Struct DownloadInstanceWriter

pub struct DownloadInstanceWriter {
    pub instance: Ref<DownloadInstance>,
    pub total_length: Option<u64>,
    pub progress: u64,
}

A writer for a DownloadInstance.

Fields

instance: Ref<DownloadInstance>

total_length: Option<u64>

The expected length of the download.

progress: u64

The current progress of the download.

Implementations

impl DownloadInstanceWriter

pub fn new(instance: Ref<DownloadInstance>, total_length: Option<u64>) -> Self

Trait Implementations

impl Write for DownloadInstanceWriter

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

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

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 #69941)

Determines if this Writer has an efficient write_vectored implementation.

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

Attempts to write an entire buffer into this writer.

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

🔬This is a nightly-only experimental API. (write_all_vectored #70436)

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, fmt: 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.