org.mmtk.utility.deque

Class TraceBuffer

java.lang.Object

org.mmtk.utility.deque.Deque

org.mmtk.utility.deque.LocalSSB

org.mmtk.utility.deque.LocalQueue

org.mmtk.utility.deque.TraceBuffer

public class TraceBuffer
extends LocalQueue

This supports unsynchronized enqueuing and dequeuing of tracing data and bulk processing of the buffer.

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	OMIT_ALLOCS
static boolean	OMIT_BOOTALLOCS
static boolean	OMIT_OTHERS
static boolean	OMIT_OUTPUT
static boolean	OMIT_UNREACHABLES
static boolean	OMIT_UPDATES
private static Word	TRACE_ALLOC_FP
private static Word	TRACE_ALLOC_SIZE
private static Word	TRACE_ALLOC_THREAD
private static Word	TRACE_ARRAY_ELEMENT
private static Word	TRACE_ARRAY_TARGET
private static Word	TRACE_BOOT_ALLOC_SIZE
private static Word	TRACE_DEATH_TIME
private static Word	TRACE_FIELD_SLOT
private static Word	TRACE_FIELD_TARGET
private static Word	TRACE_NEW_RECORD
private static Word	TRACE_STATIC_TARGET
private static Word	TRACE_TIB_VALUE

Fields inherited from class org.mmtk.utility.deque.LocalQueue

head

Fields inherited from class org.mmtk.utility.deque.LocalSSB

queue, tail, tailBufferEnd

Fields inherited from class org.mmtk.utility.deque.Deque

BUFFER_MASK, BUFFER_SIZE, HEAD_INITIAL_VALUE, LOG_PAGES_PER_BUFFER, META_DATA_SIZE, NEXT_FIELD_OFFSET, PAGES_PER_BUFFER, TAIL_INITIAL_VALUE, USABLE_BUFFER_BYTES

Constructor Summary

Constructors

Constructor and Description
TraceBuffer(SharedDeque pool) Constructor

Method Summary

Modifier and Type	Method and Description
void	process() Process the data in the tracing buffer, output information as needed.
void	push(Word i) Push word onto the tracing queue.

Methods inherited from class org.mmtk.utility.deque.LocalQueue

checkDequeue, headStarved, resetLocal, uncheckedDequeue

Methods inherited from class org.mmtk.utility.deque.LocalSSB

bufferSentinel, checkTailInsert, flushLocal, isFlushed, normalizeTail, reset, uncheckedTailInsert

Methods inherited from class org.mmtk.utility.deque.Deque

bufferEnd, bufferFirst, bufferLast, bufferLast, bufferLastOffset, bufferOffset, bufferStart

Methods inherited from class java.lang.Object

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

Field Detail

TRACE_NEW_RECORD

private static final Word TRACE_NEW_RECORD

TRACE_ALLOC_SIZE

private static final Word TRACE_ALLOC_SIZE

TRACE_ALLOC_FP

private static final Word TRACE_ALLOC_FP

TRACE_ALLOC_THREAD

private static final Word TRACE_ALLOC_THREAD

TRACE_TIB_VALUE

private static final Word TRACE_TIB_VALUE

TRACE_DEATH_TIME

private static final Word TRACE_DEATH_TIME

TRACE_FIELD_TARGET

private static final Word TRACE_FIELD_TARGET

TRACE_ARRAY_TARGET

private static final Word TRACE_ARRAY_TARGET

TRACE_FIELD_SLOT

private static final Word TRACE_FIELD_SLOT

TRACE_ARRAY_ELEMENT

private static final Word TRACE_ARRAY_ELEMENT

TRACE_STATIC_TARGET

private static final Word TRACE_STATIC_TARGET

TRACE_BOOT_ALLOC_SIZE

private static final Word TRACE_BOOT_ALLOC_SIZE

OMIT_ALLOCS

public static final boolean OMIT_ALLOCS

See Also:

Constant Field Values

OMIT_UPDATES

public static final boolean OMIT_UPDATES

See Also:

Constant Field Values

OMIT_BOOTALLOCS

public static final boolean OMIT_BOOTALLOCS

See Also:

Constant Field Values

OMIT_UNREACHABLES

public static final boolean OMIT_UNREACHABLES

See Also:

Constant Field Values

OMIT_OTHERS

public static final boolean OMIT_OTHERS

See Also:

Constant Field Values

OMIT_OUTPUT

public static final boolean OMIT_OUTPUT

See Also:

Constant Field Values

Constructor Detail

TraceBuffer

public TraceBuffer(SharedDeque pool)

Constructor

Parameters:

pool - The shared queue to which this queue will append its buffers (when full or flushed) and from which it will aquire new buffers when it has exhausted its own.

Method Detail

push

public final void push(Word i)

Push word onto the tracing queue.

Parameters:

i - The data to be pushed onto the tracing queue

process

public final void process()

Process the data in the tracing buffer, output information as needed.