CellularNetworkContext 优化一下 Dispose

CoreAgent.Infrastructure/Contexts/CellularNetworkContext.cs

@@ -264,6 +264,16 @@ public class CellularNetworkContext : ICellularNetworkContext, IDisposable
     /// 释放资源
     /// </summary>
     public void Dispose()
+    {
+        Dispose(true);
+        GC.SuppressFinalize(this);
+    }
+
+    /// <summary>
+    /// 释放资源
+    /// </summary>
+    /// <param name="disposing">是否正在释放托管资源</param>
+    protected virtual void Dispose(bool disposing)
     {
         if (_isDisposed)
         {
@@ -277,10 +287,39 @@ public class CellularNetworkContext : ICellularNetworkContext, IDisposable
                 return;
             }
 
-            _token?.Cancel();
-            _token?.Dispose();
+            if (disposing)
+            {
+                try
+                {
+                    if (_token != null)
+                    {
+                        if (!_token.IsCancellationRequested)
+                        {
+                            _token.Cancel();
+                        }
+                        _token.Dispose();
+                    }
+                }
+                catch (ObjectDisposedException)
+                {
+                    // 忽略已释放的异常
+                }
+                catch (Exception)
+                {
+                    // 记录其他异常
+                }
+            }
+
             _isInitialized = false;
             _isDisposed = true;
         }
     }
+
+    /// <summary>
+    /// 析构函数
+    /// </summary>
+    ~CellularNetworkContext()
+    {
+        Dispose(false);
+    }
 }