com.oracle.svm.core.heap

Class ReferenceInternals

java.lang.Object

com.oracle.svm.core.heap.ReferenceInternals

public final class ReferenceInternals
extends Object

Methods implementing the internals of Reference or providing access to them. These are not injected into Target_java_lang_ref_Reference so that subclasses of Reference cannot interfere with them.

Field Summary

Fields

Modifier and Type	Field and Description
static String	REFERENT_FIELD_NAME

Method Summary

Modifier and Type	Method and Description
static <T> void	clear(Reference<T> instance)
static <T> Reference<?>	getNextDiscovered(Reference<T> instance) Barrier-less read of Target_java_lang_ref_Reference.discovered.
static long	getNextDiscoveredFieldOffset()
static jdk.vm.ci.meta.ResolvedJavaType	getReferenceType(jdk.vm.ci.meta.MetaAccessProvider metaAccess)
static <T> T	getReferent(Reference<T> instance)
static jdk.vm.ci.meta.ResolvedJavaField	getReferentField(jdk.vm.ci.meta.MetaAccessProvider metaAccess)
static <T> org.graalvm.word.Pointer	getReferentFieldAddress(Reference<T> instance)
static long	getReferentFieldOffset()
static <T> org.graalvm.word.Pointer	getReferentPointer(Reference<T> instance) Barrier-less read of Target_java_lang_ref_Reference.referent as pointer.
static long	getSoftReferenceClock()
static long	getSoftReferenceTimestamp(SoftReference<?> instance)
static boolean	hasQueue(Reference<?> instance)
static void	processPendingReferences()
static <T> void	setNextDiscovered(Reference<T> instance, Reference<?> newNext) Barrier-less write of Target_java_lang_ref_Reference.discovered.
static <T> void	setReferentPointer(Reference<T> instance, org.graalvm.word.Pointer value) Barrier-less write of Target_java_lang_ref_Reference.referent as pointer.
static void	updateSoftReferenceClock()
static void	waitForPendingReferences()
static boolean	waitForReferenceProcessing()

Methods inherited from class java.lang.Object

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

Field Detail

REFERENT_FIELD_NAME

public static final String REFERENT_FIELD_NAME

See Also:

Constant Field Values

Method Detail

clear

public static <T> void clear(Reference<T> instance)

getReferentPointer

public static <T> org.graalvm.word.Pointer getReferentPointer(Reference<T> instance)

Barrier-less read of Target_java_lang_ref_Reference.referent as pointer.

getReferent

public static <T> T getReferent(Reference<T> instance)

setReferentPointer

public static <T> void setReferentPointer(Reference<T> instance,
                                          org.graalvm.word.Pointer value)

Barrier-less write of Target_java_lang_ref_Reference.referent as pointer.

getReferentFieldAddress

public static <T> org.graalvm.word.Pointer getReferentFieldAddress(Reference<T> instance)

getReferentFieldOffset

public static long getReferentFieldOffset()

getNextDiscovered

public static <T> Reference<?> getNextDiscovered(Reference<T> instance)

Barrier-less read of Target_java_lang_ref_Reference.discovered.

getNextDiscoveredFieldOffset

public static long getNextDiscoveredFieldOffset()

setNextDiscovered

public static <T> void setNextDiscovered(Reference<T> instance,
                                         Reference<?> newNext)

Barrier-less write of Target_java_lang_ref_Reference.discovered.

hasQueue

public static boolean hasQueue(Reference<?> instance)

waitForPendingReferences

public static void waitForPendingReferences()
                                     throws InterruptedException

Throws:

InterruptedException

processPendingReferences

public static void processPendingReferences()

waitForReferenceProcessing

public static boolean waitForReferenceProcessing()
                                          throws InterruptedException

Throws:

InterruptedException

getSoftReferenceClock

public static long getSoftReferenceClock()

updateSoftReferenceClock

public static void updateSoftReferenceClock()

getSoftReferenceTimestamp

public static long getSoftReferenceTimestamp(SoftReference<?> instance)

getReferenceType

public static jdk.vm.ci.meta.ResolvedJavaType getReferenceType(jdk.vm.ci.meta.MetaAccessProvider metaAccess)

getReferentField

public static jdk.vm.ci.meta.ResolvedJavaField getReferentField(jdk.vm.ci.meta.MetaAccessProvider metaAccess)