private static void ResurrectionDemo()
{
Display(0, "\n\nDemo start: Object Resurrection.", +1);
// Create a ResurrectionObj and drop it on the floor.
ResurrectionInit();
// Force the GC to determine that the object is unreachable.
Collect();
WaitForFinalizers(); // You should see the Finalize method called.
// However, the ResurrectionObj's Finalize method
// resurrects the object keeping it alive. It does this by placing a
// reference to the dying-object in Application.ResObjHolder
// You can see that ResurrectionObj still exists because
// the following line doesn't raise an exception.
ResObjHolder.Display("Still alive after Finalize called");
// Prevent the ResurrectionObj object from resurrecting itself again,
ResObjHolder.SetResurrection(false);
// Now, let's destroy this last reference to the ResurrectionObj
ResObjHolder = null;
// Force the GC to determine that the object is unreachable.
Collect();
WaitForFinalizers(); // You should see the Finalize method called.
Display(-1, "Demo stop: Object Resurrection.", 0);
}
static public ResurrectObj ResObjHolder; // Defaults to null
// These methods demonstrate how the GC supports resurrection.
// NOTE: Resurrection is discouraged.
private static void ResurrectionInit()
{
// Create a ResurrectionObj
ResurrectObj obj = new ResurrectObj("Resurrection");
// Destroy all strong references to the new ResurrectionObj
obj = null;
}
public static void ResurrectionDemo() {
ResurrectObj obj = new ResurrectObj();
obj = null;
GC.Collect();
GC.WaitForPendingFinalizers();
// calling the finalizer again on the resurrected object
ResObjHolder = null;
GC.Collect();
GC.WaitForPendingFinalizers();
}
public static void ResurrectionDemo()
{
ResurrectObj obj = new ResurrectObj();
obj = null;
GC.Collect();
GC.WaitForPendingFinalizers();
// calling the finalizer again on the resurrected object
ResObjHolder = null;
GC.Collect();
GC.WaitForPendingFinalizers();
}
static public ResurrectObj ResObjHolder; // Defaults to null
// This method demonstrates how the GC supports resurrection.
// NOTE: Resurrection is discouraged.
private static void ResurrectionDemo() {
Display(0, "\n\nDemo start: Object Resurrection.", +1);
// Create a ResurrectionObj
ResurrectObj obj = new ResurrectObj("Resurrection");
// Destroy all strong references to the new ResurrectionObj
obj = null;
// Force the GC to determine that the object is unreachable.
Collect();
WaitForFinalizers(); // You should see the Finalize method called.
// However, the ResurrectionObj's Finalize method
// resurrects the object keeping it alive. It does this by placing a
// reference to the dying-object in Application.ResObjHolder
// You can see that ResurrectionObj still exists because
// the following line doesn't raise an exception.
ResObjHolder.Display("Still alive after Finalize called");
// Prevent the ResurrectionObj object from resurrecting itself again,
ResObjHolder.SetResurrection(false);
// Now, let's destroy this last reference to the ResurrectionObj
ResObjHolder = null;
// Force the GC to determine that the object is unreachable.
Collect();
WaitForFinalizers(); // You should see the Finalize method called.
Display(-1, "Demo stop: Object Resurrection.", 0);
}