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OwnedSegmentReader

nodedb_columnar::reader

Struct OwnedSegmentReader

pub struct OwnedSegmentReader { /* private fields */ }

Expand description

An owned segment reader that holds decrypted segment bytes.

Used when a segment was encrypted at rest: the decrypted plaintext is owned by this struct, and reader() borrows from it for column decoding.

Implementations§

impl OwnedSegmentReader

pub fn open_with_kek( blob: &[u8], kek: Option<&WalEncryptionKey>, ) -> Result<Self, ColumnarError>

Open a segment with optional at-rest decryption.

kek = None → requires a plaintext (NDBS) segment; returns Err(MissingKek) if the blob starts with SEGC.
kek = Some(key) → requires an encrypted (SEGC) segment; decrypts the blob, then parses the inner plaintext. Returns Err(KekRequired) if the blob starts with NDBS.

pub fn reader(&self) -> SegmentReader<'_>

Borrow a SegmentReader over the owned plaintext bytes.

Access the segment footer.

pub fn row_count(&self) -> u64

Total row count in the segment.

Trait Implementations§

impl Debug for OwnedSegmentReader

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl Freeze for OwnedSegmentReader

impl RefUnwindSafe for OwnedSegmentReader

impl Send for OwnedSegmentReader

impl Sync for OwnedSegmentReader

impl Unpin for OwnedSegmentReader

impl UnsafeUnpin for OwnedSegmentReader

impl UnwindSafe for OwnedSegmentReader

Blanket Implementations§

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