buffered-reader: Provide a mechanism to rewind a BufferedReaderDup

  - New method BufferedReaderDup::rewind.

1 files changed, 5 insertions, 0 deletions

diff --git a/buffered-reader/src/dup.rs b/buffered-reader/src/dup.rs
index c06721cc..ae9ce217 100644
--- a/buffered-reader/src/dup.rs
+++ b/buffered-reader/src/dup.rs
@@ -54,6 +54,11 @@ impl<'a, C> BufferedReaderDup<'a, C> {
     pub fn total_out(&self) -> usize {
         return self.cursor;
     }
+
+    /// Resets the cursor to the beginning of the stream.
+    pub fn rewind(&mut self) {
+        self.cursor = 0;
+    }
 }
 
 impl<'a, C> io::Read for BufferedReaderDup<'a, C> {