simplify BufList::chunks_vectored (#14)

Author: sunshowers

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 
 This project adheres to [Semantic Versioning](https://semver.org).
 
+## [1.1.2] - 2025-10-02
+
+Simplify `Buf::chunks_vectored` implementations for `BufList` and `Cursor<T>`.
+
 ## [1.1.1] - 2025-10-01
 
 ### Added
@@ -74,6 +78,7 @@ This project adheres to [Semantic Versioning](https://semver.org).
 
 - Initial release.
 
+[1.1.2]: https://github.com/sunshowers-code/buf-list/releases/tag/1.1.2
 [1.1.1]: https://github.com/sunshowers-code/buf-list/releases/tag/1.1.1
 [1.1.0]: https://github.com/sunshowers-code/buf-list/releases/tag/1.1.0
 [1.0.3]: https://github.com/sunshowers-code/buf-list/releases/tag/1.0.3

src/cursor/mod.rs

@@ -231,9 +231,8 @@ impl<T: AsRef<BufList>> Buf for Cursor<T> {
         let to_fill = (iovs.len()).min(list.num_chunks() - current_chunk);
         for (i, iov) in iovs.iter_mut().enumerate().take(to_fill).skip(1) {
             *iov = IoSlice::new(
-                &list
-                    .get_chunk(current_chunk + i)
-                    .expect("chunk is in range")[..],
+                list.get_chunk(current_chunk + i)
+                    .expect("chunk is in range"),
             );
         }
 

src/imp.rs

@@ -217,17 +217,12 @@ impl Buf for BufList {
             return 0;
         }
 
-        // Loop over the buffers in the replay buffer list, and try to fill as
-        // many iovecs as we can from each buffer.
-        let mut filled = 0;
-        for buf in &self.bufs {
-            filled += buf.chunks_vectored(&mut iovs[filled..]);
-            if filled == iovs.len() {
-                return filled;
-            }
+        let to_fill = (iovs.len()).min(self.bufs.len());
+        for (i, iov) in iovs.iter_mut().enumerate().take(to_fill) {
+            *iov = IoSlice::new(&self.bufs[i]);
         }
 
-        filled
+        to_fill
     }
 
     fn advance(&mut self, mut amt: usize) {