Struct DataHasher 

pub struct DataHasher { /* private fields */ }

Streaming Data-Code generator.

Incrementally processes data with content-defined chunking (CDC) and MinHash to produce an ISCC Data-Code identical to gen_data_code_v0 for the same byte stream. Uses a persistent internal buffer to avoid per-call heap allocations.

Implementations

impl DataHasher

pub fn new() -> Self

Create a new DataHasher.

pub fn update(&mut self, data: &[u8])

Push data into the hasher.

Appends data to the internal buffer (which starts with the retained tail from the previous call), runs CDC, hashes all complete chunks, and shifts the last chunk (tail) to the front of the buffer for the next call. The buffer is reused across calls to avoid allocations.

pub fn finalize(self, bits: u32) -> IsccResult<DataCodeResult>

Consume the hasher and produce a Data-Code result.

Equivalent to calling gen_data_code_v0 with the concatenation of all data passed to update.

Trait Implementations

impl Default for DataHasher

fn default() -> Self

Create a new DataHasher (delegates to new()).