Struct flate2::zlib::bufread::ZlibEncoder[][src]

pub struct ZlibEncoder<R> {
    obj: R,
    data: Compress,
}
Expand description

A ZLIB encoder, or compressor.

This structure implements a BufRead interface and will read uncompressed data from an underlying stream and emit a stream of compressed data.

Examples

use std::io::prelude::*;
use flate2::Compression;
use flate2::bufread::ZlibEncoder;
use std::fs::File;
use std::io::BufReader;

// Use a buffered file to compress contents into a Vec<u8>

let f = File::open("examples/hello_world.txt")?;
let b = BufReader::new(f);
let mut z = ZlibEncoder::new(b, Compression::fast());
let mut buffer = Vec::new();
z.read_to_end(&mut buffer)?;

Fields

obj: Rdata: Compress

Implementations

Creates a new encoder which will read uncompressed data from the given stream and emit the compressed stream.

Resets the state of this encoder entirely, swapping out the input stream for another.

This function will reset the internal state of this encoder and replace the input stream with the one provided, returning the previous input stream. Future data read from this encoder will be the compressed version of r’s data.

Acquires a reference to the underlying reader

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 encoder, returning the underlying reader.

Returns the number of bytes that have been read into this compressor.

Note that not all bytes read from the underlying object may be accounted for, there may still be some active buffering.

Returns the number of bytes that the compressor has produced.

Note that not all bytes may have been read yet, some may still be buffered.

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.