0.5.14

二次启动拦截，统一了生命进程API

LanMountainDesktop/Services/AppRestartService.cs

@@ -3,8 +3,7 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
 using System.Reflection;
-using Avalonia;
-using Avalonia.Controls.ApplicationLifetimes;
+using LanMountainDesktop.PluginSdk;
 
 namespace LanMountainDesktop.Services;
 
@@ -12,17 +11,9 @@ public static class AppRestartService
 {
     public static bool TryRestartApplication()
     {
-        if (!TryRestartCurrentProcess())
-        {
-            return false;
-        }
-
-        if (Application.Current?.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
-        {
-            desktop.Shutdown();
-        }
-
-        return true;
+        return App.CurrentHostApplicationLifecycle?.TryRestart(new HostApplicationLifecycleRequest(
+            Source: nameof(AppRestartService),
+            Reason: "Legacy restart entry point invoked.")) == true;
     }
 
     public static bool TryRestartCurrentProcess()

LanMountainDesktop/Services/HostApplicationLifecycleService.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Diagnostics;
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Threading;
+using LanMountainDesktop.PluginSdk;
+
+namespace LanMountainDesktop.Services;
+
+public sealed class HostApplicationLifecycleService : IHostApplicationLifecycle
+{
+    public bool TryExit(HostApplicationLifecycleRequest? request = null)
+    {
+        try
+        {
+            AppLogger.Info(
+                "HostLifecycle",
+                $"Exit requested. Source='{request?.Source ?? "Unknown"}'; Reason='{request?.Reason ?? string.Empty}'.");
+
+            if (Application.Current?.ApplicationLifetime is not IClassicDesktopStyleApplicationLifetime desktop)
+            {
+                AppLogger.Warn("HostLifecycle", "Exit request ignored because desktop lifetime is unavailable.");
+                return false;
+            }
+
+            if (Dispatcher.UIThread.CheckAccess())
+            {
+                desktop.Shutdown();
+            }
+            else
+            {
+                Dispatcher.UIThread.Post(() => desktop.Shutdown(), DispatcherPriority.Send);
+            }
+
+            return true;
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("HostLifecycle", "Failed to exit the application.", ex);
+            return false;
+        }
+    }
+
+    public bool TryRestart(HostApplicationLifecycleRequest? request = null)
+    {
+        try
+        {
+            var startInfo = AppRestartService.CreateRestartStartInfo();
+            if (startInfo is null)
+            {
+                AppLogger.Warn(
+                    "HostLifecycle",
+                    $"Restart request rejected because restart start info could not be resolved. Source='{request?.Source ?? "Unknown"}'.");
+                return false;
+            }
+
+            Process.Start(startInfo);
+            var exitRequest = request is null
+                ? new HostApplicationLifecycleRequest(Reason: "Restart accepted.")
+                : request with
+                {
+                    Reason = string.IsNullOrWhiteSpace(request.Reason)
+                        ? "Restart accepted."
+                        : request.Reason
+                };
+
+            return TryExit(exitRequest);
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("HostLifecycle", "Failed to restart the application.", ex);
+            return false;
+        }
+    }
+}

LanMountainDesktop/Services/IAudioRecorderService.cs

@@ -80,6 +80,19 @@ public static class AudioRecorderServiceFactory
     {
         return CreateRecorder();
     }
+
+    public static void DisposeSharedServices()
+    {
+        if (SharedRecorderService.IsValueCreated)
+        {
+            SharedRecorderService.Value.Dispose();
+        }
+
+        if (SharedStudyMonitoringService.IsValueCreated)
+        {
+            SharedStudyMonitoringService.Value.Dispose();
+        }
+    }
 }
 
 internal sealed class NoOpAudioRecorderService(string reason) : IAudioRecorderService

LanMountainDesktop/Services/SingleInstanceService.cs

@@ -0,0 +1,151 @@
+using System;
+using System.IO.Pipes;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace LanMountainDesktop.Services;
+
+public sealed class SingleInstanceService : IDisposable
+{
+    private readonly Mutex _mutex;
+    private readonly string _pipeName;
+    private readonly CancellationTokenSource _listenCts = new();
+    private bool _ownsMutex;
+    private bool _disposed;
+    private Task? _listenTask;
+
+    private SingleInstanceService(string mutexName, string pipeName)
+    {
+        _mutex = new Mutex(initiallyOwned: false, mutexName);
+        _pipeName = pipeName;
+        try
+        {
+            _ownsMutex = _mutex.WaitOne(TimeSpan.Zero, exitContext: false);
+        }
+        catch (AbandonedMutexException)
+        {
+            _ownsMutex = true;
+        }
+    }
+
+    public bool IsPrimaryInstance => _ownsMutex;
+
+    public static SingleInstanceService CreateDefault()
+    {
+        const string appId = "LanMountainDesktop";
+        var userName = Environment.UserName;
+        var scopeSeed = $"{appId}:{userName}";
+        var scopeHash = Convert.ToHexString(SHA256.HashData(Encoding.UTF8.GetBytes(scopeSeed)));
+        var suffix = scopeHash[..16];
+        var mutexName = OperatingSystem.IsWindows()
+            ? $"Local\\{appId}.SingleInstance.{suffix}"
+            : $"{appId}.SingleInstance.{suffix}";
+        return new SingleInstanceService(
+            mutexName,
+            $"{appId}.Activate.{suffix}");
+    }
+
+    public void StartActivationListener(Action onActivationRequested)
+    {
+        ArgumentNullException.ThrowIfNull(onActivationRequested);
+
+        if (!_ownsMutex || _disposed || _listenTask is not null)
+        {
+            return;
+        }
+
+        _listenTask = Task.Run(() => ListenForActivationAsync(onActivationRequested, _listenCts.Token));
+    }
+
+    public bool TryNotifyPrimaryInstance(TimeSpan timeout)
+    {
+        if (_ownsMutex || _disposed)
+        {
+            return false;
+        }
+
+        try
+        {
+            using var client = new NamedPipeClientStream(
+                serverName: ".",
+                pipeName: _pipeName,
+                direction: PipeDirection.Out,
+                options: PipeOptions.Asynchronous);
+
+            client.Connect((int)Math.Max(1, timeout.TotalMilliseconds));
+            client.WriteByte(1);
+            client.Flush();
+            return true;
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("SingleInstance", "Failed to notify the primary instance.", ex);
+            return false;
+        }
+    }
+
+    public void Dispose()
+    {
+        if (_disposed)
+        {
+            return;
+        }
+
+        _disposed = true;
+        _listenCts.Cancel();
+        try
+        {
+            _listenTask?.Wait(TimeSpan.FromSeconds(1));
+        }
+        catch
+        {
+            // Ignore listener shutdown races during process exit.
+        }
+
+        _listenCts.Dispose();
+        if (_ownsMutex)
+        {
+            try
+            {
+                _mutex.ReleaseMutex();
+            }
+            catch (ApplicationException)
+            {
+                // Ownership may already be lost during shutdown.
+            }
+        }
+
+        _mutex.Dispose();
+    }
+
+    private async Task ListenForActivationAsync(Action onActivationRequested, CancellationToken cancellationToken)
+    {
+        while (!cancellationToken.IsCancellationRequested)
+        {
+            try
+            {
+                using var server = new NamedPipeServerStream(
+                    _pipeName,
+                    PipeDirection.In,
+                    1,
+                    PipeTransmissionMode.Byte,
+                    PipeOptions.Asynchronous);
+
+                await server.WaitForConnectionAsync(cancellationToken).ConfigureAwait(false);
+                await server.ReadAsync(new byte[1], cancellationToken).ConfigureAwait(false);
+                onActivationRequested();
+            }
+            catch (OperationCanceledException)
+            {
+                break;
+            }
+            catch (Exception ex)
+            {
+                AppLogger.Warn("SingleInstance", "Activation listener failed.", ex);
+                await Task.Delay(TimeSpan.FromMilliseconds(250), cancellationToken).ConfigureAwait(false);
+            }
+        }
+    }
+}

LanMountainDesktop/Services/StudyAnalyticsService.cs

@@ -16,6 +16,14 @@ public static class StudyAnalyticsServiceFactory
     {
         return SharedService.Value;
     }
+
+    public static void DisposeSharedService()
+    {
+        if (SharedService.IsValueCreated)
+        {
+            SharedService.Value.Dispose();
+        }
+    }
 }
 
 public sealed class StudyAnalyticsService : IStudyAnalyticsService
@@ -446,6 +454,7 @@ public sealed class StudyAnalyticsService : IStudyAnalyticsService
             _disposed = true;
             StopTimerLocked();
             _samplingTimer.Dispose();
+            _audioRecorderService.Dispose();
         }
     }
 
@@ -759,4 +768,3 @@ public sealed class StudyAnalyticsService : IStudyAnalyticsService
         _lastSessionReport = null;
     }
 }
-

LanMountainDesktop/Services/WindowsNativeDialogService.cs

@@ -6,9 +6,20 @@ namespace LanMountainDesktop.Services;
 internal static class WindowsNativeDialogService
 {
     private const uint Ok = 0x00000000;
+    private const uint IconInformation = 0x00000040;
     private const uint IconWarning = 0x00000030;
 
+    public static void ShowInformation(string caption, string message)
+    {
+        Show(caption, message, Ok | IconInformation, "NativeDialog");
+    }
+
     public static void ShowWarning(string caption, string message)
+    {
+        Show(caption, message, Ok | IconWarning, "StartupDiagnostics");
+    }
+
+    private static void Show(string caption, string message, uint type, string logCategory)
     {
         if (!OperatingSystem.IsWindows())
         {
@@ -17,11 +28,11 @@ internal static class WindowsNativeDialogService
 
         try
         {
-            _ = MessageBoxW(IntPtr.Zero, message, caption, Ok | IconWarning);
+            _ = MessageBoxW(IntPtr.Zero, message, caption, type);
         }
         catch (Exception ex)
         {
-            AppLogger.Warn("StartupDiagnostics", "Failed to show legacy executable warning dialog.", ex);
+            AppLogger.Warn(logCategory, "Failed to show native dialog.", ex);
         }
     }