netfs/client/QueryManager.cpp

35 	// delete all iterator lists (there shouldn't be any, though)
51 	// allocate iterator map
64 QueryManager::AddIterator(QueryIterator* iterator)
66 	if (!iterator || !iterator->GetVolume())
71 	// get the iterator list for the volume
72 	vnode_id nodeID = iterator->GetVolume()->GetRootID();
88 	// add the iterator
89 	iteratorList->Insert(iterator);
91 	// get a volume reference for the iterator
92 	iterator->GetVolume()->AcquireReference();
99 QueryManager::AddSubIterator(HierarchicalQueryIterator* iterator,
102 	if (!iterator || !subIterator)
109 	iterator->AddSubIterator(subIterator);
116 QueryManager::RemoveSubIterator(HierarchicalQueryIterator* iterator,
119 	if (!iterator || !subIterator)
123 	if (subIterator->GetParentIterator() != iterator)
126 	iterator->RemoveSubIterator(subIterator);
133 QueryManager::GetCurrentSubIterator(HierarchicalQueryIterator* iterator)
135 	if (!iterator)
139 	QueryIterator* subIterator = iterator->GetCurrentSubIterator();
147 QueryManager::NextSubIterator(HierarchicalQueryIterator* iterator,
150 	if (iterator) {
152 		if (iterator->GetCurrentSubIterator() == subIterator)
153 			iterator->NextSubIterator();
159 QueryManager::RewindSubIterator(HierarchicalQueryIterator* iterator)
161 	if (iterator) {
163 		iterator->RewindSubIterator();
169 QueryManager::PutIterator(QueryIterator* iterator)
171 	if (!iterator)
175 	if (iterator->ReleaseReference()) {
176 		// last reference removed: remove the iterator
181 				= dynamic_cast<HierarchicalQueryIterator*>(iterator)) {
185 		// remove from the parent iterator
187 			= iterator->GetParentIterator();
189 			parentIterator->RemoveSubIterator(iterator);
192 		vnode_id nodeID = iterator->GetVolume()->GetRootID();
195 			iteratorList->Remove(iterator);
203 			ERROR("QueryManager::PutIterator(): ERROR: No iterator list "
204 				"for volume %p!\n", iterator->GetVolume());
207 		// free the iterator and surrender its volume reference
208 		Volume* volume = iterator->GetVolume();
210 		volume->FreeQueryIterator(iterator);
238 		QueryIterator* iterator = iteratorList->First();
239 		while (iterator) {
240 			QueryIterator* nextIterator = iteratorList->GetNext(iterator);
242 			if (iterator->GetParentIterator()) {
245 						= dynamic_cast<HierarchicalQueryIterator*>(iterator)) {
250 				iterator->GetParentIterator()->RemoveSubIterator(iterator);
253 				if (iterator->ReleaseReference()) {
255 					iteratorList->Remove(iterator);
256 					iterators.Insert(iterator);
260 			iterator = nextIterator;
272 		while (QueryIterator* iterator = iterators.First()) {
273 			iterators.Remove(iterator);
274 			volume->FreeQueryIterator(iterator);