OpenJDK 27 · sun.jvm.hotspot.code.StubQueue · APIdia, the JavaDoc alternative

A port of the VM's StubQueue. Note that the VM implicitly knows the type of the objects contained in each StubQueue because it passes in an instance of a StubInterface to the StubQueue's constructor; the goal in the VM was to save space in the generated code. In the SA APIs the pattern has been to use the VirtualConstructor mechanism to instantiate wrapper objects of the appropriate type for objects down in the VM; see, for example, the CodeCache, which identifies NMethods, RuntimeStubs, etc.

In this port we eliminate the StubInterface in favor of passing in the class corresponding to the type of Stub which this StubQueue contains.

Field Summary

Modifier and Type	Field and Description
private static CIntegerField	bufferLimitField
private static CIntegerField	numberOfStubsField
private static CIntegerField	queueBeginField
private static CIntegerField	queueEndField
private static AddressField	stubBufferField
private Class<?>	stubType

Inherited from sun.jvm.hotspot.runtime.VMObject:: addr

Constructor Summary

Access	Constructor and Description
public	StubQueue(Address addr, Class<T> stubType)

Method Summary

Modifier and Type	Method and Description
private void	checkIndex(long i)
public boolean	contains(Address pc)
private long	getBufferLimit()
public Stub	getFirst()
private long	getIndexOf(Stub s)
public Stub	getNext(Stub s)
public int	getNumberOfStubs()
public Stub	getPrev(Stub s)
private long	getQueueBegin()
private long	getQueueEnd()
private Stub	getStubAt(long offset)
private Address	getStubBuffer()
public Stub	getStubContaining(Address pc)
private long	getStubSize(Stub s)
private static synchronized void	initialize(TypeDataBase db)
public boolean	stubContains(Stub s, Address pc)

Inherited from sun.jvm.hotspot.runtime.VMObject:: equals getAddress hashCode toString

Field Detail

bufferLimitField	back to summary
private static CIntegerField bufferLimitField

numberOfStubsField	back to summary
private static CIntegerField numberOfStubsField

queueBeginField	back to summary
private static CIntegerField queueBeginField

queueEndField	back to summary
private static CIntegerField queueEndField

stubBufferField	back to summary
private static AddressField stubBufferField

stubType	back to summary
private Class<?> stubType

Constructor Detail

StubQueue	back to summary
public StubQueue(Address addr, Class<T> stubType)

Method Detail

checkIndex	back to summary
private void checkIndex(long i)

contains	back to summary
public boolean contains(Address pc)

getBufferLimit	back to summary
private long getBufferLimit()

getFirst	back to summary
public Stub getFirst()

getIndexOf	back to summary
private long getIndexOf(Stub s)

getNext	back to summary
public Stub getNext(Stub s)

getNumberOfStubs	back to summary
public int getNumberOfStubs()

getPrev	back to summary
public Stub getPrev(Stub s)

getQueueBegin	back to summary
private long getQueueBegin()

getQueueEnd	back to summary
private long getQueueEnd()

getStubAt	back to summary
private Stub getStubAt(long offset)

getStubBuffer	back to summary
private Address getStubBuffer()

getStubContaining	back to summary
public Stub getStubContaining(Address pc)

getStubSize	back to summary
private long getStubSize(Stub s)

initialize	back to summary
private static synchronized void initialize(TypeDataBase db)