utxohandler

func (*UTXOHandler) ApplyState ¶

func (ut *UTXOHandler) ApplyState(txn *badger.Txn, txs objs.TxVec, height uint32) ([]byte, error)

ApplyState will update the state trie with the given proposal data. Consumed UTXOs will be deleted from the trie. New UTXOs will be added to the trie. Consumed deposits will be added to the trie.

func (*UTXOHandler) Contains ¶

func (ut *UTXOHandler) Contains(txn *badger.Txn, utxoID []byte) (bool, error)

Contains returns if a UTXO is stored in storage.

func (*UTXOHandler) FinalizeSnapShotRoot ¶

func (ut *UTXOHandler) FinalizeSnapShotRoot(txn *badger.Txn, root []byte, height uint32) error

func (*UTXOHandler) Get ¶

func (ut *UTXOHandler) Get(txn *badger.Txn, utxoIDs [][]byte) ([]*objs.TXOut, [][]byte, error)

Get returns a UTXO by utxoID.

func (*UTXOHandler) GetData ¶

func (ut *UTXOHandler) GetData(txn *badger.Txn, owner *objs.Owner, dataIdx []byte) ([]byte, error)

GetData returns the data stored in a utxo by owner and the data index.

func (*UTXOHandler) GetExpiredForProposal ¶

func (ut *UTXOHandler) GetExpiredForProposal(txn *badger.Txn, ctx context.Context, chainID, height uint32, curveSpec constants.CurveSpec, signer objs.Signer, maxBytes uint32) (*objs.Tx, error)

GetExpiredForProposal returns a list of UTXOs, the IDs of those UTXOs, and the total byte count of the returned UTXOs. This is used to collect expired dataStores for deletion.

func (*UTXOHandler) GetSnapShotNode ¶

func (ut *UTXOHandler) GetSnapShotNode(txn *badger.Txn, height uint32, key []byte) ([]byte, error)

func (*UTXOHandler) GetStateRootForProposal ¶

func (ut *UTXOHandler) GetStateRootForProposal(txn *badger.Txn, txs objs.TxVec) ([]byte, error)

GetStateRootForProposal allows a new stateRoot to be calculated for a proposal without committing the changes to the trie.

func (*UTXOHandler) GetValueForOwner ¶

func (ut *UTXOHandler) GetValueForOwner(txn *badger.Txn, owner *objs.Owner, minValue *uint256.Uint256) ([][]byte, *uint256.Uint256, error)

GetValueForOwner allows a list of utxoIDs to be returned that are equal or greater than the value passed as minValue, and are owned by owner.

func (*UTXOHandler) Init ¶

func (ut *UTXOHandler) Init(height uint32) error

Init will initialize the UTXOHandler

func (*UTXOHandler) IsValid ¶

func (ut *UTXOHandler) IsValid(txn *badger.Txn, txs objs.TxVec, currentHeight uint32, deposits objs.Vout) (objs.Vout, error)

IsValid verifies the rules of batches across transactions as is generated in a block

func (*UTXOHandler) PaginateDataByOwner ¶

func (ut *UTXOHandler) PaginateDataByOwner(txn *badger.Txn, owner *objs.Owner, currentHeight uint32, numItems int, startIndex []byte) ([]*objs.PaginationResponse, error)

PaginateDataByOwner ...

func (*UTXOHandler) StoreSnapShotNode ¶

func (ut *UTXOHandler) StoreSnapShotNode(txn *badger.Txn, batch []byte, root []byte, layer int) ([][]byte, int, []trie.LeafNode, error)

func (*UTXOHandler) StoreSnapShotStateData ¶

func (ut *UTXOHandler) StoreSnapShotStateData(txn *badger.Txn, utxoID []byte, preHash []byte, utxoBytes []byte) error

func (*UTXOHandler) TrieContains ¶

func (ut *UTXOHandler) TrieContains(txn *badger.Txn, utxoID []byte) (bool, error)

TrieContains allows a utxoID to be referenced in the trie. If the trie contains the utxoID, the result will be true, nil.