Method ValidateTx

protocol/tx.go:19–31

ValidateTx validates the given transaction. A cache holds per-transaction validation results and is consulted before performing full validation.

(tx *bc.Tx)

// per-transaction validation results and is consulted before
// performing full validation.
func (c *Chain) ValidateTx(tx *bc.Tx) error {
	err := c.checkIssuanceWindow(tx)
	if err != nil {
		return err
	}
	var ok bool
	err, ok = c.prevalidated.lookup(tx.ID)
	if !ok {
		err = validation.ValidateTx(tx, c.InitialBlockHash)
		c.prevalidated.cache(tx.ID, err)
	}
	return errors.Sub(ErrBadTx, err)
}

type prevalidatedTxsCache struct {
	mu  sync.Mutex