/**
* Return the expected reference count. For non-reference counting collectors this becomes a
* true/false relationship.
*
* @param object The object to check.
* @param sanityRootRC The number of root references to the object.
* @return The expected (root excluded) reference count.
*/
public int sanityExpectedRC(ObjectReference object, int sanityRootRC) {
Space space = Space.getSpaceForObject(object);
// Nursery
if (space == Gen.nurserySpace) {
return SanityChecker.DEAD;
}
// Immortal spaces
if (space == Gen.immortalSpace || space == Gen.vmSpace) {
return space.isReachable(object) ? SanityChecker.ALIVE : SanityChecker.DEAD;
}
// Mature space (nursery collection)
if (VM.activePlan.global().isCurrentGCNursery()) {
return SanityChecker.UNSURE;
}
// Mature space (full heap collection)
return space.isReachable(object) ? SanityChecker.ALIVE : SanityChecker.DEAD;
}
/**
* Return the expected reference count. For non-reference counting collectors this becomes a
* true/false relationship.
*
* @param object The object to check.
* @param sanityRootRC The number of root references to the object.
* @return The expected (root excluded) reference count.
*/
public int sanityExpectedRC(ObjectReference object, int sanityRootRC) {
Space space = Space.getSpaceForObject(object);
return space.isReachable(object) ? SanityChecker.ALIVE : SanityChecker.DEAD;
}