Function snapshot_key

nodedb/src/control/array_sync/snapshot_store.rs:33–41

Build the composite key: `[name_len: u8][name bytes][hlc: 18 bytes]`.

(array: &str, hlc: Hlc)

/// Build the composite key: `[name_len: u8][name bytes][hlc: 18 bytes]`.
fn snapshot_key(array: &str, hlc: Hlc) -> Option<Vec<u8>> {
    let name_bytes = array.as_bytes();
    let name_len = u8::try_from(name_bytes.len()).ok()?;
    let mut key = Vec::with_capacity(1 + name_bytes.len() + 18);
    key.push(name_len);
    key.extend_from_slice(name_bytes);
    key.extend_from_slice(&hlc.to_bytes());
    Some(key)
}

/// Build the name-prefix used for range scans: `[name_len: u8][name bytes]`.
fn name_prefix(array: &str) -> Option<Vec<u8>> {