refactor: 项目稳定性优化

SingleInstanceManager.cs

@@ -11,12 +11,16 @@ namespace TimerApp
         private const string MutexName = "Local\\TimerApp.SingleInstance";
         private const string PipeName = "TimerApp.SingleInstancePipe";
 
-        private readonly Mutex _mutex;
+        private readonly Mutex? _mutex;
+        private readonly bool _ownsMutex;
+        private readonly bool _enableIpc;
         private readonly CancellationTokenSource _cts = new();
 
-        private SingleInstanceManager(Mutex mutex)
+        private SingleInstanceManager(Mutex? mutex, bool ownsMutex, bool enableIpc)
         {
             _mutex = mutex;
+            _ownsMutex = ownsMutex;
+            _enableIpc = enableIpc;
         }
 
         public static bool TryAcquire(out SingleInstanceManager? manager)
@@ -32,11 +36,12 @@ namespace TimerApp
                     return false;
                 }
 
-                manager = new SingleInstanceManager(mutex);
+                manager = new SingleInstanceManager(mutex, ownsMutex: true, enableIpc: true);
                 return true;
             }
             catch
             {
+                manager = new SingleInstanceManager(mutex: null, ownsMutex: false, enableIpc: false);
                 return true;
             }
         }
@@ -57,6 +62,7 @@ namespace TimerApp
 
         public void StartServer(Action onShowRequested)
         {
+            if (!_enableIpc) return;
             Task.Run(() => ServerLoop(onShowRequested, _cts.Token));
         }
 
@@ -104,15 +110,17 @@ namespace TimerApp
 
             try
             {
-                _mutex.ReleaseMutex();
+                if (_ownsMutex)
+                {
+                    _mutex?.ReleaseMutex();
+                }
             }
             catch
             {
             }
 
-            _mutex.Dispose();
+            _mutex?.Dispose();
             _cts.Dispose();
         }
     }
 }
-