Function encode_handle

nodedb/src/engine/kv/slab.rs:311–315

(tier_idx: u8, slot_idx: u32)

const SLOT_MASK: u32 = (1 << 28) - 1;

fn encode_handle(tier_idx: u8, slot_idx: u32) -> u32 {
    debug_assert!(tier_idx < 8);
    debug_assert!(slot_idx <= SLOT_MASK);
    ((tier_idx as u32) << TIER_SHIFT) | slot_idx
}

fn decode_handle(handle: u32) -> (u8, u32) {
    let tier_idx = ((handle >> TIER_SHIFT) & 0x7) as u8;