Struct rollsum::gear::Gear

pub struct Gear { /* fields omitted */ }

Implementations

impl Gear

pub fn new() -> Self

Create new Gear engine with default chunking settings

pub fn new_with_chunk_bits(chunk_bits: u32) -> Self

Create new Gear engine with custom chunking settings

chunk_bits is number of bits that need to match in the edge condition. CHUNK_BITS constant is the default.

pub fn find_chunk_edge(&mut self, buf: &[u8]) -> Option<(usize, u64)>

Find chunk edge using Gear defaults.

See Engine::find_chunk_edge_cond.

Trait Implementations

impl Default for Gear

fn default() -> Self

Returns the "default value" for a type.

impl Engine for Gear

type Digest = u64

fn roll_byte(&mut self, b: u8)

Roll over one byte

fn digest(&self) -> u64

Return current rolling sum digest

fn reset(&mut self)

Resets the internal state

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

Roll over a slice of bytes

fn find_chunk_edge_cond<F>(
    &mut self,
    buf: &[u8],
    cond: F
) -> Option<(usize, Self::Digest)> where
    F: Fn(&Self) -> bool, 

Find the end of the chunk.