pdom等待代码

final IIndexManager im = CCorePlugin.getIndexManager();
while (true)
            {
                if (CCoreInternals.getPDOMManager().isProjectRegistered(cProject))
                {
                    im.joinIndexer(Integer.MAX_VALUE, new NullProgressMonitor());
                    if (!im.isIndexerSetupPostponed(cProject))
                    {
                        break;
                    }
                }
                Thread.sleep(1000);
            }