kits/storage/PathMonitor.cpp

186 			// ancestor. In practice this complicates the transitions when an
187 			// ancestor is created/removed/moved.
190 			TRACE("  started to watch ancestor %p (\"%s\", %#" B_PRIx32
553 			status_t			_StartWatchingAncestors(Ancestor* ancestor,
555 			void				_StopWatchingAncestors(Ancestor* ancestor,
933 	Ancestor* ancestor = NULL;
945 		ancestor = new(std::nothrow) Ancestor(ancestor, ancestorPath,
947 		TRACE("  created ancestor %p (\"%s\" / \"%s\")\n", ancestor,
948 			ancestor->Path().String(), ancestor->Name());
949 		if (ancestor == NULL)
953 			fRoot = ancestor;
958 	fBaseAncestor = ancestor;
975 	for (Ancestor* ancestor = startAncestor; ancestor != NULL;
976 		ancestor = ancestor->Child()) {
977 		status_t error = ancestor->StartWatching(watchFlags, this);
981 		if (!ancestor->Exists()) {
982 			TRACE("  -> ancestor doesn't exist\n");
986 		fAncestors.Insert(ancestor);
1012 PathHandler::_StopWatchingAncestors(Ancestor* ancestor, bool notify)
1029 	for (; ancestor != NULL; ancestor = ancestor->Child()) {
1030 		if (ancestor->Exists())
1031 			fAncestors.Remove(ancestor);
1032 		ancestor->StopWatching(this);
1245 			debugger("path ancestor exists, but doesn't have a directory");
1256 		// is set, or an ancestor might be affected.
1291 	// An entry was moved in a true ancestor directory or between true ancestor
1292 	// directories. Unless the moved entry was or becomes our base ancestor, we
1301 		// ancestor as required.
1356 	if (Ancestor* ancestor = _GetAncestor(nodeRef)) {
1357 		if (ancestor != fBaseAncestor)
1359 		isDirectory = ancestor->IsDirectory();
1382 	Ancestor* ancestor = _GetAncestor(nodeRef);
1383 	if (ancestor != NULL) {
1384 		if (isDirectory == ancestor->IsDirectory()
1385 			&& entryRef == ancestor->EntryRef()) {
1387 			TRACE("  -> we already know the ancestor\n");
1392 		if (BEntry(&ancestor->EntryRef()).GetStat(&ancestorStat) == B_OK
1394 				== ancestor->NodeRef()
1395 			&& S_ISDIR(ancestorStat.st_mode) == ancestor->IsDirectory()) {
1396 			// Our information for the ancestor is up-to-date, so ignore the
1398 			TRACE("  -> we know a different ancestor, but our info is "
1404 		TRACE("  -> ancestor mismatch -> resyncing\n");
1406 			_StopWatchingAncestors(ancestor, true);
1407 			_StartWatchingAncestors(ancestor, true);
1412 	ancestor = _GetAncestor(entryRef.DirectoryNodeRef());
1413 	if (ancestor != NULL) {
1414 		if (ancestor != fBaseAncestor) {
1415 			// The directory is a true ancestor -- the notification is only of
1416 			// interest, if the entry matches the child ancestor.
1417 			Ancestor* childAncestor = ancestor->Child();
1419 				TRACE("  -> not an ancestor entry we're interested in "
1426 					TRACE("  ancestor entry mismatch -> resyncing\n");
1432 				TRACE("  -> starting to watch newly appeared ancestor\n");
1511 	Ancestor* ancestor = _GetAncestor(nodeRef);
1512 	if (ancestor != NULL) {
1513 		// The node is an ancestor. If this is a true match, stop watching the
1514 		// ancestor.
1515 		if (!ancestor->Exists())
1518 		if (entryRef != ancestor->EntryRef()) {
1522 			if (BEntry(&ancestor->EntryRef()).GetStat(&ancestorStat) != B_OK) {
1524 					_StopWatchingAncestors(ancestor, true);
1529 					!= ancestor->NodeRef()
1530 				|| S_ISDIR(ancestorStat.st_mode) != ancestor->IsDirectory()) {
1532 					_StopWatchingAncestors(ancestor, true);
1533 					_StartWatchingAncestors(ancestor, true);
1541 			_StopWatchingAncestors(ancestor, true);
1545 	ancestor = _GetAncestor(entryRef.DirectoryNodeRef());
1546 	if (ancestor != NULL) {
1547 		if (ancestor != fBaseAncestor) {
1548 			// The directory is a true ancestor -- the notification cannot be
1549 			// of interest, since the node didn't match a known ancestor.