clawhdf5-remote tests: open + list and a dataset read counted apart

The per-file report now separates a tree view (open, every group's entries, every dataset's shape and type) from reading the largest dataset under 64 MiB, and checks the budget the design's testing section asks for: listing the IMERG file (file A of docs/design/range-reads.md section 2) takes at most 3 requests when CLAWHDF5_REMOTE_CORPUS includes it. The test server now counts a response's bytes before sending it: a client could read a body and reset the counters before the server thread had added it, so the counts of the next file were occasionally too high. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
2026-09-26 17:26:57 -05:00
parent c513f7e6d7
commit ebe51f8e97
3 changed files with 69 additions and 37 deletions
@@ -320,9 +320,11 @@ fn serve(conn: TcpStream, s: &Shared) -> std::io::Result<()> {
        };
        let mut response = head.into_bytes();
        response.extend_from_slice(body);
+        // Counted before the client can have the bytes, so a test that
+        // resets the counters after a read never sees them arrive late.
+        s.bytes.fetch_add(body.len() as u64, Ordering::SeqCst);
        out.write_all(&response)?;
        out.flush()?;
-        s.bytes.fetch_add(body.len() as u64, Ordering::SeqCst);
        if truncate || close {
            let _ = out.shutdown(std::net::Shutdown::Both);
            return Ok(());