Trait futures_util::io::AsyncSeekExt

source · [−]
pub trait AsyncSeekExt: AsyncSeek {
    fn seek(&mut self, pos: SeekFrom) -> Seek<'_, Self>ⓘNotable traits for Seek<'_, S>impl<S: AsyncSeek + ?Sized + Unpin> Future for Seek<'_, S>    type Output = Result<u64>;
    where
        Self: Unpin,
    { ... }
    fn stream_position(&mut self) -> Seek<'_, Self>ⓘNotable traits for Seek<'_, S>impl<S: AsyncSeek + ?Sized + Unpin> Future for Seek<'_, S>    type Output = Result<u64>;
    where
        Self: Unpin,
    { ... }
}
Expand description

An extension trait which adds utility methods to AsyncSeek types.

Provided methods

Creates a future which will seek an IO object, and then yield the new position in the object and the object itself.

In the case of an error the buffer and the object will be discarded, with the error yielded.

Creates a future which will return the current seek position from the start of the stream.

This is equivalent to self.seek(SeekFrom::Current(0)).

Implementors