Struct DevFileObject

pub struct DevFileObject {
    node: Arc<DevNode>,
    position: RwLock<u64>,
    device_id: usize,
    device_type: DeviceType,
    device_guard: Option<Arc<dyn Device>>,
}

A file object for device files in DevFS

This struct provides a FileObject implementation that delegates device operations to the underlying device registered in DeviceManager.

Fields

node: Arc<DevNode>

Reference to the DevNode

position: RwLock<u64>

Current file position (for seekable devices)

device_id: usize

Device ID for lookup in DeviceManager

device_type: DeviceType

Device type

device_guard: Option<Arc<dyn Device>>

Optional device guard for device files

Implementations

impl DevFileObject

pub fn new( node: Arc<DevNode>, device_id: usize, device_type: DeviceType, ) -> Result<Self, FileSystemError>

Create a new file object for device files

fn read_device(&self, buffer: &mut [u8]) -> Result<usize, FileSystemError>

Read from the underlying device

fn write_device(&self, buffer: &[u8]) -> Result<usize, FileSystemError>

Write to the underlying device

Trait Implementations

impl FileObject for DevFileObject

fn seek(&self, whence: SeekFrom) -> Result<u64, StreamError>

Seek to a position in the file stream

fn metadata(&self) -> Result<FileMetadata, StreamError>

Get metadata about the file

fn truncate(&self, _size: u64) -> Result<(), StreamError>

Truncate the file to the specified size

impl StreamOps for DevFileObject

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

Read data from the stream

fn write(&self, buffer: &[u8]) -> Result<usize, StreamError>

Write data to the stream