Struct opendal::Writer

pub struct Writer { /* private fields */ }

Writer is designed to write data into given path in an asynchronous manner.

Notes

Writer is designed for appending multiple blocks which could lead to much requests. If only want to send all data in single chunk, please use Operator::write instead.

Implementations

impl Writer

pub async fn append(&mut self, bs: impl Into<Bytes>) -> Result<()>

Append data into writer.

It is highly recommended to align the length of the input bytes into blocks of 4MiB (except the last block) for better performance and compatibility.

pub async fn close(&mut self) -> Result<()>

Close the writer and make sure all data have been stored.

Trait Implementations

impl AsyncWrite for Writer

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

Writer makes sure that every write is flushed.

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

Attempt to close the object.

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

Attempt to write bytes from bufs into the object using vectored IO operations.