Class ImageProcess
java.lang.Object
com.ibm.dtfj.image.j9.ImageProcess
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Constructor Summary
ConstructorDescriptionImageProcess
(String pid, String commandLine, Properties environment, ImageThread currentThread, Iterator threads, ImageModule executable, Iterator libraries, int pointerSize) -
Method Summary
Modifier and TypeMethodDescriptionvoid
Fetch the command line for this process.Find the thread which triggered the creation of the imageGet the environment variables for this process.Get the module representing the executable within the image.getID()
Get the system-wide identifier for the process.Get the set of shared libraries which are loaded in this process.int
Determine the pointer size used by this process.Gets the OS specific properties for this process.Get the set of the known ManagedRuntime environments in the image.Get the name of the OS signal in this process which triggered the creation of this image.int
Get the OS signal number in this process which triggered the creation of this image.Get the set of image threads in the image.void
Called if the early extraction of the data from the meta-data and core file failed in some unrecoverable way.protected void
setCurrentThread
(ImageThread thread) void
setFaultingThreadID
(long nativeID) void
setSignalNumber
(int signalNumber) TODO: REMOVE THIS once there is a reliable way to find signal numbers from ImageThreads on all platforms!protected void
setThreads
(Iterator threads)
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Constructor Details
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ImageProcess
public ImageProcess(String pid, String commandLine, Properties environment, ImageThread currentThread, Iterator threads, ImageModule executable, Iterator libraries, int pointerSize)
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Method Details
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getCommandLine
Description copied from interface:ImageProcess
Fetch the command line for this process. This may be the exact command line the user issued, or it may be a reconstructed command line based on argv[] and argc.- Specified by:
getCommandLine
in interfaceImageProcess
- Returns:
- the command line for the process
- Throws:
DataUnavailable
- if the information cannot be providedCorruptDataException
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getEnvironment
Description copied from interface:ImageProcess
Get the environment variables for this process.- Specified by:
getEnvironment
in interfaceImageProcess
- Returns:
- the environment variables for this process
- Throws:
DataUnavailable
- if the information cannot be providedCorruptDataException
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getID
Description copied from interface:ImageProcess
Get the system-wide identifier for the process.- Specified by:
getID
in interfaceImageProcess
- Returns:
- a system-wide identifier for the process (e.g. a process id (pid) on Unix like systems)
- Throws:
DataUnavailable
- if the information cannot be providedCorruptDataException
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getLibraries
Description copied from interface:ImageProcess
Get the set of shared libraries which are loaded in this process.- Specified by:
getLibraries
in interfaceImageProcess
- Returns:
- an iterator to iterate over the shared libraries which are loaded in this process
- Throws:
DataUnavailable
- if the information cannot be providedCorruptDataException
- See Also:
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getExecutable
Description copied from interface:ImageProcess
Get the module representing the executable within the image.- Specified by:
getExecutable
in interfaceImageProcess
- Returns:
- the module representing the executable within the image (as opposed to modules representing libraries)
- Throws:
DataUnavailable
- if the information cannot be providedCorruptDataException
- See Also:
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getThreads
Description copied from interface:ImageProcess
Get the set of image threads in the image.- Specified by:
getThreads
in interfaceImageProcess
- Returns:
- an iterator to iterate over each ImageThread in the image There is not necessarily any relationship between JavaThreads and ImageThreads. A JVM implementation may use an n:m mapping of JavaThreads to ImageThreads, and not all ImageThreads are necessarily attached.
- See Also:
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getCurrentThread
Description copied from interface:ImageProcess
Find the thread which triggered the creation of the image- Specified by:
getCurrentThread
in interfaceImageProcess
- Returns:
- the ImageThread which caused the image to be created, or null if the image was not created due to a specific thread
- Throws:
CorruptDataException
- See Also:
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getRuntimes
Description copied from interface:ImageProcess
Get the set of the known ManagedRuntime environments in the image.- Specified by:
getRuntimes
in interfaceImageProcess
- Returns:
- an iterator to iterate over all of the known ManagedRuntime environments in the image. In a typical image, there will be only one runtime, and it will be an instance of JavaRuntime. However any user of this API should be aware that there is a possibility that other runtimes may exist in the image
- See Also:
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getSignalNumber
Description copied from interface:ImageProcess
Get the OS signal number in this process which triggered the creation of this image.- Specified by:
getSignalNumber
in interfaceImageProcess
- Returns:
- the OS signal number in this process which triggered the creation of this image, or 0 if the image was not created because of a signal in this process
- Throws:
DataUnavailable
- if the information cannot be providedCorruptDataException
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getSignalName
Description copied from interface:ImageProcess
Get the name of the OS signal in this process which triggered the creation of this image.- Specified by:
getSignalName
in interfaceImageProcess
- Returns:
- the name of the OS signal in this process which triggered the creation of this image, or null if the image was not created because of a signal in this process
- Throws:
DataUnavailable
- if the information cannot be providedCorruptDataException
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getPointerSize
public int getPointerSize()Description copied from interface:ImageProcess
Determine the pointer size used by this process. Currently supported values are 31, 32 or 64. In the future, other pointer sizes may also be supported.- Specified by:
getPointerSize
in interfaceImageProcess
- Returns:
- the size of a pointer, in bits
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addRuntime
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setFaultingThreadID
public void setFaultingThreadID(long nativeID) -
setSignalNumber
public void setSignalNumber(int signalNumber) TODO: REMOVE THIS once there is a reliable way to find signal numbers from ImageThreads on all platforms!- Parameters:
signalNumber
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runtimeExtractionFailed
Called if the early extraction of the data from the meta-data and core file failed in some unrecoverable way. If this is called it essentially means that we are stuck in native Image data and can't describe anything from the Java side.- Parameters:
e
- The exception which caused the failure
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setThreads
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setCurrentThread
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getProperties
Description copied from interface:ImageProcess
Gets the OS specific properties for this process.- Specified by:
getProperties
in interfaceImageProcess
- Returns:
- a set of OS specific properties
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