XDCxlending

package
v1.5.0 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Dec 15, 2023 License: GPL-3.0 Imports: 21 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	ProtocolName       = "XDCxlending"
	ProtocolVersion    = uint64(1)
	ProtocolVersionStr = "1.0"
)

Variables

View Source 
var (
	ErrNonceTooHigh = errors.New("nonce too high")
	ErrNonceTooLow  = errors.New("nonce too low")
)
View Source 
var (
	ErrOrderNonceTooLow  = errors.New("OrderNonce too low")
	ErrOrderNonceTooHigh = errors.New("OrderNonce too high")
)

List of errors

Functions

func DoSettleBalance 

func DoSettleBalance(coinbase common.Address, takerOrder, makerOrder *lendingstate.LendingItem, settleBalance *lendingstate.LendingSettleBalance, statedb *state.StateDB) error

func GetLendQuantity 

func GetLendQuantity(takerSide string, collateralTokenDecimal *big.Int, depositRate *big.Int, collateralPrice *big.Int, takerBalance *big.Int, makerBalance *big.Int, quantityToLend *big.Int) (*big.Int, bool)

Types

type Lending 

type Lending struct {
	Triegc     *prque.Prque          // Priority queue mapping block numbers to tries to gc
	StateCache lendingstate.Database // State database to reuse between imports (contains state cache)    *lendingstate.TradingStateDB

	XDCx *XDCx.XDCX
	// contains filtered or unexported fields
}

func New 

func New(XDCx *XDCx.XDCX) *Lending

func (*Lending) APIs 

func (l *Lending) APIs() []rpc.API

APIs returns the RPC descriptors the Lending implementation offers

func (*Lending) ApplyOrder 

func (l *Lending) ApplyOrder(header *types.Header, coinbase common.Address, chain consensus.ChainContext, statedb *state.StateDB, lendingStateDB *lendingstate.LendingStateDB, tradingStateDb *tradingstate.TradingStateDB, lendingOrderBook common.Hash, order *lendingstate.LendingItem) ([]*lendingstate.LendingTrade, []*lendingstate.LendingItem, error)

func (*Lending) AutoTopUp 

func (l *Lending) AutoTopUp(statedb *state.StateDB, tradingState *tradingstate.TradingStateDB, lendingState *lendingstate.LendingStateDB, lendingBook, lendingTradeId common.Hash, currentPrice *big.Int) (*lendingstate.LendingTrade, error)

func (*Lending) CommitOrder 

func (l *Lending) CommitOrder(header *types.Header, coinbase common.Address, chain consensus.ChainContext, statedb *state.StateDB, lendingStateDB *lendingstate.LendingStateDB, tradingStateDb *tradingstate.TradingStateDB, lendingOrderBook common.Hash, order *lendingstate.LendingItem) ([]*lendingstate.LendingTrade, []*lendingstate.LendingItem, error)

func (*Lending) GetCollateralPrices 

func (l *Lending) GetCollateralPrices(header *types.Header, chain consensus.ChainContext, statedb *state.StateDB, tradingStateDb *tradingstate.TradingStateDB, collateralToken common.Address, lendingToken common.Address) (*big.Int, *big.Int, error)

LendToken and CollateralToken must meet at least one of following conditions - Have direct pair in XDCX: lendToken/CollateralToken or CollateralToken/LendToken - Have pairs with XDC: - lendToken/XDC and CollateralToken/XDC - XDC/lendToken and XDC/CollateralToken

func (*Lending) GetLendingState 

func (l *Lending) GetLendingState(block *types.Block, author common.Address) (*lendingstate.LendingStateDB, error)

func (*Lending) GetLendingStateRoot 

func (l *Lending) GetLendingStateRoot(block *types.Block, author common.Address) (common.Hash, error)

func (*Lending) GetLevelDB 

func (l *Lending) GetLevelDB() XDCxDAO.XDCXDAO

func (*Lending) GetMediumTradePriceBeforeEpoch 

func (l *Lending) GetMediumTradePriceBeforeEpoch(chain consensus.ChainContext, statedb *state.StateDB, tradingStateDb *tradingstate.TradingStateDB, baseToken common.Address, quoteToken common.Address) (*big.Int, error)

func (*Lending) GetMongoDB 

func (l *Lending) GetMongoDB() XDCxDAO.XDCXDAO

func (*Lending) GetStateCache 

func (l *Lending) GetStateCache() lendingstate.Database

func (*Lending) GetTriegc 

func (l *Lending) GetTriegc() *prque.Prque

func (*Lending) GetXDCBasePrices 

func (l *Lending) GetXDCBasePrices(header *types.Header, chain consensus.ChainContext, statedb *state.StateDB, tradingStateDb *tradingstate.TradingStateDB, token common.Address) (*big.Int, error)

func (*Lending) HasLendingState 

func (l *Lending) HasLendingState(block *types.Block, author common.Address) bool

func (*Lending) LiquidationExpiredTrade 

func (l *Lending) LiquidationExpiredTrade(header *types.Header, chain consensus.ChainContext, lendingStateDB *lendingstate.LendingStateDB, statedb *state.StateDB, tradingstateDB *tradingstate.TradingStateDB, lendingBook common.Hash, lendingTradeId uint64) (*lendingstate.LendingTrade, error)

return liquidatedTrade

func (*Lending) LiquidationTrade 

func (l *Lending) LiquidationTrade(lendingStateDB *lendingstate.LendingStateDB, statedb *state.StateDB, tradingstateDB *tradingstate.TradingStateDB, lendingBook common.Hash, lendingTradeId uint64) (*lendingstate.LendingTrade, error)

return liquidatedTrade

func (*Lending) ProcessCancelOrder 

func (l *Lending) ProcessCancelOrder(header *types.Header, lendingStateDB *lendingstate.LendingStateDB, statedb *state.StateDB, tradingStateDb *tradingstate.TradingStateDB, chain consensus.ChainContext, coinbase common.Address, lendingOrderBook common.Hash, order *lendingstate.LendingItem) (error, bool)

func (*Lending) ProcessLiquidationData 

func (l *Lending) ProcessLiquidationData(header *types.Header, chain consensus.ChainContext, statedb *state.StateDB, tradingState *tradingstate.TradingStateDB, lendingState *lendingstate.LendingStateDB) (updatedTrades map[common.Hash]*lendingstate.LendingTrade, liquidatedTrades, autoRepayTrades, autoTopUpTrades, autoRecallTrades []*lendingstate.LendingTrade, err error)

func (*Lending) ProcessOrderPending 

func (l *Lending) ProcessOrderPending(header *types.Header, coinbase common.Address, chain consensus.ChainContext, pending map[common.Address]types.LendingTransactions, statedb *state.StateDB, lendingStatedb *lendingstate.LendingStateDB, tradingStateDb *tradingstate.TradingStateDB) ([]*lendingstate.LendingItem, map[common.Hash]lendingstate.MatchingResult)

func (*Lending) ProcessRecallLendingTrade 

func (l *Lending) ProcessRecallLendingTrade(lendingStateDB *lendingstate.LendingStateDB, statedb *state.StateDB, tradingStateDb *tradingstate.TradingStateDB, lendingBook common.Hash, lendingTradeId common.Hash, newLiquidationPrice *big.Int) (error, bool, *lendingstate.LendingTrade)

func (*Lending) ProcessRepay 

func (l *Lending) ProcessRepay(header *types.Header, chain consensus.ChainContext, lendingStateDB *lendingstate.LendingStateDB, statedb *state.StateDB, tradingstateDB *tradingstate.TradingStateDB, lendingBook common.Hash, order *lendingstate.LendingItem) (trade *lendingstate.LendingTrade, err error)

return hash: hash of lendingTrade

func (*Lending) ProcessRepayLendingTrade 

func (l *Lending) ProcessRepayLendingTrade(header *types.Header, chain consensus.ChainContext, lendingStateDB *lendingstate.LendingStateDB, statedb *state.StateDB, tradingstateDB *tradingstate.TradingStateDB, lendingBook common.Hash, lendingTradeId uint64) (trade *lendingstate.LendingTrade, err error)

func (*Lending) ProcessTopUp 

func (l *Lending) ProcessTopUp(lendingStateDB *lendingstate.LendingStateDB, statedb *state.StateDB, tradingStateDb *tradingstate.TradingStateDB, order *lendingstate.LendingItem) (error, bool, *lendingstate.LendingTrade)

func (*Lending) ProcessTopUpLendingTrade 

func (l *Lending) ProcessTopUpLendingTrade(lendingStateDB *lendingstate.LendingStateDB, statedb *state.StateDB, tradingStateDb *tradingstate.TradingStateDB, lendingTradeId common.Hash, lendingBook common.Hash, quantity *big.Int) (error, bool, *lendingstate.LendingTrade)

func (*Lending) Protocols 

func (l *Lending) Protocols() []p2p.Protocol

func (*Lending) RollbackLendingData 

func (l *Lending) RollbackLendingData(txhash common.Hash) error

func (*Lending) SaveData 

func (l *Lending) SaveData()

func (*Lending) Start 

func (l *Lending) Start(server *p2p.Server) error

func (*Lending) Stop 

func (l *Lending) Stop() error

func (*Lending) SyncDataToSDKNode 

func (l *Lending) SyncDataToSDKNode(chain consensus.ChainContext, statedb *state.StateDB, block *types.Block, takerLendingItem *lendingstate.LendingItem, txHash common.Hash, txMatchTime time.Time, trades []*lendingstate.LendingTrade, rejectedItems []*lendingstate.LendingItem, dirtyOrderCount *uint64) error

there are 3 tasks need to complete (for SDK nodes) after matching 1. Put takerLendingItem to database 2.a Update status, filledAmount of makerLendingItem 2.b. Put lendingTrade to database 3. Update status of rejected items

func (*Lending) UpdateLendingItemCache 

func (l *Lending) UpdateLendingItemCache(LendingToken, CollateralToken common.Address, hash common.Hash, txhash common.Hash, lastState lendingstate.LendingItemHistoryItem)

func (*Lending) UpdateLendingTrade 

func (l *Lending) UpdateLendingTrade(trades map[common.Hash]*lendingstate.LendingTrade, txhash common.Hash, txTime time.Time) error

func (*Lending) UpdateLendingTradeCache 

func (l *Lending) UpdateLendingTradeCache(hash common.Hash, txhash common.Hash, lastState lendingstate.LendingTradeHistoryItem)

func (*Lending) UpdateLiquidatedTrade 

func (l *Lending) UpdateLiquidatedTrade(blockTime uint64, result lendingstate.FinalizedResult, trades map[common.Hash]*lendingstate.LendingTrade) error

func (*Lending) Version 

func (l *Lending) Version() uint64

Version returns the Lending sub-protocols version number.

type PublicXDCXLendingAPI 

type PublicXDCXLendingAPI struct {
	// contains filtered or unexported fields
}

PublicXDCXLendingAPI provides the XDCX RPC service that can be use publicly without security implications.

func NewPublicXDCXLendingAPI 

func NewPublicXDCXLendingAPI(t *Lending) *PublicXDCXLendingAPI

NewPublicXDCXLendingAPI create a new RPC XDCX service.

func (*PublicXDCXLendingAPI) Version 

func (api *PublicXDCXLendingAPI) Version(ctx context.Context) string

Version returns the Lending sub-protocol version.

Source Files

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Directories

Path Synopsis
Package state provides a caching layer atop the Ethereum state trie.
 Package state provides a caching layer atop the Ethereum state trie.

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