Struct SnapshotWriter 

pub struct SnapshotWriter { /* private fields */ }

Writes a complete snapshot to disk.

Entries are written to a temporary file first, then atomically renamed to the final path. The caller provides an iterator over the entries to write.

Implementations

impl SnapshotWriter

pub fn create( path: impl Into<PathBuf>, shard_id: u16, ) -> Result<Self, FormatError>

Creates a new snapshot writer. The file won’t appear at path until Self::finish is called successfully.

pub fn write_entry(&mut self, entry: &SnapEntry) -> Result<(), FormatError>

Writes a single entry to the snapshot.

When encrypted, each entry is written as [nonce: 12B][len: 4B][ciphertext]. The footer CRC covers the encrypted bytes (nonce + len + ciphertext).

pub fn finish(self) -> Result<(), FormatError>

Finalizes the snapshot: writes the footer CRC, flushes, and atomically renames the temp file to the final path.

Trait Implementations

impl Drop for SnapshotWriter

fn drop(&mut self)

Executes the destructor for this type.