兩個線程，一個共享屬性。讀/寫困境

Question

我有簡單的問題，但仍然無法找到合適的解決方案（C＃）

1. 說我有主線程中使用某些資源char[] arena_snapshot不時主類運行（解析它，基於此更新競技場）。
2. 此外，我開始工作線程，不斷更新共享資源char[] arena_snapshot。

是否有機會在解析工作線程的中間修改了緩衝區，使主線程不正確地分析緩衝。 如何在解析時鎖定arena_snapshot？

class Arena 
{ 
    List<PLayer> players; 
    ... 
    public int main() 
    { 
     arenaClient = new ArenaClient(); 
     Thread arenaListener = new Thread(new ThreadStart(arenaClient.StartListener)); 
     arenaListener.IsBackground = true; 
     arenaListener.Start(); //Start UDP worker 
    } 

    public void Update() 
    { 
     //Let's parse the buffer and update our Arena .. 
     ... 
     foreach (Player p in players) 
     { 

      play.Position.X = arenaClient.arena_snapshot[2]; 
      //etc... 
     } 

    } 
} 

class ArenaClient 
{ 
    ... 
    public char[] arena_snapshot; //hold most recent information about our Arena (snapshot) 
    ... 
    public void StartListener() 
    { 
     while(!done) 
     { 
      ... 
      //Warning! Updating the snapshot, warn the main thread! Don't do this during parsing of the snapshot! 
      arena_snapshot = UDPClient.Receive(ref groupEP);; 
      ... 
     } 
    } 
} 

Answer 1

你嘗試lock？

private Object thisLock = new Object(); 
    private char[] _arena_snapshot; 
    public char[] arena_snapshot 
    { 
     get 
     { 
      lock (thisLock) 
      { 
       return _arena_snapshot; 
      } 
     } 

     set 
     { 
      lock (thisLock) 
      { 
       _arena_snapshot = value; 
      } 
     } 
    }