src/share/vm/gc/shared/workgroup.cpp

*** 497,541 ****
      clear();
      return true;
    }
    return false;
  }
- 
- FreeIdSet::FreeIdSet(uint size, Monitor* mon) :
-   _size(size), _mon(mon), _hd(0), _waiters(0), _claimed(0)
- {
-   guarantee(size != 0, "must be");
-   _ids = NEW_C_HEAP_ARRAY(uint, size, mtGC);
-   for (uint i = 0; i < size - 1; i++) {
-     _ids[i] = i+1;
-   }
-   _ids[size-1] = end_of_list; // end of list.
- }
- 
- FreeIdSet::~FreeIdSet() {
-   FREE_C_HEAP_ARRAY(uint, _ids);
- }
- 
- uint FreeIdSet::claim_par_id() {
-   MutexLockerEx x(_mon, Mutex::_no_safepoint_check_flag);
-   while (_hd == end_of_list) {
-     _waiters++;
-     _mon->wait(Mutex::_no_safepoint_check_flag);
-     _waiters--;
-   }
-   uint res = _hd;
-   _hd = _ids[res];
-   _ids[res] = claimed;  // For debugging.
-   _claimed++;
-   return res;
- }
- 
- void FreeIdSet::release_par_id(uint id) {
-   MutexLockerEx x(_mon, Mutex::_no_safepoint_check_flag);
-   assert(_ids[id] == claimed, "Precondition.");
-   _ids[id] = _hd;
-   _hd = id;
-   _claimed--;
-   if (_waiters > 0) {
-     _mon->notify_all();
-   }
- }
--- 497,501 ----