Module openj9.traceformat

Package com.ibm.jvm.format

Class TraceRecord50

java.lang.Object

com.ibm.jvm.format.TraceRecord50

All Implemented Interfaces:

Comparable

public class TraceRecord50
extends Object
implements Comparable

Extends Trace Record. Special processing needed for internal trace records.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	EXTERNAL_WRAP_SPLIT_TP
static final int	INTERNAL_WRAP_SPLIT_TP

Constructor Summary

Constructors

Constructor	Description
TraceRecord50()

Method Summary

Modifier and Type	Method	Description
boolean	addOverspillData(byte[] overspillFromPreviousBuffer, BigInteger upperWord)
int	compareTo(Object other)	Compares this object with the specified object for order.
byte[]	getExtraData()
String	getFileName()
BigInteger	getLastTimerWrap()
BigInteger	getLastUpperWord()
TracePoint	getNextTracePoint()
long	getOffsetInFile()
long	getThreadIDAsLong()
String	getThreadName()
BigInteger	getTimeStamp()
int	getTraceType()
boolean	isMiddleOfTracePoint()
boolean	primeRecord(TraceFile traceFile)	primeRecord readies this UtTraceRecord to have its tracepoint data read.
int	processTraceBufferHeader(TraceFile traceFile, long start, int bufferLength)
void	setTimeStamp(BigInteger newTimeStamp)
void	setTraceType(int traceType)

Methods declared in class java.lang.Object

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

Field Details

INTERNAL_WRAP_SPLIT_TP

public static final int INTERNAL_WRAP_SPLIT_TP

See Also:

• Constant Field Values

EXTERNAL_WRAP_SPLIT_TP

public static final int EXTERNAL_WRAP_SPLIT_TP

See Also:

• Constant Field Values

Constructor Details

TraceRecord50

public TraceRecord50()

Method Details

processTraceBufferHeader

public int processTraceBufferHeader(TraceFile traceFile,
 long start,
 int bufferLength)
                             throws IOException

Throws:

IOException

getNextTracePoint

public TracePoint getNextTracePoint()

addOverspillData

public boolean addOverspillData(byte[] overspillFromPreviousBuffer,
 BigInteger upperWord)

isMiddleOfTracePoint

public boolean isMiddleOfTracePoint()

getExtraData

public byte[] getExtraData()

primeRecord

public boolean primeRecord(TraceFile traceFile)
                    throws IOException

primeRecord readies this UtTraceRecord to have its tracepoint data read. Each tracepoint's length field is at the end of the tracepoint, so the tracepoints are formatted backwards out of the record. To enable forward iteration, the whole record must be formatted into a queue, which is then iterated over in reverse order. The record should already have been primed with e.g. it's location in the tracefile through it's constructor.

Parameters:

traceFile -

Returns:

true if it works, false if any errors are encountered. Errors are reported internally.

Throws:

IOException - if there is an error reading the record's data from the trace file.

getThreadName

public String getThreadName()

getThreadIDAsLong

public long getThreadIDAsLong()

getFileName

public String getFileName()

getOffsetInFile

public long getOffsetInFile()

getTimeStamp

public BigInteger getTimeStamp()

getLastTimerWrap

public BigInteger getLastTimerWrap()

setTimeStamp

public void setTimeStamp(BigInteger newTimeStamp)

compareTo

public int compareTo(Object other)

Description copied from interface: java.lang.Comparable

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

The implementor must ensure signum(x.compareTo(y)) == -signum(y.compareTo(x)) for all x and y. (This implies that x.compareTo(y) must throw an exception if and only if y.compareTo(x) throws an exception.)

The implementor must also ensure that the relation is transitive: (x.compareTo(y) > 0 && y.compareTo(z) > 0) implies x.compareTo(z) > 0.

Finally, the implementor must ensure that x.compareTo(y)==0 implies that signum(x.compareTo(z)) == signum(y.compareTo(z)), for all z.

Specified by:

compareTo in interface Comparable

Parameters:

other - the object to be compared.

Returns:

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

getTraceType

public int getTraceType()

setTraceType

public void setTraceType(int traceType)

getLastUpperWord

public BigInteger getLastUpperWord()