com.oracle.svm.core.thread

Class VMOperationControl.AllocationFreeStack<T extends VMOperationControl.AllocationFreeStack.Element<T>>

java.lang.Object

com.oracle.svm.core.thread.VMOperationControl.AllocationFreeStack<T>

Direct Known Subclasses:

VMOperationControl.SynchronizedAllocationFreeStack

Enclosing class:

VMOperationControl

protected static class VMOperationControl.AllocationFreeStack<T extends VMOperationControl.AllocationFreeStack.Element<T>>
extends Object

A stack that does not allocate cons-cells because each element has a next pointer. This stack is not multi-thread safe. Someone should hold a mutex to keep this code single-threaded. See VMOperationControl.SynchronizedAllocationFreeStack.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	VMOperationControl.AllocationFreeStack.Element<T extends VMOperationControl.AllocationFreeStack.Element<T>> An element for an allocation-free stack.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AllocationFreeStack() Constructor.

Method Summary

Modifier and Type	Method and Description
static <U extends VMOperationControl.AllocationFreeStack.Element<U>> VMOperationControl.AllocationFreeStack<U>	factory()
boolean	isEmpty() Returns true if the stack is empty, else false.
T	pop() Pop an element from the stack, or null if the stack is empty.
void	push(T element)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AllocationFreeStack

protected AllocationFreeStack()

Constructor.

Method Detail

factory

public static <U extends VMOperationControl.AllocationFreeStack.Element<U>> VMOperationControl.AllocationFreeStack<U> factory()

isEmpty

public boolean isEmpty()

Returns true if the stack is empty, else false. This is a snapshot and may no longer be correct by the time the caller can use the result.

push

public void push(T element)

pop

public T pop()

Pop an element from the stack, or null if the stack is empty.