Trait smol::io::AsyncSeekExt

pub trait AsyncSeekExt: AsyncSeek {
    fn seek(&mut self, pos: SeekFrom) -> SeekFuture<Self>ⓘ
Important traits for SeekFuture<'_, T>
impl<'_, T> Future for SeekFuture<'_, T> where
    T: Unpin + AsyncSeek + ?Sized,     type Output = Result<u64, Error>;
    where
        Self: Unpin,
    { ... }
}

Extension trait for AsyncSeek.

Provided methods

fn seek(&mut self, pos: SeekFrom) -> SeekFuture<Self>ⓘ

Important traits for SeekFuture<'_, T>

impl<'_, T> Future for SeekFuture<'_, T> where
    T: Unpin + AsyncSeek + ?Sized,  type Output = Result<u64, Error>;

where
    Self: Unpin, 

Seeks to a new position in a byte stream.

Returns the new position in the byte stream.

A seek beyond the end of stream is allowed, but behavior is defined by the implementation.

Examples

use futures_lite::*;

let mut cursor = io::Cursor::new("hello");

// Move the cursor to the end.
cursor.seek(io::SeekFrom::End(0)).await?;

// Check the current position.
assert_eq!(cursor.seek(io::SeekFrom::Current(0)).await?, 5);

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Implementors

impl<S> AsyncSeekExt for S where
    S: AsyncSeek + ?Sized, 

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