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32a04d1811
* Allow to configure consensus with a JSON file * Define everywhere maxBlockParents as KType * Move consensus default to consensus_defaults.go
48 lines
1.6 KiB
Go
48 lines
1.6 KiB
Go
package transactionvalidator
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import (
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"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
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"github.com/kaspanet/kaspad/domain/consensus/ruleerrors"
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"github.com/kaspanet/kaspad/domain/consensus/utils/estimatedsize"
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"github.com/kaspanet/kaspad/domain/consensus/utils/transactionhelper"
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"github.com/kaspanet/kaspad/domain/consensus/utils/txscript"
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)
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func (v *transactionValidator) transactionMassStandalonePart(tx *externalapi.DomainTransaction) uint64 {
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size := estimatedsize.TransactionEstimatedSerializedSize(tx)
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totalScriptPubKeySize := uint64(0)
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for _, output := range tx.Outputs {
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totalScriptPubKeySize += uint64(len(output.ScriptPublicKey))
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}
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return size*v.massPerTxByte + totalScriptPubKeySize*v.massPerScriptPubKeyByte
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}
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func (v *transactionValidator) transactionMass(tx *externalapi.DomainTransaction) (uint64, error) {
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if transactionhelper.IsCoinBase(tx) {
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return 0, nil
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}
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standaloneMass := v.transactionMassStandalonePart(tx)
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sigOpsCount := uint64(0)
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var missingOutpoints []*externalapi.DomainOutpoint
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for _, input := range tx.Inputs {
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utxoEntry := input.UTXOEntry
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if utxoEntry == nil {
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missingOutpoints = append(missingOutpoints, &input.PreviousOutpoint)
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continue
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}
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// Count the precise number of signature operations in the
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// referenced public key script.
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sigScript := input.SignatureScript
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isP2SH := txscript.IsPayToScriptHash(utxoEntry.ScriptPublicKey())
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sigOpsCount += uint64(txscript.GetPreciseSigOpCount(sigScript, utxoEntry.ScriptPublicKey(), isP2SH))
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}
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if len(missingOutpoints) > 0 {
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return 0, ruleerrors.NewErrMissingTxOut(missingOutpoints)
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}
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return standaloneMass + sigOpsCount*v.massPerSigOp, nil
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}
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