VMRecordIterator(MemPointerArray* arr) : _itr(arr) {
MemPointerRecord* cur = (MemPointerRecord*)_itr.current();
MemPointerRecord* next = (MemPointerRecord*)_itr.peek_next();
while (next != NULL) {
assert(cur != NULL, "Sanity check");
assert(((SeqMemPointerRecord*)next)->seq() > ((SeqMemPointerRecord*)cur)->seq(),
"pre-sort order");
if (is_duplicated_record(cur, next)) {
_itr.next();
next = (MemPointerRecord*)_itr.peek_next();
} else {
break;
}
}
}
// get next record, but skip the duplicated records
virtual MemPointer* next() {
MemPointerRecord* cur = (MemPointerRecord*)_itr.next();
MemPointerRecord* next = (MemPointerRecord*)_itr.peek_next();
while (next != NULL) {
assert(cur != NULL, "Sanity check");
assert(((SeqMemPointerRecord*)next)->seq() > ((SeqMemPointerRecord*)cur)->seq(),
"pre-sort order");
if (is_duplicated_record(cur, next)) {
_itr.next();
cur = next;
next = (MemPointerRecord*)_itr.peek_next();
} else {
break;
}
}
return cur;
}
virtual MemPointer* current() const {
#ifdef ASSERT
MemPointer* cur_rec = _itr.current();
if (cur_rec != NULL) {
MemPointer* prev_rec = _itr.peek_prev();
MemPointer* next_rec = _itr.peek_next();
assert(prev_rec == NULL || prev_rec->addr() < cur_rec->addr(), "Sorting order");
assert(next_rec == NULL || next_rec->addr() > cur_rec->addr(), "Sorting order");
}
#endif
return _itr.current();
}
