Struct CheckSummer

pub struct CheckSummer {
    sum: u32,
}

Provides a simple API to perform a rolling CRC32C checksum.

Fields

sum: u32

Implementations

impl CheckSummer

pub fn new() -> CheckSummer

Create a new checksummer that can compute CRC32C checksums on arbitrary bytes.

pub fn masked(&self) -> u32

Returns the “masked” CRC32 checksum of the data so far using the Castagnoli polynomial. This “masked” checksum is the same one used by the Snappy frame format. Masking is supposed to make the checksum robust with respect to data that contains the checksum itself.

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

Update the current checksum with the checksum for the given bytes.

Trait Implementations

impl Clone for CheckSummer

fn clone(&self) -> CheckSummer

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CheckSummer

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

Formats the value using the given formatter.

impl Copy for CheckSummer