contract

package
v0.19.2 Latest Latest
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 Go to latest Published: Sep 24, 2023 License: AGPL-3.0 Imports: 16 Imported by: 0

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Index

Constants

View Source 
const MedianPricePrecision = 18
View Source 
const ScribePricePrecision = 18

Variables

This section is empty.

Functions

func ConstructMedianPokeMessage added in v0.19.2 

func ConstructMedianPokeMessage(wat string, val *bn.DecFloatPointNumber, age time.Time) types.Hash

ConstructMedianPokeMessage returns the message expected to be signed via ECDSA for calling Median.poke method.

The message structure is defined as: H(tag ‖ H(val ‖ age ‖ wat)

Where: - tag: - val: a price value - age: a time when the price was observed - wat: an asset name

func ConstructScribeOpPokeMessage added in v0.19.2 

func ConstructScribeOpPokeMessage(wat string, pokeData PokeData, schnorrData SchnorrData, signersBlob []byte) types.Hash

ConstructScribeOpPokeMessage returns the message expected to be signed via ECDSA for calling OpScribe.opPoke method.

The message structure is defined as: H(tag ‖ H(wat ‖ val ‖ age ‖ signature ‖ commitment ‖ signersBlob))

Where: - tag is the message prefix (EIP-191) - wat: an asset name - val: a price value - age: a time when the price was observed - signature: a Schnorr signature - commitment: a Schnorr commitment - signersBlob: a byte slice with signers indexes obtained from a contract

func ConstructScribePokeMessage added in v0.19.2 

func ConstructScribePokeMessage(wat string, pokeData PokeData) types.Hash

ConstructScribePokeMessage returns the message expected to be signed via ECDSA for calling Scribe.poke method.

The message is defined as: H(tag ‖ H(wat ‖ val ‖ age))

Where: - tag is the message prefix (EIP-191) - wat: an asset name - val: a price value - age: a time when the price was observed

func SignersBlob 

func SignersBlob(signers []types.Address, feeds []types.Address, indices []uint8) ([]byte, error)

SignersBlob helps to generate signersBlob for PokeData struct.

Types

type Chainlog 

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

func NewChainlog 

func NewChainlog(client rpc.RPC, address types.Address) *Chainlog

func (*Chainlog) Address 

func (w *Chainlog) Address() types.Address

func (*Chainlog) TryGet 

func (w *Chainlog) TryGet(ctx context.Context, wat string) (ok bool, address types.Address, ere error)

type ECDSADataStruct 

type ECDSADataStruct struct {
	V uint8    `abi:"v"`
	R *big.Int `abi:"r"`
	S *big.Int `abi:"s"`
}

ECDSADataStruct represents the ECDSAData struct in the IScribe interface.

type Median 

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

func NewMedian 

func NewMedian(client rpc.RPC, address types.Address) *Median

func (*Median) Address 

func (m *Median) Address() types.Address

func (*Median) Age 

func (m *Median) Age(ctx context.Context) (time.Time, error)

func (*Median) Bar 

func (m *Median) Bar(ctx context.Context) (int, error)

func (*Median) Poke 

func (m *Median) Poke(ctx context.Context, vals []MedianVal) (*types.Hash, *types.Transaction, error)

func (*Median) Val 

func (m *Median) Val(ctx context.Context) (*bn.DecFixedPointNumber, error)

func (*Median) Wat 

func (m *Median) Wat(ctx context.Context) (string, error)

type MedianVal 

type MedianVal struct {
	Val *bn.DecFixedPointNumber
	Age time.Time
	V   uint8
	R   *big.Int
	S   *big.Int
}

type OpScribe 

type OpScribe struct {
	Scribe
}

func NewOpScribe 

func NewOpScribe(client rpc.RPC, address types.Address) *OpScribe

func (*OpScribe) OpChallengePeriod added in v0.16.0 

func (s *OpScribe) OpChallengePeriod(ctx context.Context) (time.Duration, error)

func (*OpScribe) OpPoke 

func (s *OpScribe) OpPoke(
	ctx context.Context,
	pokeData PokeData,
	schnorrData SchnorrData,
	ecdsaData types.Signature,
) (
	*types.Hash,
	*types.Transaction,
	error,
)

func (*OpScribe) Read added in v0.16.0 

func (s *OpScribe) Read(ctx context.Context) (PokeData, error)

func (*OpScribe) ReadAt added in v0.16.0 

func (s *OpScribe) ReadAt(ctx context.Context, readTime time.Time) (PokeData, error)

func (*OpScribe) ReadOpPokeData added in v0.16.0 

func (s *OpScribe) ReadOpPokeData(ctx context.Context) (PokeData, error)

func (*OpScribe) ReadPokeData added in v0.16.0 

func (s *OpScribe) ReadPokeData(ctx context.Context) (PokeData, error)

type PokeData 

type PokeData struct {
	Val *bn.DecFixedPointNumber
	Age time.Time
}

type PokeDataStruct 

type PokeDataStruct struct {
	Val *big.Int `abi:"val"`
	Age uint32   `abi:"age"`
}

PokeDataStruct represents the PokeData struct in the IScribe interface.

type SchnorrData 

type SchnorrData struct {
	Signature   *big.Int
	Commitment  types.Address
	SignersBlob []byte
}

type SchnorrDataStruct 

type SchnorrDataStruct struct {
	Signature   *big.Int      `abi:"signature"`
	Commitment  types.Address `abi:"commitment"`
	SignersBlob []byte        `abi:"signersBlob"`
}

SchnorrDataStruct represents the SchnorrData struct in the IScribe interface.

type Scribe 

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

func NewScribe 

func NewScribe(client rpc.RPC, address types.Address) *Scribe

func (*Scribe) Address 

func (s *Scribe) Address() types.Address

func (*Scribe) Bar 

func (s *Scribe) Bar(ctx context.Context) (int, error)

func (*Scribe) Feeds 

func (s *Scribe) Feeds(ctx context.Context) ([]types.Address, []uint8, error)

func (*Scribe) Poke 

func (s *Scribe) Poke(ctx context.Context, pokeData PokeData, schnorrData SchnorrData) (*types.Hash, *types.Transaction, error)

func (*Scribe) Read 

func (s *Scribe) Read(ctx context.Context) (PokeData, error)

func (*Scribe) Wat 

func (s *Scribe) Wat(ctx context.Context) (string, error)

type WatRegistry 

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

func NewWatRegistry 

func NewWatRegistry(client rpc.RPC, address types.Address) *WatRegistry

func (*WatRegistry) Address 

func (w *WatRegistry) Address() types.Address

func (*WatRegistry) Bar 

func (w *WatRegistry) Bar(ctx context.Context, wat string) (int, error)

func (*WatRegistry) Feeds 

func (w *WatRegistry) Feeds(ctx context.Context, wat string) ([]types.Address, error)

Source Files

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