Struct driver_block::ramdisk::RamDisk

pub struct RamDisk { /* private fields */ }

Available on crate feature ramdisk only.

A RAM disk that stores data in a vector.

Implementations

impl RamDisk

pub fn new(size_hint: usize) -> Self

Creates a new RAM disk with the given size hint.

The actual size of the RAM disk will be aligned upwards to the block size (512 bytes).

pub fn from(buf: &[u8]) -> Self

Creates a new RAM disk from the exiting data.

The actual size of the RAM disk will be aligned upwards to the block size (512 bytes).

pub unsafe fn copy_from_slice(&mut self, vaddr: *const u8)

Copies the data from the given slice to the RAM disk.

Safety

The caller must ensure that the given slice is valid for the lifetime of the RAM disk.

pub const fn size(&self) -> usize

Returns the size of the RAM disk in bytes.

Trait Implementations

impl BaseDriverOps for RamDisk

fn device_type(&self) -> DeviceType

The type of the device.

fn device_name(&self) -> &str

The name of the device.

impl BlockDriverOps for RamDisk

fn num_blocks(&self) -> u64

The number of blocks in this storage device.

fn block_size(&self) -> usize

The size of each block in bytes.

fn read_block(&mut self, block_id: u64, buf: &mut [u8]) -> DevResult

Reads blocked data from the given block.

fn write_block(&mut self, block_id: u64, buf: &[u8]) -> DevResult

Writes blocked data to the given block.

fn flush(&mut self) -> DevResult

Flushes the device to write all pending data to the storage.

impl Default for RamDisk

fn default() -> RamDisk

Returns the “default value” for a type.