void ObjectHeader::clear_remember() {
for(;;) {
if(inflated_header_p()) {
inflated_header()->clear_remember();
return;
} else {
HeaderWord orig = header;
orig.f.inflated = 0;
HeaderWord new_val = orig;
new_val.f.Remember = 0;
if(header.atomic_set(orig, new_val)) return;
}
}
}
void ObjectHeader::set_zone(gc_zone zone) {
for(;;) {
if(inflated_header_p()) {
inflated_header()->set_zone(zone);
return;
} else {
HeaderWord orig = header;
orig.f.inflated = 0;
HeaderWord new_val = orig;
new_val.f.zone = zone;
if(header.atomic_set(orig, new_val)) return;
}
}
}
void ObjectHeader::set_lock_contended() {
for(;;) {
if(inflated_header_p()) {
inflated_header()->set_lock_contended();
return;
} else {
HeaderWord orig = header;
orig.f.inflated = 0;
HeaderWord new_val = orig;
new_val.f.LockContended = 1;
if(header.atomic_set(orig, new_val)) return;
}
}
}
void ObjectHeader::unpin() {
for(;;) {
if(inflated_header_p()) {
inflated_header()->unpin();
return;
} else {
HeaderWord orig = header;
orig.f.inflated = 0;
HeaderWord new_val = orig;
new_val.f.Pinned = 0;
if(header.atomic_set(orig, new_val)) return;
}
}
}
void ObjectHeader::set_in_immix() {
for(;;) {
if(inflated_header_p()) {
inflated_header()->set_in_immix();
return;
} else {
HeaderWord orig = header;
orig.f.inflated = 0;
HeaderWord new_val = orig;
new_val.f.InImmix = 1;
if(header.atomic_set(orig, new_val)) return;
}
}
}
void ObjectHeader::mark(unsigned int which) {
for(;;) {
if(inflated_header_p()) {
inflated_header()->mark(which);
return;
} else {
HeaderWord orig = header;
orig.f.inflated = 0;
HeaderWord new_val = orig;
new_val.f.Marked = which;
if(header.atomic_set(orig, new_val)) return;
}
}
}
void ObjectHeader::set_age(unsigned int age) {
for(;;) {
if(inflated_header_p()) {
inflated_header()->set_age(age);
return;
} else {
HeaderWord orig = header;
orig.f.inflated = 0;
HeaderWord new_val = orig;
new_val.f.age = age;
if(header.atomic_set(orig, new_val)) return;
}
}
}
void set_forward(ObjectHeader* fwd) {
// If the header is inflated, repoint it.
if(inflated_header_p()) {
InflatedHeader* ih = deflate_header();
ih->set_object(fwd);
fwd->set_inflated_header(ih);
}
flags().Forwarded = 1;
// DO NOT USE klass() because we need to get around the
// write barrier!
ivars_ = reinterpret_cast<Object*>(fwd);
}
void ObjectHeader::clear_handle(STATE) {
for(;;) {
if(inflated_header_p()) {
inflated_header()->set_handle(state, NULL);
return;
} else {
HeaderWord orig = header;
orig.f.meaning = eAuxWordHandle;
HeaderWord new_val = orig;
new_val.f.meaning = eAuxWordEmpty;
new_val.f.aux_word = 0;
if(header.atomic_set(orig, new_val)) return;
}
}
}
bool ObjectHeader::pin() {
// Can't pin young objects!
if(young_object_p()) return false;
for(;;) {
if(inflated_header_p()) {
return inflated_header()->pin();
} else {
HeaderWord orig = header;
orig.f.inflated = 0;
HeaderWord new_val = orig;
new_val.f.Pinned = 1;
if(header.atomic_set(orig, new_val)) return true;
}
}
return true;
}
ObjectFlags& flags() {
if(inflated_header_p()) return inflated_header()->flags();
return header.f;
}
ObjectFlags& flags() const {
if(inflated_header_p()) return inflated_header()->flags();
return const_cast<ObjectFlags&>(header.f);
}