Struct Crc32c 

pub struct Crc32c { /* private fields */ }

Incremental CRC-32C (Castagnoli) checksum.

Google Cloud Storage reports this checksum for direct transfers. Resumed reads first add the retained prefix and then the fetched remainder, which produces the same full-object checksum as an uninterrupted read.

Implementations

impl Crc32c

pub fn new() -> Self

Starts an empty digest.

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

Folds the next piece of the payload in, in order.

pub fn finish(self) -> Checksum

Closes the digest over everything fed so far.

The value is the big-endian spelling of the 32-bit result, which is what the raw checksum bytes are on the wire and therefore what the hex here has to be.

Trait Implementations

impl Debug for Crc32c

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

Formats the value using the given formatter.

impl Default for Crc32c

fn default() -> Crc32c

Returns the “default value” for a type.