Struct Compressor 

pub struct Compressor<W: Write>(/* private fields */);

An adapter to compress a stream.

Implementations

impl<W: Write> Compressor<W>

pub fn new( writer: W, method: CompressionMethod, level: Option<i32>, ) -> Result<Self>

Creates a new Compressor.

The level parameter signification depends on the method used. None always means “default level” and is always supported.

Compression methods unsupported by this crate will cause an error.

pub fn compression_method(&self) -> CompressionMethod

Returns the compression method used by this compressor

pub fn get_mut(&mut self) -> &mut W

Gets a mutable reference to the underlying writer.

It is inadvisable to directly write to the underlying writer.

pub fn do_finish(&mut self) -> Result<()>

Attempts to finish the stream.

You must finish the stream when you’re done writing.

pub fn finish(self) -> Result<W>

Finishes the stream and get the writer back.

You must finish the stream when you’re done writing.

Trait Implementations

impl<W: Write> Write for Compressor<W>

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

Writes a buffer into this writer, returning how many bytes were written.

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

Attempts to write an entire buffer into this writer.

fn flush(&mut self) -> Result<()>

Flushes this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

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

fn is_write_vectored(&self) -> bool

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

Determines if this Writer has an efficient write_vectored implementation.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

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

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

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

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

where Self: Sized,

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