Struct CursorWriterFactory

pub struct CursorWriterFactory<T>(/* private fields */);

A CusorWriterFactory creates AsyncWrite objects from a std::io::Cursor, allowing downloads to in-memory buffers. It is specialized for Vec (which grows indefinitely) and &mut [u8] (which has a fixed maximum size)

Implementations

impl CursorWriterFactory<Vec<u8>>

pub fn new() -> Self

pub fn into_inner(self) -> Vec<u8>

Consume the factory, returning the vector into which the data was read

impl<'a> CursorWriterFactory<&'a mut [u8]>

pub fn for_buf(inner: &'a mut [u8]) -> Self

pub fn size(self) -> usize

Return the size of the data written to the buffer. This value should be used to slice the resulting data from the buffer.

Trait Implementations

impl AsyncWriterFactory for CursorWriterFactory<&mut [u8]>

fn get_writer<'a, 'async_trait>( &'a mut self, ) -> Pin<Box<dyn Future<Output = Result<Box<dyn AsyncWrite + Unpin + 'a>>> + Send + 'async_trait>>

where Self: 'async_trait, 'a: 'async_trait,

Get a fresh AsyncWrite object, positioned at the point where downloaded data should be written.

impl AsyncWriterFactory for CursorWriterFactory<Vec<u8>>

fn get_writer<'a, 'async_trait>( &'a mut self, ) -> Pin<Box<dyn Future<Output = Result<Box<dyn AsyncWrite + Unpin + 'a>>> + Send + 'async_trait>>

where Self: 'async_trait, 'a: 'async_trait,

Get a fresh AsyncWrite object, positioned at the point where downloaded data should be written.

impl Default for CursorWriterFactory<Vec<u8>>

fn default() -> Self

Returns the “default value” for a type.