount = Value;
+                }
+
+                return lastCount;
+            }
+        }
+
+        /// <summary>
+        /// Increments the counter by 1.
+        /// </summary>
+        public void Increment()
+        {
+            int curCellCount = this.cellCount;
+            var drift = increment(ref GetCountRef(curCellCount));
+
+            if (drift != 0)
+            {
+                TryAddCell(curCellCount);
+            }
+        }
+
+        /// <summary>
+        /// Decrements the counter by 1.
+        /// </summary>
+        public void Decrement()
+        {
+            int curCellCount = this.cellCount;
+            var drift = decrement(ref GetCountRef(curCellCount));
+
+            if (drift != 0)
+            {
+                TryAddCell(curCellCount);
+            }
+        }
+
+        /// <summary>
+        /// Increments the counter by 'value'.
+        /// </summary>
+        public void Add(int value)
+        {
+            int curCellCount = this.cellCount;
+            var drift = add(ref GetCountRef(curCellCount), value);
+
+            if (drift != 0)
+            {
+                TryAddCell(curCellCount);
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private ref int GetCountRef(int curCellCount)
+        {
+            ref var countRef = ref count;
+
+            Cell[]? cells;
+            if ((cells = this.cells) != null && curCellCount > 1)
+            {
+                var cell = cells[GetIndex((uint)curCellCount)];
+                if (cell != null)
+                {
+                    countRef = ref cell.counter.count;
+                }
+            }
+
+            return ref countRef;
+        }
+
+        private static int increment(ref int val)
+        {
+            return -val - 1 + Interlocked.Increment(ref val);
+        }
+
+        private static int add(ref int val, int inc)
+        {
+            return -val - inc + Interlocked.Add(ref val, inc);
+        }
+
+        private static int decrement(ref int val)
+        {
+            return val - 1 - Interlocked.Decrement(ref val);
+        }
+
+        private void TryAddCell(int curCellCount)
+        {
+            if (curCellCount < s_MaxCellCount)
+            {
+                TryAddCellCore(curCellCount);
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        private void TryAddCellCore(int curCellCount)
+        {
+            var cells = this.cells;
+            if (cells == null)
+            {
+                var newCells = new Cell[s_MaxCellCount];
+                cells = Interlocked.CompareExchange(ref this.cells, newCells, null) ?? newCells;
+            }
+
+            if (cells[curCellCount] == null)
+            {
+                Interlocked.CompareExchange(ref cells[curCellCount], new Cell(), null);
+            }
+
+            if (this.cellCount == curCellCount)
+            {
+                Interlocked.CompareExchange(ref this.cellCount, curCellCount + 1, curCellCount);
+                //if (Interlocked.CompareExchange(ref this.cellCount, curCellCount + 1, curCellCount) == curCellCount)
+                //{
+                //    System.Console.WriteLine(curCellCount + 1);
+                //}
+            }
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/Counter/Counter64.cs

@@ -0,0 +1,203 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace System.Collections.Concurrent
+{
+    /// <summary>
+    /// Scalable 64bit counter that can be used from multiple threads.
+    /// </summary>
+    public sealed class Counter64 : CounterBase
+    {
+        private class Cell
+        {
+            [StructLayout(LayoutKind.Explicit, Size = CACHE_LINE * 2 - OBJ_HEADER_SIZE)]
+            public struct SpacedCounter
+            {
+                [FieldOffset(CACHE_LINE - OBJ_HEADER_SIZE)]
+                public long count;
+            }
+
+            public SpacedCounter counter;
+        }
+
+        // spaced out counters
+        private Cell[]? cells;
+
+        // default counter
+        private long count;
+
+        // delayed count
+        private long lastCount;
+
+        /// <summary>
+        /// Returns the value of the counter at the time of the call.
+        /// </summary>
+        /// <remarks>
+        /// The value may miss in-progress updates if the counter is being concurrently modified.
+        /// </remarks>
+        public long Value
+        {
+            get
+            {
+                var count = this.count;
+                var cells = this.cells;
+
+                if (cells != null)
+                {
+                    for (int i = 0; i < cells.Length; i++)
+                    {
+                        var cell = cells[i];
+                        if (cell != null)
+                        {
+                            count += cell.counter.count;
+                        }
+                        else
+                        {
+                            break;
+                        }
+                    }
+                }
+
+                return count;
+            }
+        }
+
+        /// <summary>
+        /// Returns the approximate value of the counter at the time of the call.
+        /// </summary>
+        /// <remarks>
+        /// EstimatedValue could be significantly cheaper to obtain, but may be slightly delayed.
+        /// </remarks>
+        public long EstimatedValue
+        {
+            get
+            {
+                if (this.cellCount == 0)
+                {
+                    return Value;
+                }
+
+                var curTicks = (uint)Environment.TickCount;
+                // more than a millisecond passed?
+                if (curTicks != lastCountTicks)
+                {
+                    lastCountTicks = curTicks;
+                    lastCount = Value;
+                }
+
+                return lastCount;
+            }
+        }
+
+        /// <summary>
+        /// Increments the counter by 1.
+        /// </summary>
+        public void Increment()
+        {
+            int curCellCount = this.cellCount;
+            var drift = increment(ref GetCountRef(curCellCount));
+
+            if (drift != 0)
+            {
+                TryAddCell(curCellCount);
+            }
+        }
+
+        /// <summary>
+        /// Decrements the counter by 1.
+        /// </summary>
+        public void Decrement()
+        {
+            int curCellCount = this.cellCount;
+            var drift = decrement(ref GetCountRef(curCellCount));
+
+            if (drift != 0)
+            {
+                TryAddCell(curCellCount);
+            }
+        }
+
+        /// <summary>
+        /// Increments the counter by 'value'.
+        /// </summary>
+        public void Add(int value)
+        {
+            int curCellCount = this.cellCount;
+            var drift = add(ref GetCountRef(curCellCount), value);
+
+            if (drift != 0)
+            {
+                TryAddCell(curCellCount);
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private ref long GetCountRef(int curCellCount)
+        {
+            ref var countRef = ref count;
+
+            Cell[]? cells;
+            if ((cells = this.cells) != null && curCellCount > 1)
+            {
+                var cell = cells[GetIndex((uint)curCellCount)];
+                if (cell != null)
+                {
+                    countRef = ref cell.counter.count;
+                }
+            }
+
+            return ref countRef;
+        }
+
+        private static long increment(ref long val)
+        {
+            return -val - 1 + Interlocked.Increment(ref val);
+        }
+
+        private static long add(ref long val, int inc)
+        {
+            return -val - inc + Interlocked.Add(ref val, inc);
+        }
+
+        private static long decrement(ref long val)
+        {
+            return val - 1 - Interlocked.Decrement(ref val);
+        }
+
+        private void TryAddCell(int curCellCount)
+        {
+            if (curCellCount < s_MaxCellCount)
+            {
+                TryAddCellCore(curCellCount);
+            }
+        }
+
+        private void TryAddCellCore(int curCellCount)
+        {
+            var cells = this.cells;
+            if (cells == null)
+            {
+                var newCells = new Cell[s_MaxCellCount];
+                cells = Interlocked.CompareExchange(ref this.cells, newCells, null) ?? newCells;
+            }
+
+            if (cells[curCellCount] == null)
+            {
+                Interlocked.CompareExchange(ref cells[curCellCount], new Cell(), null);
+            }
+
+            if (this.cellCount == curCellCount)
+            {
+                Interlocked.CompareExchange(ref this.cellCount, curCellCount + 1, curCellCount);
+                //if (Interlocked.CompareExchange(ref this.cellCount, curCellCount + 1, curCellCount) == curCellCount)
+                //{
+                //    System.Console.WriteLine(curCellCount + 1);
+                //}
+            }
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/Counter/CounterBase.cs

@@ -0,0 +1,38 @@
+// Copyright (c) Vladimir Sadov. All rights reserved.
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+
+using System.Runtime.CompilerServices;
+
+namespace System.Collections.Concurrent
+{
+    /// <summary>
+    /// Scalable counter base.
+    /// </summary>
+    public class CounterBase
+    {
+        private protected const int CACHE_LINE = 64;
+        private protected const int OBJ_HEADER_SIZE = 8;
+
+        private protected static readonly int s_MaxCellCount = Util.AlignToPowerOfTwo(Environment.ProcessorCount) + 1;
+
+        // how many cells we have
+        private protected int cellCount;
+
+        // delayed count time
+        private protected uint lastCountTicks;
+
+        private protected CounterBase()
+        {
+            // touch static
+            _ = s_MaxCellCount;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private protected unsafe static int GetIndex(uint cellCount)
+        {
+            nuint addr = (nuint)(&cellCount);
+            return (int)(addr % cellCount);
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/NonBlockingDictionary/Util.cs

@@ -0,0 +1,21 @@
+using System.Diagnostics;
+
+namespace System.Collections.Concurrent
+{
+    internal static class Util
+    {
+        // returns 2^x >= size
+        internal static int AlignToPowerOfTwo(int size)
+        {
+            Debug.Assert(size > 0);
+
+            size--;
+            size |= size >> 1;
+            size |= size >> 2;
+            size |= size >> 4;
+            size |= size >> 8;
+            size |= size >> 16;
+            return size + 1;
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Collections/ObjectPool.cs

@@ -31,8 +31,8 @@ public class ObjectPool<T> : DisposeBase, IPool<T> where T : notnull
     /// <summary>最小个数。默认1</summary>
     public Int32 Min { get; set; } = 1;
 
-    /// <summary>空闲清理时间。最小个数之上的资源超过空闲时间时被清理，默认10s</summary>
-    public Int32 IdleTime { get; set; } = 10;
+    /// <summary>空闲清理时间。最小个数之上的资源超过空闲时间时被清理，默认60s</summary>
+    public Int32 IdleTime { get; set; } = 60;
 
     /// <summary>完全空闲清理时间。最小个数之下的资源超过空闲时间时被清理，默认0s永不清理</summary>
     public Int32 AllIdleTime { get; set; } = 0;
@@ -44,7 +44,7 @@ public class ObjectPool<T> : DisposeBase, IPool<T> where T : notnull
     private readonly ConcurrentQueue<Item> _free2 = new();
 
     /// <summary>借出去的放在这</summary>
-    private readonly ConcurrentDictionary<T, Item> _busy = new();
+    private readonly NonBlockingDictionary<T, Item> _busy = new();
 
     //private readonly Object SyncRoot = new();
     #endregion
@@ -126,9 +126,7 @@ public class ObjectPool<T> : DisposeBase, IPool<T> where T : notnull
                 if (Max > 0 && count >= Max)
                 {
                     var msg = $"申请失败，已有 {count:n0} 达到或超过最大值 {Max:n0}";
-
                     WriteLog("Acquire Max " + msg);
-
                     throw new Exception(Name + " " + msg);
                 }
 
@@ -268,7 +266,7 @@ public class ObjectPool<T> : DisposeBase, IPool<T> where T : notnull
         {
             if (_timer != null) return;
 
-            _timer = new TimerX(Work, null, 5000, 5000) { Async = true };
+            _timer = new TimerX(Work, null, 60000, 60000) { Async = true };
         }
     }
 
@@ -281,7 +279,7 @@ public class ObjectPool<T> : DisposeBase, IPool<T> where T : notnull
         var count = 0;
 
         // 清理过期不还。避免有借没还
-        if (!_busy.IsEmpty)
+        if (AllIdleTime > 0 && !_busy.IsEmpty)
         {
             var exp = TimerX.Now.AddSeconds(-AllIdleTime);
             foreach (var item in _busy)

src/Admin/ThingsGateway.NewLife.X/Collections/ObjectPoolLock.cs

@@ -0,0 +1,262 @@
+using ThingsGateway.NewLife.Log;
+using ThingsGateway.NewLife.Reflection;
+
+namespace ThingsGateway.NewLife.Collections;
+
+/// <summary>资源池。支持空闲释放，主要用于数据库连接池和网络连接池</summary>
+/// <remarks>
+/// 文档 https://newlifex.com/core/object_pool
+/// </remarks>
+/// <typeparam name="T"></typeparam>
+public class ObjectPoolLock<T> : DisposeBase, IPool<T> where T : class
+{
+    #region 属性
+    /// <summary>名称</summary>
+    public String Name { get; set; }
+
+    private Int32 _FreeCount;
+    /// <summary>空闲个数</summary>
+    public Int32 FreeCount => _FreeCount;
+
+    private Int32 _BusyCount;
+    /// <summary>繁忙个数</summary>
+    public Int32 BusyCount => _BusyCount;
+
+    /// <summary>最大个数。默认0，0表示无上限</summary>
+    public Int32 Max { get; set; } = 0;
+
+    /// <summary>最小个数。默认1</summary>
+    public Int32 Min { get; set; } = 1;
+
+    private readonly object _syncRoot = new();
+
+    /// <summary>基础空闲集合。只保存最小个数，最热部分</summary>
+    private readonly Stack<T> _free = new();
+
+    /// <summary>扩展空闲集合。保存最小个数以外部分</summary>
+    private readonly Queue<T> _free2 = new();
+
+    /// <summary>借出去的放在这</summary>
+    private readonly HashSet<T> _busy = new();
+
+    //private readonly Object SyncRoot = new();
+    #endregion
+
+    #region 构造
+    /// <summary>实例化一个资源池</summary>
+    public ObjectPoolLock()
+    {
+        var str = GetType().Name;
+        if (str.Contains('`')) str = str.Substring(null, "`");
+        if (str != "Pool")
+            Name = str;
+        else
+            Name = $"Pool<{typeof(T).Name}>";
+
+    }
+    ~ObjectPoolLock()
+    {
+        this.TryDispose();
+    }
+    /// <summary>销毁</summary>
+    /// <param name="disposing"></param>
+    protected override void Dispose(Boolean disposing)
+    {
+        base.Dispose(disposing);
+
+        WriteLog($"Dispose {typeof(T).FullName} FreeCount={FreeCount:n0} BusyCount={BusyCount:n0}");
+
+        Clear();
+    }
+
+    private volatile Boolean _inited;
+    private void Init()
+    {
+        if (_inited) return;
+
+        lock (lockThis)
+        {
+            if (_inited) return;
+            _inited = true;
+
+            WriteLog($"Init {typeof(T).FullName} Min={Min} Max={Max}");
+        }
+    }
+    #endregion
+
+    #region 主方法
+    /// <summary>借出</summary>
+    /// <returns></returns>
+    public virtual T Get()
+    {
+        T? pi = null;
+        do
+        {
+            lock (_syncRoot)
+            {
+                if (_free.Count > 0)
+                {
+                    pi = _free.Pop();
+                    _FreeCount--;
+                }
+                else if (_free2.Count > 0)
+                {
+                    pi = _free2.Dequeue();
+                    _FreeCount--;
+                }
+                else
+                {
+                    var count = BusyCount;
+                    if (Max > 0 && count >= Max)
+                    {
+                        var msg = $"申请失败，已有 {count:n0} 达到或超过最大值 {Max:n0}";
+                        WriteLog("Acquire Max " + msg);
+                        throw new Exception(Name + " " + msg);
+                    }
+
+                    pi = OnCreate();
+                    if (count == 0) Init();
+
+#if DEBUG
+                    WriteLog("Acquire Create Free={0} Busy={1}", FreeCount, count + 1);
+#endif
+                }
+            }
+
+            // 如果拿到的对象不可用，则重新借
+        } while (pi == null || !OnGet(pi));
+
+        lock (_syncRoot)
+        {
+            // 加入繁忙集合
+            _busy.Add(pi);
+
+            _BusyCount++;
+        }
+        return pi;
+    }
+
+    /// <summary>借出时是否可用</summary>
+    /// <param name="value"></param>
+    /// <returns></returns>
+    protected virtual Boolean OnGet(T value) => true;
+
+    /// <summary>申请资源包装项，Dispose时自动归还到池中</summary>
+    /// <returns></returns>
+    public PoolItem<T> GetItem() => new(this, Get());
+
+    /// <summary>归还</summary>
+    /// <param name="value"></param>
+    public virtual Boolean Return(T value)
+    {
+        if (value == null) return false;
+        lock (_syncRoot)
+        {
+            // 从繁忙队列找到并移除缓存项
+            if (!_busy.Remove(value))
+            {
+#if DEBUG
+                WriteLog("Return Error");
+#endif
+
+                return false;
+            }
+
+            _BusyCount--;
+        }
+
+        // 是否可用
+        if (!OnReturn(value))
+        {
+            return false;
+        }
+
+        if (value is DisposeBase db && db.Disposed)
+        {
+            return false;
+        }
+        lock (_syncRoot)
+        {
+            if (_FreeCount < Min)
+                _free.Push(value);
+            else
+                _free2.Enqueue(value);
+            _FreeCount++;
+        }
+
+        return true;
+    }
+
+    /// <summary>归还时是否可用</summary>
+    /// <param name="value"></param>
+    /// <returns></returns>
+    protected virtual Boolean OnReturn(T value) => true;
+
+    /// <summary>清空已有对象</summary>
+    public virtual Int32 Clear()
+    {
+        var count = _FreeCount + _BusyCount;
+
+        //_busy.Clear();
+        //_BusyCount = 0;
+
+        //_free.Clear();
+        //while (_free2.TryDequeue(out var rs)) ;
+        //_FreeCount = 0;
+
+        lock (_syncRoot)
+        {
+            count = _FreeCount + _BusyCount;
+
+            while (_free.Count > 0)
+            {
+                var pi = _free.Pop();
+                OnDispose(pi);
+            }
+
+            while (_free2.Count > 0)
+            {
+                var pi = _free2.Dequeue();
+                OnDispose(pi);
+            }
+
+            _FreeCount = 0;
+
+            foreach (var item in _busy)
+            {
+                OnDispose(item);
+            }
+            _busy.Clear();
+            _BusyCount = 0;
+        }
+
+        return count;
+    }
+
+    /// <summary>销毁</summary>
+    /// <param name="value"></param>
+    protected virtual void OnDispose(T? value) => value.TryDispose();
+    #endregion
+
+    #region 重载
+    /// <summary>创建实例</summary>
+    /// <returns></returns>
+    protected virtual T? OnCreate() => (T?)typeof(T).CreateInstance();
+    #endregion
+    protected object lockThis = new();
+
+    #region 日志
+    /// <summary>日志</summary>
+    public ILog Log { get; set; } = Logger.Null;
+
+    /// <summary>写日志</summary>
+    /// <param name="format"></param>
+    /// <param name="args"></param>
+    public void WriteLog(String format, params Object?[] args)
+    {
+        if (Log?.Enable != true) return;
+
+        Log.Info(Name + "." + format, args);
+    }
+    #endregion
+}

src/Admin/ThingsGateway.NewLife.X/Collections/ValueStopwatch.cs

@@ -0,0 +1,48 @@
+namespace ThingsGateway.NewLife.Collections;
+
+
+using System;
+using System.Diagnostics;
+
+internal struct ValueStopwatch
+{
+#if !NET7_0_OR_GREATER
+    private static readonly double TimestampToTicks = TimeSpan.TicksPerSecond / (double)Stopwatch.Frequency;
+#endif
+
+    private readonly long _startTimestamp;
+
+    public bool IsActive => _startTimestamp != 0;
+
+    private ValueStopwatch(long startTimestamp)
+    {
+        _startTimestamp = startTimestamp;
+    }
+
+    public static ValueStopwatch StartNew() => new ValueStopwatch(Stopwatch.GetTimestamp());
+
+    public static TimeSpan GetElapsedTime(long startingTimestamp, long endingTimestamp)
+    {
+#if !NET7_0_OR_GREATER
+        var timestampDelta = endingTimestamp - startingTimestamp;
+        var ticks = (long)(TimestampToTicks * timestampDelta);
+        return new TimeSpan(ticks);
+#else
+        return Stopwatch.GetElapsedTime(startingTimestamp, endingTimestamp);
+#endif
+    }
+
+    public TimeSpan GetElapsedTime()
+    {
+        // Start timestamp can't be zero in an initialized ValueStopwatch. It would have to be literally the first thing executed when the machine boots to be 0.
+        // So it being 0 is a clear indication of default(ValueStopwatch)
+        if (!IsActive)
+        {
+            throw new InvalidOperationException("An uninitialized, or 'default', ValueStopwatch cannot be used to get elapsed time.");
+        }
+
+        var end = Stopwatch.GetTimestamp();
+
+        return GetElapsedTime(_startTimestamp, end);
+    }
+}

src/Admin/ThingsGateway.NewLife.X/Common/ExpiringDictionary.cs

@@ -5,30 +5,103 @@ namespace ThingsGateway.NewLife;
 
 public class ExpiringDictionary<TKey, TValue> : IDisposable
 {
-    private ConcurrentDictionary<TKey, TValue> _dict = new();
-    private readonly TimerX _cleanupTimer;
-
-    public ExpiringDictionary(int cleanupInterval = 60000)
+    /// <summary>缓存项</summary>
+    public class CacheItem
     {
-        _cleanupTimer = new TimerX(Clear, null, cleanupInterval, cleanupInterval) { Async = true };
+        private TValue? _value;
+        /// <summary>数值</summary>
+        public TValue? Value { get => _value; }
+
+        /// <summary>过期时间。系统启动以来的毫秒数</summary>
+        public Int64 ExpiredTime { get; set; }
+
+        /// <summary>是否过期</summary>
+        public Boolean Expired => ExpiredTime <= Runtime.TickCount64;
+
+        /// <summary>访问时间</summary>
+        public Int64 VisitTime { get; private set; }
+
+        /// <summary>构造缓存项</summary>
+        /// <param name="value"></param>
+        /// <param name="expire"></param>
+        public CacheItem(TValue? value, Int32 expire) => Set(value, expire);
+
+        /// <summary>设置数值和过期时间</summary>
+        /// <param name="value"></param>
+        /// <param name="expire">过期时间，秒</param>
+        public void Set(TValue value, Int32 expire)
+        {
+            _value = value;
+
+            var now = VisitTime = Runtime.TickCount64;
+            if (expire <= 0)
+                ExpiredTime = Int64.MaxValue;
+            else
+                ExpiredTime = now + expire * 1000L;
+        }
+
+        /// <summary>更新访问时间并返回数值</summary>
+        /// <returns></returns>
+        public TValue? Visit()
+        {
+            VisitTime = Runtime.TickCount64;
+            var rs = _value;
+            if (rs == null) return default;
+
+            return rs;
+        }
+    }
+    private NonBlockingDictionary<TKey, CacheItem> _dict;
+
+    private readonly TimerX _cleanupTimer;
+    private int defaultExpire = 60;
+    IEqualityComparer<TKey>? comparer;
+    public ExpiringDictionary(int expire = 60, IEqualityComparer<TKey>? comparer = null)
+    {
+        defaultExpire = expire;
+        this.comparer = comparer;
+        _dict = new NonBlockingDictionary<TKey, CacheItem>(comparer);
+
+        _cleanupTimer = new TimerX(TimerClear, null, 60000, 60000) { Async = true };
     }
 
-    public void TryAdd(TKey key, TValue value)
+    public bool TryAdd(TKey key, TValue value)
     {
-        _dict.TryAdd(key, value);
+        if (_dict.TryGetValue(key, out var item))
+        {
+            if (!item.Expired) return false;
+            item.Set(value, defaultExpire);
+            return true;
+        }
+        return _dict.TryAdd(key, new CacheItem(value, defaultExpire));
     }
 
     public bool TryGetValue(TKey key, out TValue value)
     {
-        return _dict.TryGetValue(key, out value);
+        value = default;
+
+        // 没有值，直接结束
+        if (!_dict.TryGetValue(key, out var item) || item == null) return false;
+
+        // 得到已有值
+        value = item.Visit();
+
+        // 是否未过期的有效值
+        return !item.Expired;
     }
     public TValue GetOrAdd(TKey key, Func<TKey, TValue> func)
     {
-        return _dict.GetOrAdd(key, func);
-    }
-    public TValue GetOrAdd(TKey key, TValue value)
-    {
-        return _dict.GetOrAdd(key, value);
+        CacheItem? item = null;
+        do
+        {
+            if (_dict.TryGetValue(key, out item) && item != null) return item.Visit();
+
+            item ??= new CacheItem(func(key), defaultExpire);
+        }
+        while (!_dict.TryAdd(key, item));
+
+        return item.Visit();
+
     }
 
     public bool TryRemove(TKey key) => _dict.TryRemove(key, out _);
@@ -38,13 +111,38 @@ public class ExpiringDictionary<TKey, TValue> : IDisposable
     private void Clear(object? state)
     {
         var data = _dict;
-        _dict = new();
+        _dict = new(comparer);
         data.Clear();
     }
+    private void TimerClear(object? state)
+    {
 
+        var dic = _dict;
+        if (dic.IsEmpty) return;
+
+        // 60分钟之内过期的数据，进入LRU淘汰
+        var now = Runtime.TickCount64;
+
+        // 这里先计算，性能很重要
+        var toDels = new List<TKey>();
+        foreach (var item in dic)
+        {
+            // 已过期，准备删除
+            var ci = item.Value;
+            if (ci.ExpiredTime <= now)
+                toDels.Add(item.Key);
+        }
+
+        // 确认删除
+        foreach (var item in toDels)
+        {
+            _dict.Remove(item);
+        }
+    }
     public void Dispose()
     {
         _dict.Clear();
         _cleanupTimer.Dispose();
     }
 }
+

src/Admin/ThingsGateway.NewLife.X/Common/FastMapper.cs

@@ -13,8 +13,8 @@ public class FastMapperOption
 public static class FastMapper
 {
     // 泛型 + 非泛型共用缓存
-    private static readonly ConcurrentDictionary<(Type Source, Type Target), Delegate> _mapCache
-        = new ConcurrentDictionary<(Type, Type), Delegate>();
+    private static readonly NonBlockingDictionary<(Type Source, Type Target), Delegate> _mapCache
+        = new NonBlockingDictionary<(Type, Type), Delegate>();
 
     #region 泛型入口
     public static TTarget Mapper<TSource, TTarget>(TSource source, FastMapperOption option = null)

src/Admin/ThingsGateway.NewLife.X/Common/LinkedCancellationTokenSourceCache.cs

@@ -8,7 +8,7 @@
 //  QQ群：605534569
 //------------------------------------------------------------------------------
 
-namespace ThingsGateway.Foundation;
+namespace ThingsGateway.NewLife;
 
 public class LinkedCancellationTokenSourceCache : IDisposable
 {
@@ -63,6 +63,7 @@ public class LinkedCancellationTokenSourceCache : IDisposable
             _cachedCts?.Dispose();
             _cachedCts = null!;
         }
+        GC.SuppressFinalize(this);
     }
 }
 

src/Admin/ThingsGateway.NewLife.X/Common/ReusableCancellationTokenSource.cs

@@ -10,13 +10,18 @@
 //  感谢您的下载和使用
 //------------------------------------------------------------------------------
 
-namespace ThingsGateway.Foundation;
+namespace ThingsGateway.NewLife;
 
 using System;
 using System.Threading;
 
 public sealed class ReusableCancellationTokenSource : IDisposable
 {
+    ~ReusableCancellationTokenSource()
+    {
+        Dispose();
+    }
+
     private readonly Timer _timer;
     private CancellationTokenSource? _cts;
 
@@ -29,11 +34,17 @@ public sealed class ReusableCancellationTokenSource : IDisposable
 
     private void OnTimeout(object? state)
     {
-        TimeoutStatus = true;
+        try
+        {
+            TimeoutStatus = true;
 
-        if (_cts?.IsCancellationRequested == false)
-            _cts?.Cancel();
+            if (_cts?.IsCancellationRequested == false)
+                _cts?.Cancel();
+        }
+        catch
+        {
 
+        }
     }
 
     private readonly LinkedCancellationTokenSourceCache _linkedCtsCache = new();
@@ -41,7 +52,7 @@ public sealed class ReusableCancellationTokenSource : IDisposable
     /// <summary>
     /// 获取一个 CTS，并启动超时
     /// </summary>
-    public CancellationTokenSource GetTokenSource(long timeout, CancellationToken external1 = default, CancellationToken external2 = default, CancellationToken external3 = default)
+    public CancellationToken GetTokenSource(long timeout, CancellationToken external1 = default, CancellationToken external2 = default, CancellationToken external3 = default)
     {
         TimeoutStatus = false;
 
@@ -51,7 +62,7 @@ public sealed class ReusableCancellationTokenSource : IDisposable
         // 启动 Timer
         _timer.Change(timeout, Timeout.Infinite);
 
-        return _cts;
+        return _cts.Token;
     }
 
 
@@ -65,15 +76,16 @@ public sealed class ReusableCancellationTokenSource : IDisposable
     /// </summary>
     public void Cancel()
     {
-        _cts?.SafeCancel();
+        try { _cts?.Cancel(); } catch { }
     }
 
     public void Dispose()
     {
-        _cts?.SafeCancel();
-        _cts?.SafeDispose();
-        _linkedCtsCache.SafeDispose();
-        _timer.SafeDispose();
+        try { _cts?.Cancel(); } catch { }
+        try { _cts?.Dispose(); } catch { }
+        try { _linkedCtsCache?.Dispose(); } catch { }
+        try { _timer?.Dispose(); } catch { }
+        GC.SuppressFinalize(this);
     }
 }
 

src/Admin/ThingsGateway.NewLife.X/Common/WaitLock.cs

@@ -8,7 +8,7 @@
 //  QQ群：605534569
 //------------------------------------------------------------------------------
 
-using ThingsGateway.NewLife.Log;
+using ThingsGateway.NewLife.Collections;
 
 namespace ThingsGateway.NewLife;
 
@@ -92,21 +92,119 @@ public sealed class WaitLock : IDisposable
     /// </summary>
     public Task WaitAsync(CancellationToken cancellationToken = default)
     {
-        return _waiterLock.WaitAsync(cancellationToken);
+#if NET6_0_OR_GREATER
+        if (cancellationToken.CanBeCanceled)
+            return WaitUntilCountOrTimeoutAsync(_waiterLock.WaitAsync(Timeout.Infinite, CancellationToken.None), Timeout.Infinite, cancellationToken);
+        //return WaitUntilAsync2(_waiterLock.WaitAsync(Timeout.Infinite, CancellationToken.None), Timeout.Infinite, cancellationToken);
+        else
+            return _waiterLock.WaitAsync(Timeout.Infinite, CancellationToken.None);
+
+#else
+        return _waiterLock.WaitAsync(Timeout.Infinite, cancellationToken);
+#endif
     }
 
+#if NET6_0_OR_GREATER
+
+
+    //private ObjectPoolLock<ReusableCancellationTokenSource> _reusableTimeouts = new();
+
+    /// <summary>Performs the asynchronous wait.</summary>
+    /// <param name="asyncWaiter">The asynchronous waiter.</param>
+    /// <param name="millisecondsTimeout">The timeout.</param>
+    /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns>The task to return to the caller.</returns>
+    private Task<bool> WaitUntilCountOrTimeoutAsync(Task<bool> asyncWaiter, int millisecondsTimeout, CancellationToken cancellationToken)
+    {
+        if (millisecondsTimeout == Timeout.Infinite)
+        {
+            return (asyncWaiter.WaitAsync(cancellationToken));
+        }
+        else
+        {
+            return (asyncWaiter.WaitAsync(TimeSpan.FromMilliseconds(millisecondsTimeout), cancellationToken));
+        }
+    }
+
+    //private Task WaitUntilAsync2(Task task, int timeoutMs, CancellationToken token)
+    //{
+    //    if (task.IsCompleted) return task;
+
+    //    var tcs = new TaskCompletionSource<object?>(TaskCreationOptions.RunContinuationsAsynchronously);
+    //    var reusableTimeout = _reusableTimeouts.Get();
+
+    //    CancellationTokenRegistration ctr = default;
+
+    //    // 超时 + 取消 Token
+    //    if (timeoutMs != Timeout.Infinite || token.CanBeCanceled)
+    //    {
+    //        var ctsToken = reusableTimeout.GetTokenSource(timeoutMs, token);
+
+    //        ctr = ctsToken.Register(static (state, token2) =>
+    //        {
+    //            var (tcs2, ctoken) = ((TaskCompletionSource<object?>, CancellationToken))state!;
+    //            if (ctoken.IsCancellationRequested)
+    //                tcs2.TrySetCanceled(ctoken);
+    //            else
+    //                tcs2.TrySetException(new TimeoutException("The operation has timed out."));
+    //        }, (tcs, token));
+    //    }
+
+    //    if (task.IsCompleted)
+    //    {
+    //        _reusableTimeouts.Return(reusableTimeout);
+    //        ctr.Dispose();
+    //        return task;
+    //    }
+
+    //    // 监听原始任务
+    //    task.ContinueWith(static (t, state) =>
+    //    {
+    //        var (tcs2, ctr2, ctsPool, cts) = ((TaskCompletionSource<object?>, CancellationTokenRegistration, ObjectPoolLock<ReusableCancellationTokenSource>, ReusableCancellationTokenSource))state!;
+    //        try
+    //        {
+    //            if (t.IsCanceled)
+    //                tcs2.TrySetCanceled();
+    //            else if (t.IsFaulted)
+    //                tcs2.TrySetException(t.Exception!.InnerExceptions);
+    //            else
+    //                tcs2.TrySetResult(null);
+    //        }
+    //        finally
+    //        {
+    //            ctsPool.Return(cts);
+    //            ctr2.Dispose();
+    //        }
+    //    }, (tcs, ctr, _reusableTimeouts, reusableTimeout), CancellationToken.None, TaskContinuationOptions.ExecuteSynchronously, TaskScheduler.Default);
+
+    //    return tcs.Task;
+    //}
+
+#endif
+
     /// <summary>
     /// 进入锁
     /// </summary>
     public Task<bool> WaitAsync(int millisecondsTimeout, CancellationToken cancellationToken = default)
     {
+#if NET6_0_OR_GREATER
+        if (cancellationToken.CanBeCanceled || millisecondsTimeout != Timeout.Infinite)
+            return WaitUntilCountOrTimeoutAsync(_waiterLock.WaitAsync(Timeout.Infinite, CancellationToken.None), millisecondsTimeout, cancellationToken);
+        else
+            return _waiterLock.WaitAsync(Timeout.Infinite, CancellationToken.None);
+
+#else
         return _waiterLock.WaitAsync(millisecondsTimeout, cancellationToken);
+#endif
     }
 
     bool DisposedValue;
     public void Dispose()
     {
         DisposedValue = true;
+#if NET6_0_OR_GREATER
+        //_reusableTimeouts?.TryDispose();
+#endif
         _waiterLock?.TryDispose();
         GC.SuppressFinalize(this);
     }

src/Admin/ThingsGateway.NewLife.X/Configuration/CompositeConfigProvider.cs

@@ -168,8 +168,8 @@ public class CompositeConfigProvider : IConfigProvider
     #endregion
 
     #region 绑定
-    private readonly ConcurrentDictionary<Object, String> _models = [];
-    private readonly ConcurrentDictionary<Object, ModelWrap> _models2 = [];
+    private readonly NonBlockingDictionary<Object, String> _models = [];
+    private readonly NonBlockingDictionary<Object, ModelWrap> _models2 = [];
     /// <summary>绑定模型，使能热更新，配置存储数据改变时同步修改模型属性</summary>
     /// <typeparam name="T">模型。可通过实现IConfigMapping接口来自定义映射配置到模型实例</typeparam>
     /// <param name="model">模型实例</param>

src/Admin/ThingsGateway.NewLife.X/Extension/DictionaryExtensions.cs

@@ -11,7 +11,7 @@ public static class DictionaryExtensions
     /// <param name="dict"></param>
     /// <param name="key"></param>
     /// <returns></returns>
-    public static Boolean Remove<TKey, TValue>(this ConcurrentDictionary<TKey, TValue> dict, TKey key) where TKey : notnull => dict.TryRemove(key, out _);
+    public static Boolean Remove<TKey, TValue>(this NonBlockingDictionary<TKey, TValue> dict, TKey key) where TKey : notnull => dict.TryRemove(key, out _);
 
 #if !NET6_0_OR_GREATER
     public static bool TryAdd<TKey, TValue>(this IDictionary<TKey, TValue> pairs, TKey key, TValue value)
@@ -77,7 +77,7 @@ public static class DictionaryExtensions
     /// <summary>
     /// 批量出队
     /// </summary>
-    public static List<T> ToListWithDequeue<TKEY, T>(this ConcurrentDictionary<TKEY, T> values, int maxCount = 0)
+    public static List<T> ToListWithDequeue<TKEY, T>(this NonBlockingDictionary<TKEY, T> values, int maxCount = 0)
     {
         if (maxCount <= 0)
         {
@@ -105,7 +105,7 @@ public static class DictionaryExtensions
     /// <summary>
     /// 批量出队
     /// </summary>
-    public static Dictionary<TKEY, T> ToDictWithDequeue<TKEY, T>(this ConcurrentDictionary<TKEY, T> values, int maxCount = 0)
+    public static Dictionary<TKEY, T> ToDictWithDequeue<TKEY, T>(this NonBlockingDictionary<TKEY, T> values, int maxCount = 0)
     {
         if (maxCount <= 0)
         {
@@ -135,7 +135,7 @@ public static class DictionaryExtensions
     /// <summary>
     /// 批量出队
     /// </summary>
-    public static IEnumerable<KeyValuePair<TKEY, T>> ToIEnumerableKVWithDequeue<TKEY, T>(this ConcurrentDictionary<TKEY, T> values, int maxCount = 0)
+    public static IEnumerable<KeyValuePair<TKEY, T>> ToIEnumerableKVWithDequeue<TKEY, T>(this NonBlockingDictionary<TKEY, T> values, int maxCount = 0)
     {
         if (values.IsEmpty) yield break;
 

src/Admin/ThingsGateway.NewLife.X/Extension/LinqExtensions.cs

@@ -101,7 +101,7 @@ public static class LinqExtensions
     /// <summary>
     /// 从并发字典中删除
     /// </summary>
-    public static bool Remove<TKey, TValue>(this ConcurrentDictionary<TKey, TValue> dict, TKey key) where TKey : notnull
+    public static bool Remove<TKey, TValue>(this NonBlockingDictionary<TKey, TValue> dict, TKey key) where TKey : notnull
     {
         return dict.TryRemove(key, out TValue? _);
     }

src/Admin/ThingsGateway.NewLife.X/Extension/PathExtensions.cs

@@ -38,10 +38,8 @@ public static class PathExtensions
                 path = Path.Combine(path, text);
             }
         }
-        // 处理路径分隔符，兼容Windows和Linux
-        var sep = Path.DirectorySeparatorChar;
-        var sep2 = sep == '/' ? '\\' : '/';
-        path = path.Replace(sep2, sep);
+
+        path = path.Replace('\\', '/');
         return path;
     }
 }

src/Admin/ThingsGateway.NewLife.X/Extension/ProcessHelper.cs

@@ -463,7 +463,7 @@ public static class ProcessHelper
                 StandardOutputEncoding = outputEncoding,
                 StandardErrorEncoding = outputEncoding,
             };
-            var process = Process.Start(psi);
+            using var process = Process.Start(psi);
             if (process == null) return null;
 
             if (msWait > 0 && !process.WaitForExit(msWait))

src/Admin/ThingsGateway.NewLife.X/Logger/ConsoleLog.cs

@@ -97,7 +97,7 @@ public class ConsoleLog : Logger
         }
     }
 
-    static readonly ConcurrentDictionary<Int32, ConsoleColor> dic = new();
+    static readonly NonBlockingDictionary<Int32, ConsoleColor> dic = new();
     static readonly ConsoleColor[] colors = [
         ConsoleColor.Green, ConsoleColor.Cyan, ConsoleColor.Magenta, ConsoleColor.White, ConsoleColor.Yellow,
         ConsoleColor.DarkGreen, ConsoleColor.DarkCyan, ConsoleColor.DarkMagenta, ConsoleColor.DarkRed, ConsoleColor.DarkYellow ];

src/Admin/ThingsGateway.NewLife.X/Logger/ITracer.cs

@@ -109,7 +109,7 @@ public class DefaultTracer : DisposeBase, ITracer, ILogFeature
     public IPool<ISpan> SpanPool => _SpanPool ??= new MySpanPool();
 
     /// <summary>Span构建器集合</summary>
-    protected ConcurrentDictionary<String, ISpanBuilder> _builders = new();
+    protected NonBlockingDictionary<String, ISpanBuilder> _builders = new();
 
     /// <summary>采样定时器</summary>
     protected TimerX? _timer;
@@ -292,7 +292,7 @@ public class DefaultTracer : DisposeBase, ITracer, ILogFeature
         var bs = _builders;
         if (bs.IsEmpty) return [];
 
-        _builders = new ConcurrentDictionary<String, ISpanBuilder>();
+        _builders = new NonBlockingDictionary<String, ISpanBuilder>();
 
         var bs2 = bs.Values.Where(e => e.Total > 0).ToArray();
 

src/Admin/ThingsGateway.NewLife.X/Logger/TextFileLog.cs

@@ -64,7 +64,7 @@ public class TextFileLog : Logger, IDisposable
         _Timer = new TimerX(DoWriteAndClose, null, 0_000, 5_000) { Async = true };
     }
 
-    private static readonly ConcurrentDictionary<String, TextFileLog> cache = new(StringComparer.OrdinalIgnoreCase);
+    private static readonly NonBlockingDictionary<String, TextFileLog> cache = new(StringComparer.OrdinalIgnoreCase);
     /// <summary>每个目录的日志实例应该只有一个，所以采用静态创建</summary>
     /// <param name="path">日志目录或日志文件路径</param>
     /// <param name="fileFormat"></param>
@@ -234,7 +234,7 @@ public class TextFileLog : Logger, IDisposable
         if (!_isFile && Backups > 0)
         {
             // 判断日志目录是否已存在
-            var di = LogPath.GetBasePath().AsDirectory();
+            DirectoryInfo? di = new DirectoryInfo(LogPath);
             if (di.Exists)
             {
                 // 删除*.del
@@ -257,7 +257,7 @@ public class TextFileLog : Logger, IDisposable
                 {
                     // 删除最旧的文件
                     var retain = fis.Length - Backups;
-                    fis = fis.OrderBy(e => e.CreationTime).Take(retain).ToArray();
+                    fis = fis.OrderBy(e => e.LastWriteTimeUtc).Take(retain).ToArray();
                     foreach (var item in fis)
                     {
                         OnWrite(LogLevel.Info, "The log file has reached the maximum limit of {0}, delete {1}, size {2: n0} Byte", Backups, item.Name, item.Length);

src/Admin/ThingsGateway.NewLife.X/Messaging/IEventBus.cs

@@ -59,7 +59,7 @@ public interface IEventHandler<TEvent>
 /// </remarks>
 public class EventBus<TEvent> : DisposeBase, IEventBus<TEvent>
 {
-    private readonly ConcurrentDictionary<String, IEventHandler<TEvent>> _handlers = [];
+    private readonly NonBlockingDictionary<String, IEventHandler<TEvent>> _handlers = [];
     /// <summary>已订阅的事件处理器集合</summary>
     public IDictionary<String, IEventHandler<TEvent>> Handlers => _handlers;
 

src/Admin/ThingsGateway.NewLife.X/Model/DeferredQueue.cs

@@ -20,9 +20,9 @@ public class DeferredQueue : DisposeBase
     /// <summary>名称</summary>
     public String Name { get; set; }
 
-    private volatile ConcurrentDictionary<String, Object> _Entities = new();
+    private volatile NonBlockingDictionary<String, Object> _Entities = new();
     /// <summary>实体字典</summary>
-    public ConcurrentDictionary<String, Object> Entities => _Entities;
+    public NonBlockingDictionary<String, Object> Entities => _Entities;
 
     /// <summary>跟踪数。达到该值时输出跟踪日志，默认1000</summary>
     public Int32 TraceCount { get; set; } = 1000;
@@ -206,7 +206,7 @@ public class DeferredQueue : DisposeBase
         var es = _Entities;
         if (es.IsEmpty) return;
 
-        _Entities = new ConcurrentDictionary<String, Object>();
+        _Entities = new NonBlockingDictionary<String, Object>();
         var times = _Times;
 
         Interlocked.Add(ref _count, -es.Count);

src/Admin/ThingsGateway.NewLife.X/Model/IServiceScope.cs

@@ -18,7 +18,7 @@ class MyServiceScope : IServiceScope, IServiceProvider
 
     public IServiceProvider ServiceProvider => this;
 
-    private readonly ConcurrentDictionary<Type, Object?> _cache = new();
+    private readonly NonBlockingDictionary<Type, Object?> _cache = new();
 
     public void Dispose()
     {

src/Admin/ThingsGateway.NewLife.X/Net/IDnsResolver.cs

@@ -23,7 +23,7 @@ public class DnsResolver : IDnsResolver
     /// <summary>缓存超时时间</summary>
     public TimeSpan Expire { set; get; } = TimeSpan.FromMinutes(5);
 
-    private readonly ConcurrentDictionary<String, DnsItem> _cache = new();
+    private readonly NonBlockingDictionary<String, DnsItem> _cache = new();
 
     /// <summary>解析域名</summary>
     /// <param name="host"></param>

src/Admin/ThingsGateway.NewLife.X/Net/NetServer.cs

@@ -146,7 +146,7 @@ public class NetServer : DisposeBase, IServer, IExtend, ILogFeature
     /// </remarks>
     public IServiceProvider? ServiceProvider { get; set; }
 
-    private ConcurrentDictionary<String, Object?>? _items;
+    private NonBlockingDictionary<String, Object?>? _items;
     /// <summary>数据项</summary>
     public IDictionary<String, Object?> Items => _items ??= new();
 
@@ -486,7 +486,7 @@ public class NetServer : DisposeBase, IServer, IExtend, ILogFeature
     #endregion
 
     #region 会话
-    private readonly ConcurrentDictionary<Int32, INetSession> _Sessions = new();
+    private readonly NonBlockingDictionary<Int32, INetSession> _Sessions = new();
     /// <summary>会话集合。用自增的数字ID作为标识，业务应用自己维持ID与业务主键的对应关系。</summary>
     public IDictionary<Int32, INetSession> Sessions => _Sessions;
 

src/Admin/ThingsGateway.NewLife.X/Net/SessionBase.cs

@@ -853,7 +853,7 @@ public abstract class SessionBase : DisposeBase, ISocketClient, ITransport, ILog
     #endregion 异常处理
 
     #region 扩展接口
-    private ConcurrentDictionary<String, Object?>? _items;
+    private NonBlockingDictionary<String, Object?>? _items;
     /// <summary>数据项</summary>
     public IDictionary<String, Object?> Items => _items ??= new();
 

src/Admin/ThingsGateway.NewLife.X/Net/SessionCollection.cs

@@ -10,7 +10,7 @@ namespace ThingsGateway.NewLife.Net;
 internal class SessionCollection : DisposeBase, IDictionary<String, ISocketSession>
 {
     #region 属性
-    private readonly ConcurrentDictionary<String, ISocketSession> _dic = new();
+    private readonly NonBlockingDictionary<String, ISocketSession> _dic = new();
 
     /// <summary>服务端</summary>
     public ISocketServer Server { get; private set; }

src/Admin/ThingsGateway.NewLife.X/Net/UdpSession.cs

@@ -400,7 +400,7 @@ public class UdpSession : DisposeBase, ISocketSession, ITransport, ILogFeature
     #endregion
 
     #region 扩展接口
-    private ConcurrentDictionary<String, Object?>? _items;
+    private NonBlockingDictionary<String, Object?>? _items;
     /// <summary>数据项</summary>
     public IDictionary<String, Object?> Items => _items ??= new();
 

src/Admin/ThingsGateway.NewLife.X/PooledAwait/AwaitableExtensions.cs

@@ -0,0 +1,15 @@
+using System.Runtime.CompilerServices;
+
+namespace PooledAwait
+{
+    /// <summary>
+    /// Provides async/await-related extension methods
+    /// </summary>
+    public static class AwaitableExtensions
+    {
+        /// <summary>Controls whether a yield operation should respect captured context</summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static ConfiguredYieldAwaitable ConfigureAwait(this YieldAwaitable _, bool continueOnCapturedContext)
+            => new ConfiguredYieldAwaitable(continueOnCapturedContext);
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/ConfiguredYieldAwaitable.cs

@@ -0,0 +1,125 @@
+using System.Runtime.CompilerServices;
+
+namespace PooledAwait
+{
+    /// <summary>Provides an awaitable context for switching into a target environment.</summary>
+    public readonly struct ConfiguredYieldAwaitable
+    {
+        /// <summary><see cref="Object.Equals(Object)"/></summary>
+        public override bool Equals(object? obj) => obj is ConfiguredYieldAwaitable other && other._continueOnCapturedContext == _continueOnCapturedContext;
+        /// <summary><see cref="Object.GetHashCode"/></summary>
+        public override int GetHashCode() => _continueOnCapturedContext ? 1 : 0;
+        /// <summary><see cref="Object.ToString"/></summary>
+        public override string ToString() => nameof(ConfiguredYieldAwaitable);
+
+        private readonly bool _continueOnCapturedContext;
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal ConfiguredYieldAwaitable(bool continueOnCapturedContext)
+            => _continueOnCapturedContext = continueOnCapturedContext;
+
+        /// <summary>Gets an awaiter for this <see cref="ConfiguredYieldAwaitable"/>.</summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public ConfiguredYieldAwaiter GetAwaiter()
+            => new ConfiguredYieldAwaiter(_continueOnCapturedContext);
+
+        /// <summary>Provides an awaitable context for switching into a target environment.</summary>
+        public readonly struct ConfiguredYieldAwaiter : ICriticalNotifyCompletion, INotifyCompletion
+        {
+            /// <summary><see cref="Object.Equals(Object)"/></summary>
+            public override bool Equals(object? obj) => obj is ConfiguredYieldAwaiter other && other._continueOnCapturedContext == _continueOnCapturedContext;
+            /// <summary><see cref="Object.GetHashCode"/></summary>
+            public override int GetHashCode() => _continueOnCapturedContext ? 1 : 0;
+            /// <summary><see cref="Object.ToString"/></summary>
+            public override string ToString() => nameof(ConfiguredYieldAwaiter);
+
+            private readonly bool _continueOnCapturedContext;
+
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            internal ConfiguredYieldAwaiter(bool continueOnCapturedContext)
+                => _continueOnCapturedContext = continueOnCapturedContext;
+
+            /// <summary>Gets whether a yield is not required.</summary>
+            public bool IsCompleted
+            {
+                [MethodImpl(MethodImplOptions.AggressiveInlining)]
+                get => false;
+            }
+
+            /// <summary>Ends the await operation.</summary>
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            public void GetResult() { }
+
+            /// <summary>Posts the <paramref name="continuation"/> back to the current context.</summary>
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            public void OnCompleted(Action continuation)
+            {
+                if (_continueOnCapturedContext) YieldFlowContext(continuation, true);
+                else YieldNoContext(continuation, true);
+            }
+
+            /// <summary>Posts the <paramref name="continuation"/> back to the current context.</summary>
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            public void UnsafeOnCompleted(Action continuation)
+            {
+                if (_continueOnCapturedContext) YieldFlowContext(continuation, false);
+                else YieldNoContext(continuation, false);
+            }
+
+            private static readonly WaitCallback s_waitCallbackRunAction = state => ((Action?)state)?.Invoke();
+
+#if PLAT_THREADPOOLWORKITEM
+            private sealed class ContinuationWorkItem : IThreadPoolWorkItem
+            {
+                private Action? _continuation;
+
+                [MethodImpl(MethodImplOptions.AggressiveInlining)]
+                private ContinuationWorkItem() => Internal.Counters.ItemBoxAllocated.Increment();
+
+                [MethodImpl(MethodImplOptions.AggressiveInlining)]
+                public static ContinuationWorkItem Create(Action continuation)
+                {
+                    var box = Pool<ContinuationWorkItem>.TryGet() ?? new ContinuationWorkItem();
+                    box._continuation = continuation;
+                    return box;
+                }
+
+                [MethodImpl(MethodImplOptions.AggressiveInlining)]
+                void IThreadPoolWorkItem.Execute()
+                {
+                    var callback = _continuation;
+                    _continuation = null;
+                    Pool<ContinuationWorkItem>.TryPut(this);
+                    callback?.Invoke();
+                }
+            }
+#endif
+            [MethodImpl(MethodImplOptions.NoInlining)] // no-one ever calls ConfigureAwait(true)!
+            private static void YieldFlowContext(Action continuation, bool flowContext)
+            {
+                var awaiter = default(YieldAwaitable.YieldAwaiter);
+                if (flowContext) awaiter.OnCompleted(continuation);
+                else awaiter.UnsafeOnCompleted(continuation);
+            }
+
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            private static void YieldNoContext(Action continuation, bool flowContext)
+            {
+                if (flowContext)
+                {
+                    ThreadPool.QueueUserWorkItem(s_waitCallbackRunAction, continuation);
+                }
+                else
+                {
+#if PLAT_THREADPOOLWORKITEM
+                    ThreadPool.UnsafeQueueUserWorkItem(ContinuationWorkItem.Create(continuation), false);
+#elif NETSTANDARD1_3
+                    ThreadPool.QueueUserWorkItem(s_waitCallbackRunAction, continuation);
+#else
+                    ThreadPool.UnsafeQueueUserWorkItem(s_waitCallbackRunAction, continuation);
+#endif
+                }
+            }
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/FireAndForget.cs

@@ -0,0 +1,62 @@
+using PooledAwait.Internal;
+
+using System.Runtime.CompilerServices;
+
+namespace PooledAwait
+{
+    /// <summary>
+    /// Represents an operation that completes at the first incomplete await,
+    /// with the remainder continuing in the background
+    /// </summary>
+    [AsyncMethodBuilder(typeof(MethodBuilders.FireAndForgetMethodBuilder))]
+    public readonly struct FireAndForget
+    {
+        /// <summary><see cref="Object.Equals(Object)"/></summary>
+        public override bool Equals(object? obj) => ThrowHelper.ThrowNotSupportedException<bool>();
+        /// <summary><see cref="Object.GetHashCode"/></summary>
+        public override int GetHashCode() => ThrowHelper.ThrowNotSupportedException<int>();
+        /// <summary><see cref="Object.ToString"/></summary>
+        public override string ToString() => nameof(FireAndForget);
+
+        /// <summary>
+        /// Raised when exceptions occur on fire-and-forget methods
+        /// </summary>
+        public static event Action<Exception>? Exception;
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal static void OnException(Exception exception)
+        {
+            if (exception != null) Exception?.Invoke(exception);
+        }
+
+        /// <summary>
+        /// Gets the instance as a value-task
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public ValueTask AsValueTask() => default;
+
+        /// <summary>
+        /// Gets the instance as a task
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public Task AsTask() => TaskUtils.CompletedTask;
+
+        /// <summary>
+        /// Gets the instance as a task
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static implicit operator Task(FireAndForget _) => TaskUtils.CompletedTask;
+
+        /// <summary>
+        /// Gets the instance as a value-task
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static implicit operator ValueTask(FireAndForget _) => default;
+
+        /// <summary>
+        /// Gets the awaiter for the instance
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public ValueTaskAwaiter GetAwaiter() => default(ValueTask).GetAwaiter();
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/IResettable.cs

@@ -0,0 +1,13 @@
+namespace PooledAwait
+{
+    /// <summary>
+    /// Indicates that an object can be reset
+    /// </summary>
+    public interface IResettable
+    {
+        /// <summary>
+        /// Resets this instance
+        /// </summary>
+        public void Reset();
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/Internal/BrowsableAttribute.cs

@@ -0,0 +1,12 @@
+#if NETSTANDARD1_3
+using System;
+
+namespace PooledAwait.Internal
+{
+    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Class | AttributeTargets.Struct, AllowMultiple = false, Inherited = true)]
+    internal sealed class BrowsableAttribute : Attribute
+    {
+        public BrowsableAttribute(bool _) { }
+    }
+}
+#endif

src/Admin/ThingsGateway.NewLife.X/PooledAwait/Internal/Counters.cs

@@ -0,0 +1,68 @@
+using System.Diagnostics;
+
+namespace PooledAwait.Internal
+{
+    internal static class Counters
+    {
+        internal struct Counter
+        {
+            private long _value;
+            [Conditional("DEBUG")]
+            public void Increment() => Interlocked.Increment(ref _value);
+#if !DEBUG
+            [System.Obsolete("Release only", false)]
+#endif
+            public long Value => Interlocked.Read(ref _value);
+#pragma warning disable CS0618
+            public override string ToString() => Value.ToString();
+#pragma warning restore CS0618
+            public override bool Equals(object? obj) => ThrowHelper.ThrowNotSupportedException<bool>();
+            public override int GetHashCode() => ThrowHelper.ThrowNotSupportedException<int>();
+            public void Reset() => Interlocked.Exchange(ref _value, 0);
+        }
+
+        internal static Counter
+            SetStateMachine,
+            PooledStateAllocated,
+            PooledStateRecycled,
+            StateMachineBoxAllocated,
+            StateMachineBoxRecycled,
+            ItemBoxAllocated,
+            TaskAllocated,
+            LazyStateAllocated;
+
+#if !DEBUG
+        [System.Obsolete("Release only", false)]
+#endif
+        public static long TotalAllocations =>
+            PooledStateAllocated.Value + StateMachineBoxAllocated.Value
+            + ItemBoxAllocated.Value + TaskAllocated.Value
+            + SetStateMachine.Value // SetStateMachine usually means a boxed value
+            + LazyStateAllocated.Value;
+
+        internal static void Reset()
+        {
+            SetStateMachine.Reset();
+            PooledStateAllocated.Reset();
+            PooledStateRecycled.Reset();
+            StateMachineBoxAllocated.Reset();
+            StateMachineBoxRecycled.Reset();
+            ItemBoxAllocated.Reset();
+            TaskAllocated.Reset();
+            LazyStateAllocated.Reset();
+        }
+
+#if !DEBUG
+        [System.Obsolete("Release only", false)]
+#endif
+        internal static string Summary()
+            => $@"SetStateMachine: {SetStateMachine.Value}
+PooledStateAllocated: {PooledStateAllocated.Value}
+PooledStateRecycled: {PooledStateRecycled.Value}
+StateMachineBoxAllocated: {StateMachineBoxAllocated.Value}
+StateMachineBoxRecycled: {StateMachineBoxRecycled.Value}
+ItemBoxAllocated: {ItemBoxAllocated.Value}
+TaskAllocated: {TaskAllocated.Value}
+LazyStateAllocated: {LazyStateAllocated.Value}";
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/Internal/LazyTaskStateT.cs

@@ -0,0 +1,173 @@
+using System.Runtime.CompilerServices;
+
+namespace PooledAwait.Internal
+{
+    internal sealed class LazyTaskState<T>
+    {
+        private short _version;
+        private T _result;
+        private Exception? _exception;
+        private Task? _task;
+        private bool _isComplete;
+        private ValueTaskCompletionSource<T> _source;
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private void CheckTokenInsideLock(short token)
+        {
+            if (token != _version) ThrowHelper.ThrowInvalidOperationException();
+        }
+        private object _syncRoot = new object();
+        public Task GetTask(short token)
+        {
+            lock (_syncRoot)
+            {
+                CheckTokenInsideLock(token);
+                if (_task != null) { }
+                else if (_exception is OperationCanceledException) _task = TaskUtils.TaskFactory<T>.Canceled;
+                else if (_exception != null) _task = TaskUtils.FromException<T>(_exception);
+                else if (_isComplete) _task = typeof(T) == typeof(Nothing) ? TaskUtils.CompletedTask : TaskUtils.TaskFactory<T>.FromResult(_result);
+                else
+                {
+                    _source = ValueTaskCompletionSource<T>.Create();
+                    _task = _source.Task;
+                }
+                return _task;
+            }
+        }
+
+        internal bool IsValid(short token) => Volatile.Read(ref _version) == token;
+        internal bool HasSource
+        {
+            get
+            {
+                lock (_syncRoot) { return !_source.IsNull; }
+            }
+        }
+        internal bool HasTask => Volatile.Read(ref _task) != null;
+
+        public bool TrySetResult(short token, T result)
+        {
+            lock (_syncRoot)
+            {
+                if (_isComplete) return false;
+                if (token != _version) return false;
+                _isComplete = true;
+                if (!_source.IsNull) return _source.TrySetResult(result);
+                _result = result;
+                return true;
+            }
+        }
+
+        public bool TrySetException(short token, Exception exception)
+        {
+            lock (_syncRoot)
+            {
+                if (_isComplete) return false;
+                if (token != _version) return false;
+                _isComplete = true;
+                if (!_source.IsNull) return _source.TrySetException(exception);
+                _exception = exception;
+                return true;
+            }
+        }
+
+        public bool TrySetCanceled(short token, CancellationToken cancellationToken = default)
+        {
+            lock (_syncRoot)
+            {
+                if (_isComplete) return false;
+                if (token != _version) return false;
+                _isComplete = true;
+                if (!_source.IsNull) return _source.TrySetCanceled(cancellationToken);
+                _task = TaskUtils.TaskFactory<T>.Canceled;
+                return true;
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static LazyTaskState<T> Create() => Pool<LazyTaskState<T>>.TryGet() ?? new LazyTaskState<T>();
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private LazyTaskState()
+        {
+            Counters.LazyStateAllocated.Increment();
+            _result = default!;
+            _version = InitialVersion;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static LazyTaskState<T> CreateConstant(T value)
+        {
+            var obj = new LazyTaskState<T>
+            {
+                _version = Constant
+            };
+            obj.TrySetResult(Constant, value);
+            return obj;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static LazyTaskState<T> CreateCanceled()
+        {
+            var obj = new LazyTaskState<T>
+            {
+                _version = Constant
+            };
+            obj.TrySetCanceled(Constant);
+            return obj;
+        }
+
+        const short InitialVersion = 0, Constant = InitialVersion - 1;
+
+        internal short Version
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get => _version;
+        }
+
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        internal void Recycle(short token)
+        {
+            if (token == Constant) return; // never recycle constant values; this is by design
+
+            if (Volatile.Read(ref _version) != token) return; // wrong version; all bets are off!
+
+            if (!Volatile.Read(ref _isComplete)) // if incomplete, try to cancel
+            {
+                if (!TrySetCanceled(token)) return; // if that didn't work... give up - don't recycle
+            }
+
+            bool haveLock = false;
+            try
+            {
+                // only if uncontested; we're not waiting in a dispose
+                Monitor.TryEnter(_syncRoot, ref haveLock);
+                if (haveLock)
+                {
+                    if (token == _version)
+                    {
+                        _result = default!;
+                        _exception = default;
+                        _task = default;
+                        _isComplete = false;
+                        _source = default;
+
+                        switch (++_version)
+                        {
+                            case InitialVersion: // don't wrap all the way around when recycling; could lead to conflicts
+                            case Constant: // don't allow things to *become* constants
+                                break;
+                            default:
+                                Pool<LazyTaskState<T>>.TryPut(this);
+                                break;
+                        }
+                    }
+                }
+            }
+            finally
+            {
+                if (haveLock) Monitor.Exit(this);
+            }
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/Internal/ManualResetValueTaskSourceCore.cs

@@ -0,0 +1,314 @@
+#if !PLAT_MRVTSC
+using System;
+using System.Diagnostics;
+using System.Runtime.ExceptionServices;
+using System.Runtime.InteropServices;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Threading.Tasks.Sources;
+
+// from: https://raw.githubusercontent.com/dotnet/coreclr/master/src/System.Private.CoreLib/shared/System/Threading/Tasks/Sources/ManualResetValueTaskSourceCore.cs
+// original license:
+
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+namespace PooledAwait.Internal
+{
+    internal readonly struct WaitCallbackShim
+    {
+        public readonly Action<object?>? Continuation;
+        public readonly object? State;
+        private WaitCallbackShim(Action<object?>? continuation, object? state)
+        {
+            Continuation = continuation;
+            State = state;
+        }
+        public static object Create(Action<object?>? continuation, object? state)
+            => Pool.Box(new WaitCallbackShim(continuation, state));
+
+        private void InvokeContinuation() => Continuation?.Invoke(State);
+
+        public static readonly WaitCallback Invoke = state => Pool.UnboxAndReturn<WaitCallbackShim>(state).InvokeContinuation();
+    }
+
+    /// <summary>Provides the core logic for implementing a manual-reset <see cref="IValueTaskSource"/> or <see cref="IValueTaskSource{TResult}"/>.</summary>
+    /// <typeparam name="TResult"></typeparam>
+    [StructLayout(LayoutKind.Auto)]
+    public struct ManualResetValueTaskSourceCore<TResult>
+    {
+        /// <summary>
+        /// The callback to invoke when the operation completes if <see cref="OnCompleted"/> was called before the operation completed,
+        /// or <see cref="ManualResetValueTaskSourceCoreShared.s_sentinel"/> if the operation completed before a callback was supplied,
+        /// or null if a callback hasn't yet been provided and the operation hasn't yet completed.
+        /// </summary>
+        private Action<object?>? _continuation;
+        /// <summary>State to pass to <see cref="_continuation"/>.</summary>
+        private object? _continuationState;
+        /// <summary><see cref="ExecutionContext"/> to flow to the callback, or null if no flowing is required.</summary>
+        private ExecutionContext? _executionContext;
+        /// <summary>
+        /// A "captured" <see cref="SynchronizationContext"/> or <see cref="TaskScheduler"/> with which to invoke the callback,
+        /// or null if no special context is required.
+        /// </summary>
+        private object? _capturedContext;
+        /// <summary>Whether the current operation has completed.</summary>
+        private bool _completed;
+        /// <summary>The result with which the operation succeeded, or the default value if it hasn't yet completed or failed.</summary>
+        /* [AllowNull, MaybeNull] */
+        private TResult _result;
+        /// <summary>The exception with which the operation failed, or null if it hasn't yet completed or completed successfully.</summary>
+        private ExceptionDispatchInfo? _error;
+        /// <summary>The current version of this value, used to help prevent misuse.</summary>
+        private short _version;
+
+        /// <summary>Gets or sets whether to force continuations to run asynchronously.</summary>
+        /// <remarks>Continuations may run asynchronously if this is false, but they'll never run synchronously if this is true.</remarks>
+        public bool RunContinuationsAsynchronously { get; set; }
+
+        /// <summary>Resets to prepare for the next operation.</summary>
+        public void Reset()
+        {
+            // Reset/update state for the next use/await of this instance.
+            _version++;
+            _completed = false;
+            _result = default!; // TODO-NULLABLE: Remove ! when nullable attributes are respected
+            _error = null;
+            _executionContext = null;
+            _capturedContext = null;
+            _continuation = null;
+            _continuationState = null;
+        }
+
+        /// <summary>Completes with a successful result.</summary>
+        /// <param name="result">The result.</param>
+        public void SetResult(TResult result)
+        {
+            _result = result;
+            SignalCompletion();
+        }
+
+        /// <summary>Complets with an error.</summary>
+        /// <param name="error"></param>
+        public void SetException(Exception error)
+        {
+            _error = ExceptionDispatchInfo.Capture(error);
+            SignalCompletion();
+        }
+
+        /// <summary>Gets the operation version.</summary>
+        public short Version => _version;
+
+        /// <summary>Gets the status of the operation.</summary>
+        /// <param name="token">Opaque value that was provided to the <see cref="ValueTask"/>'s constructor.</param>
+        public ValueTaskSourceStatus GetStatus(short token)
+        {
+            ValidateToken(token);
+            return
+                _continuation == null || !_completed ? ValueTaskSourceStatus.Pending :
+                _error == null ? ValueTaskSourceStatus.Succeeded :
+                _error.SourceException is OperationCanceledException ? ValueTaskSourceStatus.Canceled :
+                ValueTaskSourceStatus.Faulted;
+        }
+
+        /// <summary>Gets the result of the operation.</summary>
+        /// <param name="token">Opaque value that was provided to the <see cref="ValueTask"/>'s constructor.</param>
+        // [StackTraceHidden]
+        public TResult GetResult(short token)
+        {
+            ValidateToken(token);
+            if (!_completed)
+            {
+                ThrowHelper.ThrowInvalidOperationException();
+            }
+
+            _error?.Throw();
+            return _result;
+        }
+
+        /// <summary>Schedules the continuation action for this operation.</summary>
+        /// <param name="continuation">The continuation to invoke when the operation has completed.</param>
+        /// <param name="state">The state object to pass to <paramref name="continuation"/> when it's invoked.</param>
+        /// <param name="token">Opaque value that was provided to the <see cref="ValueTask"/>'s constructor.</param>
+        /// <param name="flags">The flags describing the behavior of the continuation.</param>
+        public void OnCompleted(Action<object?> continuation, object? state, short token, ValueTaskSourceOnCompletedFlags flags)
+        {
+            if (continuation == null) ThrowHelper.ThrowArgumentNullException(nameof(continuation));
+            ValidateToken(token);
+
+            if ((flags & ValueTaskSourceOnCompletedFlags.FlowExecutionContext) != 0)
+            {
+                _executionContext = ExecutionContext.Capture();
+            }
+
+            if ((flags & ValueTaskSourceOnCompletedFlags.UseSchedulingContext) != 0)
+            {
+                SynchronizationContext? sc = SynchronizationContext.Current;
+                if (sc != null && sc.GetType() != typeof(SynchronizationContext))
+                {
+                    _capturedContext = sc;
+                }
+                else
+                {
+                    TaskScheduler ts = TaskScheduler.Current;
+                    if (ts != TaskScheduler.Default)
+                    {
+                        _capturedContext = ts;
+                    }
+                }
+            }
+
+            // We need to set the continuation state before we swap in the delegate, so that
+            // if there's a race between this and SetResult/Exception and SetResult/Exception
+            // sees the _continuation as non-null, it'll be able to invoke it with the state
+            // stored here.  However, this also means that if this is used incorrectly (e.g.
+            // awaited twice concurrently), _continuationState might get erroneously overwritten.
+            // To minimize the chances of that, we check preemptively whether _continuation
+            // is already set to something other than the completion sentinel.
+
+            object? oldContinuation = _continuation;
+            if (oldContinuation == null)
+            {
+                _continuationState = state;
+                oldContinuation = Interlocked.CompareExchange(ref _continuation, continuation, null);
+            }
+
+            if (oldContinuation != null)
+            {
+                // Operation already completed, so we need to queue the supplied callback.
+                if (!ReferenceEquals(oldContinuation, ManualResetValueTaskSourceCoreShared.s_sentinel))
+                {
+                    ThrowHelper.ThrowInvalidOperationException();
+                }
+
+                switch (_capturedContext)
+                {
+                    case null:
+                        if (_executionContext != null)
+                        {
+                            ThreadPool.QueueUserWorkItem(WaitCallbackShim.Invoke, WaitCallbackShim.Create(continuation, state));
+                        }
+                        else
+                        {
+#if NETSTANDARD1_3
+                            ThreadPool.QueueUserWorkItem(
+#else
+                            ThreadPool.UnsafeQueueUserWorkItem(
+#endif
+                                WaitCallbackShim.Invoke, WaitCallbackShim.Create(continuation, state));
+                        }
+                        break;
+
+                    case SynchronizationContext sc:
+                        sc.Post(s =>
+                        {
+                            var tuple = (Tuple<Action<object?>, object?>)s!;
+                            tuple.Item1(tuple.Item2);
+                        }, Tuple.Create(continuation, state));
+                        break;
+
+                    case TaskScheduler ts:
+                        Task.Factory.StartNew(continuation, state, CancellationToken.None, TaskCreationOptions.DenyChildAttach, ts);
+                        break;
+                }
+            }
+        }
+
+        /// <summary>Ensures that the specified token matches the current version.</summary>
+        /// <param name="token">The token supplied by <see cref="ValueTask"/>.</param>
+        private void ValidateToken(short token)
+        {
+            if (token != _version)
+            {
+                ThrowHelper.ThrowInvalidOperationException();
+            }
+        }
+
+        /// <summary>Signals that the operation has completed.  Invoked after the result or error has been set.</summary>
+        private void SignalCompletion()
+        {
+            if (_completed)
+            {
+                ThrowHelper.ThrowInvalidOperationException();
+            }
+            _completed = true;
+
+            if (_continuation != null || Interlocked.CompareExchange(ref _continuation, ManualResetValueTaskSourceCoreShared.s_sentinel, null) != null)
+            {
+                if (_executionContext != null)
+                {
+                    ExecutionContext.Run(
+                        _executionContext,
+                        s_UnboxAndInvokeContextCallback,
+                        Pool.Box<ManualResetValueTaskSourceCore<TResult>>(this));
+                }
+                else
+                {
+                    InvokeContinuation();
+                }
+            }
+        }
+
+        static readonly ContextCallback s_UnboxAndInvokeContextCallback = state => Pool.UnboxAndReturn<ManualResetValueTaskSourceCore<TResult>>(state).InvokeContinuation();
+
+        /// <summary>
+        /// Invokes the continuation with the appropriate captured context / scheduler.
+        /// This assumes that if <see cref="_executionContext"/> is not null we're already
+        /// running within that <see cref="ExecutionContext"/>.
+        /// </summary>
+        private void InvokeContinuation()
+        {
+            Debug.Assert(_continuation != null);
+
+            switch (_capturedContext)
+            {
+                case null:
+                    if (RunContinuationsAsynchronously)
+                    {
+                        if (_executionContext != null)
+                        {
+                            ThreadPool.QueueUserWorkItem(WaitCallbackShim.Invoke, WaitCallbackShim.Create(_continuation, _continuationState));
+                        }
+                        else
+                        {
+#if NETSTANDARD1_3
+                            ThreadPool.QueueUserWorkItem(
+#else
+                            ThreadPool.UnsafeQueueUserWorkItem(
+#endif
+                                WaitCallbackShim.Invoke, WaitCallbackShim.Create(_continuation, _continuationState));
+                        }
+                    }
+                    else
+                    {
+                        _continuation!(_continuationState);
+                    }
+                    break;
+
+                case SynchronizationContext sc:
+                    sc.Post(s =>
+                    {
+                        var state = (Tuple<Action<object?>, object?>)s!;
+                        state.Item1(state.Item2);
+                    }, Tuple.Create(_continuation, _continuationState));
+                    break;
+
+                case TaskScheduler ts:
+                    Task.Factory.StartNew(_continuation, _continuationState, CancellationToken.None, TaskCreationOptions.DenyChildAttach, ts);
+                    break;
+            }
+        }
+    }
+
+    internal static class ManualResetValueTaskSourceCoreShared // separated out of generic to avoid unnecessary duplication
+    {
+        internal static readonly Action<object?> s_sentinel = CompletionSentinel;
+        private static void CompletionSentinel(object? _) // named method to aid debugging
+        {
+            Debug.Fail("The sentinel delegate should never be invoked.");
+            ThrowHelper.ThrowInvalidOperationException();
+        }
+    }
+}
+#endif

src/Admin/ThingsGateway.NewLife.X/PooledAwait/Internal/Nothing.cs

@@ -0,0 +1,9 @@
+namespace PooledAwait.Internal
+{
+    internal readonly struct Nothing // to express ValueTask via PooledState<Nothing>
+    {
+        public override string ToString() => nameof(Nothing);
+        public override int GetHashCode() => 0;
+        public override bool Equals(object? obj) => obj is Nothing;
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/Internal/PooledStateT.cs

@@ -0,0 +1,124 @@
+using System.Runtime.CompilerServices;
+using System.Threading.Tasks.Sources;
+
+namespace PooledAwait.Internal
+{
+    internal sealed class PooledState<T> : IValueTaskSource<T>, IValueTaskSource
+    {
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static PooledState<T> Create(out short token)
+        {
+            var obj = Pool<PooledState<T>>.TryGet() ?? new PooledState<T>();
+            token = obj._source.Version;
+            return obj;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private PooledState() => Counters.PooledStateAllocated.Increment();
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal bool IsValid(short token) => _source.Version == token;
+
+        private ManualResetValueTaskSourceCore<T> _source; // needs to be mutable
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public T GetResult(short token)
+        {
+            // we only support getting the result once; doing this recycles the source and advances the token
+
+            lock (SyncLock) // we need to be really paranoid about cross-threading over changing the token
+            {
+                var status = _source.GetStatus(token); // do this *outside* the try/finally
+                try // so that we don't increment the counter if someone asks for the wrong value
+                {
+                    switch (status)
+                    {
+                        case ValueTaskSourceStatus.Canceled:
+                            ThrowHelper.ThrowTaskCanceledException();
+                            break;
+                        case ValueTaskSourceStatus.Pending:
+                            Monitor.Wait(SyncLock);
+                            break;
+                    }
+                    return _source.GetResult(token);
+                }
+                finally
+                {
+                    _source.Reset();
+                    if (_source.Version != TaskUtils.InitialTaskSourceVersion)
+                    {
+                        Pool<PooledState<T>>.TryPut(this);
+                        Counters.PooledStateRecycled.Increment();
+                    }
+                }
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        void IValueTaskSource.GetResult(short token) => GetResult(token);
+
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        private void SignalResult(short token)
+        {
+            lock (SyncLock)
+            {
+                if (token == _source.Version && _source.GetStatus(token) != ValueTaskSourceStatus.Pending)
+                {
+                    Monitor.Pulse(SyncLock);
+                }
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public ValueTaskSourceStatus GetStatus(short token) => _source.GetStatus(token);
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void OnCompleted(Action<object?> continuation, object? state, short token, ValueTaskSourceOnCompletedFlags flags)
+            => _source.OnCompleted(continuation, state, token, flags);
+
+        private object SyncLock
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get => this;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TrySetException(Exception error, short token)
+        {
+            if (token == _source.Version)
+            {
+
+                switch (_source.GetStatus(token))
+                {
+                    case ValueTaskSourceStatus.Pending:
+                        _source.SetException(error);
+                        // only need to signal if SetException didn't inline a handler
+                        if (token == _source.Version) SignalResult(token);
+                        return true;
+                }
+            }
+            return false;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TrySetResult(T result, short token)
+        {
+            if (token == _source.Version)
+            {
+                switch (_source.GetStatus(token))
+                {
+                    case ValueTaskSourceStatus.Pending:
+                        _source.SetResult(result);
+                        // only need to signal if SetResult didn't inline a handler
+                        if (token == _source.Version) SignalResult(token);
+                        return true;
+                }
+            }
+            return false;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TrySetCanceled(short token)
+            => TrySetException(TaskUtils.SharedTaskCanceledException, token);
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/Internal/StateMachineBox.cs

@@ -0,0 +1,113 @@
+using System.Runtime.CompilerServices;
+
+namespace PooledAwait.Internal
+{
+    internal sealed class StateMachineBox<TStateMachine>
+#if PLAT_THREADPOOLWORKITEM
+        : IThreadPoolWorkItem
+#endif
+            where TStateMachine : IAsyncStateMachine
+    {
+        private readonly Action _execute;
+        private TStateMachine _stateMachine;
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private StateMachineBox()
+        {
+            _stateMachine = default!;
+            _execute = Execute;
+            Counters.StateMachineBoxAllocated.Increment();
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private static StateMachineBox<TStateMachine> Create(ref TStateMachine stateMachine)
+        {
+            var box = Pool<StateMachineBox<TStateMachine>>.TryGet() ?? new StateMachineBox<TStateMachine>();
+            box._stateMachine = stateMachine;
+            return box;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void AwaitOnCompleted<TAwaiter>(
+            ref TAwaiter awaiter, ref TStateMachine stateMachine)
+            where TAwaiter : INotifyCompletion
+        {
+            var box = Create(ref stateMachine);
+            if (typeof(TAwaiter) == typeof(YieldAwaitable.YieldAwaiter))
+            {
+                Yield(box, true);
+            }
+            else
+            {
+                awaiter.OnCompleted(box._execute);
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void AwaitUnsafeOnCompleted<TAwaiter>(
+            ref TAwaiter awaiter, ref TStateMachine stateMachine)
+            where TAwaiter : ICriticalNotifyCompletion
+        {
+            var box = Create(ref stateMachine);
+            if (typeof(TAwaiter) == typeof(YieldAwaitable.YieldAwaiter))
+            {
+                Yield(box, false);
+            }
+            else
+            {
+                awaiter.UnsafeOnCompleted(box._execute);
+            }
+        }
+
+        private static void Yield(StateMachineBox<TStateMachine> box, bool flowContext)
+        {
+            // heavily inspired by YieldAwaitable.QueueContinuation
+
+            var syncContext = SynchronizationContext.Current;
+            if (syncContext != null && syncContext.GetType() != typeof(SynchronizationContext))
+            {
+                syncContext.Post(s_SendOrPostCallback, box);
+            }
+            else
+            {
+                var taskScheduler = TaskScheduler.Current;
+                if (!ReferenceEquals(taskScheduler, TaskScheduler.Default))
+                {
+                    Task.Factory.StartNew(box._execute, default, TaskCreationOptions.PreferFairness, taskScheduler);
+                }
+                else if (flowContext)
+                {
+                    ThreadPool.QueueUserWorkItem(s_WaitCallback, box);
+                }
+                else
+                {
+#if PLAT_THREADPOOLWORKITEM
+                    ThreadPool.UnsafeQueueUserWorkItem(box, false);
+#elif NETSTANDARD1_3
+                    ThreadPool.QueueUserWorkItem(s_WaitCallback, box);
+#else
+                    ThreadPool.UnsafeQueueUserWorkItem(s_WaitCallback, box);
+#endif
+                }
+            }
+        }
+
+        static readonly SendOrPostCallback s_SendOrPostCallback = state => ((StateMachineBox<TStateMachine>?)state!)?.Execute();
+        static readonly WaitCallback s_WaitCallback = state => ((StateMachineBox<TStateMachine>?)state)?.Execute();
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void Execute()
+        {
+            // extract the state
+            var tmp = _stateMachine;
+
+            // recycle the instance
+            _stateMachine = default!;
+            Pool<StateMachineBox<TStateMachine>>.TryPut(this);
+            Counters.StateMachineBoxRecycled.Increment();
+
+            // progress the state machine
+            tmp.MoveNext();
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/Internal/TaskUtils.cs

@@ -0,0 +1,171 @@
+using System.Runtime.CompilerServices;
+using System.Threading.Tasks.Sources;
+
+namespace PooledAwait.Internal
+{
+    // NET45 lacks some useful Task APIs; shim over them
+    internal static class TaskUtils
+    {
+        internal static readonly short InitialTaskSourceVersion = new ManualResetValueTaskSourceCore<Nothing>().Version;
+
+        public static readonly TaskCanceledException SharedTaskCanceledException = new TaskCanceledException();
+#if NET45
+        public static readonly Task CompletedTask = TaskFactory<Nothing>.FromResult(default);
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Task<T> FromException<T>(Exception exception)
+        {
+            var source = ValueTaskCompletionSource<T>.Create();
+            source.TrySetException(exception);
+            return source.Task;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Task FromException(Exception exception) => FromException<bool>(exception);
+#else
+        public static readonly Task CompletedTask = Task.CompletedTask;
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Task<T> FromException<T>(Exception exception) => Task.FromException<T>(exception);
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Task FromException(Exception exception) => Task.FromException(exception);
+#endif
+
+
+        internal static class TaskFactory<TResult>
+        {
+            // draws from AsyncMethodBuilder, but less boxing
+
+            public static readonly Task<TResult> Canceled = CreateCanceled();
+
+            static Task<TResult> CreateCanceled()
+            {
+                var source = ValueTaskCompletionSource<TResult>.Create();
+                source.TrySetCanceled();
+                return source.Task;
+            }
+
+            private static readonly TaskCache<TResult> _cache = (TaskCache<TResult>)CreateCacheForType();
+
+            private static object CreateCacheForType()
+            {
+                if (typeof(TResult) == typeof(Nothing)) return new NothingTaskCache();
+                if (typeof(TResult) == typeof(int)) return new Int32TaskCache();
+                if (typeof(TResult) == typeof(int?)) return new NullableInt32TaskCache();
+                if (typeof(TResult) == typeof(bool)) return new BooleanTaskCache();
+                if (typeof(TResult) == typeof(bool?)) return new NullableBooleanTaskCache();
+
+                Type underlyingType = Nullable.GetUnderlyingType(typeof(TResult)) ?? typeof(TResult);
+                if (underlyingType == typeof(uint)
+                 || underlyingType == typeof(byte)
+                 || underlyingType == typeof(sbyte)
+                 || underlyingType == typeof(char)
+                 || underlyingType == typeof(decimal)
+                 || underlyingType == typeof(long)
+                 || underlyingType == typeof(ulong)
+                 || underlyingType == typeof(short)
+                 || underlyingType == typeof(ushort)
+                 || underlyingType == typeof(float)
+                 || underlyingType == typeof(double)
+                 || underlyingType == typeof(IntPtr)
+                 || underlyingType == typeof(UIntPtr)
+                    ) return new DefaultEquatableTaskCache<TResult>();
+
+                if (typeof(TResult) == typeof(string)) return new StringTaskCache();
+#if !NETSTANDARD1_3
+                if (!typeof(TResult).IsValueType) return new ObjectTaskCache<TResult>();
+#endif
+                return new TaskCache<TResult>();
+            }
+
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            public static Task<TResult> FromResult(TResult result) => _cache.FromResult(result);
+        }
+
+        class TaskCache<TResult>
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            internal virtual Task<TResult> FromResult(TResult value) => Task.FromResult(value);
+        }
+        class NothingTaskCache : TaskCache<Nothing>
+        {
+            private static readonly Task<Nothing> s_Instance = Task.FromResult<Nothing>(default);
+            internal override Task<Nothing> FromResult(Nothing value) => s_Instance;
+        }
+        class DefaultEquatableTaskCache<TResult> : TaskCache<TResult>
+        {
+            private static readonly Task<TResult> s_Default = Task.FromResult<TResult>(default!);
+            private static readonly EqualityComparer<TResult> _comparer = EqualityComparer<TResult>.Default;
+            internal override Task<TResult> FromResult(TResult value)
+                => _comparer.Equals(value, default!) ? s_Default : base.FromResult(value);
+        }
+        class ObjectTaskCache<TResult> : TaskCache<TResult>
+        {
+            private static readonly Task<TResult> s_Null = Task.FromResult<TResult>(default!);
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            internal override Task<TResult> FromResult(TResult value)
+                => value == null ? s_Null : base.FromResult(value);
+        }
+        sealed class StringTaskCache : ObjectTaskCache<string>
+        {
+            private static readonly Task<string> s_Empty = Task.FromResult<string>("");
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            internal override Task<string> FromResult(string value)
+                => string.IsNullOrEmpty(value) ? s_Empty : base.FromResult(value);
+        }
+        sealed class BooleanTaskCache : TaskCache<bool>
+        {
+            static readonly Task<bool> s_True = Task.FromResult(true), s_False = Task.FromResult(false);
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            internal override Task<bool> FromResult(bool value) => value ? s_True : s_False;
+        }
+        sealed class NullableBooleanTaskCache : TaskCache<bool?>
+        {
+            static readonly Task<bool?> s_True = Task.FromResult((bool?)true), s_False = Task.FromResult((bool?)false),
+                s_Null = Task.FromResult((bool?)null);
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            internal override Task<bool?> FromResult(bool? value) =>
+                value.HasValue ? (value.GetValueOrDefault() ? s_True : s_False) : s_Null;
+        }
+        sealed class Int32TaskCache : TaskCache<int>
+        {
+            const int MIN_INC = -1, MAX_EXC = 11;
+            static readonly Task<int>[] s_Known = CreateKnown();
+            static Task<int>[] CreateKnown()
+            {
+                var arr = new Task<int>[MAX_EXC - MIN_INC];
+                for (int i = 0; i < arr.Length; i++)
+                    arr[i] = Task.FromResult(i + MIN_INC);
+                return arr;
+            }
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            internal override Task<int> FromResult(int value)
+                => value >= MIN_INC && value < MAX_EXC ? s_Known[value - MIN_INC] : base.FromResult(value);
+        }
+        sealed class NullableInt32TaskCache : TaskCache<int?>
+        {
+            const int MIN_INC = -1, MAX_EXC = 11;
+            static readonly Task<int?>[] s_Known = CreateKnown();
+            static readonly Task<int?> s_Null = Task.FromResult((int?)null);
+            static Task<int?>[] CreateKnown()
+            {
+                var arr = new Task<int?>[MAX_EXC - MIN_INC];
+                for (int i = 0; i < arr.Length; i++)
+                    arr[i] = Task.FromResult((int?)(i + MIN_INC));
+                return arr;
+            }
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            internal override Task<int?> FromResult(int? nullable)
+            {
+                if (nullable.HasValue)
+                {
+                    int value = nullable.GetValueOrDefault();
+                    return value >= MIN_INC && value < MAX_EXC ? s_Known[value - MIN_INC] : base.FromResult(nullable);
+                }
+                return s_Null;
+            }
+        }
+
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/Internal/ThrowHelper.cs

@@ -0,0 +1,30 @@
+using System.Runtime.CompilerServices;
+
+namespace PooledAwait.Internal
+{
+    internal static class ThrowHelper
+    {
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        internal static void ThrowInvalidOperationException(string? message = null)
+        {
+            if (string.IsNullOrWhiteSpace(message)) throw new InvalidOperationException();
+            else throw new InvalidOperationException(message);
+        }
+
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        internal static T ThrowInvalidOperationException<T>(string? message = null)
+        {
+            ThrowInvalidOperationException(message);
+            return default!;
+        }
+
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        internal static T ThrowNotSupportedException<T>() => throw new NotSupportedException();
+
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        internal static void ThrowArgumentNullException(string paramName) => throw new ArgumentNullException(paramName);
+
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        internal static void ThrowTaskCanceledException() => throw new TaskCanceledException();
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/LazyTaskCompletionSource.cs

@@ -0,0 +1,127 @@
+using PooledAwait.Internal;
+
+using System.Runtime.CompilerServices;
+
+namespace PooledAwait
+{
+    /// <summary>
+    /// Like a ValueTaskCompletionSource, but the actual task will only become allocated
+    /// if the .Task is consumed; this is useful for APIs where the consumer *may* consume a task
+    /// </summary>
+    public readonly struct LazyTaskCompletionSource : IDisposable
+    {
+
+        private static LazyTaskCompletionSource _completed, _canceled;
+
+        /// <summary>
+        /// A global LazyTaskCompletionSource that represents a completed operation
+        /// </summary>
+        public static LazyTaskCompletionSource CompletedTask
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get => _completed.IsValid ? _completed : _completed = new LazyTaskCompletionSource(LazyTaskState<Nothing>.CreateConstant(default));
+        }
+
+        /// <summary>
+        /// A global LazyTaskCompletionSource that represents a cancelled operation
+        /// </summary>
+        public static LazyTaskCompletionSource CanceledTask
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get => _canceled.IsValid ? _canceled : _canceled = new LazyTaskCompletionSource(LazyTaskState<Nothing>.CreateCanceled());
+        }
+
+        /// <summary><see cref="Object.Equals(Object)"/></summary>
+        public override bool Equals(object? obj) => obj is LazyTaskCompletionSource ltcs && _state == ltcs._state && _token == ltcs._token;
+        /// <summary><see cref="Object.GetHashCode"/></summary>
+        public override int GetHashCode() => (_state == null ? 0 : _state.GetHashCode()) ^ _token;
+        /// <summary><see cref="Object.ToString"/></summary>
+        public override string ToString() => nameof(LazyTaskCompletionSource);
+
+        private readonly LazyTaskState<Nothing> _state;
+        private readonly short _token;
+
+        /// <summary>
+        /// Gets the task associated with this instance
+        /// </summary>
+        public Task Task => _state?.GetTask(_token) ?? ThrowHelper.ThrowInvalidOperationException<Task>();
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private LazyTaskCompletionSource(LazyTaskState<Nothing> state)
+        {
+            _state = state;
+            _token = state.Version;
+        }
+
+        /// <summary>
+        /// Create a new instance; this instance should be disposed when it is known to be unwanted
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static LazyTaskCompletionSource Create()
+            => new LazyTaskCompletionSource(LazyTaskState<Nothing>.Create());
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TrySetResult() => _state?.TrySetResult(_token, default) == true;
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TrySetCanceled(CancellationToken cancellationToken = default) => _state?.TrySetCanceled(_token, cancellationToken) == true;
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetResult()
+        {
+            if (!TrySetResult()) ThrowHelper.ThrowInvalidOperationException();
+        }
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetCanceled(CancellationToken cancellationToken = default)
+        {
+            if (!TrySetCanceled(cancellationToken)) ThrowHelper.ThrowInvalidOperationException();
+        }
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TrySetException(Exception exception) => _state?.TrySetException(_token, exception) == true;
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetException(Exception exception)
+        {
+            if (!TrySetException(exception)) ThrowHelper.ThrowInvalidOperationException();
+        }
+
+        /// <summary>
+        /// Release all resources associated with this operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void Dispose() => _state?.Recycle(_token);
+
+        internal bool IsValid => _state?.IsValid(_token) == true;
+        internal bool HasSource => _state?.HasSource == true;
+        internal bool HasTask => _state?.HasTask == true;
+
+        /// <summary>
+        /// Indicates whether this is an invalid default instance
+        /// </summary>
+        public bool IsNull
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get => _state == null;
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/LazyTaskCompletionSourceT.cs

@@ -0,0 +1,126 @@
+using PooledAwait.Internal;
+
+using System.Runtime.CompilerServices;
+
+namespace PooledAwait
+{
+    /// <summary>
+    /// Like a ValueTaskCompletionSource<typeparamref name="T"/>, but the actual task will only become allocated
+    /// if the .Task is consumed; this is useful for APIs where the consumer *may* consume a task
+    /// </summary>
+    public readonly struct LazyTaskCompletionSource<T> : IDisposable
+    {
+        /// <summary><see cref="Object.Equals(Object)"/></summary>
+        public override bool Equals(object? obj) => obj is LazyTaskCompletionSource<T> ltcs && _state == ltcs._state && _token == ltcs._token;
+        /// <summary><see cref="Object.GetHashCode"/></summary>
+        public override int GetHashCode() => (_state == null ? 0 : _state.GetHashCode()) ^ _token;
+        /// <summary><see cref="Object.ToString"/></summary>
+        public override string ToString() => nameof(LazyTaskCompletionSource);
+
+        private readonly LazyTaskState<T> _state;
+        private readonly short _token;
+
+        /// <summary>
+        /// Gets the task associated with this instance
+        /// </summary>
+        public Task<T> Task => (Task<T>)(_state?.GetTask(_token) ?? ThrowHelper.ThrowInvalidOperationException<Task<T>>());
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private LazyTaskCompletionSource(LazyTaskState<T> state)
+        {
+            _state = state;
+            _token = state.Version;
+        }
+
+        /// <summary>
+        /// Create a new instance; this instance should be disposed when it is known to be unwanted
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static LazyTaskCompletionSource<T> Create()
+            => new LazyTaskCompletionSource<T>(LazyTaskState<T>.Create());
+
+        /// <summary>
+        /// Create a new instance; this instance will never by recycled
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static LazyTaskCompletionSource<T> CreateConstant(T value)
+            => new LazyTaskCompletionSource<T>(LazyTaskState<T>.CreateConstant(value));
+
+
+        private static LazyTaskCompletionSource<T> _canceled;
+
+        /// <summary>
+        /// A global LazyTaskCompletionSource that represents a cancelled operation
+        /// </summary>
+        public static LazyTaskCompletionSource<T> CanceledTask
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get => _canceled.IsValid ? _canceled : _canceled = new LazyTaskCompletionSource<T>(LazyTaskState<T>.CreateCanceled());
+        }
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TrySetResult(T result) => _state?.TrySetResult(_token, result) == true;
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetResult(T result)
+        {
+            if (!TrySetResult(result)) ThrowHelper.ThrowInvalidOperationException();
+        }
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TrySetCanceled(CancellationToken cancellationToken = default)
+            => _state?.TrySetCanceled(_token, cancellationToken) == true;
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetCanceled(CancellationToken cancellationToken = default)
+        {
+            if (!TrySetCanceled(cancellationToken)) ThrowHelper.ThrowInvalidOperationException();
+        }
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool TrySetException(Exception exception) => _state?.TrySetException(_token, exception) == true;
+
+        /// <summary>
+        /// Set the result of the operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetException(Exception exception)
+        {
+            if (!TrySetException(exception)) ThrowHelper.ThrowInvalidOperationException();
+        }
+
+        /// <summary>
+        /// Release all resources associated with this operation
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void Dispose() => _state?.Recycle(_token);
+
+        internal bool IsValid => _state?.IsValid(_token) == true;
+        internal bool HasSource => _state?.HasSource == true;
+        internal bool HasTask => _state?.HasTask == true;
+
+        /// <summary>
+        /// Indicates whether this is an invalid default instance
+        /// </summary>
+        public bool IsNull
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get => _state == null;
+        }
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/MethodBuilders/FireAndForgetMethodBuilder.cs

@@ -0,0 +1,73 @@
+using PooledAwait.Internal;
+
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+#pragma warning disable CS1591
+
+namespace PooledAwait.MethodBuilders
+{
+    /// <summary>
+    /// This type is not intended for direct usage
+    /// </summary>
+    [Browsable(false)]
+    [EditorBrowsable(EditorBrowsableState.Never)]
+    public struct FireAndForgetMethodBuilder
+    {
+        public override bool Equals(object? obj) => ThrowHelper.ThrowNotSupportedException<bool>();
+        public override int GetHashCode() => ThrowHelper.ThrowNotSupportedException<int>();
+        public override string ToString() => nameof(FireAndForgetMethodBuilder);
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static FireAndForgetMethodBuilder Create() => default;
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetStateMachine(IAsyncStateMachine _) => Counters.SetStateMachine.Increment();
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetResult() { }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetException(Exception exception) => FireAndForget.OnException(exception);
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public FireAndForget Task
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get => default;
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void AwaitOnCompleted<TAwaiter, TStateMachine>(
+            ref TAwaiter awaiter, ref TStateMachine stateMachine)
+            where TAwaiter : INotifyCompletion
+            where TStateMachine : IAsyncStateMachine
+            => StateMachineBox<TStateMachine>.AwaitOnCompleted(ref awaiter, ref stateMachine);
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void AwaitUnsafeOnCompleted<TAwaiter, TStateMachine>(
+            ref TAwaiter awaiter, ref TStateMachine stateMachine)
+            where TAwaiter : ICriticalNotifyCompletion
+            where TStateMachine : IAsyncStateMachine
+            => StateMachineBox<TStateMachine>.AwaitUnsafeOnCompleted(ref awaiter, ref stateMachine);
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void Start<TStateMachine>(ref TStateMachine stateMachine)
+            where TStateMachine : IAsyncStateMachine => stateMachine.MoveNext();
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/MethodBuilders/PooledTaskMethodBuilder.cs

@@ -0,0 +1,105 @@
+using PooledAwait.Internal;
+
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+using SystemTask = System.Threading.Tasks.Task;
+
+#pragma warning disable CS1591
+
+namespace PooledAwait.MethodBuilders
+{
+    /// <summary>
+    /// This type is not intended for direct usage
+    /// </summary>
+    [Browsable(false)]
+    [EditorBrowsable(EditorBrowsableState.Never)]
+    public struct PooledTaskMethodBuilder
+    {
+        public override bool Equals(object? obj) => ThrowHelper.ThrowNotSupportedException<bool>();
+        public override int GetHashCode() => ThrowHelper.ThrowNotSupportedException<int>();
+        public override string ToString() => nameof(PooledTaskMethodBuilder);
+
+        private ValueTaskCompletionSource<Nothing> _source;
+        private Exception _exception;
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static PooledTaskMethodBuilder Create() => default;
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetStateMachine(IAsyncStateMachine _) => Counters.SetStateMachine.Increment();
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetResult()
+        {
+            _source.TrySetResult(default);
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetException(Exception exception)
+        {
+            _source.TrySetException(exception);
+            _exception = exception;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private void EnsureHasTask()
+        {
+            if (_source.IsNull) _source = ValueTaskCompletionSource<Nothing>.Create();
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public PooledTask Task
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get
+            {
+                SystemTask task;
+                if (!_source.IsNull) task = _source.Task;
+                else if (_exception is OperationCanceledException) task = TaskUtils.TaskFactory<Nothing>.Canceled;
+                else if (_exception != null) task = TaskUtils.FromException(_exception);
+                else task = TaskUtils.CompletedTask;
+                return new PooledTask(task);
+            }
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void AwaitOnCompleted<TAwaiter, TStateMachine>(
+            ref TAwaiter awaiter, ref TStateMachine stateMachine)
+            where TAwaiter : INotifyCompletion
+            where TStateMachine : IAsyncStateMachine
+        {
+            EnsureHasTask();
+            StateMachineBox<TStateMachine>.AwaitOnCompleted(ref awaiter, ref stateMachine);
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void AwaitUnsafeOnCompleted<TAwaiter, TStateMachine>(
+            ref TAwaiter awaiter, ref TStateMachine stateMachine)
+            where TAwaiter : ICriticalNotifyCompletion
+            where TStateMachine : IAsyncStateMachine
+        {
+            EnsureHasTask();
+            StateMachineBox<TStateMachine>.AwaitUnsafeOnCompleted(ref awaiter, ref stateMachine);
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void Start<TStateMachine>(ref TStateMachine stateMachine)
+            where TStateMachine : IAsyncStateMachine => stateMachine.MoveNext();
+    }
+}

src/Admin/ThingsGateway.NewLife.X/PooledAwait/MethodBuilders/PooledTaskMethodBuilderT.cs

@@ -0,0 +1,105 @@
+using PooledAwait.Internal;
+
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+#pragma warning disable CS1591
+
+namespace PooledAwait.MethodBuilders
+{
+    /// <summary>
+    /// This type is not intended for direct usage
+    /// </summary>
+    [Browsable(false)]
+    [EditorBrowsable(EditorBrowsableState.Never)]
+    public struct PooledTaskMethodBuilder<T>
+    {
+        public override bool Equals(object? obj) => ThrowHelper.ThrowNotSupportedException<bool>();
+        public override int GetHashCode() => ThrowHelper.ThrowNotSupportedException<int>();
+        public override string ToString() => nameof(PooledTaskMethodBuilder);
+
+        private ValueTaskCompletionSource<T> _source;
+        private Exception _exception;
+        private T _result;
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static PooledTaskMethodBuilder<T> Create() => default;
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetStateMachine(IAsyncStateMachine _) => Counters.SetStateMachine.Increment();
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetResult(T result)
+        {
+            _source.TrySetResult(result);
+            _result = result;
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetException(Exception exception)
+        {
+            _source.TrySetException(exception);
+            _exception = exception;
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public PooledTask<T> Task
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get
+            {
+                Task<T> task;
+                if (!_source.IsNull) task = _source.Task;
+                else if (_exception is OperationCanceledException) task = TaskUtils.TaskFactory<T>.Canceled;
+                else if (_exception != null) task = TaskUtils.FromException<T>(_exception);
+                else task = TaskUtils.TaskFactory<T>.FromResult(_result);
+                return new PooledTask<T>(task);
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private void EnsureHasTask()
+        {
+            if (_source.IsNull) _source = ValueTaskCompletionSource<T>.Create();
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void AwaitOnCompleted<TAwaiter, TStateMachine>(
+            ref TAwaiter awaiter, ref TStateMachine stateMachine)
+            where TAwaiter : INotifyCompletion
+            where TStateMachine : IAsyncStateMachine
+        {
+            EnsureHasTask();
+            StateMachineBox<TStateMachine>.AwaitOnCompleted(ref awaiter, ref stateMachine);
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void AwaitUnsafeOnCompleted<TAwaiter, TStateMachine>(
+            ref TAwaiter awaiter, ref TStateMachine stateMachine)
+            where TAwaiter : ICriticalNotifyCompletion
+            where TStateMachine : IAsyncStateMachine
+        {
+            EnsureHasTask();
+            StateMachineBox<TStateMachine>.AwaitUnsafeOnCompleted(ref awaiter, ref stateMachine);
+        }
+
+        [Browsable(false)]
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void Start<TStateMachine>(ref TStateMachine stateMachine)
+            where TStateMachine : IAsyncStateMachine => stateMachine.MoveNext();
+    }
+}