blocklog

package
v0.5.1-alpha.3 Latest Latest
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 Go to latest Published: Mar 20, 2023 License: Apache-2.0 Imports: 19 Imported by: 1

Documentation

Overview

in the blocklog core contract the VM keeps indices of blocks and requests in an optimized way for fast checking and timestamp access.

Index

Constants

View Source 
const (
	BlockInfoAliasOutputSchemaVersion = 1
	BlockInfoLatestSchemaVersion      = BlockInfoAliasOutputSchemaVersion
)
View Source 
const (
	// parameters
	ParamBlockIndex             = "n"
	ParamBlockInfo              = "i"
	ParamGoverningAddress       = "g"
	ParamContractHname          = "h"
	ParamFromBlock              = "f"
	ParamToBlock                = "t"
	ParamRequestID              = "u"
	ParamRequestIndex           = "r"
	ParamRequestProcessed       = "p"
	ParamRequestRecord          = "d"
	ParamEvent                  = "e"
	ParamStateControllerAddress = "s"
)
View Source 
const TransactionEssenceHashLength = 32

Variables

View Source 
var (
	// TODO feels like controlAddresses could be deprecated - controller addresses can be derived from the AO
	ViewControlAddresses           = coreutil.ViewFunc("controlAddresses")
	ViewGetBlockInfo               = coreutil.ViewFunc("getBlockInfo")
	ViewGetRequestIDsForBlock      = coreutil.ViewFunc("getRequestIDsForBlock")
	ViewGetRequestReceipt          = coreutil.ViewFunc("getRequestReceipt")
	ViewGetRequestReceiptsForBlock = coreutil.ViewFunc("getRequestReceiptsForBlock")
	ViewIsRequestProcessed         = coreutil.ViewFunc("isRequestProcessed")
	ViewGetEventsForRequest        = coreutil.ViewFunc("getEventsForRequest")
	ViewGetEventsForBlock          = coreutil.ViewFunc("getEventsForBlock")
	ViewGetEventsForContract       = coreutil.ViewFunc("getEventsForContract")
)
View Source 
var Contract = coreutil.NewContract(coreutil.CoreContractBlocklog, "Block log contract")
View Source 
var Processor = Contract.Processor(nil,
	ViewControlAddresses.WithHandler(viewControlAddresses),
	ViewGetBlockInfo.WithHandler(viewGetBlockInfo),
	ViewGetEventsForBlock.WithHandler(viewGetEventsForBlock),
	ViewGetEventsForContract.WithHandler(viewGetEventsForContract),
	ViewGetEventsForRequest.WithHandler(viewGetEventsForRequest),
	ViewGetRequestIDsForBlock.WithHandler(viewGetRequestIDsForBlock),
	ViewGetRequestReceipt.WithHandler(viewGetRequestReceipt),
	ViewGetRequestReceiptsForBlock.WithHandler(viewGetRequestReceiptsForBlock),
	ViewIsRequestProcessed.WithHandler(viewIsRequestProcessed),
)

Functions

func BlockInfoKey added in v0.3.0 

func BlockInfoKey(index uint32) []byte

BlockInfoKey a key to access block info record inside SC state

func GetEventsByBlockIndex added in v1.0.3 

func GetEventsByBlockIndex(partition kv.KVStoreReader, blockIndex uint32, totalRequests uint16) ([]string, error)

func GetOutputID added in v1.0.3 

func GetOutputID(stateR kv.KVStoreReader, stateIndex uint32, outputIndex uint16) (iotago.OutputID, error)

func GetRequestIDsForBlock 

func GetRequestIDsForBlock(stateReader kv.KVStoreReader, blockIndex uint32) ([]isc.RequestID, error)

GetRequestIDsForLastBlock reads blocklog from chain state and returns request IDs settled in specific block Can only panic on DB error of internal error

func IsRequestProcessed 

func IsRequestProcessed(stateReader kv.KVStoreReader, requestID isc.RequestID) (bool, error)

IsRequestProcessed check if requestID is stored in the chain state as processed

func MustIsRequestProcessed added in v0.3.0 

func MustIsRequestProcessed(stateReader kv.KVStoreReader, reqid isc.RequestID) bool

func RequestReceiptKey added in v0.3.0 

func RequestReceiptKey(rkey RequestLookupKey) []byte

func SaveControlAddressesIfNecessary 

func SaveControlAddressesIfNecessary(partition kv.KVStore, stateAddress, governingAddress iotago.Address, blockIndex uint32)

SaveControlAddressesIfNecessary saves new information about state address in the blocklog partition If state address does not change, it does nothing

func SaveEvent 

func SaveEvent(partition kv.KVStore, msg string, key EventLookupKey, contract isc.Hname) error

func SaveNextBlockInfo 

func SaveNextBlockInfo(partition kv.KVStore, blockInfo *BlockInfo)

SaveNextBlockInfo appends block info and returns its index

func SaveRequestReceipt added in v0.3.0 

func SaveRequestReceipt(partition kv.KVStore, rec *RequestReceipt, key RequestLookupKey) error

SaveRequestReceipt appends request record to the record log and creates records for fast lookup

func SetInitialState added in v1.0.3 

func SetInitialState(s kv.KVStore)

func UpdateLatestBlockInfo added in v0.3.0 

func UpdateLatestBlockInfo(partition kv.KVStore, anchorTxID iotago.TransactionID, aliasOutput *isc.AliasOutputWithID, l1commitment *state.L1Commitment)

UpdateLatestBlockInfo is called before producing the next block to save anchor tx id and commitment data of the previous one

Types

type BlockInfo 

type BlockInfo struct {
	SchemaVersion         uint8
	BlockIndex            uint32 // not persistent. Set from key
	Timestamp             time.Time
	TotalRequests         uint16
	NumSuccessfulRequests uint16 // which didn't panic
	NumOffLedgerRequests  uint16

	// schema >= BlockInfoAliasOutputSchemaVersion
	PreviousAliasOutput *isc.AliasOutputWithID // if new schema => always not nil
	AliasOutput         *isc.AliasOutputWithID // if new schema => nil when not known yet for the current state

	TransactionSubEssenceHash   TransactionEssenceHash // always known even without state commitment. Needed for fraud proofs
	TotalBaseTokensInL2Accounts uint64
	TotalStorageDeposit         uint64
	GasBurned                   uint64
	GasFeeCharged               uint64
	// contains filtered or unexported fields
}

func BlockInfoFromBytes 

func BlockInfoFromBytes(blockIndex uint32, data []byte) (*BlockInfo, error)

func GetBlockInfo added in v1.0.3 

func GetBlockInfo(partition kv.KVStoreReader, blockIndex uint32) (*BlockInfo, error)

func (*BlockInfo) AnchorTransactionID added in v0.3.0 

func (bi *BlockInfo) AnchorTransactionID() iotago.TransactionID

func (*BlockInfo) Bytes 

func (bi *BlockInfo) Bytes() []byte

func (*BlockInfo) L1Commitment added in v0.3.0 

func (bi *BlockInfo) L1Commitment() *state.L1Commitment

func (*BlockInfo) PreviousL1Commitment added in v0.3.0 

func (bi *BlockInfo) PreviousL1Commitment() *state.L1Commitment

func (*BlockInfo) RequestTimestamp 

func (bi *BlockInfo) RequestTimestamp(requestIndex uint16) time.Time

RequestTimestamp returns timestamp which corresponds to the request with the given index Timestamps of requests are incremented by 1 nanosecond in the block. The timestamp of the last one is equal to the timestamp pof the block

func (*BlockInfo) String 

func (bi *BlockInfo) String() string

type ControlAddresses 

type ControlAddresses struct {
	StateAddress     iotago.Address
	GoverningAddress iotago.Address
	SinceBlockIndex  uint32
}

func ControlAddressesFromBytes 

func ControlAddressesFromBytes(data []byte) (*ControlAddresses, error)

func ControlAddressesFromMarshalUtil 

func ControlAddressesFromMarshalUtil(mu *marshalutil.MarshalUtil) (*ControlAddresses, error)

func (*ControlAddresses) Bytes 

func (ca *ControlAddresses) Bytes() []byte

func (*ControlAddresses) String 

func (ca *ControlAddresses) String() string

type EventLookupKey 

type EventLookupKey [8]byte

EventLookupKey is a globally unique reference to the event: block index + index of the request within block + index of the event within the request

func EventLookupKeyFromBytes 

func EventLookupKeyFromBytes(r io.Reader) (*EventLookupKey, error)

func NewEventLookupKey 

func NewEventLookupKey(blockIndex uint32, requestIndex, eventIndex uint16) EventLookupKey

func (EventLookupKey) BlockIndex 

func (k EventLookupKey) BlockIndex() uint32

func (EventLookupKey) Bytes 

func (k EventLookupKey) Bytes() []byte

func (EventLookupKey) RequestEventIndex 

func (k EventLookupKey) RequestEventIndex() uint16

func (EventLookupKey) RequestIndex 

func (k EventLookupKey) RequestIndex() uint16

func (*EventLookupKey) Write 

func (k *EventLookupKey) Write(w io.Writer) error

type GetRequestReceiptResult added in v0.3.0 

type GetRequestReceiptResult struct {
	ReceiptBin   []byte
	BlockIndex   uint32
	RequestIndex uint16
}

func GetRequestRecordDataByRequestID added in v0.3.0 

func GetRequestRecordDataByRequestID(stateReader kv.KVStoreReader, reqID isc.RequestID) (*GetRequestReceiptResult, error)

GetRequestRecordDataByRequestID tries to obtain the receipt data for a given request returns nil if receipt was not found

type RequestLookupKey 

type RequestLookupKey [6]byte

RequestLookupReference globally unique reference to the request: block index and index of the request within block

func NewRequestLookupKey 

func NewRequestLookupKey(blockIndex uint32, requestIndex uint16) RequestLookupKey

func (RequestLookupKey) BlockIndex 

func (k RequestLookupKey) BlockIndex() uint32

func (RequestLookupKey) Bytes 

func (k RequestLookupKey) Bytes() []byte

func (*RequestLookupKey) Read 

func (k *RequestLookupKey) Read(r io.Reader) error

func (RequestLookupKey) RequestIndex 

func (k RequestLookupKey) RequestIndex() uint16

func (*RequestLookupKey) Write 

func (k *RequestLookupKey) Write(w io.Writer) error

type RequestLookupKeyList 

type RequestLookupKeyList []RequestLookupKey

RequestLookupKeyList a list of RequestLookupReference of requests with colliding isc.RequestLookupDigest

func RequestLookupKeyListFromBytes 

func RequestLookupKeyListFromBytes(data []byte) (RequestLookupKeyList, error)

func (RequestLookupKeyList) Bytes 

func (ll RequestLookupKeyList) Bytes() []byte

type RequestReceipt 

type RequestReceipt struct {
	// TODO request may be big (blobs). Do we want to store it all?
	Request       isc.Request            `json:"request"`
	Error         *isc.UnresolvedVMError `json:"error"`
	GasBudget     uint64                 `json:"gasBudget"`
	GasBurned     uint64                 `json:"gasBurned"`
	GasFeeCharged uint64                 `json:"gasFeeCharged"`
	// not persistent
	BlockIndex   uint32       `json:"blockIndex"`
	RequestIndex uint16       `json:"requestIndex"`
	GasBurnLog   *gas.BurnLog `json:"-"`
}

RequestReceipt represents log record of processed request on the chain

func GetRequestReceipt added in v1.0.3 

func GetRequestReceipt(stateReader kv.KVStoreReader, requestID isc.RequestID) (*RequestReceipt, error)

func RequestReceiptFromBytes 

func RequestReceiptFromBytes(data []byte) (*RequestReceipt, error)

func RequestReceiptFromMarshalUtil added in v0.3.0 

func RequestReceiptFromMarshalUtil(mu *marshalutil.MarshalUtil) (*RequestReceipt, error)

func RequestReceiptsFromBlock added in v1.0.3 

func RequestReceiptsFromBlock(block state.Block) ([]*RequestReceipt, error)

func (*RequestReceipt) Bytes 

func (r *RequestReceipt) Bytes() []byte

func (*RequestReceipt) LookupKey added in v0.3.0 

func (r *RequestReceipt) LookupKey() RequestLookupKey

func (*RequestReceipt) Short 

func (r *RequestReceipt) Short() string

func (*RequestReceipt) String 

func (r *RequestReceipt) String() string

func (*RequestReceipt) ToISCReceipt added in v0.3.0 

func (r *RequestReceipt) ToISCReceipt(resolvedError *isc.VMError) *isc.Receipt

func (*RequestReceipt) WithBlockData 

func (r *RequestReceipt) WithBlockData(blockIndex uint32, requestIndex uint16) *RequestReceipt

type TransactionEssenceHash added in v0.3.0 

type TransactionEssenceHash [TransactionEssenceHashLength]byte

TransactionEssenceHash is a blake2b 256 bit hash of the essence of the transaction Used to calculate sub-essence hash

func CalcTransactionEssenceHash added in v0.3.0 

func CalcTransactionEssenceHash(essence *iotago.TransactionEssence) (ret TransactionEssenceHash)

Source Files

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