Struct OwnedSlice 

pub struct OwnedSlice { /* private fields */ }

Owned slice over an Arc<dyn BlockRead>. Use when the parent’s lifetime can’t be expressed in a borrow — e.g. when the slice is handed across an FFI boundary or stored in a long-lived struct.

Implementations

impl OwnedSlice

pub fn new(parent: Arc<dyn BlockRead>, start: u64, length: u64) -> Self

pub fn start(&self) -> u64

pub fn length(&self) -> u64

Trait Implementations

impl BlockDevice for OwnedSlice

Same rationale as SliceReader: read-only by default.

fn write_at(&self, _offset: u64, _buf: &[u8]) -> Result<()>

Write exactly buf.len() bytes at offset. Default: returns Error::ReadOnly.

fn flush(&self) -> Result<()>

Flush pending writes to stable storage. No-op by default.

fn is_writable(&self) -> bool

Whether write_at is likely to succeed. Mount paths use this to decide whether to attempt journal replay or stay strict-read-only.

impl BlockRead for OwnedSlice

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

Read exactly buf.len() bytes starting at offset (bytes from the start of the device).

fn size_bytes(&self) -> u64

Total device size in bytes. Used for bounds checks.