Struct flate2::deflate::read::DeflateDecoder[][src]

pub struct DeflateDecoder<R> {
    inner: DeflateDecoder<BufReader<R>>,
}
Expand description

A DEFLATE decoder, or decompressor.

This structure implements a Read interface and takes a stream of compressed data as input, providing the decompressed data when read from.

Examples

use std::io::prelude::*;
use std::io;
use flate2::read::DeflateDecoder;

// Uncompresses a Deflate Encoded vector of bytes and returns a string or error
// Here &[u8] implements Read
fn decode_reader(bytes: Vec<u8>) -> io::Result<String> {
   let mut deflater = DeflateDecoder::new(&bytes[..]);
   let mut s = String::new();
   deflater.read_to_string(&mut s)?;
   Ok(s)
}

Fields

inner: DeflateDecoder<BufReader<R>>

Implementations

Creates a new decoder which will decompress data read from the given stream.

Same as new, but the intermediate buffer for data is specified.

Note that the capacity of the intermediate buffer is never increased, and it is recommended for it to be large.

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.

Note that there may be currently buffered data when this function is called, and in that case the buffered data is discarded.

Acquires a reference to the underlying stream

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.

Consumes this decoder, returning the underlying reader.

Note that there may be buffered bytes which are not re-acquired as part of this transition. It’s recommended to only call this function after EOF has been reached.

Returns the number of bytes that the decompressor has consumed.

Note that this will likely be smaller than what the decompressor actually read from the underlying stream due to buffering.

Returns the number of bytes that the decompressor has produced.

Trait Implementations

Formats the value using the given formatter. Read more

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

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

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

Determines if this Reader has an efficient read_vectored implementation. Read more

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

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

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

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

Read the exact number of bytes required to fill buf. Read more

Creates a “by reference” adapter for this instance of Read. Read more

Transforms this Read instance to an Iterator over its bytes. Read more

Creates an adapter which will chain this stream with another. Read more

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

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

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

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

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

Determines if this Writer has an efficient write_vectored implementation. Read more

Attempts to write an entire buffer into this writer. Read more

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

Attempts to write multiple buffers into this writer. Read more

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

Creates a “by reference” adapter for this instance of Write. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.