Class DumpSegregatedStatsCommand

java.lang.Object

com.ibm.j9ddr.tools.ddrinteractive.Command

com.ibm.j9ddr.vm29.tools.ddrinteractive.commands.DumpSegregatedStatsCommand

All Implemented Interfaces:

ICommand

public class DumpSegregatedStatsCommand
extends Command

Nested Class Summary

Nested classes/interfaces declared in class Command

Command.CommandDescription

Modifier and Type	Class	Description
protected class	Command.CommandDescription

Field Summary

Fields declared in class Command

nl

Modifier and Type	Field	Description
protected static final String	nl

Constructor Summary

Constructors

Constructor	Description
DumpSegregatedStatsCommand()

Method Summary

Modifier and Type	Method	Description
long	getFreeCellCount(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionDescriptorSegregatedPointer heapRegionDescriptor)	Count the number of free cells in the MM_HeapRegionDescriptorSegregatedPointer freelist
long	getFreeCellCount(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionListPointer heapRegionList)	Count the number of free cells in the entire MM_HeapRegionList
long	getTotalRegions(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionListPointer heapRegionList)	Based off of MM_HeapRegionQueue::getTotalRegions.
void	run(String command, String[] args, Context context, PrintStream out)	Executes the command

Methods declared in class Command

addCommand, addSubCommand, dbgFindPatternInRange, getCommandDescriptions, getCommandNames, printDetailedHelp, recognises

Modifier and Type	Method	Description
Command.CommandDescription	addCommand(String name, String argDescription, String helpDescription)
void	addSubCommand(Command.CommandDescription command, String name, String argDescription, String helpDescription)
protected long	dbgFindPatternInRange(Context context, byte[] pattern, int patternAlignment, long startSearchFrom, BigInteger bytesToSearch)
Collection<String>	getCommandDescriptions()
Set<String>	getCommandNames()
void	printDetailedHelp(PrintStream out)	This prints the detailed help for the command by listing all the names that this command can be invoked by and also any sub commands that have been defined.
boolean	recognises(String command, Context context)	Method used by the DDR Interactive engine to decide whether this command matches the command passed in by the user

Methods declared in class Object

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

Constructor Details

DumpSegregatedStatsCommand

public DumpSegregatedStatsCommand()

Method Details

getTotalRegions

public long getTotalRegions(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionListPointer heapRegionList)
                     throws CorruptDataException

Based off of MM_HeapRegionQueue::getTotalRegions. Returns the number of regions. This function will calculate the number of regions differently according to the type of the actual subclass.

Throws:

CorruptDataException

getFreeCellCount

public long getFreeCellCount(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionListPointer heapRegionList)
                      throws CorruptDataException

Count the number of free cells in the entire MM_HeapRegionList

Throws:

CorruptDataException

getFreeCellCount

public long getFreeCellCount(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionDescriptorSegregatedPointer heapRegionDescriptor)
                      throws CorruptDataException

Count the number of free cells in the MM_HeapRegionDescriptorSegregatedPointer freelist

Throws:

CorruptDataException

run

public void run(String command,
 String[] args,
 Context context,
 PrintStream out)
         throws DDRInteractiveCommandException

Description copied from interface: ICommand

Executes the command

Parameters:

command - Command string e.g. !j9x

args - Arguments for command

context - Context to work in

out - PrintStream to write command output on

Throws:

DDRInteractiveCommandException - If there is any problem running the command (incorrect usage, CorruptData etc.)