MarshalByRefObject.InitializeLifetimeService Method
Definition
Obtains a lifetime service object to control the lifetime policy for this instance.
public:
virtual System::Object ^ InitializeLifetimeService();
[System.Security.SecurityCritical]
public virtual object InitializeLifetimeService ();
abstract member InitializeLifetimeService : unit -> obj
override this.InitializeLifetimeService : unit -> obj
Public Overridable Function InitializeLifetimeService () As Object
Returns
An object of type ILease used to control the lifetime policy for this instance. This is the current lifetime service object for this instance if one exists; otherwise, a new lifetime service object initialized to the value of the LeaseManagerPollTime property.
- Attributes
Exceptions
The immediate caller does not have infrastructure permission.
Examples
The following code example demonstrates creating a lease.
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
{
[SecurityPermissionAttribute(SecurityAction.Demand,
Flags=SecurityPermissionFlag.Infrastructure)]
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;
}
}
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
Remarks
For more information about lifetime services, see the LifetimeServices class.
Security
SecurityCriticalAttribute
requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.