SortTODObjectReferenceStack (Jikes RVM API)

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org.mmtk.utility.deque
Class SortTODObjectReferenceStack

java.lang.Object
  org.mmtk.utility.deque.Deque
      org.mmtk.utility.deque.LocalSSB
          org.mmtk.utility.deque.LocalQueue
              org.mmtk.utility.deque.LocalDeque
                  org.mmtk.utility.deque.SortTODObjectReferenceStack

All Implemented Interfaces:: Constants

public class SortTODObjectReferenceStack
extends LocalDeque
implements Constants
extends LocalDeque
implements Constants

This supports unsynchronized pushing and popping of object references. In addition, this can sort the entries currently on the shared stack.

Field Summary

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`

Fields inherited from interface org.mmtk.utility.Constants
ALIGNMENT_VALUE, ARRAY_ELEMENT, BITS_IN_ADDRESS, BITS_IN_BYTE, BITS_IN_CHAR, BITS_IN_INT, BITS_IN_PAGE, BITS_IN_SHORT, BITS_IN_WORD, BYTES_IN_ADDRESS, BYTES_IN_BYTE, BYTES_IN_CHAR, BYTES_IN_INT, BYTES_IN_KBYTE, BYTES_IN_MBYTE, BYTES_IN_PAGE, BYTES_IN_SHORT, BYTES_IN_WORD, CARD_MASK, CARD_META_PAGES_PER_REGION, INSTANCE_FIELD, LOG_BITS_IN_ADDRESS, LOG_BITS_IN_BYTE, LOG_BITS_IN_CHAR, LOG_BITS_IN_INT, LOG_BITS_IN_PAGE, LOG_BITS_IN_SHORT, LOG_BITS_IN_WORD, LOG_BYTES_IN_ADDRESS, LOG_BYTES_IN_ADDRESS_SPACE, LOG_BYTES_IN_BYTE, LOG_BYTES_IN_CHAR, LOG_BYTES_IN_INT, LOG_BYTES_IN_KBYTE, LOG_BYTES_IN_MBYTE, LOG_BYTES_IN_PAGE, LOG_BYTES_IN_SHORT, LOG_BYTES_IN_WORD, LOG_CARD_BYTES, LOG_CARD_GRAIN, LOG_CARD_META_BYTES, LOG_CARD_META_PAGES, LOG_CARD_META_SIZE, LOG_CARD_UNITS, LOG_MIN_ALIGNMENT, MAX_ALIGNMENT, MAX_BYTES_PADDING, MAX_INT, MIN_ALIGNMENT, MIN_INT, SUPPORT_CARD_SCANNING

Fields inherited from interface org.mmtk.utility.Constants

ALIGNMENT_VALUE, ARRAY_ELEMENT, BITS_IN_ADDRESS, BITS_IN_BYTE, BITS_IN_CHAR, BITS_IN_INT, BITS_IN_PAGE, BITS_IN_SHORT, BITS_IN_WORD, BYTES_IN_ADDRESS, BYTES_IN_BYTE, BYTES_IN_CHAR, BYTES_IN_INT, BYTES_IN_KBYTE, BYTES_IN_MBYTE, BYTES_IN_PAGE, BYTES_IN_SHORT, BYTES_IN_WORD, CARD_MASK, CARD_META_PAGES_PER_REGION, INSTANCE_FIELD, LOG_BITS_IN_ADDRESS, LOG_BITS_IN_BYTE, LOG_BITS_IN_CHAR, LOG_BITS_IN_INT, LOG_BITS_IN_PAGE, LOG_BITS_IN_SHORT, LOG_BITS_IN_WORD, LOG_BYTES_IN_ADDRESS, LOG_BYTES_IN_ADDRESS_SPACE, LOG_BYTES_IN_BYTE, LOG_BYTES_IN_CHAR, LOG_BYTES_IN_INT, LOG_BYTES_IN_KBYTE, LOG_BYTES_IN_MBYTE, LOG_BYTES_IN_PAGE, LOG_BYTES_IN_SHORT, LOG_BYTES_IN_WORD, LOG_CARD_BYTES, LOG_CARD_GRAIN, LOG_CARD_META_BYTES, LOG_CARD_META_PAGES, LOG_CARD_META_SIZE, LOG_CARD_UNITS, LOG_MIN_ALIGNMENT, MAX_ALIGNMENT, MAX_BYTES_PADDING, MAX_INT, MIN_ALIGNMENT, MIN_INT, SUPPORT_CARD_SCANNING

Constructor Summary
`SortTODObjectReferenceStack(SortTODSharedDeque queue)` Constructor

Method Summary
`boolean`	`isEmpty()` Check if the (local and shared) stacks are empty.
`ObjectReference`	`pop()` Pop an address from the address stack, return zero if the stack is empty.
`void`	`push(ObjectReference object)` Push an address onto the address stack.
`void`	`sort()` Sort the address on the shared stack.

Methods inherited from class org.mmtk.utility.deque.LocalDeque
`checkHeadInsert, flushLocal, uncheckedHeadInsert`

Methods inherited from class org.mmtk.utility.deque.LocalQueue
`checkDequeue, headStarved, resetLocal, uncheckedDequeue`

Methods inherited from class org.mmtk.utility.deque.LocalSSB
`bufferSentinel, checkTailInsert, 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`

Constructor Detail

SortTODObjectReferenceStack

public SortTODObjectReferenceStack(SortTODSharedDeque queue)

Constructor

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

Method Detail

sort

public final void sort()

Sort the address on the shared stack.

push

public final void push(ObjectReference object)

Push an address onto the address stack.

Parameters:: object - the object to be pushed onto the object queue

pop

public final ObjectReference pop()

Pop an address from the address stack, return zero if the stack is empty.

Returns:: The next address in the address stack, or zero if the stack is empty

isEmpty

public final boolean isEmpty()

Check if the (local and shared) stacks are empty.

Returns:: True if there are no more entries on the local & shared stack, false otherwise.