fc

Documentation

Index

• Constants
• Variables
• func ValidateCloseFC(attr *fc.CloseFeeCreditAttributes, fcr *fc.FeeCreditRecord) error
• func ValidateGenericFeeCreditTx(tx *types.TransactionOrder) error
• func VerifyMaxTxFeeDoesNotExceedFRCBalance(tx *types.TransactionOrder, fcrBalance uint64) error
• type FeeBalanceValidator
  • func NewFeeBalanceValidator(stateReader StateReader, execPredicate predicates.PredicateRunner, ...) *FeeBalanceValidator
  • func (f *FeeBalanceValidator) IsCredible(exeCtx txtypes.ExecutionContext, tx *types.TransactionOrder) error
• type FeeCreditModule
  • func NewFeeCreditModule(networkID types.NetworkID, systemID types.SystemID, ...) (*FeeCreditModule, error)
  • func (f *FeeCreditModule) BuyGas(maxTxCost uint64) uint64
  • func (f *FeeCreditModule) CalculateCost(gasUsed uint64) uint64
  • func (f *FeeCreditModule) IsCredible(exeCtx txtypes.ExecutionContext, tx *types.TransactionOrder) error
  • func (f *FeeCreditModule) IsFeeCreditTx(tx *types.TransactionOrder) bool
  • func (f *FeeCreditModule) IsValid() error
  • func (f *FeeCreditModule) NewFeeCreditRecordID(unitID []byte, ownerPredicate []byte, timeout uint64) types.UnitID
  • func (f *FeeCreditModule) TxHandlers() map[uint16]txtypes.TxExecutor
• type NoFeeHandling
  • func NewNoFeeCreditModule() *NoFeeHandling
  • func (f *NoFeeHandling) BuyGas(_ uint64) uint64
  • func (f *NoFeeHandling) CalculateCost(_ uint64) uint64
  • func (f *NoFeeHandling) IsCredible(_ txtypes.ExecutionContext, _ *types.TransactionOrder) error
  • func (f *NoFeeHandling) IsFeeCreditTx(tx *types.TransactionOrder) bool
  • func (f *NoFeeHandling) TxHandlers() map[uint16]txtypes.TxExecutor
• type Option
  • func WithFeeCreditRecordUnitType(feeCreditRecordUnitType []byte) Option
  • func WithHashAlgorithm(hashAlgorithm crypto.Hash) Option
• type StateReader

Constants

const (
	GeneralTxCostGasUnits = 400
	GasUnitsPerTema       = 1000
)

Variables

var (
	ErrNetworkIdentifierMissing     = errors.New("network identifier is missing")
	ErrSystemIdentifierMissing      = errors.New("system identifier is missing")
	ErrMoneySystemIdentifierMissing = errors.New("money transaction system identifier is missing")
	ErrStateIsNil                   = errors.New("state is nil")
	ErrTrustBaseIsNil               = errors.New("trust base is nil")
)

var (
	ErrUnitTypeIsNotFCR     = errors.New("invalid unit identifier: type is not fee credit record")
	ErrUnitDataTypeIsNotFCR = errors.New("invalid unit type: unit is not fee credit record")
)

Functions

func ValidateCloseFC

func ValidateCloseFC(attr *fc.CloseFeeCreditAttributes, fcr *fc.FeeCreditRecord) error

func ValidateGenericFeeCreditTx

func ValidateGenericFeeCreditTx(tx *types.TransactionOrder) error

ValidateGenericFeeCreditTx none of the fee credit transactions must contain fee credit reference or separate fee authorization proof

func VerifyMaxTxFeeDoesNotExceedFRCBalance

func VerifyMaxTxFeeDoesNotExceedFRCBalance(tx *types.TransactionOrder, fcrBalance uint64) error

Types

type FeeBalanceValidator

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

func NewFeeBalanceValidator

func NewFeeBalanceValidator(stateReader StateReader, execPredicate predicates.PredicateRunner, feeCreditRecordUnitType []byte) *FeeBalanceValidator

func (*FeeBalanceValidator) IsCredible

func (f *FeeBalanceValidator) IsCredible(exeCtx txtypes.ExecutionContext, tx *types.TransactionOrder) error

IsCredible implements the fee credit verification for ordinary transactions (everything else except fee credit txs)

type FeeCreditModule

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

FeeCreditModule contains fee credit related functionality.

func NewFeeCreditModule

func NewFeeCreditModule(networkID types.NetworkID, systemID types.SystemID, moneySystemID types.SystemID, state *state.State, trustBase types.RootTrustBase, opts ...Option) (*FeeCreditModule, error)

func (*FeeCreditModule) BuyGas

func (f *FeeCreditModule) BuyGas(maxTxCost uint64) uint64

func (*FeeCreditModule) CalculateCost

func (f *FeeCreditModule) CalculateCost(gasUsed uint64) uint64

func (*FeeCreditModule) IsCredible

func (f *FeeCreditModule) IsCredible(exeCtx txtypes.ExecutionContext, tx *types.TransactionOrder) error

func (*FeeCreditModule) IsFeeCreditTx

func (f *FeeCreditModule) IsFeeCreditTx(tx *types.TransactionOrder) bool

func (*FeeCreditModule) IsValid

func (f *FeeCreditModule) IsValid() error

func (*FeeCreditModule) NewFeeCreditRecordID

func (f *FeeCreditModule) NewFeeCreditRecordID(unitID []byte, ownerPredicate []byte, timeout uint64) types.UnitID

func (*FeeCreditModule) TxHandlers

func (f *FeeCreditModule) TxHandlers() map[uint16]txtypes.TxExecutor

type NoFeeHandling

type NoFeeHandling struct{}

func NewNoFeeCreditModule

func NewNoFeeCreditModule() *NoFeeHandling

func (*NoFeeHandling) BuyGas

func (f *NoFeeHandling) BuyGas(_ uint64) uint64

func (*NoFeeHandling) CalculateCost

func (f *NoFeeHandling) CalculateCost(_ uint64) uint64

func (*NoFeeHandling) IsCredible

func (f *NoFeeHandling) IsCredible(_ txtypes.ExecutionContext, _ *types.TransactionOrder) error

func (*NoFeeHandling) IsFeeCreditTx

func (f *NoFeeHandling) IsFeeCreditTx(tx *types.TransactionOrder) bool

func (*NoFeeHandling) TxHandlers

func (f *NoFeeHandling) TxHandlers() map[uint16]txtypes.TxExecutor

type Option

type Option func(f *FeeCreditModule)

func WithFeeCreditRecordUnitType

func WithFeeCreditRecordUnitType(feeCreditRecordUnitType []byte) Option

func WithHashAlgorithm

func WithHashAlgorithm(hashAlgorithm crypto.Hash) Option

type StateReader

type StateReader interface {
	GetUnit(id types.UnitID, committed bool) (*state.Unit, error)
}