初始化 monorepo: Go后端(7微服务) + Unity客户端(9模块) + 启动器 HTML5原型: Three.js 3D体素世界, Perlin噪声地形, 原版材质, 22种方块 Minecraft创造模式背包: 双栏布局, 拖拽移动物品, 方向性元件引脚 AI助搭策划文档 + 客户端/服务端骨架 + Docker Compose + CI
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using System;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows;
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namespace PCL.Core.App.IoC;
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partial class Lifecycle
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{
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private static DateTime? _countRunningStart;
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private static bool _isApplicationStarted = false;
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private static bool _isLoadingStarted = false;
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private static bool _isWindowCreated = false;
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private static bool _hasRequestedStopLoading = false;
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/// <summary>
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/// [请勿调用] 处理未捕获异常流程
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/// </summary>
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/// <param name="ex">异常对象</param>
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public static void OnException(object ex)
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{
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Context.Fatal("未捕获的异常", ex as Exception);
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}
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/// <summary>
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/// [请勿调用] 程序初始化流程
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/// </summary>
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public static void OnInitialize()
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{
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// 检测重复调用
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if (_isApplicationStarted) return;
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_isApplicationStarted = true;
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// 修改 STA 线程名
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Thread.CurrentThread.Name = "STA";
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// 注册全局事件
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AppDomain.CurrentDomain.UnhandledException += (_, e) => OnException(e.ExceptionObject);
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AppDomain.CurrentDomain.ProcessExit += (_, _) => _Exit();
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TaskScheduler.UnobservedTaskException += (_, e) =>
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{
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Context.Error("未观测到的异步任务异常", e.Exception);
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e.SetObserved();
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};
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// 添加系统服务
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_RunningServiceInfoMap["system"] = _SystemServiceInfo;
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// 实例化并存储手动服务
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foreach (var service in _GetServiceTypes(LifecycleState.Manual))
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{
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var instance = _CreateService(service);
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var identifier = instance.Identifier;
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if (_ManualServiceMap.TryAdd(identifier, instance)) continue;
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Context.Warn($"{_ServiceName(instance, LifecycleState.Manual)} 标识符重复，已跳过");
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}
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// 运行预加载服务
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_StartStateFlow(LifecycleState.BeforeLoading);
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if (_hasRequestedStopLoading) return;
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// 运行应用程序容器
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var statusCode = CurrentApplication.Run();
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if (!HasShutdownStarted) _Exit(statusCode);
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}
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/// <summary>
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/// [请勿调用] 组件加载流程
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/// </summary>
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public static void OnLoading()
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{
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// 检测重复调用
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if (_isLoadingStarted) return;
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_isLoadingStarted = true;
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// 运行加载阶段服务
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_StartStateFlow(LifecycleState.Loading, LifecycleState.WindowCreating);
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// 运行窗体
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CurrentApplication.MainWindow!.Show();
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}
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/// <summary>
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/// [请勿调用] 窗口创建结束流程
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/// </summary>
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public static void OnWindowCreated()
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{
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// 检测重复调用
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if (_isWindowCreated) return;
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_isWindowCreated = true;
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// 启动窗口流程后的服务项
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_StartStateFlow(LifecycleState.WindowCreated);
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_countRunningStart = DateTime.Now;
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_StartWorker(LifecycleState.Running, LifecycleState.Exiting, false);
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}
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private static bool _hasRequestedRestart = false;
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private static string? _requestRestartArguments;
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private static ILifecycleService? _requestRestartService;
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private static readonly object _ExitLock = new();
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/// <summary>
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/// WPF 应用程序容器，在 <see cref="LifecycleState.BeforeLoading"/> 阶段为空值
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/// </summary>
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public static Application CurrentApplication { get; set; } = null!;
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/// <summary>
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/// 是否正在关闭程序
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/// </summary>
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public static bool HasShutdownStarted { get; private set; } = false;
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/// <summary>
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/// 正在进行的关闭程序流程是否是强制关闭
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/// </summary>
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public static bool IsForceShutdown { get; private set; } = false;
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private static void _FatalExit()
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{
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ForceShutdown(-1);
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}
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private static void _Exit(int statusCode = 0)
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{
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lock (_ExitLock)
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{
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if (HasShutdownStarted) return;
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HasShutdownStarted = true;
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}
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// 结束 Running 计时
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if (_countRunningStart is { } start)
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{
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var countSpan = DateTime.Now - start;
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_LogStateCount(countSpan, LifecycleState.Running);
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}
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// 开始 Exiting 状态
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_StartStateFlow(LifecycleState.Exiting, count: false);
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// 停止服务
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Context.Debug("正在停止运行中的服务");
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ILifecycleLogService? logService = null;
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while (_StartedServiceStack.TryPop(out var service))
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{
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// 跳过已标记为停止的服务
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if (_RunningServiceInfoMap.TryGetValue(service.Identifier, out var info) && info.IsStopped) continue;
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// 跳过日志服务
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if (service is ILifecycleLogService ls)
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{
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Context.Trace($"已跳过日志服务: {_ServiceName(ls)}");
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logService = ls;
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continue;
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}
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// 执行停止流程
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_StopService(service, service.SupportAsync);
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}
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_WaitStoppingServiceTasks();
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if (logService is not null)
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{
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Context.Trace("退出过程已结束，正在停止日志服务");
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// 直接调用 StopAsync() 不使用常规停止实现 以保证正常情况下不会向等待区输出日志
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logService.StopAsync().ConfigureAwait(false).GetAwaiter().GetResult();
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Console.WriteLine("[Lifecycle] Log service stopped");
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}
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_SavePendingLogs();
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if (_hasRequestedRestart && _requestRestartService is { } s)
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{
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Console.WriteLine($"[Lifecycle] Requested by '{s.Identifier}', restarting the program...");
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_RunCurrentExecutable(_requestRestartArguments);
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}
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// 退出程序
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Console.WriteLine($"[Lifecycle] Exiting program with status: {statusCode}");
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// 执行正常退出
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if (statusCode == -1) Basics.CurrentProcess.Kill();
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else Environment.Exit(statusCode);
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// 保险起见，只要运行环境正常根本不可能执行到这里，但是永远都不能假设用户的环境是正常的
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Console.WriteLine("[Lifecycle] Warning! Abnormal behaviour, try to kill process 1s later.");
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Thread.Sleep(1000);
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_KillCurrentProcess();
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}
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/// <summary>
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/// 发起关闭程序流程。<br/>
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/// <see cref="LifecycleState.BeforeLoading"/> 状态请使用 <see cref="LifecycleContext.RequestExit"/>。
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/// </summary>
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/// <param name="statusCode">退出状态码 (返回值)</param>
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/// <param name="force">指定是否强制关闭，即不执行 WPF 标准关闭流程</param>
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/// <exception cref="InvalidOperationException">尝试在 <see cref="LifecycleState.BeforeLoading"/> 状态调用</exception>
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public static void Shutdown(int statusCode = 0, bool force = false)
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{
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if (CurrentState == LifecycleState.BeforeLoading) throw new InvalidOperationException();
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if (HasShutdownStarted) return;
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Context.Info(force ? "开始强制关闭程序" : "正在关闭程序");
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IsForceShutdown = force;
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if (force) _Exit(statusCode);
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else new Thread(() => _Exit(statusCode)) { Name = "Lifecycle/Shutdown" }.Start();
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}
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/// <summary>
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/// 强制关闭程序，不执行 WPF 标准关闭流程。
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/// </summary>
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/// <param name="statusCode">退出状态码 (返回值)</param>
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/// <exception cref="InvalidOperationException">尝试在 <see cref="LifecycleState.BeforeLoading"/> 时调用</exception>
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public static void ForceShutdown(int statusCode = 0) => Shutdown(statusCode, true);
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}
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