Struct PtySlaveNode 

pub struct PtySlaveNode { /* private fields */ }

VfsNode adapter for the slave side of a PTY.

Reading from this node returns bytes that the master has written (i.e. keyboard input forwarded to the shell). Writing to this node sends bytes to the master’s output buffer (the program’s output visible in the terminal emulator).

Implementations

impl PtySlaveNode

pub fn new(slave: PtySlave) -> Self

Wrap a PtySlave as a VfsNode.

pub fn pty_id(&self) -> u32

Return the PTY ID of this slave.

pub fn pts_path(&self) -> String

Return the path that would be exposed as the slave device name.

Trait Implementations

impl VfsNode for PtySlaveNode

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

Read bytes that the master wrote (keyboard input / program stdin).

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

Write bytes that the master will read (program output / terminal output).

fn node_type(&self) -> NodeType

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

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 link( &self, _name: &str, _target: Arc<dyn VfsNode>, ) -> Result<(), KernelError>

Create a hard link to this node

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

Create a symbolic link in this directory.

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

Read the target of a symbolic link.

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

Change permissions on 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.