Struct libflate::gzip::MultiDecoder

pub struct MultiDecoder<R> {
    header: Header,
    decoder: Result<Decoder<R>, R>,
}

A decoder that decodes all members in a GZIP stream.

Fields

header: Header

decoder: Result<Decoder<R>, R>

Implementations

impl<R> MultiDecoder<R> where
    R: Read, 

pub fn new(inner: R) -> Result<Self>

Makes a new decoder instance.

inner is to be decoded GZIP stream.

Examples

use std::io::Read;
use libflate::gzip::MultiDecoder;

let mut encoded_data = Vec::new();

// Add a member (a GZIP binary that represents "Hello ")
encoded_data.extend(&[31, 139, 8, 0, 51, 206, 75, 90, 0, 3, 5, 128, 49, 9, 0, 0, 0, 194, 170, 24,
                      199, 34, 126, 3, 251, 127, 163, 131, 71, 192, 252, 45, 234, 6, 0, 0, 0][..]);

// Add another member (a GZIP binary that represents "World!")
encoded_data.extend(&[31, 139, 8, 0, 227, 207, 75, 90, 0, 3, 5, 128, 49, 9, 0, 0, 0, 194, 178, 152,
                      202, 2, 158, 130, 96, 255, 99, 120, 111, 4, 222, 157, 40, 118, 6, 0, 0, 0][..]);

let mut decoder = MultiDecoder::new(&encoded_data[..]).unwrap();
let mut buf = Vec::new();
decoder.read_to_end(&mut buf).unwrap();

assert_eq!(buf, b"Hello World!");

pub fn header(&self) -> &Header

Returns the header of the current member in the GZIP stream.

Examples

use libflate::gzip::{MultiDecoder, Os};

let encoded_data = [31, 139, 8, 0, 123, 0, 0, 0, 0, 3, 1, 12, 0, 243, 255,
                    72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33,
                    163, 28, 41, 28, 12, 0, 0, 0];

let decoder = MultiDecoder::new(&encoded_data[..]).unwrap();
assert_eq!(decoder.header().os(), Os::Unix);

pub fn as_inner_ref(&self) -> &R

Returns the immutable reference to the inner stream.

pub fn as_inner_mut(&mut self) -> &mut R

Returns the mutable reference to the inner stream.

pub fn into_inner(self) -> R

Unwraps this MultiDecoder, returning the underlying reader.

Examples

use std::io::Cursor;
use libflate::gzip::MultiDecoder;

let encoded_data = [31, 139, 8, 0, 123, 0, 0, 0, 0, 3, 1, 12, 0, 243, 255,
                    72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33,
                    163, 28, 41, 28, 12, 0, 0, 0];

let decoder = MultiDecoder::new(Cursor::new(&encoded_data[..])).unwrap();
assert_eq!(decoder.into_inner().into_inner(), &encoded_data[..]);

Trait Implementations

impl<R: Debug> Debug for MultiDecoder<R>

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

Formats the value using the given formatter.

impl<R> Read for MultiDecoder<R> where
    R: Read, 

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.

fn is_read_vectored(&self) -> bool

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

Determines if this Reader has an efficient read_vectored implementation.

fn read_to_end(&mut self, buf: &mut Vec<u8, Global>) -> 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 read_buf(&mut self, buf: &mut ReadBuf<'_>) -> Result<(), Error>

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

Pull some bytes from this source into the specified buffer.

fn read_buf_exact(&mut self, buf: &mut ReadBuf<'_>) -> Result<(), Error>

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

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 adapter which will chain this stream with another.

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

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