Struct axfs_ramfs::DirNode

pub struct DirNode { /* private fields */ }

The directory node in the RAM filesystem.

It implements axfs_vfs::VfsNodeOps.

Implementations

impl DirNode

pub fn get_entries(&self) -> Vec<String>

Returns a string list of all entries in this directory.

pub fn exist(&self, name: &str) -> bool

Checks whether a node with the given name exists in this directory.

pub fn create_node(&self, name: &str, ty: VfsNodeType) -> VfsResult

Creates a new node with the given name and type in this directory.

pub fn remove_node(&self, name: &str) -> VfsResult

Removes a node by the given name in this directory.

Trait Implementations

impl VfsNodeOps for DirNode

fn get_attr(&self) -> VfsResult<VfsNodeAttr>

Get the attributes of the node.

fn parent(&self) -> Option<VfsNodeRef>

Get the parent directory of this directory.

fn lookup(self: Arc<Self>, path: &str) -> VfsResult<VfsNodeRef>

Lookup the node with given path in the directory.

fn read_dir( &self, start_idx: usize, dirents: &mut [VfsDirEntry] ) -> VfsResult<usize>

Read directory entries into dirents, starting from start_idx.

fn create(&self, path: &str, ty: VfsNodeType) -> VfsResult

Create a new node with the given path in the directory

fn remove(&self, path: &str) -> VfsResult

Remove the node with the given path in the directory.

fn read_at(&self, _offset: u64, _buf: &mut [u8]) -> VfsResult<usize>

Read data from the file at the given offset.

fn write_at(&self, _offset: u64, _buf: &[u8]) -> VfsResult<usize>

Write data to the file at the given offset.

fn fsync(&self) -> VfsResult

Flush the file, synchronize the data to disk.

fn truncate(&self, _size: u64) -> VfsResult

Truncate the file to the given size.

fn as_any(&self) -> &dyn Any

Convert &self to &dyn Any that can use Any::downcast_ref.

fn open(&self) -> Result<(), AxError>

Do something when the node is opened.

fn release(&self) -> Result<(), AxError>

Do something when the node is closed.

fn rename(&self, _src_path: &str, _dst_path: &str) -> Result<(), AxError>

Renames or moves existing file or directory.