Struct FileBlockDevice 

pub struct FileBlockDevice { /* private fields */ }

File-backed block device for black-box tests and desktop experiments.

This backend performs direct local-file reads and writes. sync forwards to the host file’s data-sync operation so file-handle flush/sync tests exercise a real backend boundary. Like MemoryBlockDevice, prog preserves NOR semantics by reading the current bytes, applying old & new, and writing the result back to the file.

Implementations

impl FileBlockDevice

pub fn create_erased<P: AsRef<Path>>(path: P, cfg: Config) -> Result<Self>

pub fn open<P: AsRef<Path>>(path: P, cfg: Config) -> Result<Self>

pub fn from_bytes<P: AsRef<Path>>( path: P, cfg: Config, bytes: &[u8], ) -> Result<Self>

Trait Implementations

impl BlockDevice for FileBlockDevice

Available on crate feature std only.

fn config(&self) -> Config

fn read(&self, block: u32, off: usize, out: &mut [u8]) -> Result<()>

fn prog(&mut self, block: u32, off: usize, data: &[u8]) -> Result<()>

fn erase(&mut self, block: u32) -> Result<()>

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

impl Debug for FileBlockDevice

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.