+
+ struct ObjectHdr {
+ ID id;
+
+ union {
+ struct {
+ u32 Valid:1;
+ u32 Pointer:1;
+ };
+
+ u32 flags;
+ };
+ };
+
+ struct Object : public ObjectHdr {
+ Mem::ProcAddrSpace *aspace;
+ };
+
+ struct ObjectPtr : public ObjectHdr {
+ Object *object;
+ };
+
+ union ObjTableEntry {
+ ObjectHdr hdr;
+ Object obj;
+ ObjectPtr ptr;
+ };
+
+ typedef Util::RadixTree<ObjTableEntry, ID, 6> IDTable;
+ typedef Util::RBPtr<Object *, ObjectPtr *> IDRMap;
+ typedef Util::BitmapTree<ID> IDAlloc;
+
+ class IDSpace {
+ Lock::SpinLock lock; // For add/del only; not needed for lookup
+ IDTable table; // Forward mapping of local IDs to object ptrs
+ IDRMap rmap; // Reverse mapping of remote object pointers to local IDs
+ IDAlloc alloc; // Bitmap for allocating IDs
+
+ public:
+ Object *lookup(u32 id);
+ ObjectHdr *get_local(Object *obj);
+ Object *newobj(Mem::ProcAddrSpace *aspace);
+ };
+
+ void invoke_method(System::RunTime::ParamInfoBlock *pib, uintptr_t &stack);
+ uintptr_t return_from_method(uintptr_t &exptr, size_t &exlen);
+ void init();