├── IdleBus ├── yxq.snk ├── HashedWheelTimer_Impl.zip ├── IdleBus`1.NoticeEventArgs.cs ├── IdleBus`1.NoticeType.cs ├── IdleBus.cs ├── IdleBus`1.Test.cs ├── IdleBus.csproj ├── IdleBus`1.ItemInfo.cs ├── IdleBus`1.ThreadScan.cs ├── IdleBus.xml └── IdleBus`1.cs ├── IdleScheduler ├── readme.md └── IdleScheduler.csproj ├── Examples ├── Examples_IdleBus_WinformNet40 │ ├── Properties │ │ ├── Settings.settings │ │ ├── AssemblyInfo.cs │ │ ├── Settings.Designer.cs │ │ ├── Resources.Designer.cs │ │ └── Resources.resx │ ├── Program.cs │ ├── Form1.cs │ ├── Examples_IdleBus_WinformNet40.csproj │ ├── Form1.resx │ └── Form1.Designer.cs ├── Examples_IdleBus_Quickstart │ ├── Examples_IdleBus_Quickstart.csproj │ └── Program.cs └── Examples_IdleBus_Core31 │ ├── Examples_IdleBus_Core31.csproj │ └── Program.cs ├── .gitattributes ├── IdleBus.sln ├── readme.md └── .gitignore /IdleBus/yxq.snk: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/2881099/IdleBus/HEAD/IdleBus/yxq.snk -------------------------------------------------------------------------------- /IdleBus/HashedWheelTimer_Impl.zip: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/2881099/IdleBus/HEAD/IdleBus/HashedWheelTimer_Impl.zip -------------------------------------------------------------------------------- /IdleScheduler/readme.md: -------------------------------------------------------------------------------- 1 | ## IdleScheduler 已正式改名为 FreeScheduler 2 | 3 | ## 源码已迁移至：[https://github.com/2881099/FreeScheduler](https://github.com/2881099/FreeScheduler) 4 | 5 | ## Nuget 包名已改名为：FreeScheduler -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_WinformNet40/Properties/Settings.settings: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_Quickstart/Examples_IdleBus_Quickstart.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Exe 5 | netcoreapp3.1 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_Core31/Examples_IdleBus_Core31.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Exe 5 | netcoreapp3.1 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_WinformNet40/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Windows.Forms; 5 | 6 | namespace Examples_IdleBus_WinformNet40 7 | { 8 | static class Program 9 | { 10 | /// 11 | /// 应用程序的主入口点。 12 | /// 13 | [STAThread] 14 | static void Main() 15 | { 16 | Application.EnableVisualStyles(); 17 | Application.SetCompatibleTextRenderingDefault(false); 18 | Application.Run(new Form1()); 19 | } 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /IdleBus/IdleBus`1.NoticeEventArgs.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Concurrent; 3 | using System.Collections.Generic; 4 | using System.Diagnostics; 5 | using System.Text; 6 | using System.Threading; 7 | 8 | partial class IdleBus 9 | { 10 | 11 | public class NoticeEventArgs : EventArgs 12 | { 13 | 14 | public NoticeType NoticeType { get; } 15 | public TKey Key { get; } 16 | public Exception Exception { get; } 17 | public string Log { get; } 18 | 19 | public NoticeEventArgs(NoticeType noticeType, TKey key, Exception exception, string log) 20 | { 21 | this.NoticeType = noticeType; 22 | this.Key = key; 23 | this.Exception = exception; 24 | this.Log = log; 25 | } 26 | 27 | } 28 | 29 | } -------------------------------------------------------------------------------- /IdleBus/IdleBus`1.NoticeType.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Concurrent; 3 | using System.Collections.Generic; 4 | using System.Diagnostics; 5 | using System.Text; 6 | using System.Threading; 7 | 8 | partial class IdleBus 9 | { 10 | 11 | public enum NoticeType 12 | { 13 | 14 | /// 15 | /// 执行 Register 方法的时候 16 | /// 17 | Register, 18 | 19 | /// 20 | /// 执行 Remove 方法的时候，注意：实际会延时释放【实例】 21 | /// 22 | Remove, 23 | 24 | /// 25 | /// 自动创建【实例】的时候 26 | /// 27 | AutoCreate, 28 | 29 | /// 30 | /// 自动释放不活跃【实例】的时候 31 | /// 32 | AutoRelease, 33 | 34 | /// 35 | /// 获取【实例】的时候 36 | /// 37 | Get 38 | 39 | } 40 | 41 | } -------------------------------------------------------------------------------- /IdleBus/IdleBus.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Concurrent; 3 | using System.Collections.Generic; 4 | using System.Diagnostics; 5 | using System.Text; 6 | using System.Threading; 7 | 8 | /// 9 | /// 空闲对象容器管理，可实现自动创建、销毁、扩张收缩，解决【实例】长时间占用问题 10 | /// 11 | public class IdleBus : IdleBus 12 | { 13 | /// 14 | /// 按空闲时间1分钟，创建空闲容器 15 | /// 16 | public IdleBus() : base() { } 17 | /// 18 | /// 指定空闲时间、创建空闲容器 19 | /// 20 | /// 空闲时间 21 | public IdleBus(TimeSpan idle) : base(idle) { } 22 | } 23 | 24 | /// 25 | /// 空闲对象容器管理，可实现自动创建、销毁、扩张收缩，解决【实例】长时间占用问题 26 | /// 27 | public class IdleBus : IdleBus where TValue : class, IDisposable 28 | { 29 | /// 30 | /// 按空闲时间1分钟，创建空闲容器 31 | /// 32 | public IdleBus() : base() { } 33 | /// 34 | /// 指定空闲时间、创建空闲容器 35 | /// 36 | /// 空闲时间 37 | public IdleBus(TimeSpan idle) : base(idle) { } 38 | } 39 | -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_WinformNet40/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | 5 | // 有关程序集的一般信息由以下 6 | // 控制。更改这些特性值可修改 7 | // 与程序集关联的信息。 8 | [assembly: AssemblyTitle("Test")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("")] 12 | [assembly: AssemblyProduct("Test")] 13 | [assembly: AssemblyCopyright("Copyright © 2019")] 14 | [assembly: AssemblyTrademark("")] 15 | [assembly: AssemblyCulture("")] 16 | 17 | // 将 ComVisible 设置为 false 会使此程序集中的类型 18 | //对 COM 组件不可见。如果需要从 COM 访问此程序集中的类型 19 | //请将此类型的 ComVisible 特性设置为 true。 20 | [assembly: ComVisible(false)] 21 | 22 | // 如果此项目向 COM 公开，则下列 GUID 用于类型库的 ID 23 | [assembly: Guid("0fc8305a-114e-4792-9226-726fe3651cb0")] 24 | 25 | // 程序集的版本信息由下列四个值组成: 26 | // 27 | // 主版本 28 | // 次版本 29 | // 生成号 30 | // 修订号 31 | // 32 | //可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值 33 | //通过使用 "*"，如下所示: 34 | // [assembly: AssemblyVersion("1.0.*")] 35 | [assembly: AssemblyVersion("1.0.0.0")] 36 | [assembly: AssemblyFileVersion("1.0.0.0")] 37 | -------------------------------------------------------------------------------- /IdleBus/IdleBus`1.Test.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Concurrent; 3 | using System.Collections.Generic; 4 | using System.Diagnostics; 5 | using System.Text; 6 | using System.Threading; 7 | 8 | partial class IdleBus 9 | { 10 | 11 | public static void Test() 12 | { 13 | //超过1分钟没有使用，连续检测2次都这样，就销毁【实例】 14 | var ib = new IdleBus(TimeSpan.FromMinutes(1)); 15 | ib.Notice += (_, e) => 16 | { 17 | var log = $"[{DateTime.Now.ToString("HH:mm:ss")}] 线程{Thread.CurrentThread.ManagedThreadId}：{e.Log}"; 18 | //Trace.WriteLine(log); 19 | Console.WriteLine(log); 20 | }; 21 | 22 | ib.Register("key1", () => new ManualResetEvent(false)); 23 | ib.Register("key2", () => new AutoResetEvent(false)); 24 | 25 | var item = ib.Get("key2") as AutoResetEvent; 26 | //获得 key2 对象，创建 27 | 28 | item = ib.Get("key2") as AutoResetEvent; 29 | //获得 key2 对象，已创建 30 | 31 | int num1 = ib.UsageQuantity; 32 | //【实例】有效数量（即已经创建了的），后台定时清理不活跃的【实例】，此值就会减少 33 | 34 | ib.Dispose(); 35 | } 36 | 37 | } -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_WinformNet40/Properties/Settings.Designer.cs: -------------------------------------------------------------------------------- 1 | //------------------------------------------------------------------------------ 2 | // 3 | // 此代码由工具生成。 4 | // 运行时版本:4.0.30319.42000 5 | // 6 | // 对此文件的更改可能会导致不正确的行为，并且如果 7 | // 重新生成代码，这些更改将会丢失。 8 | // 9 | //------------------------------------------------------------------------------ 10 | 11 | namespace Examples_IdleBus_WinformNet40.Properties { 12 | 13 | 14 | [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()] 15 | [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.4.0.0")] 16 | internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase { 17 | 18 | private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings()))); 19 | 20 | public static Settings Default { 21 | get { 22 | return defaultInstance; 23 | } 24 | } 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /IdleScheduler/IdleScheduler.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | netstandard2.0;net40 5 | 1.5.2.9 6 | true 7 | YeXiangQin 8 | IdleScheduler 轻量定时任务调度，支持临时的延时任务和重复循环任务，可按秒，每天固定时间，每周固定时间，每月固定时间执行。 9 | https://github.com/2881099/FreeScheduler 10 | https://github.com/2881099/FreeScheduler 11 | git 12 | MIT 13 | IdleScheduler;Scheduler;Timer;TempTask 14 | $(AssemblyName) 15 | $(AssemblyName) 16 | true 17 | true 18 | true 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | -------------------------------------------------------------------------------- /IdleBus/IdleBus.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | netstandard2.0;net40 5 | 1.5.3 6 | true 7 | YeXiangQin 8 | IdleBus 空闲对象管理容器，有效组织对象重复利用，自动创建、销毁，解决【实例】过多且长时间占用的问题。 9 | https://github.com/2881099/IdleBus 10 | https://github.com/2881099/IdleBus 11 | git 12 | MIT 13 | IdleBus;Idle 14 | $(AssemblyName) 15 | $(AssemblyName) 16 | true 17 | true 18 | true 19 | yxq.snk 20 | false 21 | 22 | 23 | 24 | IdleBus.xml 25 | 3 26 | 27 | 28 | 29 | -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_Quickstart/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | 3 | namespace Examples_IdleBus_Quickstart 4 | { 5 | class Program 6 | { 7 | static void Main(string[] args) 8 | { 9 | //超过20秒没有使用，就销毁【实例】 10 | var ib = new IdleBus(TimeSpan.FromSeconds(20)); 11 | ib.Notice += (_, e) => 12 | { 13 | Console.WriteLine(" " + e.Log); 14 | 15 | if (e.NoticeType == IdleBus.NoticeType.AutoRelease) 16 | Console.WriteLine($" [{DateTime.Now.ToString("g")}] {e.Key} 空闲被回收"); 17 | }; 18 | 19 | while (true) 20 | { 21 | Console.WriteLine("输入 > "); 22 | var line = Console.ReadLine().Trim(); 23 | if (string.IsNullOrEmpty(line)) break; 24 | 25 | // 注册 26 | ib.TryRegister(line, () => new TestInfo()); 27 | 28 | // 第一次：创建 29 | TestInfo item = ib.Get(line) as TestInfo; 30 | 31 | // 第二次：直接获取，长驻内存直到空闲销毁 32 | item = ib.Get(line) as TestInfo; 33 | } 34 | 35 | ib.Dispose(); 36 | } 37 | 38 | class TestInfo : IDisposable 39 | { 40 | public void Dispose() { } 41 | } 42 | } 43 | } 44 | -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_Core31/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Diagnostics; 3 | using System.Threading; 4 | 5 | namespace Examples_IdleBus_Core31 6 | { 7 | class Program 8 | { 9 | static void Main(string[] args) 10 | { 11 | var ib = new IdleBus(TimeSpan.FromSeconds(10)); 12 | ib.Notice += (_, e2) => 13 | { 14 | if (e2.NoticeType == IdleBus.NoticeType.AutoCreate || 15 | e2.NoticeType == IdleBus.NoticeType.AutoRelease) 16 | { 17 | var log = $"[{DateTime.Now.ToString("HH:mm:ss")}] 线程{Thread.CurrentThread.ManagedThreadId}：{e2.Log}"; 18 | //Trace.WriteLine(log); 19 | Console.WriteLine(log); 20 | } 21 | }; 22 | 23 | var testkey1 = ib.Exists("key1"); 24 | 25 | ib 26 | .Register("key1", () => new ManualResetEvent(false)) 27 | .Register("key2", () => new AutoResetEvent(false)); 28 | 29 | var testkey2 = ib.Exists("key1"); 30 | 31 | for (var a = 3; a < 2000; a++) 32 | ib.Register("key" + a, () => new System.Data.SqlClient.SqlConnection()); 33 | 34 | for (var a = 1; a < 2000; a++) 35 | ib.Get("key" + a); 36 | 37 | var now = DateTime.Now; 38 | int counter = 100 * 1000; 39 | for (var k = 0; k < 100; k++) 40 | { 41 | new Thread(() => 42 | { 43 | var rnd = new Random(); 44 | 45 | for (var a = 0; a < 1000; a++) 46 | { 47 | for (var l = 0; l < 10; l++) 48 | { 49 | ib.Get("key" + rnd.Next(1, 2000)); 50 | } 51 | 52 | if (Interlocked.Decrement(ref counter) <= 0) 53 | Console.WriteLine($"测试完成，100线程并发 ib.Get() 获取100万次，耗时：{DateTime.Now.Subtract(now).TotalMilliseconds}ms"); 54 | } 55 | }).Start(); 56 | } 57 | 58 | Console.ReadKey(); 59 | ib.Dispose(); 60 | } 61 | } 62 | } 63 | -------------------------------------------------------------------------------- /.gitattributes: -------------------------------------------------------------------------------- 1 | ############################################################################### 2 | # Set default behavior to automatically normalize line endings. 3 | ############################################################################### 4 | * text=auto 5 | 6 | ############################################################################### 7 | # Set default behavior for command prompt diff. 8 | # 9 | # This is need for earlier builds of msysgit that does not have it on by 10 | # default for csharp files. 11 | # Note: This is only used by command line 12 | ############################################################################### 13 | #*.cs diff=csharp 14 | 15 | ############################################################################### 16 | # Set the merge driver for project and solution files 17 | # 18 | # Merging from the command prompt will add diff markers to the files if there 19 | # are conflicts (Merging from VS is not affected by the settings below, in VS 20 | # the diff markers are never inserted). Diff markers may cause the following 21 | # file extensions to fail to load in VS. An alternative would be to treat 22 | # these files as binary and thus will always conflict and require user 23 | # intervention with every merge. To do so, just uncomment the entries below 24 | ############################################################################### 25 | #*.sln merge=binary 26 | #*.csproj merge=binary 27 | #*.vbproj merge=binary 28 | #*.vcxproj merge=binary 29 | #*.vcproj merge=binary 30 | #*.dbproj merge=binary 31 | #*.fsproj merge=binary 32 | #*.lsproj merge=binary 33 | #*.wixproj merge=binary 34 | #*.modelproj merge=binary 35 | #*.sqlproj merge=binary 36 | #*.wwaproj merge=binary 37 | 38 | ############################################################################### 39 | # behavior for image files 40 | # 41 | # image files are treated as binary by default. 42 | ############################################################################### 43 | #*.jpg binary 44 | #*.png binary 45 | #*.gif binary 46 | 47 | ############################################################################### 48 | # diff behavior for common document formats 49 | # 50 | # Convert binary document formats to text before diffing them. This feature 51 | # is only available from the command line. Turn it on by uncommenting the 52 | # entries below. 53 | ############################################################################### 54 | #*.doc diff=astextplain 55 | #*.DOC diff=astextplain 56 | #*.docx diff=astextplain 57 | #*.DOCX diff=astextplain 58 | #*.dot diff=astextplain 59 | #*.DOT diff=astextplain 60 | #*.pdf diff=astextplain 61 | #*.PDF diff=astextplain 62 | #*.rtf diff=astextplain 63 | #*.RTF diff=astextplain -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_WinformNet40/Properties/Resources.Designer.cs: -------------------------------------------------------------------------------- 1 | //------------------------------------------------------------------------------ 2 | // 3 | // 此代码由工具生成。 4 | // 运行时版本:4.0.30319.42000 5 | // 6 | // 对此文件的更改可能会导致不正确的行为，并且如果 7 | // 重新生成代码，这些更改将会丢失。 8 | // 9 | //------------------------------------------------------------------------------ 10 | 11 | namespace Examples_IdleBus_WinformNet40.Properties { 12 | using System; 13 | 14 | 15 | /// 16 | /// 一个强类型的资源类，用于查找本地化的字符串等。 17 | /// 18 | // 此类是由 StronglyTypedResourceBuilder 19 | // 类通过类似于 ResGen 或 Visual Studio 的工具自动生成的。 20 | // 若要添加或移除成员，请编辑 .ResX 文件，然后重新运行 ResGen 21 | // (以 /str 作为命令选项)，或重新生成 VS 项目。 22 | [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "16.0.0.0")] 23 | [global::System.Diagnostics.DebuggerNonUserCodeAttribute()] 24 | [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()] 25 | internal class Resources { 26 | 27 | private static global::System.Resources.ResourceManager resourceMan; 28 | 29 | private static global::System.Globalization.CultureInfo resourceCulture; 30 | 31 | [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")] 32 | internal Resources() { 33 | } 34 | 35 | /// 36 | /// 返回此类使用的缓存的 ResourceManager 实例。 37 | /// 38 | [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)] 39 | internal static global::System.Resources.ResourceManager ResourceManager { 40 | get { 41 | if (object.ReferenceEquals(resourceMan, null)) { 42 | global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Examples_IdleBus_WinformNet40.Properties.Resources", typeof(Resources).Assembly); 43 | resourceMan = temp; 44 | } 45 | return resourceMan; 46 | } 47 | } 48 | 49 | /// 50 | /// 重写当前线程的 CurrentUICulture 属性 51 | /// 重写当前线程的 CurrentUICulture 属性。 52 | /// 53 | [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)] 54 | internal static global::System.Globalization.CultureInfo Culture { 55 | get { 56 | return resourceCulture; 57 | } 58 | set { 59 | resourceCulture = value; 60 | } 61 | } 62 | } 63 | } 64 | -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_WinformNet40/Form1.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Concurrent; 3 | using System.Collections.Generic; 4 | using System.ComponentModel; 5 | using System.Data; 6 | using System.Drawing; 7 | using System.Linq; 8 | using System.Text; 9 | using System.Threading; 10 | using System.Windows.Forms; 11 | 12 | namespace Examples_IdleBus_WinformNet40 13 | { 14 | public partial class Form1 : Form 15 | { 16 | public Form1() 17 | { 18 | InitializeComponent(); 19 | } 20 | 21 | private void button1_Click(object sender, EventArgs e) 22 | { 23 | IdleBus.Test(); 24 | } 25 | 26 | IdleBus ib; 27 | 28 | private void Form1_Load(object sender, EventArgs e) 29 | { 30 | 31 | } 32 | 33 | private void button4_Click(object sender, EventArgs e) 34 | { 35 | ib?.Dispose(); 36 | ib = new IdleBus(TimeSpan.FromSeconds(10)); 37 | ib.Notice += (_, e2) => 38 | { 39 | var log = $"[{DateTime.Now.ToString("HH:mm:ss")}] 线程{Thread.CurrentThread.ManagedThreadId}：{e2.Log}"; 40 | //Trace.WriteLine(log); 41 | Console.WriteLine(log); 42 | }; 43 | 44 | var key1Val = new ManualResetEvent(false); 45 | ib 46 | .Register("key1", () => key1Val) //姿势错误，第二次创建时会抛出异常 47 | .Register("key2", () => new AutoResetEvent(false)); 48 | 49 | for (var a = 3; a < 2000; a++) 50 | ib.Register("key" + a, () => new System.Data.SqlClient.SqlConnection()); 51 | } 52 | private void button2_Click(object sender, EventArgs e) 53 | { 54 | label1.Text = ib.Get("key1")?.ToString(); 55 | } 56 | private void button3_Click(object sender, EventArgs e) 57 | { 58 | label1.Text = ib.Get("key2")?.ToString(); 59 | } 60 | 61 | private void button6_Click(object sender, EventArgs e) 62 | { 63 | var now = DateTime.Now; 64 | int counter = 100 * 1000; 65 | for (var k = 0; k < 100; k++) 66 | { 67 | new Thread(() => 68 | { 69 | var rnd = new Random(); 70 | 71 | for (var a = 0; a < 1000; a++) 72 | { 73 | for (var l = 0; l < 10; l++) 74 | { 75 | ib.Get("key" + rnd.Next(1, 2000)); 76 | } 77 | 78 | if (Interlocked.Decrement(ref counter) <= 0) 79 | MessageBox.Show($"测试完成，100线程并发 ib.Get() 获取100万次，耗时：{DateTime.Now.Subtract(now).TotalMilliseconds}ms"); 80 | } 81 | }).Start(); 82 | } 83 | } 84 | 85 | private void button5_Click(object sender, EventArgs e) 86 | { 87 | ib?.Dispose(); 88 | } 89 | 90 | 91 | } 92 | } 93 | -------------------------------------------------------------------------------- /IdleBus/IdleBus`1.ItemInfo.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Concurrent; 3 | using System.Collections.Generic; 4 | using System.Diagnostics; 5 | using System.Text; 6 | using System.Threading; 7 | 8 | partial class IdleBus 9 | { 10 | 11 | class ItemInfo : IDisposable 12 | { 13 | internal IdleBus ib; 14 | internal TKey key; 15 | internal Func create; 16 | internal TimeSpan idle; 17 | internal DateTime createTime; 18 | internal DateTime lastActiveTime; 19 | internal long activeCounter; 20 | internal int releaseErrorCounter; 21 | 22 | internal TValue value { get; private set; } 23 | internal TValue firstValue { get; private set; } 24 | internal bool IsRegisterError { get; private set; } 25 | object valueLock = new object(); 26 | 27 | internal TValue GetOrCreate() 28 | { 29 | if (isdisposed == true) return null; 30 | if (value == null) 31 | { 32 | var iscreate = false; 33 | var now = DateTime.Now; 34 | try 35 | { 36 | lock (valueLock) 37 | { 38 | if (isdisposed == true) return null; 39 | if (value == null) 40 | { 41 | value = create(); 42 | createTime = DateTime.Now; 43 | Interlocked.Increment(ref ib._usageQuantity); 44 | iscreate = true; 45 | } 46 | else 47 | { 48 | return value; 49 | } 50 | } 51 | if (iscreate) 52 | { 53 | if (value != null) 54 | { 55 | if (firstValue == null) firstValue = value; //记录首次值 56 | else if (firstValue == value) IsRegisterError = true; //第二次与首次相等，注册姿势错误 57 | } 58 | ib.OnNotice(new NoticeEventArgs(NoticeType.AutoCreate, key, null, $"{key} 实例+++创建成功，耗时 {DateTime.Now.Subtract(now).TotalMilliseconds}ms，{ib._usageQuantity}/{ib.Quantity}")); 59 | } 60 | } 61 | catch (Exception ex) 62 | { 63 | ib.OnNotice(new NoticeEventArgs(NoticeType.AutoCreate, key, ex, $"{key} 实例+++创建失败：{ex.Message}")); 64 | throw ex; 65 | } 66 | } 67 | lastActiveTime = DateTime.Now; 68 | Interlocked.Increment(ref activeCounter); 69 | return value; 70 | } 71 | 72 | internal bool Release(Func lockInIf) 73 | { 74 | lock (valueLock) 75 | { 76 | if (value != null && lockInIf()) 77 | { 78 | value?.Dispose(); 79 | value = null; 80 | Interlocked.Decrement(ref ib._usageQuantity); 81 | Interlocked.Exchange(ref activeCounter, 0); 82 | return true; 83 | } 84 | } 85 | return false; 86 | } 87 | 88 | ~ItemInfo() => Dispose(); 89 | bool isdisposed = false; 90 | public void Dispose() 91 | { 92 | if (isdisposed) return; 93 | lock (valueLock) 94 | { 95 | if (isdisposed) return; 96 | isdisposed = true; 97 | } 98 | try 99 | { 100 | Release(() => true); 101 | } 102 | catch { } 103 | } 104 | 105 | } 106 | 107 | } -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_WinformNet40/Examples_IdleBus_WinformNet40.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Debug 6 | AnyCPU 7 | {0FC8305A-114E-4792-9226-726FE3651CB0} 8 | WinExe 9 | Examples_IdleBus_WinformNet40 10 | Examples_IdleBus_WinformNet40 11 | v4.0 12 | 512 13 | true 14 | 15 | 16 | AnyCPU 17 | true 18 | full 19 | false 20 | bin\Debug\ 21 | DEBUG;TRACE 22 | prompt 23 | 4 24 | 25 | 26 | AnyCPU 27 | pdbonly 28 | true 29 | bin\Release\ 30 | TRACE 31 | prompt 32 | 4 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | Form 49 | 50 | 51 | Form1.cs 52 | 53 | 54 | 55 | 56 | Form1.cs 57 | 58 | 59 | ResXFileCodeGenerator 60 | Resources.Designer.cs 61 | Designer 62 | 63 | 64 | True 65 | Resources.resx 66 | True 67 | 68 | 69 | SettingsSingleFileGenerator 70 | Settings.Designer.cs 71 | 72 | 73 | True 74 | Settings.settings 75 | True 76 | 77 | 78 | 79 | 80 | {ab044be0-8676-481f-a454-3ad68b8bbe54} 81 | IdleBus 82 | 83 | 84 | 85 | -------------------------------------------------------------------------------- /IdleBus.sln: -------------------------------------------------------------------------------- 1 | 2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.0.31903.59 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "IdleBus", "IdleBus\IdleBus.csproj", "{AB044BE0-8676-481F-A454-3AD68B8BBE54}" 7 | EndProject 8 | Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Docs", "Docs", "{D820DCDF-5AE7-4B8E-9D1F-A5DDE89AFD7C}" 9 | ProjectSection(SolutionItems) = 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Release|Any CPU 49 | EndGlobalSection 50 | GlobalSection(SolutionProperties) = preSolution 51 | HideSolutionNode = FALSE 52 | EndGlobalSection 53 | GlobalSection(NestedProjects) = preSolution 54 | {A040B309-F980-43EF-B62F-0EDA2D031DA2} = {0832562A-80F3-4513-AC2F-4B4DFBB04F57} 55 | {0FC8305A-114E-4792-9226-726FE3651CB0} = {0832562A-80F3-4513-AC2F-4B4DFBB04F57} 56 | {D359491B-5B34-408F-84A1-A3646A74BF54} = {0832562A-80F3-4513-AC2F-4B4DFBB04F57} 57 | EndGlobalSection 58 | GlobalSection(ExtensibilityGlobals) = postSolution 59 | SolutionGuid = {23CB00AF-59EE-4479-A279-0A3AECA31FF5} 60 | EndGlobalSection 61 | EndGlobal 62 | -------------------------------------------------------------------------------- /readme.md: -------------------------------------------------------------------------------- 1 | IdleBus 空闲对象管理容器，有效组织对象重复利用，自动创建、销毁，解决【实例】过多且长时间占用的问题。有时候想做一个单例对象重复使用提升性能，但是定义多了，有的又可能一直空闲着占用资源。 2 | 3 | 专门解决：又想重复利用，又想少占资源的场景。 4 | 5 | ## 快速开始 6 | 7 | > dotnet add package IdleBus 8 | 9 | ```csharp 10 | class Program 11 | { 12 | static void Main(string[] args) 13 | { 14 | //超过20秒没有使用，就销毁【实例】 15 | var ib = new IdleBus(TimeSpan.FromSeconds(20)); 16 | ib.Notice += (_, e) => 17 | { 18 | Console.WriteLine(" " + e.Log); 19 | 20 | if (e.NoticeType == IdleBus.NoticeType.AutoRelease) 21 | Console.WriteLine($" [{DateTime.Now.ToString("g")}] {e.Key} 空闲被回收"); 22 | }; 23 | 24 | while (true) 25 | { 26 | Console.WriteLine("输入 > "); 27 | var line = Console.ReadLine().Trim(); 28 | if (string.IsNullOrEmpty(line)) break; 29 | 30 | // 注册 31 | ib.TryRegister(line, () => new TestInfo()); 32 | 33 | // 第一次：创建 34 | TestInfo item = ib.Get(line) as TestInfo; 35 | 36 | // 第二次：直接获取，长驻内存直到空闲销毁 37 | item = ib.Get(line) as TestInfo; 38 | } 39 | 40 | ib.Dispose(); 41 | } 42 | 43 | class TestInfo : IDisposable 44 | { 45 | public void Dispose() { } 46 | } 47 | } 48 | ``` 49 | 50 | 输出： 51 | 52 | ```shell 53 | 输入 > 54 | aa1 55 | aa1 注册成功，0/1 56 | aa1 实例+++创建成功，耗时 0.1658ms，1/1 57 | aa1 实例获取成功 1次 58 | aa1 实例获取成功 2次 59 | 输入 > 60 | aa2 61 | aa2 注册成功，1/2 62 | aa2 实例+++创建成功，耗时 0.0065ms，2/2 63 | aa2 实例获取成功 1次 64 | aa2 实例获取成功 2次 65 | 输入 > 66 | aa3 67 | aa3 注册成功，2/3 68 | aa3 实例+++创建成功，耗时 0.0073ms，3/3 69 | aa3 实例获取成功 1次 70 | aa3 实例获取成功 2次 71 | 输入 > 72 | aa1 ---自动释放成功，耗时 0.7607ms，2/3 73 | [2020/1/7 14:22] aa1 空闲被回收 74 | aa2 ---自动释放成功，耗时 0.0289ms，1/3 75 | [2020/1/7 14:22] aa2 空闲被回收 76 | aa3 ---自动释放成功，耗时 0.0046ms，0/3 77 | [2020/1/7 14:22] aa3 空闲被回收 78 | ``` 79 | 80 | ## API 81 | 82 | new IdleBus 可使用任何 IDisposable 实现类【混合注入】 83 | 84 | new IdleBus\ 可【自定义类型】注入，如： new IdleBus\() 85 | 86 | | Method | 说明 | 87 | | -- | -- | 88 | | void Ctor() | 创建空闲容器 | 89 | | void Ctor(TimeSpan idle) | 指定空闲时间，创建空闲容器 | 90 | | IdleBus Register(string key, Func\ create) | 注册（其类型必须实现 IDisposable） | 91 | | IdleBus Register(string key, Func\ create, TimeSpan idle) | 注册，单独设置空间时间 | 92 | | T Get(string key) | 获取【实例】（线程安全），key 未注册时，抛出异常 | 93 | | List\ GetAll() | 获得所有【实例】（线程安全） | 94 | | bool Exists(string key) | 判断 key 是否已注册 | 95 | | void Remove(string key) | 删除已注册的 | 96 | | int Quantity | 注册数量 | 97 | | int UsageQuantity | 已创建【实例】数量 | 98 | | event Notice | 容器内部的变化通知，如：自动释放、自动创建 | 99 | 100 | > 注意：Register 参数 create 属于对象创建器，切莫直接返回外部创建好的对象 101 | 102 | ```csharp 103 | var obj = new Xxx(); 104 | ib.Register("key01", () => obj); //错了，错了，错了 105 | 106 | ib.Register("key01", () => new Xxx()); //正确 107 | ``` 108 | 109 | ## 设计思路 110 | 111 | IdleBus 和对象池不同，对象池是队列设计，我们是 KV 设计。 112 | 113 | IdleBus 又像缓存，又像池，又像容器，无法具体描述。 114 | 115 | 1、注册：向容器中注册对象，指定 key + 创建器 + 空闲时间，可以注册和管理任何实现 IDisposable 接口对象 116 | 117 | 2、获取对象：开发人员使用 key 作为参数调用方法获得对象 118 | 119 | - 存在时，直接返回 120 | - 不存在时，创建对象（保证线程安全） 121 | 122 | 3、过期销毁：当容器中有实例运行，会启用后台线程定时检查，超过空闲时间设置的将被释放（Dispose） 123 | 124 | ## 使用场景 125 | 126 | - 多租户按数据库区分的场景，假设有1000个租户； 127 | - Redis 客户端需要操作 N 个 服务器； 128 | - Socket 长连接闲置后自动释放； 129 | - 管理 1000个 rabbitmq 服务器的客户端； 130 | - [IdleScheduler](https://github.com/2881099/IdleBus/tree/master/IdleScheduler) 利用 IdleBus 实现的轻量定时任务调度； 131 | - 等等等。。。 132 | 133 | 举例：向 1000个 (不同的、不同的、不同的) rabbitmq 服务器发送消息，正常有两种做法： 134 | 135 | 1、定义 1000 个静态 client 一直 open 着，重复利用 136 | 137 | 缺点：1000个里面不是每个都活跃，然后也一直占用着资源 138 | 139 | 2、每次发送消息的时候 open，使用完再 close 140 | 141 | ```csharp 142 | new client("mq_0001server").pub(...).close(); 143 | new client("mq_0002server").pub(...).close(); 144 | new client("mq_0003server").pub(...).close(); 145 | new client("mq_0004server").pub(...).close(); 146 | ``` 147 | 148 | 缺点：性能损耗会比较大，socket 没有有效的重复利用 149 | -------------------------------------------------------------------------------- /IdleBus/IdleBus`1.ThreadScan.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Concurrent; 3 | using System.Collections.Generic; 4 | using System.Diagnostics; 5 | using System.Linq; 6 | using System.Text; 7 | using System.Threading; 8 | 9 | partial class IdleBus 10 | { 11 | bool _threadStarted = false; 12 | object _threadStartedLock = new object(); 13 | 14 | void ThreadScanWatch(ItemInfo item) 15 | { 16 | var startThread = false; 17 | if (_threadStarted == false) 18 | lock (_threadStartedLock) 19 | if (_threadStarted == false) 20 | startThread = _threadStarted = true; 21 | 22 | if (startThread) 23 | new Thread(() => 24 | { 25 | this.ThreadScanWatchHandler(); 26 | lock (_threadStartedLock) 27 | _threadStarted = false; 28 | }).Start(); 29 | } 30 | 31 | 32 | public class TimeoutScanOptions 33 | { 34 | /// 35 | /// 扫描线程间隔（默认值：2秒） 36 | /// 37 | public TimeSpan Interval { get; set; } = TimeSpan.FromSeconds(2); 38 | /// 39 | /// 扫描线程空闲多少秒退出（默认值：10秒） 40 | /// 41 | public int QuitWaitSeconds { get; set; } = 10; 42 | /// 43 | /// 扫描的每批数量（默认值：512） 44 | /// 可防止注册数量太多时导致 CPU 占用过高 45 | /// 46 | public int BatchQuantity { get; set; } = 512; 47 | /// 48 | /// 达到扫描的每批数量时，线程等待（默认值：1秒） 49 | /// 50 | public TimeSpan BatchQuantityWait { get; set; } = TimeSpan.FromSeconds(1); 51 | } 52 | /// 53 | /// 扫描过期对象的设置 54 | /// 机制：当窗口里有存活对象时，扫描线程才会开启（只开启一个线程）。 55 | /// 连续多少秒都没存活的对象时，才退出扫描。 56 | /// 57 | public TimeoutScanOptions ScanOptions { get; } = new TimeoutScanOptions(); 58 | 59 | void ThreadScanWatchHandler() 60 | { 61 | var couter = 0; 62 | while (IsDisposed == false) 63 | { 64 | if (ThreadJoin(ScanOptions.Interval) == false) return; 65 | this.InternalRemoveDelayHandler(); 66 | 67 | if (_usageQuantity == 0) 68 | { 69 | couter = couter + (int)ScanOptions.Interval.TotalSeconds; 70 | if (couter < ScanOptions.QuitWaitSeconds) continue; 71 | break; 72 | } 73 | couter = 0; 74 | 75 | var keys = _dic.Keys.ToArray(); 76 | long keysIndex = 0; 77 | foreach (var key in keys) 78 | { 79 | if (IsDisposed) return; 80 | ++keysIndex; 81 | if (ScanOptions.BatchQuantity > 0 && keysIndex % ScanOptions.BatchQuantity == 0) 82 | { 83 | if (ThreadJoin(ScanOptions.BatchQuantityWait) == false) return; 84 | } 85 | 86 | if (_dic.TryGetValue(key, out var item) == false) continue; 87 | if (item.value == null) continue; 88 | if (DateTime.Now.Subtract(item.lastActiveTime) <= item.idle) continue; 89 | try 90 | { 91 | var now = DateTime.Now; 92 | if (item.Release(() => DateTime.Now.Subtract(item.lastActiveTime) > item.idle && item.lastActiveTime >= item.createTime)) 93 | //防止并发有其他线程创建，最后活动时间 > 创建时间 94 | this.OnNotice(new NoticeEventArgs(NoticeType.AutoRelease, item.key, null, $"{key} ---自动释放成功，耗时 {DateTime.Now.Subtract(now).TotalMilliseconds}ms，{_usageQuantity}/{Quantity}")); 95 | } 96 | catch (Exception ex) 97 | { 98 | this.OnNotice(new NoticeEventArgs(NoticeType.AutoRelease, item.key, ex, $"{key} ---自动释放执行出错：{ex.Message}")); 99 | } 100 | } 101 | } 102 | } 103 | 104 | bool ThreadJoin(TimeSpan interval) 105 | { 106 | if (interval <= TimeSpan.Zero) return true; 107 | var milliseconds = interval.TotalMilliseconds; 108 | var seconds = Math.Floor(milliseconds / 1000); 109 | milliseconds = milliseconds - seconds * 1000; 110 | 111 | for (var a = 0; a < seconds; a++) 112 | { 113 | Thread.CurrentThread.Join(TimeSpan.FromSeconds(1)); 114 | if (IsDisposed) return false; 115 | } 116 | for (var a = 0; a < milliseconds; a += 200) 117 | { 118 | Thread.CurrentThread.Join(TimeSpan.FromMilliseconds(200)); 119 | if (IsDisposed) return false; 120 | } 121 | return true; 122 | } 123 | } -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | 4 | # User-specific files 5 | *.suo 6 | *.user 7 | *.userosscache 8 | *.sln.docstates 9 | 10 | # User-specific files (MonoDevelop/Xamarin Studio) 11 | *.userprefs 12 | 13 | # Build results 14 | [Dd]ebug/ 15 | [Dd]ebugPublic/ 16 | [Rr]elease/ 17 | [Rr]eleases/ 18 | [Xx]64/ 19 | [Xx]86/ 20 | bld/ 21 | [Bb]in/ 22 | [Oo]bj/ 23 | 24 | # Visual Studio 2015 cache/options directory 25 | .vs/ 26 | # Uncomment if you have tasks that create the project's static files in wwwroot 27 | 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not want to checkin 144 | # your web deploy settings because they may include unencrypted 145 | # passwords 146 | #*.pubxml 147 | *.publishproj 148 | 149 | # NuGet Packages 150 | *.nupkg 151 | # The packages folder can be ignored because of Package Restore 152 | **/packages/* 153 | # except build/, which is used as an MSBuild target. 154 | !**/packages/build/ 155 | # Uncomment if necessary however generally it will be regenerated when needed 156 | #!**/packages/repositories.config 157 | # NuGet v3's project.json files produces more ignoreable files 158 | *.nuget.props 159 | *.nuget.targets 160 | 161 | # Microsoft Azure Build Output 162 | csx/ 163 | *.build.csdef 164 | 165 | # Microsoft Azure Emulator 166 | ecf/ 167 | rcf/ 168 | 169 | # Microsoft Azure ApplicationInsights config file 170 | ApplicationInsights.config 171 | 172 | # Windows Store app package directory 173 | AppPackages/ 174 | BundleArtifacts/ 175 | 176 | # Visual Studio cache files 177 | # files ending in .cache can be ignored 178 | *.[Cc]ache 179 | # but keep track of directories ending in .cache 180 | !*.[Cc]ache/ 181 | 182 | # Others 183 | ClientBin/ 184 | [Ss]tyle[Cc]op.* 185 | ~$* 186 | *~ 187 | *.dbmdl 188 | *.dbproj.schemaview 189 | *.pfx 190 | *.publishsettings 191 | node_modules/ 192 | orleans.codegen.cs 193 | 194 | # RIA/Silverlight projects 195 | Generated_Code/ 196 | 197 | # Backup & report files from converting an old project file 198 | # to a newer Visual Studio version. Backup files are not needed, 199 | # because we have git ;-) 200 | _UpgradeReport_Files/ 201 | Backup*/ 202 | UpgradeLog*.XML 203 | UpgradeLog*.htm 204 | 205 | # SQL Server files 206 | *.mdf 207 | *.ldf 208 | 209 | # Business Intelligence projects 210 | *.rdl.data 211 | *.bim.layout 212 | *.bim_*.settings 213 | 214 | # Microsoft Fakes 215 | FakesAssemblies/ 216 | 217 | # GhostDoc plugin setting file 218 | *.GhostDoc.xml 219 | 220 | # Node.js Tools for Visual Studio 221 | .ntvs_analysis.dat 222 | 223 | # Visual Studio 6 build log 224 | *.plg 225 | 226 | # Visual Studio 6 workspace options file 227 | *.opt 228 | 229 | # Visual Studio LightSwitch build output 230 | **/*.HTMLClient/GeneratedArtifacts 231 | **/*.DesktopClient/GeneratedArtifacts 232 | **/*.DesktopClient/ModelManifest.xml 233 | **/*.Server/GeneratedArtifacts 234 | **/*.Server/ModelManifest.xml 235 | _Pvt_Extensions 236 | 237 | # LightSwitch generated files 238 | GeneratedArtifacts/ 239 | ModelManifest.xml 240 | 241 | # Paket dependency manager 242 | .paket/paket.exe 243 | 244 | # FAKE - F# Make 245 | .fake/ -------------------------------------------------------------------------------- /IdleBus/IdleBus.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | IdleBus 5 | 6 | 7 | 8 | 9 | 空闲对象容器管理，可实现自动创建、销毁、扩张收缩，解决【实例】长时间占用问题 10 | 11 | 12 | 13 | 14 | 按空闲时间1分钟，创建空闲容器 15 | 16 | 17 | 18 | 19 | 指定空闲时间、创建空闲容器 20 | 21 | 空闲时间 22 | 23 | 24 | 25 | 空闲对象容器管理，可实现自动创建、销毁、扩张收缩，解决【实例】长时间占用问题 26 | 27 | 28 | 29 | 30 | 按空闲时间1分钟，创建空闲容器 31 | 32 | 33 | 34 | 35 | 指定空闲时间、创建空闲容器 36 | 37 | 空闲时间 38 | 39 | 40 | 41 | 空闲对象容器管理，可实现自动创建、销毁、扩张收缩，解决【实例】长时间占用问题 42 | 43 | 44 | 45 | 46 | 按空闲时间1分钟，创建空闲容器 47 | 48 | 49 | 50 | 51 | 指定空闲时间、创建空闲容器 52 | 53 | 空闲时间 54 | 55 | 56 | 57 | 根据 key 获得或创建【实例】（线程安全） 58 | key 未注册时，抛出异常 59 | 60 | 61 | 62 | 63 | 64 | 65 | 获得或创建所有【实例】（线程安全） 66 | 67 | 68 | 69 | 70 | 71 | 获得所有已注册的 key（线程安全） 72 | 73 | 74 | 75 | 76 | 77 | 判断 key 是否注册 78 | 79 | 80 | 81 | 82 | 83 | 84 | 注册【实例】 85 | 86 | 87 | 实例创建方法 88 | 89 | 90 | 91 | 92 | 已创建【实例】数量 93 | 94 | 95 | 96 | 97 | 注册数量 98 | 99 | 100 | 101 | 102 | 通知事件 103 | 104 | 105 | 106 | 107 | 执行 Register 方法的时候 108 | 109 | 110 | 111 | 112 | 执行 Remove 方法的时候，注意：实际会延时释放【实例】 113 | 114 | 115 | 116 | 117 | 自动创建【实例】的时候 118 | 119 | 120 | 121 | 122 | 自动释放不活跃【实例】的时候 123 | 124 | 125 | 126 | 127 | 获取【实例】的时候 128 | 129 | 130 | 131 | 132 | 扫描线程间隔（默认值：2秒） 133 | 134 | 135 | 136 | 137 | 扫描线程空闲多少秒退出（默认值：10秒） 138 | 139 | 140 | 141 | 142 | 扫描的每批数量（默认值：512） 143 | 可防止注册数量太多时导致 CPU 占用过高 144 | 145 | 146 | 147 | 148 | 达到扫描的每批数量时，线程等待（默认值：1秒） 149 | 150 | 151 | 152 | 153 | 扫描过期对象的设置 154 | 机制：当窗口里有存活对象时，扫描线程才会开启（只开启一个线程）。 155 | 连续多少秒都没存活的对象时，才退出扫描。 156 | 157 | 158 | 159 | 160 | -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_WinformNet40/Properties/Resources.resx: -------------------------------------------------------------------------------- 1 | 2 | 3 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | text/microsoft-resx 107 | 108 | 109 | 2.0 110 | 111 | 112 | System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 113 | 114 | 115 | System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 116 | 117 | -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_WinformNet40/Form1.resx: -------------------------------------------------------------------------------- 1 | 2 | 3 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | text/microsoft-resx 110 | 111 | 112 | 2.0 113 | 114 | 115 | System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 116 | 117 | 118 | System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 119 | 120 | -------------------------------------------------------------------------------- /Examples/Examples_IdleBus_WinformNet40/Form1.Designer.cs: -------------------------------------------------------------------------------- 1 | namespace Examples_IdleBus_WinformNet40 2 | { 3 | partial class Form1 4 | { 5 | /// 6 | /// 必需的设计器变量。 7 | /// 8 | private System.ComponentModel.IContainer components = null; 9 | 10 | /// 11 | /// 清理所有正在使用的资源。 12 | /// 13 | /// 如果应释放托管资源，为 true；否则为 false。 14 | protected override void Dispose(bool disposing) 15 | { 16 | if (disposing && (components != null)) 17 | { 18 | components.Dispose(); 19 | } 20 | base.Dispose(disposing); 21 | } 22 | 23 | #region Windows 窗体设计器生成的代码 24 | 25 | /// 26 | /// 设计器支持所需的方法 - 不要修改 27 | /// 使用代码编辑器修改此方法的内容。 28 | /// 29 | private void InitializeComponent() 30 | { 31 | this.button1 = new System.Windows.Forms.Button(); 32 | this.button2 = new System.Windows.Forms.Button(); 33 | this.button3 = new System.Windows.Forms.Button(); 34 | this.button4 = new System.Windows.Forms.Button(); 35 | this.button5 = new System.Windows.Forms.Button(); 36 | this.label1 = new System.Windows.Forms.Label(); 37 | this.button6 = new System.Windows.Forms.Button(); 38 | this.SuspendLayout(); 39 | // 40 | // button1 41 | // 42 | this.button1.Location = new System.Drawing.Point(53, 119); 43 | this.button1.Name = "button1"; 44 | this.button1.Size = new System.Drawing.Size(138, 23); 45 | this.button1.TabIndex = 0; 46 | this.button1.Text = "IdleBus.Test()"; 47 | this.button1.UseVisualStyleBackColor = true; 48 | this.button1.Click += new System.EventHandler(this.button1_Click); 49 | // 50 | // button2 51 | // 52 | this.button2.Location = new System.Drawing.Point(147, 271); 53 | this.button2.Name = "button2"; 54 | this.button2.Size = new System.Drawing.Size(183, 23); 55 | this.button2.TabIndex = 1; 56 | this.button2.Text = "IdleBus.Get(key1)"; 57 | this.button2.UseVisualStyleBackColor = true; 58 | this.button2.Click += new System.EventHandler(this.button2_Click); 59 | // 60 | // button3 61 | // 62 | this.button3.Location = new System.Drawing.Point(147, 300); 63 | this.button3.Name = "button3"; 64 | this.button3.Size = new System.Drawing.Size(183, 23); 65 | this.button3.TabIndex = 2; 66 | this.button3.Text = "IdleBus.Get(key2)"; 67 | this.button3.UseVisualStyleBackColor = true; 68 | this.button3.Click += new System.EventHandler(this.button3_Click); 69 | // 70 | // button4 71 | // 72 | this.button4.Location = new System.Drawing.Point(147, 230); 73 | this.button4.Name = "button4"; 74 | this.button4.Size = new System.Drawing.Size(183, 23); 75 | this.button4.TabIndex = 3; 76 | this.button4.Text = "new IdleBus()"; 77 | this.button4.UseVisualStyleBackColor = true; 78 | this.button4.Click += new System.EventHandler(this.button4_Click); 79 | // 80 | // button5 81 | // 82 | this.button5.Location = new System.Drawing.Point(147, 408); 83 | this.button5.Name = "button5"; 84 | this.button5.Size = new System.Drawing.Size(183, 23); 85 | this.button5.TabIndex = 4; 86 | this.button5.Text = "IdleBus.Dispose()"; 87 | this.button5.UseVisualStyleBackColor = true; 88 | this.button5.Click += new System.EventHandler(this.button5_Click); 89 | // 90 | // label1 91 | // 92 | this.label1.AutoSize = true; 93 | this.label1.Font = new System.Drawing.Font("宋体", 15F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134))); 94 | this.label1.Location = new System.Drawing.Point(400, 289); 95 | this.label1.Name = "label1"; 96 | this.label1.Size = new System.Drawing.Size(75, 20); 97 | this.label1.TabIndex = 5; 98 | this.label1.Text = "label1"; 99 | // 100 | // button6 101 | // 102 | this.button6.Location = new System.Drawing.Point(147, 329); 103 | this.button6.Name = "button6"; 104 | this.button6.Size = new System.Drawing.Size(183, 23); 105 | this.button6.TabIndex = 6; 106 | this.button6.Text = "IdleBus.Get Concurrent"; 107 | this.button6.UseVisualStyleBackColor = true; 108 | this.button6.Click += new System.EventHandler(this.button6_Click); 109 | // 110 | // Form1 111 | // 112 | this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F); 113 | this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; 114 | this.ClientSize = new System.Drawing.Size(800, 450); 115 | this.Controls.Add(this.button6); 116 | this.Controls.Add(this.label1); 117 | this.Controls.Add(this.button5); 118 | this.Controls.Add(this.button4); 119 | this.Controls.Add(this.button3); 120 | this.Controls.Add(this.button2); 121 | this.Controls.Add(this.button1); 122 | this.Name = "Form1"; 123 | this.Text = "Form1"; 124 | this.Load += new System.EventHandler(this.Form1_Load); 125 | this.ResumeLayout(false); 126 | this.PerformLayout(); 127 | 128 | } 129 | 130 | #endregion 131 | 132 | private System.Windows.Forms.Button button1; 133 | private System.Windows.Forms.Button button2; 134 | private System.Windows.Forms.Button button3; 135 | private System.Windows.Forms.Button button4; 136 | private System.Windows.Forms.Button button5; 137 | private System.Windows.Forms.Label label1; 138 | private System.Windows.Forms.Button button6; 139 | } 140 | } 141 | 142 | -------------------------------------------------------------------------------- /IdleBus/IdleBus`1.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Concurrent; 3 | using System.Collections.Generic; 4 | using System.Diagnostics; 5 | using System.Linq; 6 | using System.Text; 7 | using System.Threading; 8 | 9 | /// 10 | /// 空闲对象容器管理，可实现自动创建、销毁、扩张收缩，解决【实例】长时间占用问题 11 | /// 12 | public partial class IdleBus : IDisposable where TValue : class, IDisposable 13 | { 14 | 15 | ConcurrentDictionary _dic; 16 | ConcurrentDictionary _removePending; 17 | object _usageLock = new object(); 18 | int _usageQuantity; 19 | TimeSpan _defaultIdle; 20 | 21 | /// 22 | /// 按空闲时间1分钟，创建空闲容器 23 | /// 24 | public IdleBus() : this(TimeSpan.FromMinutes(1)) { } 25 | 26 | /// 27 | /// 指定空闲时间、创建空闲容器 28 | /// 29 | /// 空闲时间 30 | public IdleBus(TimeSpan idle) 31 | { 32 | _dic = new ConcurrentDictionary(); 33 | _removePending = new ConcurrentDictionary(); 34 | _usageQuantity = 0; 35 | _defaultIdle = idle; 36 | } 37 | 38 | /// 39 | /// 根据 key 获得或创建【实例】（线程安全） 40 | /// key 未注册时，抛出异常 41 | /// 42 | /// 43 | /// 44 | public TValue Get(TKey key) 45 | { 46 | if (IsDisposed) throw new Exception($"{key} 实例获取失败，{nameof(IdleBus)} 对象已释放"); 47 | if (_dic.TryGetValue(key, out var item) == false) 48 | { 49 | var error = new Exception($"{key} 实例获取失败，因为没有注册"); 50 | this.OnNotice(new NoticeEventArgs(NoticeType.Get, key, error, error.Message)); 51 | throw error; 52 | } 53 | 54 | var now = DateTime.Now; 55 | var ret = item.GetOrCreate(); 56 | if (item.IsRegisterError) 57 | { 58 | this.OnNotice(new NoticeEventArgs(NoticeType.Get, key, null, $"{key} 实例获取失败：检测到注册实例的参数 create 返回了相同的实例，应该每次返回新实例，正确：() => new Xxx()，错误：() => 变量")); 59 | throw new ArgumentException($"{key} 实例获取失败：检测到注册实例的参数 create 返回了相同的实例，应该每次返回新实例，正确：() => new Xxx()，错误：() => 变量"); 60 | } 61 | var tsms = DateTime.Now.Subtract(now).TotalMilliseconds; 62 | this.OnNotice(new NoticeEventArgs(NoticeType.Get, key, null, $"{key} 实例获取成功 {item.activeCounter}次{(tsms > 5 ? $"，耗时 {tsms}ms" : "")}")); 63 | //this.ThreadLiveWatch(item); //这种模式采用 Sorted 性能会比较慢 64 | this.ThreadScanWatch(item); //这种在后台扫描 _dic，定时要求可能没那么及时 65 | return ret; 66 | } 67 | 68 | /// 69 | /// 获得或创建所有【实例】（线程安全） 70 | /// 71 | /// 72 | public List GetAll() => _dic.Keys.ToArray().Select(a => Get(a)).ToList(); 73 | 74 | /// 75 | /// 获得所有已注册的 key（线程安全） 76 | /// 77 | /// 78 | public TKey[] GetKeys(Func filter = null) 79 | { 80 | if (filter == null) return _dic.Keys.ToArray(); 81 | return _dic.Keys.ToArray().Where(key => _dic.TryGetValue(key, out var item) && filter(item.value)).ToArray(); 82 | } 83 | 84 | /// 85 | /// 判断 key 是否注册 86 | /// 87 | /// 88 | /// 89 | public bool Exists(TKey key) 90 | { 91 | if (key == null) return false; 92 | return _dic.ContainsKey(key); 93 | } 94 | 95 | /// 96 | /// 注册【实例】 97 | /// 98 | /// 99 | /// 实例创建方法 100 | /// 101 | public IdleBus Register(TKey key, Func create) 102 | { 103 | InternalRegister(key, create, null, true); 104 | return this; 105 | } 106 | public IdleBus Register(TKey key, Func create, TimeSpan idle) 107 | { 108 | InternalRegister(key, create, idle, true); 109 | return this; 110 | } 111 | public bool TryRegister(TKey key, Func create) => InternalRegister(key, create, null, false); 112 | public bool TryRegister(TKey key, Func create, TimeSpan idle) => InternalRegister(key, create, idle, false); 113 | 114 | public bool TryRemove(TKey key, bool now = false) => InternalRemove(key, now, false); 115 | 116 | /// 117 | /// 已创建【实例】数量 118 | /// 119 | public int UsageQuantity => _usageQuantity; 120 | /// 121 | /// 注册数量 122 | /// 123 | public int Quantity => _dic.Count; 124 | /// 125 | /// 通知事件 126 | /// 127 | public event EventHandler Notice; 128 | 129 | bool InternalRegister(TKey key, Func create, TimeSpan? idle, bool isThrow) 130 | { 131 | if (IsDisposed) 132 | { 133 | if (isThrow) throw new Exception($"{key} 注册失败，{nameof(IdleBus)} 对象已释放"); 134 | return false; 135 | } 136 | var error = new Exception($"{key} 注册失败，请勿重复注册"); 137 | if (_dic.ContainsKey(key)) 138 | { 139 | this.OnNotice(new NoticeEventArgs(NoticeType.Register, key, error, error.Message)); 140 | if (isThrow) throw error; 141 | return false; 142 | } 143 | 144 | if (idle == null) idle = _defaultIdle; 145 | //if (idle < TimeSpan.FromSeconds(5)) 146 | //{ 147 | // var limitError = new Exception($"{key} 注册失败，{nameof(idle)} 参数必须 >= 5秒"); 148 | // this.OnNotice(new NoticeEventArgs(NoticeType.Register, key, limitError, limitError.Message)); 149 | // if (isThrow) throw error; 150 | // return this; 151 | //} 152 | var added = _dic.TryAdd(key, new ItemInfo 153 | { 154 | ib = this, 155 | key = key, 156 | create = create, 157 | idle = idle.Value, 158 | }); 159 | if (added == false) 160 | { 161 | this.OnNotice(new NoticeEventArgs(NoticeType.Register, key, error, error.Message)); 162 | if (isThrow) throw error; 163 | return false; 164 | } 165 | this.OnNotice(new NoticeEventArgs(NoticeType.Register, key, null, $"{key} 注册成功，{_usageQuantity}/{Quantity}")); 166 | return true; 167 | } 168 | bool InternalRemove(TKey key, bool isNow, bool isThrow) 169 | { 170 | if (IsDisposed) 171 | { 172 | if (isThrow) throw new Exception($"{key} 删除失败 ，{nameof(IdleBus)} 对象已释放"); 173 | return false; 174 | } 175 | if (_dic.TryRemove(key, out var item) == false) 176 | { 177 | var error = new Exception($"{key} 删除失败 ，因为没有注册"); 178 | this.OnNotice(new NoticeEventArgs(NoticeType.Remove, key, error, error.Message)); 179 | if (isThrow) throw error; 180 | return false; 181 | } 182 | 183 | Interlocked.Exchange(ref item.releaseErrorCounter, 0); 184 | if (isNow) 185 | { 186 | item.Release(() => true); 187 | this.OnNotice(new NoticeEventArgs(NoticeType.Remove, item.key, null, $"{key} 删除成功，{_usageQuantity}/{Quantity}")); 188 | return true; 189 | } 190 | 191 | item.lastActiveTime = DateTime.Now; 192 | if (item.value == null) item.lastActiveTime = DateTime.Now.Subtract(item.idle).AddSeconds(-60); //延时删除 193 | _removePending.TryAdd(Guid.NewGuid().ToString(), item); 194 | this.OnNotice(new NoticeEventArgs(NoticeType.Remove, item.key, null, $"{key} 删除成功，并且已标记为延时释放，{_usageQuantity}/{Quantity}")); 195 | return true; 196 | } 197 | void InternalRemoveDelayHandler() 198 | { 199 | //处理延时删除 200 | var removeKeys = _removePending.Keys; 201 | foreach (var removeKey in removeKeys) 202 | { 203 | if (_removePending.TryGetValue(removeKey, out var removeItem) == false) continue; 204 | if (DateTime.Now.Subtract(removeItem.lastActiveTime) <= removeItem.idle) continue; 205 | try 206 | { 207 | removeItem.Release(() => true); 208 | } 209 | catch (Exception ex) 210 | { 211 | var tmp1 = Interlocked.Increment(ref removeItem.releaseErrorCounter); 212 | this.OnNotice(new NoticeEventArgs(NoticeType.Remove, removeItem.key, ex, $"{removeKey} ---延时释放执行出错({tmp1}次)：{ex.Message}")); 213 | if (tmp1 < 3) 214 | continue; 215 | } 216 | removeItem.Dispose(); 217 | _removePending.TryRemove(removeKey, out var oldItem); 218 | } 219 | } 220 | 221 | void OnNotice(NoticeEventArgs e) 222 | { 223 | this.Notice?.Invoke(this, e); 224 | } 225 | 226 | #region Dispose 227 | ~IdleBus() => Dispose(); 228 | public bool IsDisposed { get; private set; } 229 | object isdisposedLock = new object(); 230 | public void Dispose() 231 | { 232 | if (IsDisposed) return; 233 | lock (isdisposedLock) 234 | { 235 | if (IsDisposed) return; 236 | IsDisposed = true; 237 | } 238 | foreach (var item in _removePending.Values) item.Dispose(); 239 | foreach (var item in _dic.Values) item.Dispose(); 240 | 241 | _removePending.Clear(); 242 | _dic.Clear(); 243 | _usageQuantity = 0; 244 | } 245 | #endregion 246 | } 247 | --------------------------------------------------------------------------------