Advanced Deep-Dive

Zero-Copy State Management

Traditional Solana programs deserialize account data on every instruction — copying bytes into Rust structs. DayKing uses zero_copy accounts, which read data directly from the account's memory-mapped region without copying.

// Copies all bytes into struct
let pool = Pool::try_deserialize(
  &mut &account.data.borrow()[..]
)?;
// ~500ns per deserialize

// Direct memory-mapped access
let pool = AccountLoader::<Pool>::try_from(
  &account
)?.load()?;
// ~50ns — 10x faster

At 1M TPS, this 10x improvement in deserialization is the difference between keeping up with Firedancer and falling behind.

Sharded Accounting

Instead of storing all protocol state in a single account (which creates contention under high load), DayKing shards state across deterministic PDAs. Each pool, position, and vault lives in its own account — enabling parallel execution across Solana's runtime.

// Each pool is a separate PDA — no contention
seeds = [b"pool", token_a.key().as_ref(), token_b.key().as_ref()]

// Each LP position is separate — parallel writes
seeds = [b"position", pool.key().as_ref(), owner.key().as_ref()]

// Fee accounting per-pool, not global
seeds = [b"fees", pool.key().as_ref()]

Tick-Based Concentrated Liquidity

DayKing Nova uses a tick-based architecture (like Uniswap V3) instead of bin-based (like Meteora). The price range is divided into discrete ticks, and LPs provide liquidity within specific tick ranges.

CPI Composability

All DayKing programs communicate via Cross-Program Invocations (CPI). Any external protocol can call into DayKing's swap, liquidity, or vault programs — and DayKing's programs can call each other atomically in a single transaction.

// Example: Genesis launches a token, then auto-creates a pool
// All in one atomic transaction via CPI

// 1. Genesis: Create token + distribute
genesis::create_token(ctx, params)?;

// 2. CPI into Reactor: Create CPMM pool
dayking_reactor::cpi::initialize_pool(cpi_ctx, pool_params)?;

// 3. CPI into Points: Award launch points
dayking_points::cpi::award_points(points_ctx, fee_amount)?;

TukTuk Automation Engine

TukTuk is DayKing's on-chain automation layer — similar to Chainlink Keepers but native to Solana. It handles scheduled tasks like auto-rebalancing LP positions, processing vault settlements, expiring campaigns, and distributing rewards.

Transaction Flow: Swap Example