Uniswap V4 PoolManager

The Uniswap V4 PoolManager unlock pattern requires callers to trigger an unlock and execute operations inside an unlockCallback, allowing the contract to reconcile delta accounting before settling pool state.

To initialize a pool and manage liquidity in Uniswap V4, you call Initialize Pool to set parameters, then use Modify Liquidity operations to adjust pool state while tracking delta accounting.

Hooks integrate with Uniswap V4 pool operations by executing custom logic through callbacks triggered during core operations like Swap and Modify Liquidity, coordinating directly with the PoolManager state.

Delta accounting in a Uniswap V4 swap tracks net changes in token balances throughout the unlockCallback flow, ensuring all pool modifications settle correctly before the transaction completes.

Yes, Uniswap V4 PoolManager uses ERC6909 mint and burn flows to represent liquidity positions, allowing users to mint tokens when adding liquidity and burn them upon withdrawal.

Auditing a Uniswap V4 PoolManager deployment requires verifying the unlockCallback flows, validating delta accounting reconciliation, and checking hook integration paths for correct pool state management.