Struct DigestVerifier 

pub struct DigestVerifier { /* private fields */ }

Checks a package as it is read, so a package too large to hold in memory is still checked.

An installer feeds every chunk it writes through this and calls DigestVerifier::finish before committing; nothing installs a package whose bytes were never seen in full.

Implementations

impl DigestVerifier

pub fn new(expected: PackageDigest) -> Result<Self, AppUpdateError>

A verifier for expected, or an error when the digest is malformed.

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

Feeds the next chunk of the package.

pub fn len(&self) -> u64

How many bytes have been read so far.

pub fn is_empty(&self) -> bool

Whether nothing has been read yet.

pub fn finish(self) -> Result<(), AppUpdateError>

Checks what was read against what was promised.