txpool

type Tag uint64

type TxDesc struct {
	Tx          *blockchain.Tx
	AddedTime   time.Time
	BlockHeight uint32
	Fee         int64
	FeePerKB    int64
	Priority    float64
	// contains filtered or unexported fields
}

type TxPool interface {
	// RemoveOrphanTx remove an orphan transaction, but not its descendants
	RemoveOrphanTx(tx *blockchain.Tx)
	// RemoveOrphanTxsByTag remove all the orphan transactions with tag
	RemoveOrphanTxsByTag(tag Tag) uint64
	// HasOrphanTx check whether hash is an orphan transaction in the pool
	HasOrphanTx(hash cp.Hash32B) bool
	// HasTxOrOrphanTx check whether hash is an accepted or orphan transaction in the pool
	HasTxOrOrphanTx(hash cp.Hash32B) bool
	// RemoveTx remove an accepted transaction
	RemoveTx(tx *blockchain.Tx, removeDescendants bool)
	// RemoveDoubleSpends remove the double spending transaction
	RemoveDoubleSpends(tx *blockchain.Tx)
	// FetchTx fetch accepted transaction from the pool
	FetchTx(hash *cp.Hash32B) (*blockchain.Tx, error)
	// MaybeAcceptTx add Tx into pool if it could be accpted
	MaybeAcceptTx(tx *blockchain.Tx, isNew bool, rateLimit bool) ([]cp.Hash32B, *TxDesc, error)
	// ProcessOrphanTxs process the orphan txs depending on the accepted tx
	ProcessOrphanTxs(acceptedTx *blockchain.Tx) []*TxDesc
	// ProcessTx process the tx
	ProcessTx(tx *blockchain.Tx, allowOrphan bool, rateLimit bool, tag Tag) ([]*TxDesc, error)
	// TxDescs return all the transaction descs
	TxDescs() []*TxDesc
	// Txs return all Transactions
	Txs() []*blockchain.Tx
	// RemoveTxInBlock remove all transactions in a block
	RemoveTxInBlock(block *blockchain.Block) error
	// LastTimePoolUpdated get the last time the pool got updated
	LastTimePoolUpdated() time.Time
}

type TxSourcePointer struct {
	Hash  cp.Hash32B
	Index int32
}