HostProtectionAttribute.ExternalThreading Properti

Definisi

Ruang nama:

System.Security.Permissions

Rakitan:

System.Security.Permissions.dll

Paket:

System.Security.Permissions v9.0.0-rc.2.24473.5

Sumber:

HostProtectionAttribute.cs

Mendapatkan atau menetapkan nilai yang menunjukkan apakah utas eksternal terekspos.

public:
 property bool ExternalThreading { bool get(); void set(bool value); };

public bool ExternalThreading { get; set; }

member this.ExternalThreading : bool with get, set

Public Property ExternalThreading As Boolean

Nilai Properti

Boolean

true jika utas eksternal terekspos; jika tidak, false. Default adalah false.

Contoh

Contoh kode berikut mengilustrasikan penggunaan HostProtectionAttribute atribut dengan ExternalThreading properti . Contoh ini adalah bagian dari contoh yang lebih besar yang disediakan untuk HostProtectionAttribute kelas .

// Use the enumeration flags to indicate that this method exposes synchronization 
//  and external threading.

[HostProtection(Synchronization=true,ExternalThreading=true)]
static void StartThread()
{
   Thread^ t = gcnew Thread( gcnew ThreadStart( WatchFileEvents ) );
   
   // Start the new thread.  On a uniprocessor, the thread is not given 
   // any processor time until the main thread yields the processor.  
   t->Start();
   
   // Give the new thread a chance to execute.
   Thread::Sleep( 1000 );
}

// Use the enumeration flags to indicate that this method exposes 
// synchronization and external threading.
[HostProtectionAttribute(Synchronization=true, ExternalThreading=true)]
private static void StartThread()
{
    Thread t = new Thread(new ThreadStart(WatchFileEvents));
    
    // Start the new thread. On a uniprocessor, the thread is not given
    // any processor time until the main thread yields the processor.
    t.Start();
    
    // Give the new thread a chance to execute.
    Thread.Sleep(1000);
}

' Use the enumeration flags to indicate that this method exposes  
' synchronization and external threading.
<HostProtectionAttribute(Synchronization := True, _
    ExternalThreading := True)> _
Private Shared Sub StartThread()
    Dim t As New Thread(New ThreadStart(AddressOf WatchFileEvents))

    ' Start the new thread. On a uniprocessor, the thread is not given 
    ' any processor time until the main thread yields the processor.  
    t.Start()

    ' Give the new thread a chance to execute.
    Thread.Sleep(1000)
End Sub

Keterangan

Kode yang mengekspos utas eksternal membuat atau memanipulasi utas selain utasnya sendiri, yang mungkin berbahaya bagi host.

Lihat juga

• ExternalThreading