Struct librsync::Delta

pub struct Delta<R> { /* fields omitted */ }

A struct to generate a delta between two files.

This type takes two Read streams, one for the signature of the base file and one for the new file. It then provides another Read stream from which get the result.

Methods

impl<R: Read> Delta<BufReader<R>>

pub fn new<S: Read + ?Sized>(new: R, base_sig: &mut S) -> Result<Self>

Creates a new delta stream.

This constructor takes two Read streams for the new file (new parameter) and for the signatures of the base file (base_sig parameter). It produces a delta stream from which read the resulting delta file.

impl<R: BufRead> Delta<R>

pub fn with_buf_read<S: Read + ?Sized>(new: R, base_sig: &mut S) -> Result<Self>

Creates a new delta stream by using a BufRead as new file.

This constructor specializes the new constructor by taking a BufRead instance as new parameter. Prefer this constructor if you already have a BufRead as input stream, since it avoids wrapping the input stream into another BufRead instance. See new constructor for more details on the parameters.

pub fn into_inner(self) -> R

Unwraps this stream, returning the underlying new file stream.

Trait Implementations

impl<R: BufRead> Read for Delta<R>

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

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

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

Like read, except that it reads into a slice of buffers.

unsafe fn initializer(&self) -> Initializer

🔬 This is a nightly-only experimental API. (read_initializer)

Determines if this Reader can work with buffers of uninitialized memory.

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>

Read all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>

Read all bytes until EOF in this source, appending them to buf.

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

Read the exact number of bytes required to fill buf.

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

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

fn bytes(self) -> Bytes<Self>

Transforms this Read instance to an [Iterator] over its bytes.

fn chain<R>(self, next: R) -> Chain<Self, R> where
    R: Read, 

Creates an adaptor which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

Creates an adaptor which will read at most limit bytes from it.