Method fill_buf

arrow-csv/src/reader/mod.rs:2635–2640

(&mut self)

    impl<R: BufRead> BufRead for InstrumentedRead<R> {
        fn fill_buf(&mut self) -> std::io::Result<&[u8]> {
            self.fill_count += 1;
            let buf = self.r.fill_buf()?;
            self.fill_sizes.push(buf.len());
            Ok(buf)
        }

        fn consume(&mut self, amt: usize) {
            self.r.consume(amt)