Struct ZstdEncoder 

pub struct ZstdEncoder<W> { /* private fields */ }

Available on crate feature zstd only.

A zstd encoder, or compressor.

This structure implements an AsyncWrite interface and will take in uncompressed data and write it compressed to an underlying stream.

Implementations

impl<W: AsyncWrite> ZstdEncoder<W>

pub fn new(inner: W) -> Self

Available on crate feature tokio only.

Creates a new encoder which will take in uncompressed data and write it compressed to the given stream.

pub fn with_quality(inner: W, level: Level) -> Self

Available on crate feature tokio only.

Creates a new encoder which will take in uncompressed data and write it compressed to the given stream.

pub fn get_ref(&self) -> &W

Available on crate feature tokio only.

Acquires a reference to the underlying writer that this encoder is wrapping.

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

Available on crate feature tokio only.

Acquires a mutable reference to the underlying writer that this encoder is wrapping.

Note that care must be taken to avoid tampering with the state of the writer which may otherwise confuse this encoder.

pub fn get_pin_mut(self: Pin<&mut Self>) -> Pin<&mut W>

Available on crate feature tokio only.

Acquires a pinned mutable reference to the underlying writer that this encoder is wrapping.

Note that care must be taken to avoid tampering with the state of the writer which may otherwise confuse this encoder.

pub fn into_inner(self) -> W

Available on crate feature tokio only.

Consumes this encoder returning the underlying writer.

Note that this may discard internal state of this encoder, so care should be taken to avoid losing resources when this is called.

Trait Implementations

impl<W: AsyncWrite> AsyncWrite for ZstdEncoder<W>

Available on crate feature tokio only.

fn poll_write( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &[u8], ) -> Poll<Result<usize>>

Attempt to write bytes from buf into the object.

fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<()>>

Attempts to flush the object, ensuring that any buffered data reach their destination.

fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<()>>

Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down.

fn poll_write_vectored( self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &[IoSlice<'_>], ) -> Poll<Result<usize, Error>>

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

fn is_write_vectored(&self) -> bool

Determines if this writer has an efficient poll_write_vectored implementation.

impl<W: Debug> Debug for ZstdEncoder<W>

Available on crate feature tokio only.

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

Formats the value using the given formatter.

impl<'__pin, W> Unpin for ZstdEncoder<W>

where PinnedFieldsOf<__Origin<'__pin, W>>: Unpin,

Available on crate feature tokio only.