LibGraalIsolate

java.lang.Object

com.oracle.truffle.runtime.hotspot.libgraal.LibGraalIsolate

public final class LibGraalIsolate extends Object

Represents a single libgraal isolate. All LibGraalObjects have a LibGraalIsolate context.

Method Summary

Modifier and Type

Method

Description

static LibGraalIsolate

current()

Gets the isolate associated with the current thread.

long

getId()

<T> T

getSingleton(Class<T> key, Supplier<T> supplier)

Gets the value corresponding to key from a key-value store of singleton objects.

boolean

isValid()

String

toString()

static void

unregister(long isolateId)

Notifies that the JavaVM associated with isolate has been destroyed.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details
- getId
  
  public long getId()
- current
  
  public static LibGraalIsolate current()
  
  Gets the isolate associated with the current thread. The current thread must be in an opened scope.
  
  Throws:
  
  IllegalStateException - if the current thread is not attached to libgraal
- getSingleton
  
  public <T> T getSingleton(Class<T> key, Supplier<T> supplier)
  
  Gets the value corresponding to key from a key-value store of singleton objects. If no value corresponding to key currently exists, then it is computed with supplier and inserted in the store. This is used to obtain objects whose lifetime is bound to the isolate represented by this object.
- unregister
  
  public static void unregister(long isolateId)
  
  Notifies that the JavaVM associated with isolate has been destroyed. All subsequent accesses to objects in the isolate will throw an DestroyedIsolateException. Called by LibGraalFeature#shutdownLibGraal using JNI.
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object
- isValid
  
  public boolean isValid()