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io: Add convenience method AsyncSeekExt::rewind. #4107

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Merged
merged 3 commits into from
Sep 14, 2021
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io: Add convenience method AsyncSeekExt::rewind. #4107

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c73e567
Implement the rewind method as part of the AsyncSeekExt trait.
tvercruyssen Sep 13, 2021
4690730
Add test for the rewind method
tvercruyssen Sep 13, 2021
bd19439
Formatting using rustfmt
tvercruyssen Sep 13, 2021
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Implement the rewind method as part of the AsyncSeekExt trait.
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@tvercruyssen
tvercruyssen committed Sep 13, 2021
commit c73e5679cfe8dc24156f69cd0765bc3b815b5e0d
10 changes: 10 additions & 0 deletions tokio/src/io/util/async_seek_ext.rs
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Expand Up @@ -67,6 +67,16 @@ cfg_io_util! {
seek(self, pos)
}

/// Creates a future which will rewind to the beginning of the stream.
///
/// This is convenience method, equivalent to to `self.seek(SeekFrom::Start(0))`.
fn rewind(&mut self) -> Seek<'_, Self>
where
Self: Unpin,
{
self.seek(SeekFrom::Start(0))
}

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