Module openj9.dtfj

Package com.ibm.j9ddr.view.dtfj.image

Class J9DDRStubImageThread

java.lang.Object

com.ibm.j9ddr.view.dtfj.image.J9DDRBaseImageThread

com.ibm.j9ddr.view.dtfj.image.J9DDRStubImageThread

All Implemented Interfaces:

ImageThread

public class J9DDRStubImageThread
extends J9DDRBaseImageThread
implements ImageThread

ImageThread used for when we can't find a matching thread in the image. Can only return its ID.

Field Summary

Fields declared in class com.ibm.j9ddr.view.dtfj.image.J9DDRBaseImageThread

process

Constructor Summary

Constructors

Constructor	Description
J9DDRStubImageThread(IProcess process, long id)

Method Summary

Modifier and Type	Method	Description
Properties	getProperties()	Get the OS-specific properties for this thread.
Iterator<?>	getRegisters()	Get the register contents.
Iterator<?>	getStackFrames()	Get the set of stack frames on this thread.
Iterator<?>	getStackSections()	Get the set of image sections which make up the stack.
long	getThreadId()

Methods declared in class com.ibm.j9ddr.view.dtfj.image.J9DDRBaseImageThread

getID

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.image.ImageThread

getID

Constructor Details

J9DDRStubImageThread

public J9DDRStubImageThread(IProcess process,
 long id)

Method Details

getProperties

public Properties getProperties()

Description copied from interface: ImageThread

Get the OS-specific properties for this thread.

Specified by:

getProperties in interface ImageThread

Returns:

a table of OS-specific properties for this thread. Values which are commonly available include

• "priority" -- the priority of the thread
• "policy" -- the scheduling policy of the thread

getRegisters

public Iterator<?> getRegisters()

Description copied from interface: ImageThread

Get the register contents.

Specified by:

getRegisters in interface ImageThread

Returns:

an iterator to iterate over the state of the CPU registers when the image was created. The collection may be empty if the register state is not available for this thread. If the CPU supports partial registers (e.g. AH, AL, AX, EAX, RAX on AMD64), only the largest version of the register will be included

See Also:

• ImageRegister

getStackFrames

public Iterator<?> getStackFrames()
                           throws DataUnavailable

Description copied from interface: ImageThread

Get the set of stack frames on this thread.

Specified by:

getStackFrames in interface ImageThread

Returns:

an iterator to walk the native stack frames in order from top-of-stack (that is, the most recent frame) to bottom-of-stack. Throws DataUnavailable if native stack frames are not available on this platform.

Throws:

DataUnavailable - If native stack frames are not available on this platform

See Also:

• ImageStackFrame
• CorruptData

getStackSections

public Iterator<?> getStackSections()

Description copied from interface: ImageThread

Get the set of image sections which make up the stack.

Specified by:

getStackSections in interface ImageThread

Returns:

a collection of ImageSections which make up the stack. On most platforms this consists of a single entry, but on some platforms the thread's stack may consist of non-contiguous sections

See Also:

• ImageSection
• CorruptData

getThreadId

public long getThreadId()
                 throws CorruptDataException

Throws:

CorruptDataException