Struct iocutil::hasher::Hasher

pub struct Hasher { /* fields omitted */ }

Hash calculator

Methods

impl Hasher

pub fn new() -> Self

create new hasher

pub fn digests(&mut self) -> ContentHash

get hash digests

Example

use iocutil::prelude::*;

let mut hasher = Hasher::default();
let mut f = std::fs::File::open("./Cargo.toml").expect("failed to open Cargo.toml");
std::io::copy(&mut f, &mut hasher).unwrap();
println!("{:?}", hasher.digests());

Trait Implementations

impl Default for Hasher

fn default() -> Self

Returns the "default value" for a type.

impl Write for Hasher

fn write(&mut self, buf: &[u8]) -> Result<usize, Error>

Write a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<(), Error>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Write.