Struct BlockFsNode 

pub struct BlockFsNode { /* private fields */ }

BlockFS node implementation

Implementations

impl BlockFsNode

pub fn new(inode_num: u32, fs: Arc<RwLock<BlockFsInner>>) -> Self

Trait Implementations

impl VfsNode for BlockFsNode

fn readlink(&self) -> Result<String, KernelError>

Read the target of a symbolic link in BlockFS.

Delegates to BlockFsInner::read_symlink which checks whether this inode has the symlink mode bit set (0xA000) and, if so, reads the target path from the inode’s data blocks.

Returns FsError::NotASymlink if this node is not a symlink.

fn node_type(&self) -> NodeType

Node type query (also serves as vtable slot padding for AArch64)

fn read(&self, offset: usize, buffer: &mut [u8]) -> Result<usize, KernelError>

Read data from the node

fn write(&self, offset: usize, data: &[u8]) -> Result<usize, KernelError>

Write data to the node

fn metadata(&self) -> Result<Metadata, KernelError>

Get metadata for the node

fn readdir(&self) -> Result<Vec<DirEntry>, KernelError>

List directory entries (if this is a directory)

fn lookup(&self, name: &str) -> Result<Arc<dyn VfsNode>, KernelError>

Look up a child node by name (if this is a directory)

fn create( &self, name: &str, permissions: Permissions, ) -> Result<Arc<dyn VfsNode>, KernelError>

Create a new file in this directory

fn mkdir( &self, name: &str, permissions: Permissions, ) -> Result<Arc<dyn VfsNode>, KernelError>

Create a new directory in this directory

fn unlink(&self, name: &str) -> Result<(), KernelError>

Remove a file or empty directory

fn truncate(&self, size: usize) -> Result<(), KernelError>

Truncate the file to the specified size

fn symlink( &self, name: &str, target: &str, ) -> Result<Arc<dyn VfsNode>, KernelError>

Create a symbolic link in this directory.

fn chmod(&self, permissions: Permissions) -> Result<(), KernelError>

Change permissions on this node

fn link(&self, name: &str, target: Arc<dyn VfsNode>) -> Result<(), KernelError>

Create a hard link to this node

fn poll_readiness(&self) -> u16

Poll readiness for I/O multiplexing (poll/epoll).

fn as_any(&self) -> Option<&dyn Any>

Downcast to &dyn core::any::Any for type-specific operations.