是否有一些Visual Studio扩展，检查潜在线程不安全的代码？

Question

是否有一些Visual Studio扩展，检查潜在线程不安全的代码并标记这段代码？也许ReSharper有这种能力？

Answer 1

我知道有两个R＃检查。

对于lock -statements

public class SometimesNotSynchronizedWarning 
{ 
    private readonly List<string> _list = new List<string>(); 
    private readonly object _lockObj = new object(); 

    public bool Contains(string item) 
    { 
     lock (_lockObj) 
     { 
      return _list.Contains(item); 
     } 
    } 

    public void Add(string item) 
    { 
     // R# warning: "The field is sometimes used inside synchronized block 
     // and sometimes used without synchronization": 
     _list.Add(item); 
    } 
} 

对于双检查锁定实现

public class DoubleCheckedLockingWarning 
{ 
    private List<string> _instance; 
    private readonly object _lockObj = new object(); 

    public List<string> GetInstance() 
    { 
     if (_instance != null) return _instance; 

     lock (_lockObj) 
      if (_instance == null) 
       // R# warning: "Possible incorrect implementation of Double-Check Locking. 
       // Checked field must be volatile or assigned from local variable 
       // after 'Thread.MemoryBarrier()' call": 
       _instance = new List<string>(); 

     return _instance; 
    } 
}