Function name_prefix

nodedb/src/control/array_sync/snapshot_store.rs:44–51

Build the name-prefix used for range scans: `[name_len: u8][name bytes]`.

(array: &str)

/// Build the name-prefix used for range scans: `[name_len: u8][name bytes]`.
fn name_prefix(array: &str) -> Option<Vec<u8>> {
    let name_bytes = array.as_bytes();
    let name_len = u8::try_from(name_bytes.len()).ok()?;
    let mut prefix = Vec::with_capacity(1 + name_bytes.len());
    prefix.push(name_len);
    prefix.extend_from_slice(name_bytes);
    Some(prefix)
}

/// Parse the HLC from the tail of a composite key given the prefix length.
fn hlc_from_key(key: &[u8], prefix_len: usize) -> Option<Hlc> {