fn merge_compact_chain_len()

in src/storage/seg/src/segments/segments.rs [658:691]

• 32 lines of code
• 5 McCabe index (conditional complexity)

    fn merge_compact_chain_len(&mut self, start: NonZeroU32) -> usize {
        let mut len = 0;
        let mut id = start;
        let max = self.evict.max_merge();
        let mut occupied = 0;
        let seg_size = self.segment_size();

        while len < max {
            if let Ok(seg) = self.get_mut(id) {
                if seg.can_evict() {
                    occupied += seg.live_bytes();
                    if occupied > seg_size {
                        break;
                    }
                    len += 1;
                    match seg.next_seg() {
                        Some(i) => {
                            id = i;
                        }
                        None => {
                            break;
                        }
                    }
                } else {
                    break;
                }
            } else {
                warn!("invalid segment id: {}", id);
                break;
            }
        }

        len
    }