Struct FdpStorageBackend 

pub struct FdpStorageBackend { /* private fields */ }

FDP-aware storage backend.

Wraps another StorageBackend and emits FDP placement hints before writes on platforms that support NVMe 2.0 Flexible Data Placement. On unsupported platforms, the hint is silently ignored (logged at info!).

Implementations

impl FdpStorageBackend

pub fn new(inner: Box<dyn StorageBackend>) -> Self

Wrap an existing backend with FDP hints.

Trait Implementations

impl StorageBackend for FdpStorageBackend

fn read( &self, path: &Path, offset: u64, data: &mut [u8], ) -> Result<usize, EdgestoreError>

Read data_len bytes from path starting at offset.

fn write( &self, path: &Path, offset: u64, data: &[u8], ) -> Result<(), EdgestoreError>

Write data to path starting at offset.

fn write_with_hint( &self, path: &Path, offset: u64, data: &[u8], hint: PlacementHint, ) -> Result<(), EdgestoreError>

Write data with an optional placement hint.

fn flush(&self, path: &Path) -> Result<(), EdgestoreError>

Ensure all prior writes to path are durable.

fn read_all(&self, path: &Path) -> Result<Vec<u8>, EdgestoreError>

Read the entire file contents at path.