Module openj9.dtfj

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

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 com.ibm.j9ddr.tools.ddrinteractive.Command

Command.CommandDescription

Field Summary

Fields declared in class com.ibm.j9ddr.tools.ddrinteractive.Command

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 com.ibm.j9ddr.tools.ddrinteractive.Command

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

Methods declared in class java.lang.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.)