Esempio n. 1
0
// Doubly-linked list of Threads per action for class/classloader pair
// Class circularity support: links in thread before loading superclass
// bootstrapsearchpath support: links in a thread before load_instance_class
// definers: use as queue of define requestors, including owner of
// define token. Appends for debugging of requestor order
  void add_seen_thread(Thread* thread, PlaceholderTable::classloadAction action) {
    assert_lock_strong(SystemDictionary_lock);
    SeenThread* threadEntry = new SeenThread(thread);
    SeenThread* seen = actionToQueue(action);

    if (seen == NULL) {
      set_threadQ(threadEntry, action);
      return;
    }
    SeenThread* next;
    while ((next = seen->next()) != NULL) {
      seen = next;
    }
    seen->set_next(threadEntry);
    threadEntry->set_prev(seen);
    return;
  }
Esempio n. 2
0
 // returns true if seenthreadQ is now empty
 // Note, caller must ensure probe still exists while holding
 // SystemDictionary_lock
 // ignores if cleanup has already been done
 // if found, deletes SeenThread
 bool remove_seen_thread(Thread* thread, PlaceholderTable::classloadAction action) {
   assert_lock_strong(SystemDictionary_lock);
   SeenThread* threadQ = actionToQueue(action);
   SeenThread* seen = threadQ;
   SeenThread* prev = NULL;
   while (seen) {
     if (thread == seen->thread()) {
       if (prev) {
         prev->set_next(seen->next());
       } else {
         set_threadQ(seen->next(), action);
       }
       if (seen->next()) {
         seen->next()->set_prev(prev);
       }
       delete seen;
       break;
     }
     prev = seen;
     seen = seen->next();
   }
   return (actionToQueue(action) == NULL);
 }