Package io.perfmark.java15

Class HiddenClassVarHandleMarkHolder

java.lang.Object

io.perfmark.impl.MarkHolder

io.perfmark.java15.MarkHolderRecorder

io.perfmark.java15.HiddenClassVarHandleMarkHolder

final class HiddenClassVarHandleMarkHolder
extends MarkHolderRecorder

HiddenClassVarHandleMarkHolder is a MarkHolder optimized for wait free writes and few reads.

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	ATTACH_SN_OP
private static final long	ATTACH_SNN_OP
private static final long	ATTACH_SS_OP
private static final long	ATTACH_T_OP
private static final long	EVENT_OP
private static final long	EVENT_S_OP
private static final long	EVENT_T_OP
private static final long	GEN_MASK
private static final long[]	genOps
private static long	idx
private static final VarHandle	IDX
private static final long	LINK_OP
private static final VarHandle	LONGS
(package private) static final int	MAX_EVENTS	These are a magic number, read the top level doc for explanation.
(package private) static final long	MAX_EVENTS_MASK
private static final long[]	nanoTimes
private final MarkRecorderRef	ref
private static final long	START_OP
private static final long	START_S_OP
private static final long	START_T_OP
private static final long	STOP_OP
private static final long	STOP_S_OP
private static final long	STOP_T_OP
private static final long	STOP_V_OP
private static final VarHandle	STRINGS
private static final long[]	tagIds
private static final String[]	tagNames
private static final String[]	taskNames

Fields inherited from class io.perfmark.impl.MarkHolder

NO_MAX_MARKS

Constructor Summary

Constructors

Constructor	Description
HiddenClassVarHandleMarkHolder(MarkRecorderRef ref)

Method Summary

Modifier and Type	Method	Description
(package private) void	attachKeyedTag(long gen, String name, long value)
(package private) void	attachKeyedTag(long gen, String name, long value0, long value1)
(package private) void	attachKeyedTag(long gen, String name, String value)
(package private) void	attachTag(long gen, String tagName, long tagId)
(package private) void	eventAt(long gen, String eventName, long nanoTime)
(package private) void	eventAt(long gen, String eventName, String subEventName, long nanoTime)
(package private) void	eventAt(long gen, String eventName, String tagName, long tagId, long nanoTime)
(package private) void	link(long gen, long linkId)
private static int	maxEvents()
private static long	maxEventsMask()
int	maxMarks()
List<MarkList>	read()
(package private) static List<Mark>	read(boolean concurrentWrites)
void	resetForAll()	Attempts to remove all Marks in this mark holder.
void	resetForThread()	Attempts to remove all Marks for the calling thread.
(package private) static void	resetHolderForThread()
(package private) void	startAt(long gen, String taskName, long nanoTime)
(package private) void	startAt(long gen, String taskName, String subTaskName, long nanoTime)
(package private) void	startAt(long gen, String taskName, String tagName, long tagId, long nanoTime)
(package private) void	stopAt(long gen, long nanoTime)
(package private) void	stopAt(long gen, String taskName, long nanoTime)
(package private) void	stopAt(long gen, String taskName, String subTaskName, long nanoTime)
(package private) void	stopAt(long gen, String taskName, String tagName, long tagId, long nanoTime)

Methods inherited from class io.perfmark.impl.MarkHolder

read

Methods inherited from class java.lang.Object

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

Field Details

GEN_MASK

private static final long GEN_MASK

See Also:

• Constant Field Values

START_OP

private static final long START_OP

See Also:

• Constant Field Values

START_S_OP

private static final long START_S_OP

See Also:

• Constant Field Values

START_T_OP

private static final long START_T_OP

See Also:

• Constant Field Values

STOP_OP

private static final long STOP_OP

See Also:

• Constant Field Values

STOP_V_OP

private static final long STOP_V_OP

See Also:

• Constant Field Values

STOP_T_OP

private static final long STOP_T_OP

See Also:

• Constant Field Values

STOP_S_OP

private static final long STOP_S_OP

See Also:

• Constant Field Values

EVENT_OP

private static final long EVENT_OP

See Also:

• Constant Field Values

EVENT_T_OP

private static final long EVENT_T_OP

See Also:

• Constant Field Values

EVENT_S_OP

private static final long EVENT_S_OP

See Also:

• Constant Field Values

LINK_OP

private static final long LINK_OP

See Also:

• Constant Field Values

ATTACH_T_OP

private static final long ATTACH_T_OP

See Also:

• Constant Field Values

ATTACH_SS_OP

private static final long ATTACH_SS_OP

See Also:

• Constant Field Values

ATTACH_SN_OP

private static final long ATTACH_SN_OP

See Also:

• Constant Field Values

ATTACH_SNN_OP

private static final long ATTACH_SNN_OP

See Also:

• Constant Field Values

IDX

private static final VarHandle IDX

STRINGS

private static final VarHandle STRINGS

LONGS

private static final VarHandle LONGS

MAX_EVENTS

static final int MAX_EVENTS

These are a magic number, read the top level doc for explanation.

See Also:

• Constant Field Values

MAX_EVENTS_MASK

static final long MAX_EVENTS_MASK

See Also:

• Constant Field Values

idx

private static volatile long idx

taskNames

private static final String[] taskNames

tagNames

private static final String[] tagNames

tagIds

private static final long[] tagIds

nanoTimes

private static final long[] nanoTimes

genOps

private static final long[] genOps

ref

private final MarkRecorderRef ref

Constructor Details

HiddenClassVarHandleMarkHolder

HiddenClassVarHandleMarkHolder(MarkRecorderRef ref)

Method Details

maxEvents

private static int maxEvents()

maxEventsMask

private static long maxEventsMask()

startAt

void startAt(long gen,
 String taskName,
 String tagName,
 long tagId,
 long nanoTime)

Specified by:

startAt in class MarkHolderRecorder

startAt

void startAt(long gen,
 String taskName,
 long nanoTime)

Specified by:

startAt in class MarkHolderRecorder

startAt

void startAt(long gen,
 String taskName,
 String subTaskName,
 long nanoTime)

Specified by:

startAt in class MarkHolderRecorder

link

void link(long gen,
 long linkId)

Specified by:

link in class MarkHolderRecorder

stopAt

void stopAt(long gen,
 long nanoTime)

Specified by:

stopAt in class MarkHolderRecorder

stopAt

void stopAt(long gen,
 String taskName,
 String tagName,
 long tagId,
 long nanoTime)

Specified by:

stopAt in class MarkHolderRecorder

stopAt

void stopAt(long gen,
 String taskName,
 long nanoTime)

Specified by:

stopAt in class MarkHolderRecorder

stopAt

void stopAt(long gen,
 String taskName,
 String subTaskName,
 long nanoTime)

Specified by:

stopAt in class MarkHolderRecorder

eventAt

void eventAt(long gen,
 String eventName,
 String tagName,
 long tagId,
 long nanoTime)

Specified by:

eventAt in class MarkHolderRecorder

eventAt

void eventAt(long gen,
 String eventName,
 long nanoTime)

Specified by:

eventAt in class MarkHolderRecorder

eventAt

void eventAt(long gen,
 String eventName,
 String subEventName,
 long nanoTime)

Specified by:

eventAt in class MarkHolderRecorder

attachTag

void attachTag(long gen,
 String tagName,
 long tagId)

Specified by:

attachTag in class MarkHolderRecorder

attachKeyedTag

void attachKeyedTag(long gen,
 String name,
 long value)

Specified by:

attachKeyedTag in class MarkHolderRecorder

attachKeyedTag

void attachKeyedTag(long gen,
 String name,
 long value0,
 long value1)

Specified by:

attachKeyedTag in class MarkHolderRecorder

attachKeyedTag

void attachKeyedTag(long gen,
 String name,
 String value)

Specified by:

attachKeyedTag in class MarkHolderRecorder

resetForThread

public void resetForThread()

Description copied from class: MarkHolder

Attempts to remove all Marks for the calling thread.

Overrides:

resetForThread in class MarkHolder

resetForAll

public void resetForAll()

Description copied from class: MarkHolder

Attempts to remove all Marks in this mark holder.

Overrides:

resetForAll in class MarkHolder

read

public List<MarkList> read()

Specified by:

read in class MarkHolder

maxMarks

public int maxMarks()

Overrides:

maxMarks in class MarkHolder

resetHolderForThread

static void resetHolderForThread()

read

static List<Mark> read(boolean concurrentWrites)