Struct flate2::bufread::ZlibDecoder
source · pub struct ZlibDecoder<R> { /* private fields */ }
Expand description
A ZLIB decoder, or decompressor.
This structure consumes a BufRead
interface, reading compressed data
from the underlying reader, and emitting uncompressed data.
Examples
use std::io::prelude::*;
use std::io;
use flate2::bufread::ZlibDecoder;
// Uncompresses a Zlib Encoded vector of bytes and returns a string or error
// Here &[u8] implements BufRead
fn decode_bufreader(bytes: Vec<u8>) -> io::Result<String> {
let mut z = ZlibDecoder::new(&bytes[..]);
let mut s = String::new();
z.read_to_string(&mut s)?;
Ok(s)
}
Implementations§
source§impl<R: BufRead> ZlibDecoder<R>
impl<R: BufRead> ZlibDecoder<R>
sourcepub fn new(r: R) -> ZlibDecoder<R> ⓘ
pub fn new(r: R) -> ZlibDecoder<R> ⓘ
Creates a new decoder which will decompress data read from the given stream.
source§impl<R> ZlibDecoder<R>
impl<R> ZlibDecoder<R>
sourcepub fn reset(&mut self, r: R) -> R
pub fn reset(&mut self, r: R) -> R
Resets the state of this decoder entirely, swapping out the input stream for another.
This will reset the internal state of this decoder and replace the
input stream with the one provided, returning the previous input
stream. Future data read from this decoder will be the decompressed
version of r
’s data.
sourcepub fn get_mut(&mut self) -> &mut R
pub fn get_mut(&mut self) -> &mut R
Acquires a mutable reference to the underlying stream
Note that mutation of the stream may result in surprising results if this encoder is continued to be used.
sourcepub fn into_inner(self) -> R
pub fn into_inner(self) -> R
Consumes this decoder, returning the underlying reader.
Trait Implementations§
source§impl<R: Debug> Debug for ZlibDecoder<R>
impl<R: Debug> Debug for ZlibDecoder<R>
source§impl<R: BufRead> Read for ZlibDecoder<R>
impl<R: BufRead> Read for ZlibDecoder<R>
source§fn read(&mut self, into: &mut [u8]) -> Result<usize>
fn read(&mut self, into: &mut [u8]) -> Result<usize>
1.36.0 · source§fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
read
, except that it reads into a slice of buffers. Read moresource§fn is_read_vectored(&self) -> bool
fn is_read_vectored(&self) -> bool
can_vector
)1.0.0 · source§fn read_to_end(&mut self, buf: &mut Vec<u8, Global>) -> Result<usize, Error>
fn read_to_end(&mut self, buf: &mut Vec<u8, Global>) -> Result<usize, Error>
buf
. Read more1.0.0 · source§fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
buf
. Read more1.6.0 · source§fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
buf
. Read moresource§fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
read_buf
)source§fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
read_buf
)cursor
. Read more1.0.0 · source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere Self: Sized,
Read
. Read moresource§impl<R: BufRead + Write> Write for ZlibDecoder<R>
impl<R: BufRead + Write> Write for ZlibDecoder<R>
source§fn write(&mut self, buf: &[u8]) -> Result<usize>
fn write(&mut self, buf: &[u8]) -> Result<usize>
source§fn flush(&mut self) -> Result<()>
fn flush(&mut self) -> Result<()>
source§fn is_write_vectored(&self) -> bool
fn is_write_vectored(&self) -> bool
can_vector
)1.0.0 · source§fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
source§fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>
fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>
write_all_vectored
)