Module openj9.dtfj

Package com.ibm.dtfj.java.javacore

Class JCJavaMonitor

java.lang.Object

com.ibm.dtfj.java.javacore.JCJavaMonitor

All Implemented Interfaces:

JavaMonitor

public class JCJavaMonitor
extends Object
implements JavaMonitor

Constructor Summary

Constructors

Constructor	Description
JCJavaMonitor(JCJavaRuntime javaRuntime, ImagePointer monitorPointer, String name)

Method Summary

Modifier and Type	Method	Description
void	addEnterWaiter(ImagePointer threadID)	NOT in DTFJ
void	addNotifyWaiter(ImagePointer threadID)	NOT in DTFJ
Iterator	getEnterWaiters()	Get the set of threads waiting to enter the monitor
ImagePointer	getID()	Get the identifier for this monitor
String	getName()	Note that the name of a JavaMonitor is not necessarily meaningful but is provided here as it is usually present in the running VM.
Iterator	getNotifyWaiters()	Get the set of threads waiting to be notified on the monitor (in the Object.wait method)
JavaObject	getObject()	Get the object associated with this monitor.
JavaThread	getOwner()	Get the thread which currently owns the monitor
void	setObject(JavaObject encompassingObject)	NOT in DTFJ
void	setOwner(long javaThread)	NOT in DTFJ

Methods declared in class java.lang.Object

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

Methods declared in interface com.ibm.dtfj.java.JavaMonitor

equals, hashCode

Constructor Details

JCJavaMonitor

public JCJavaMonitor(JCJavaRuntime javaRuntime,
 ImagePointer monitorPointer,
 String name)
              throws JCInvalidArgumentsException

Throws:

JCInvalidArgumentsException

Method Details

getID

public ImagePointer getID()

Description copied from interface: JavaMonitor

Get the identifier for this monitor

Specified by:

getID in interface JavaMonitor

Returns:

The pointer which uniquely identifies this monitor in memory.

getName

public String getName()
               throws CorruptDataException

Description copied from interface: JavaMonitor

Note that the name of a JavaMonitor is not necessarily meaningful but is provided here as it is usually present in the running VM. If there is no name for the monitor a synthetic name will be created by DTFJ.

Specified by:

getName in interface JavaMonitor

Returns:

the name of the monitor (never null)

Throws:

CorruptDataException

getEnterWaiters

public Iterator getEnterWaiters()

Description copied from interface: JavaMonitor

Get the set of threads waiting to enter the monitor

Specified by:

getEnterWaiters in interface JavaMonitor

Returns:

an iterator over the collection of threads waiting to enter this monitor

See Also:

• JavaThread
• CorruptData

getNotifyWaiters

public Iterator getNotifyWaiters()

Description copied from interface: JavaMonitor

Get the set of threads waiting to be notified on the monitor (in the Object.wait method)

Specified by:

getNotifyWaiters in interface JavaMonitor

Returns:

an iterator over the collection of threads waiting to be notified on this monitor

See Also:

• JavaThread
• CorruptData

getObject

public JavaObject getObject()

Description copied from interface: JavaMonitor

Get the object associated with this monitor.

Specified by:

getObject in interface JavaMonitor

Returns:

the object associated with this monitor, or null if this is a raw monitor or a valid object could not be retrieved.

getOwner

public JavaThread getOwner()
                    throws CorruptDataException

Description copied from interface: JavaMonitor

Get the thread which currently owns the monitor

Specified by:

getOwner in interface JavaMonitor

Returns:

the owner of the monitor, or null if the monitor is unowned

Throws:

CorruptDataException

addEnterWaiter

public void addEnterWaiter(ImagePointer threadID)

NOT in DTFJ

Parameters:

threadID -

addNotifyWaiter

public void addNotifyWaiter(ImagePointer threadID)

NOT in DTFJ

Parameters:

threadID -

setObject

public void setObject(JavaObject encompassingObject)

NOT in DTFJ

Parameters:

encompassingObject -

setOwner

public void setOwner(long javaThread)

NOT in DTFJ

Parameters:

javaThread -