com.ibm.dtfj.image
Interface ImageThread
- public interface ImageThread
Method Summary
Modifier and Type | Method and Description |
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getID()
Fetch a unique identifier for the thread.
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getProperties()
Get the OS-specific properties for this thread.
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getRegisters()
Get the register contents.
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getStackFrames()
Get the set of stack frames on this thread.
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getStackSections()
Get the set of image sections which make up the stack.
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Method Detail
getID
- java.lang.String getID()
- throws CorruptDataException
Fetch a unique identifier for the thread.
In many operating systems, threads have more than one identifier (e.g.
a thread id, a handle, a pointer to VM structures associated with the thread).
In this case, one of these identifiers will be chosen as the canonical
one. The other identifiers would be returned by getProperties()
getStackFrames
- java.util.Iterator getStackFrames( )
- throws DataUnavailable
Get the set of stack frames on this thread.
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:
getStackSections
- java.util.Iterator getStackSections( )
Get the set of image sections which make up the stack.
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:
getRegisters
- java.util.Iterator getRegisters( )
Get the register contents.
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:
getProperties
- java.util.Properties getProperties( )
Get the OS-specific properties for this thread.
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