javax.realtime
Class RefCountArea

java.lang.Object
  |
  +--javax.realtime.MemoryArea
        |
        +--javax.realtime.ImmortalMemory
              |
              +--javax.realtime.RefCountArea

public class RefCountArea

extends ImmortalMemory

RefCountArea is a new MemoryArea which allows access from anywhere, access to ImmortalMemory and the heap, where objects live as long as there are references to them. Performance is upper-bounded by a constant for every assignment and for every allocation. No pauses at any other time are permitted. Cycles are strictly prohibited (use roles analysis). Performance for this MemoryArea is expected to be slightly slower than for VTMemory's.

Field Summary

private static javax.realtime.RefCountArea

refCountArea

Fields inherited from class javax.realtime.ImmortalMemory

Fields inherited from class javax.realtime.MemoryArea

constant, heap, id, logic, memoryConsumed, nullClassArr, nullMem, nullObjArr, scoped, shadow, size

Constructor Summary

RefCountArea()

Method Summary

void	DECREF(java.lang.Object o)
void	INCREF(java.lang.Object o) These two methods will go away in the future...
protected void	initNative(long sizeInBytes) Initialize the native component of this MemoryArea.
static javax.realtime.RefCountArea	refInstance() Returns the only RefCountArea instance, allocated out of an ImmortalMemory.
java.lang.String	toString() Output a helpful string describing this MemoryArea.

Methods inherited from class javax.realtime.ImmortalMemory

instance

Methods inherited from class javax.realtime.MemoryArea

bless, checkAccess, checkNewInstance, enter, enter, enterMemBlock, executeInArea, exitMemBlock, getMemoryArea, getOuterScope, memoryConsumed, memoryRemaining, newArray, newArray, newArray, newArray, newInstance, newInstance, newInstance, newInstance, postSetup, preSetup, registerFinal, shadow, size, startMem, stopMem, throwIllegalAssignmentError

Methods inherited from class java.lang.Object

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

Field Detail

refCountArea

private static javax.realtime.RefCountArea refCountArea

Constructor Detail

RefCountArea

public RefCountArea()

Method Detail

initNative

protected void initNative(long sizeInBytes)

Initialize the native component of this MemoryArea.

Overrides:

initNative in class ImmortalMemory

refInstance

public static javax.realtime.RefCountArea refInstance()

Returns the only RefCountArea instance, allocated out of an ImmortalMemory.

INCREF

public void INCREF(java.lang.Object o)

These two methods will go away in the future...

DECREF

public void DECREF(java.lang.Object o)

toString

public java.lang.String toString()

Description copied from class: MemoryArea

Output a helpful string describing this MemoryArea.

Overrides:

toString in class ImmortalMemory