packagefs/volume/PackageFSRoot.cpp

26 mutex PackageFSRoot::sRootListLock = MUTEX_INITIALIZER("packagefs root list");
37 	rw_lock_init(&fLock, "packagefs root");
91 	// Unless the volume is custom mounted, we stat the supposed root directory.
92 	// Get the volume mount point relative path to the root directory depending
113 			dprintf("packagefs: Failed to get root directory \"%s\": %s\n",
123 			dprintf("packagefs: Failed to stat root directory \"%s\": %s\n",
128 		// get/create the root
129 		PackageFSRoot* root;
130 		error = PackageFSRoot::_GetOrCreateRoot(st.st_dev, st.st_ino, root);
135 		error = root->_AddVolume(volume);
137 			_PutRoot(root);
144 	// custom mount -- always create a new root
145 	PackageFSRoot* root = new(std::nothrow) PackageFSRoot(-1, 0);
146 	if (root == NULL)
148 	ObjectDeleter<PackageFSRoot> rootDeleter(root);
150 	status_t error = root->Init();
155 	error = root->_AddVolume(volume);
157 		_PutRoot(root);
161 	// We don't add the root to the list.
406 	// first check the list, if the root already exists
409 	if (PackageFSRoot* root = _FindRootLocked(deviceID, nodeID)) {
410 		root->AcquireReference();
411 		_root = root;
417 	// create a new root
418 	PackageFSRoot* root = new(std::nothrow) PackageFSRoot(deviceID, nodeID);
419 	if (root == NULL)
421 	ObjectDeleter<PackageFSRoot> rootDeleter(root);
423 	status_t error = root->Init();
427 	// add the root -- first recheck whether someone else added the root in the
438 	sRootList.Add(root);
449 			PackageFSRoot* root = it.Next();) {
450 		if (root->DeviceID() == deviceID && root->NodeID() == nodeID)
451 			return root;
459 PackageFSRoot::_PutRoot(PackageFSRoot* root)
462 	if (!root->IsCustom()) {
465 		// When releasing the last reference, remove the root from the list.
466 		if (root->CountReferences() == 1)
467 			sRootList.Remove(root);
472 	root->ReleaseReference();