HeapColor ParallelScavengeHeap::get_current_color(oop obj)
{
guarantee(UseColoredSpaces, "not using colored spaces!");
guarantee(is_in(obj), "obj not in a colored space!");
if (is_in_young(obj)) {
if (young_gen()->eden_space()->contains(obj)) {
if (((MutableColoredSpace*)young_gen()->eden_space())->
colored_spaces()->at(HC_RED)->space()->contains(obj)) {
return HC_RED;
}
guarantee(((MutableColoredSpace*)young_gen()->eden_space())->
colored_spaces()->at(HC_BLUE)->space()->contains(obj), "wtf");
return HC_BLUE;
} else if (young_gen()->from_space()->contains(obj)) {
if (((MutableColoredSpace*)young_gen()->from_space())->
colored_spaces()->at(HC_RED)->space()->contains(obj)) {
return HC_RED;
}
guarantee(((MutableColoredSpace*)young_gen()->from_space())->
colored_spaces()->at(HC_BLUE)->space()->contains(obj), "wtf");
return HC_BLUE;
} else {
if (((MutableColoredSpace*)young_gen()->to_space())->
colored_spaces()->at(HC_RED)->space()->contains(obj)) {
return HC_RED;
}
guarantee(((MutableColoredSpace*)young_gen()->to_space())->
colored_spaces()->at(HC_BLUE)->space()->contains(obj), "wtf");
return HC_BLUE;
}
} else {
if (((MutableColoredSpace*)old_gen()->object_space())->
colored_spaces()->at(HC_RED)->space()->contains(obj)) {
return HC_RED;
}
guarantee(((MutableColoredSpace*)old_gen()->object_space())->
colored_spaces()->at(HC_BLUE)->space()->contains(obj), "wtf");
return HC_BLUE;
}
}
bool ParallelScavengeHeap::can_elide_initializing_store_barrier(oop new_obj) {
// We don't need barriers for stores to objects in the
// young gen and, a fortiori, for initializing stores to
// objects therein.
return is_in_young(new_obj);
}
bool ParallelScavengeHeap::is_scavengable(const void* addr) {
return is_in_young((oop)addr);
}
