txpool

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

type TxnByNonce core.Transactions

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

type TxnPool interface {
	// Fetch collects Transactions from the pool.
	// They are not removed from the pool until Clear is called with that Transaction
	Fetch() core.Transactions
	// FetchFor collects Transactions from queue for a specific address
	// They are not removed from the pool until Clear is called with the Transaction
	FetchFor(common.Address) *TransactionSet

	// Insert inserts Transactions into the pool
	Insert(...*core.Transaction)
	// Contains returns whether a transaction exists for a given transaction hash.
	// Will return true only if the transaction exists in the active set.
	Contains(common.Hash) bool

	// Clear removes the given Transactions from the pending and active
	Clear(...*core.Transaction)
	// Restore attempts to restore the given Transaction from the pending set into to pool.
	Restore(...*core.Transaction)
	// Purge completely removes all Transactions pending or not from the pool
	Purge() int

	// Pending returns the number of transactions in the pending set
	// i.e, transaction that have been fetched from the pool but not cleared.
	Pending() int
	// Active returns the number of transactions in active set.
	// This does not include transactions in the pending set.
	Active() int
}