Module openj9.dtfj

Package com.ibm.j9ddr.corereaders.memory

Class BufferedMemorySource

java.lang.Object

com.ibm.j9ddr.corereaders.memory.BaseMemoryRange

com.ibm.j9ddr.corereaders.memory.ProtectedMemoryRange

com.ibm.j9ddr.corereaders.memory.BufferedMemorySource

All Implemented Interfaces:

IMemoryRange, IMemorySource, Comparable<IMemoryRange>

public class BufferedMemorySource
extends ProtectedMemoryRange
implements IMemorySource

Serves as a ByteBuffer backed memory source.

See Also:

• com.ibm.j9ddr.tools.ddrinteractive.BufferedMemory

Field Summary

Fields declared in class com.ibm.j9ddr.corereaders.memory.ProtectedMemoryRange

executable, readOnly, shared

Fields declared in class com.ibm.j9ddr.corereaders.memory.BaseMemoryRange

baseAddress, size

Constructor Summary

Constructors

Constructor	Description
BufferedMemorySource(long address, ByteBuffer source)

Method Summary

Modifier and Type	Method	Description
int	getAddressSpaceId()
byte	getByte(long address)
ByteOrder	getByteOrder()
int	getBytes(long address, byte[] buffer, int offset, int length)	Reads data from the memory range
double	getDouble(long address)
int	getInt(long address)
long	getLong(long address)
String	getName()
short	getShort(long address)
int	getUnsignedShort(long address)

Methods declared in class com.ibm.j9ddr.corereaders.memory.ProtectedMemoryRange

isExecutable, isReadOnly, isShared

Methods declared in class com.ibm.j9ddr.corereaders.memory.BaseMemoryRange

compareTo, contains, getBaseAddress, getSize, getTopAddress, isBacked, isSubRange, overlaps

Methods declared in class java.lang.Object

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

Methods declared in interface java.lang.Comparable

compareTo

Methods declared in interface com.ibm.j9ddr.corereaders.memory.IMemoryRange

contains, getBaseAddress, getSize, getTopAddress, isExecutable, isReadOnly, isShared, isSubRange, overlaps

Methods declared in interface com.ibm.j9ddr.corereaders.memory.IMemorySource

isBacked

Constructor Details

BufferedMemorySource

public BufferedMemorySource(long address,
 ByteBuffer source)

Method Details

getUnsignedShort

public int getUnsignedShort(long address)
                     throws MemoryFault

Throws:

MemoryFault

getShort

public short getShort(long address)
               throws MemoryFault

Throws:

MemoryFault

getInt

public int getInt(long address)
           throws MemoryFault

Throws:

MemoryFault

getDouble

public double getDouble(long address)
                 throws MemoryFault

Throws:

MemoryFault

getLong

public long getLong(long address)
             throws MemoryFault

Throws:

MemoryFault

getByte

public byte getByte(long address)
             throws MemoryFault

Throws:

MemoryFault

getBytes

public int getBytes(long address,
 byte[] buffer,
 int offset,
 int length)
             throws MemoryFault

Description copied from interface: IMemorySource

Reads data from the memory range

Specified by:

getBytes in interface IMemorySource

Parameters:

address - Starting address

buffer - Buffer to read into

offset - Offset in buffer to write to

length - Number of bytes to read

Returns:

Bytes read

Throws:

MemoryFault

getByteOrder

public ByteOrder getByteOrder()

getName

public String getName()

Specified by:

getName in interface IMemoryRange

Returns:

Name of this range (e.g. .text or stack), or null if range is unnamed.

getAddressSpaceId

public int getAddressSpaceId()

Specified by:

getAddressSpaceId in interface IMemoryRange

Returns:

Address space ID that this range belongs to.