Add AsyncSeekExt::stream_position

rust-lang · Mar 26, 2021 · 9c5f4ba · 9c5f4ba
1 parent dddfc35
commit 9c5f4ba
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/futures-util/src/io/mod.rs b/futures-util/src/io/mod.rs
@@ -601,6 +601,17 @@ pub trait AsyncSeekExt: AsyncSeek {
     {
         assert_future::<Result<u64>, _>(Seek::new(self, pos))
     }
+
+    /// Creates a future which will returns the current seek position from the
+    /// start of the stream.
+    ///
+    /// This is equivalent to `self.seek(SeekFrom::Current(0))`.
+    fn stream_position(&mut self) -> Seek<'_, Self>
+    where
+        Self: Unpin,
+    {
+        self.seek(SeekFrom::Current(0))
+    }
 }
 
 impl<S: AsyncSeek + ?Sized> AsyncSeekExt for S {}