MarshalByRefObject.InitializeLifetimeService Methode

Definition

Namespace:
System
Assemblys:
netstandard.dll, System.Runtime.dll
Assembly:
System.Runtime.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll
Quelle:
MarshalByRefObject.cs
Quelle:
MarshalByRefObject.cs
Quelle:
MarshalByRefObject.cs
Quelle:
MarshalByRefObject.cs
Quelle:
MarshalByRefObject.cs

Achtung

This Remoting API is not supported and throws PlatformNotSupportedException.

Ruft ein Lebensdauerdienstobjekt ab, um die Lebensdauerrichtlinie für diese Instanz zu steuern.

public:
 virtual System::Object ^ InitializeLifetimeService();
[System.Obsolete("This Remoting API is not supported and throws PlatformNotSupportedException.", DiagnosticId="SYSLIB0010", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public virtual object InitializeLifetimeService();
public virtual object InitializeLifetimeService();
[System.Security.SecurityCritical]
public virtual object InitializeLifetimeService();
[<System.Obsolete("This Remoting API is not supported and throws PlatformNotSupportedException.", DiagnosticId="SYSLIB0010", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
abstract member InitializeLifetimeService : unit -> obj
override this.InitializeLifetimeService : unit -> obj
abstract member InitializeLifetimeService : unit -> obj
override this.InitializeLifetimeService : unit -> obj
[<System.Security.SecurityCritical>]
abstract member InitializeLifetimeService : unit -> obj
override this.InitializeLifetimeService : unit -> obj
Public Overridable Function InitializeLifetimeService () As Object

Gibt zurück

Object

Ein Objekt vom Typ ILease , das zum Steuern der Lebensdauerrichtlinie für diese Instanz verwendet wird. Dies ist das aktuelle Lebensdauerdienstobjekt für diese Instanz, falls vorhanden; andernfalls initialisiert ein neues Lebensdauerdienstobjekt, das auf den Wert der LeaseManagerPollTime Eigenschaft initialisiert wurde.

Attribute
ObsoleteAttribute SecurityCriticalAttribute

Ausnahmen

SecurityException

Der direkte Aufrufer verfügt nicht über die Infrastrukturberechtigung.

PlatformNotSupportedException

Nur .NET Core und .NET 5+ : In allen Fällen.

Beispiele

Im folgenden Codebeispiel wird das Erstellen einer Lease veranschaulicht.

public ref class MyClass: public MarshalByRefObject
{
public:
   
   [System::Security::Permissions::SecurityPermissionAttribute
   (System::Security::Permissions::SecurityAction::Demand,
   Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
   virtual Object^ InitializeLifetimeService() override
   {
      ILease^ lease = dynamic_cast<ILease^>(MarshalByRefObject::InitializeLifetimeService());
      if ( lease->CurrentState == LeaseState::Initial )
      {
         lease->InitialLeaseTime = TimeSpan::FromMinutes( 1 );
         lease->SponsorshipTimeout = TimeSpan::FromMinutes( 2 );
         lease->RenewOnCallTime = TimeSpan::FromSeconds( 2 );
      }

      return lease;
   }

};

public class MyClass : MarshalByRefObject
{
  public override Object InitializeLifetimeService()
  {
    ILease lease = (ILease)base.InitializeLifetimeService();
    if (lease.CurrentState == LeaseState.Initial)
    {
         lease.InitialLeaseTime = TimeSpan.FromMinutes(1);
         lease.SponsorshipTimeout = TimeSpan.FromMinutes(2);
          lease.RenewOnCallTime = TimeSpan.FromSeconds(2);
    }
      return lease;
  }
}

type MyClass() =
    inherit MarshalByRefObject()
   
    override _.InitializeLifetimeService() =
        let lease = base.InitializeLifetimeService() :?> ILease
        if lease.CurrentState = LeaseState.Initial then
            lease.InitialLeaseTime <- TimeSpan.FromMinutes 1
            lease.SponsorshipTimeout <- TimeSpan.FromMinutes 2
            lease.RenewOnCallTime <- TimeSpan.FromSeconds 2
        lease

Public Class LSClass
    Inherits MarshalByRefObject
    
    <SecurityPermissionAttribute(SecurityAction.Demand, _
                                 Flags:=SecurityPermissionFlag.Infrastructure)> _
    Public Overrides Function InitializeLifetimeService() As Object
        Dim lease As ILease = CType(MyBase.InitializeLifetimeService(), ILease)
        If lease.CurrentState = LeaseState.Initial Then
            lease.InitialLeaseTime = TimeSpan.FromMinutes(1)
            lease.SponsorshipTimeout = TimeSpan.FromMinutes(2)
            lease.RenewOnCallTime = TimeSpan.FromSeconds(2)
        End If
        Return lease
    End Function


    Public Shared Sub Main()  
    ' The main thread processing is here.
    End Sub
End Class

Hinweise

Diese Methode ist ab .NET 5 als veraltet markiert.

Weitere Informationen zu Lebensdauerdiensten finden Sie in der LifetimeServices Klasse.

Gilt für: