Struct MemoryDevice 

pub struct MemoryDevice {
    pub bytes: Vec<u8>,
    pub label: String,
}

In-memory Device impl used by unit tests. Backed by a Vec<u8>.

Fields

bytes: Vec<u8>

label: String

Implementations

impl MemoryDevice

pub fn new(size: u64) -> Self

Trait Implementations

impl Device for MemoryDevice

fn size_bytes(&self) -> Result<u64>

Total addressable bytes of the underlying device.

fn read_at(&mut self, offset: u64, buf: &mut [u8]) -> Result<()>

Read exactly buf.len() bytes at offset. Errors if read short.

fn write_at(&mut self, offset: u64, buf: &[u8]) -> Result<()>

Write exactly buf.len() bytes at offset. Errors if write short.

fn sync(&mut self) -> Result<()>

Force any buffered writes to the physical medium.

fn describe(&self) -> String

Human-readable identifier for log messages and the confirm prompt. e.g. “/dev/rdisk8 (64 GB SanDisk Cruzer)” or “in-memory test device”.