/**
* Called when the immix::GC object wishes to mark an object.
*
* @returns true if the object is not already marked, and in the Immix
* space; otherwise false.
*/
inline bool mark_address(memory::Address addr, immix::MarkStack& ms, bool push = true) {
Object* obj = addr.as<Object>();
if(obj->marked_p(object_memory_->mark())) return false;
obj->mark(object_memory_, object_memory_->mark());
if(push) ms.push_back(addr);
// If this is a young object, let the GC know not to try and mark
// the block it's in.
return obj->in_immix_p();
}
/**
* Called when the immix::GC object wishes to mark an object.
*
* @returns true if the object is not already marked, and in the Immix
* space; otherwise false.
*/
bool mark_address(memory::Address addr, immix::MarkStack& ms) {
Object* obj = addr.as<Object>();
if(obj->marked_p(object_memory_->mark())) return false;
obj->mark(object_memory_->mark());
gc_->inc_marked_objects();
ms.push_back(addr);
if(obj->in_immix_p()) return true;
// If this is a young object, let the GC know not to try and mark
// the block it's in.
return false;
}
Object* call(Object* obj) {
if(watched_p(obj)) {
std::cout << "detected " << obj << " during unmarking.\n";
}
if(obj->reference_p() && obj->marked_p(object_memory_->mark())) {
obj->clear_mark();
stack_.push_back(obj);
}
return obj;
}
memory::Address update_pointer(memory::Address addr) {
Object* obj = addr.as<Object>();
if(!obj) return memory::Address::null();
if(obj->young_object_p()) {
if(obj->forwarded_p()) return obj->forward();
return memory::Address::null();
} else {
// we must remember this because it might
// contain references to young gen objects
object_memory_->remember_object(obj);
}
return addr;
}
~GCInhibit() {
om_->allow_gc();
}
