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How to: Implement the lock C# Keyword (C++/CLI)

 

The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at How to: Implement the lock C# Keyword (C++/CLI).

This topic shows how to implement the C# lock keyword in Visual C++. For more information, see lock Statement.

You can also use the lock class in the C++ Support Library. See Synchronization (lock Class) for more information.

Example

// CS_lock_in_CPP.cpp  
// compile with: /clr  
using namespace System::Threading;  
ref class Lock {  
   Object^ m_pObject;  
public:  
   Lock( Object ^ pObject ) : m_pObject( pObject ) {  
      Monitor::Enter( m_pObject );  
   }  
   ~Lock() {  
      Monitor::Exit( m_pObject );  
   }  
};  
  
ref struct LockHelper {  
   void DoSomething();  
};  
  
void LockHelper::DoSomething() {  
   // Note: Reference type with stack allocation semantics to provide   
   // deterministic finalization  
  
   Lock lock( this );     
   // LockHelper instance is locked  
}  
  
int main()  
{  
   LockHelper lockHelper;  
   lockHelper.DoSomething();  
   return 0;  
}  

See Also

Interoperability with Other .NET Languages (C++/CLI)