Struct AxDisk

pub struct AxDisk { /* private fields */ }

Available on crate features fs and myfs only.

A disk device with a cursor.

Implementations

impl Disk

pub fn new(dev: <VirtIoBlk as VirtIoDevMeta>::Device) -> Disk

Create a new disk.

pub fn size(&self) -> u64

Get the size of the disk.

pub fn position(&self) -> u64

Get the position of the cursor.

pub fn set_position(&mut self, pos: u64)

Set the position of the cursor.

pub fn read_one(&mut self, buf: &mut [u8]) -> Result<usize, DevError>

Read within one block, returns the number of bytes read.

pub fn write_one(&mut self, buf: &[u8]) -> Result<usize, DevError>

Write within one block, returns the number of bytes written.

pub fn read_offset(&mut self, offset: usize) -> [u8; 512]

Read a single block starting from the specified offset.

pub fn write_offset( &mut self, offset: usize, buf: &[u8], ) -> Result<usize, DevError>

Write single block starting from the specified offset.