Struct BzEncoder

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

A bzip2 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> BzEncoder<W>

where W: AsyncWrite,

pub fn new(inner: W) -> BzEncoder<W>

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) -> BzEncoder<W>

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

impl<W> BzEncoder<W>

pub fn get_ref(&self) -> &W

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

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

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 BzEncoder<W>>) -> Pin<&mut W>

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

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> AsyncBufRead for BzEncoder<W>

where W: AsyncBufRead,

fn poll_fill_buf( self: Pin<&mut BzEncoder<W>>, cx: &mut Context<'_>, ) -> Poll<Result<&[u8], Error>>

Attempts to return the contents of the internal buffer, filling it with more data from the inner reader if it is empty.

fn consume(self: Pin<&mut BzEncoder<W>>, amt: usize)

Tells this buffer that amt bytes have been consumed from the buffer, so they should no longer be returned in calls to poll_read.

impl<W> AsyncRead for BzEncoder<W>

where W: AsyncRead,

fn poll_read( self: Pin<&mut BzEncoder<W>>, cx: &mut Context<'_>, buf: &mut ReadBuf<'_>, ) -> Poll<Result<(), Error>>

Attempts to read from the AsyncRead into buf.

impl<W> AsyncWrite for BzEncoder<W>

where W: AsyncWrite,

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

Attempt to write bytes from buf into the object.

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

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

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

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 for BzEncoder<W>

where W: Debug,

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

Formats the value using the given formatter.

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

where <PinnedFieldsOfHelperStruct<__Origin<'__pin, W>> as PinnedFieldsOfHelperTrait>::Actual: Unpin,