從主要方法（無限循環）垃圾回收

Question

我正在實施一個無限的任務，每隔一段時間通過.net控制檯應用程序運行。不過，我擔心下面會導致內存泄漏。由於Main是靜態的（這是我關於垃圾收集的知識會變得模糊的地方）並不意味着我在try和catch中創建的對象不會被垃圾收集器拾取，直到Main完成（永遠不會）？

有人能解釋一下垃圾收集器在這種情況下的行爲嗎？

public static void Main(string[] args) 
    { 
     Log.Logger = new LoggerConfiguration() 
     .MinimumLevel.Debug() 
     .WriteTo.RollingFile("Logs/log-{Date}.txt") 
     .CreateLogger(); 
     while (true) 
     { 
      try 
      { 
       Thread.Sleep(1000); 
       new UpdatePlayer().Run(); 
      } 
      catch (Exception ex) 
      { 
       Log.Error(ex.ToString()); 
      } 
     } 
    } 

Answer 1

你有沒有內存泄漏：Main不有任何參考到UpdatePlayer()例如：

... 
try 
{ 
    Thread.Sleep(1000); 

    // Instance created, executed 
    new UpdatePlayer().Run(); 
} 

// And can be safely collected here when the instance is out of scope (`try {...}`) 
// the anonymous instance can't be accessed and that's enough 

樣本與內存泄漏：

// please notice, that anchor is outside the `while(true)` scope 
List<Object> anchor = new List<Object>(); 
... 

while (true) 
{ 
     try 
     { 
     Thread.Sleep(1000); 

     // Instance created 
     var item = new UpdatePlayer(); 
     // anchored 
     anchor.Add(item); 
     // and executed 
     item.Run();   
     } 

     // item can't be collected here: anchor has a reference to it 
     // And the item potentially can be accessed by, say, anchor[0] 

編輯：如果您將集合移動到while(true)範圍，代碼會沒有內存泄漏：

 try 
     { 
     List<object> pseudoAnchor = new List<object>(); 

     // Instance created 
     var item = new UpdatePlayer(); 
     // tried to be anchored (illusion) 
     pseudoAnchor.Add(item); 
     // and executed 
     item.Run();   
     } 
     ... 

     // the only reference to item is pseudoAnchor, but 
     // pseudoAnchor has not been referenced, and so GC 
     // can safely collect entire pseudoAnchor with all its items 
     // (just one `item` in fact)