Method scan

nodedb/src/engine/kv/scan.rs:45–54

Cursor-based scan: iterate entries starting from `cursor_idx`. Returns `(entries, next_cursor)`. `entries` contains up to `count` non-expired `(key, value)` pairs. `next_cursor` is `0` if the scan is complete, otherwise the next slot index to resume from. Scans the primary table first, then the rehash source (if active). Optionally filters keys by a glob-like prefix pattern.

(
        &self,
        cursor_idx: usize,
        count: usize,
        now_ms: u64,
        match_pattern: Option<&str>,
    )

    /// Scans the primary table first, then the rehash source (if active).
    /// Optionally filters keys by a glob-like prefix pattern.
    pub fn scan(
        &self,
        cursor_idx: usize,
        count: usize,
        now_ms: u64,
        match_pattern: Option<&str>,
    ) -> ScanBatch<'_> {
        let (rows, next) = self.scan_with_surrogate(cursor_idx, count, now_ms, match_pattern);
        (rows.into_iter().map(|(k, v, _)| (k, v)).collect(), next)
    }

    /// Like [`scan`], but surfaces each row's surrogate alongside its
    /// key/value so a caller can filter by clone snapshot-isolation