blocklog

package
v0.2.2 Latest Latest
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 Go to latest Published: Nov 5, 2021 License: Apache-2.0, BSD-2-Clause Imports: 22 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 (
	// state variables
	StateVarBlockRegistry             = "b"
	StateVarControlAddresses          = "c"
	StateVarRequestLookupIndex        = "l"
	StateVarRequestReceipts           = "r"
	StateVarRequestEvents             = "e"
	StateVarSmartContractEventsLookup = "e"
)
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"
)

Variables

View Source 
var (
	FuncControlAddresses           = coreutil.ViewFunc("controlAddresses")
	FuncGetBlockInfo               = coreutil.ViewFunc("getBlockInfo")
	FuncGetLatestBlockInfo         = coreutil.ViewFunc("getLatestBlockInfo")
	FuncGetRequestIDsForBlock      = coreutil.ViewFunc("getRequestIDsForBlock")
	FuncGetRequestReceipt          = coreutil.ViewFunc("getRequestReceipt")
	FuncGetRequestReceiptsForBlock = coreutil.ViewFunc("getRequestReceiptsForBlock")
	FuncIsRequestProcessed         = coreutil.ViewFunc("isRequestProcessed")
	FuncGetEventsForRequest        = coreutil.ViewFunc("getEventsForRequest")
	FuncGetEventsForBlock          = coreutil.ViewFunc("getEventsForBlock")
	FuncGetEventsForContract       = coreutil.ViewFunc("getEventsForContract")
)
View Source 
var Contract = coreutil.NewContract(coreutil.CoreContractBlocklog, "Block log contract")
View Source 
var Processor = Contract.Processor(initialize,
	FuncGetBlockInfo.WithHandler(viewGetBlockInfo),
	FuncGetLatestBlockInfo.WithHandler(viewGetLatestBlockInfo),
	FuncGetRequestReceipt.WithHandler(viewGetRequestReceipt),
	FuncGetRequestReceiptsForBlock.WithHandler(viewGetRequestReceiptsForBlock),
	FuncGetRequestIDsForBlock.WithHandler(viewGetRequestIDsForBlock),
	FuncIsRequestProcessed.WithHandler(viewIsRequestProcessed),
	FuncControlAddresses.WithHandler(viewControlAddresses),
	FuncGetEventsForRequest.WithHandler(viewGetEventsForRequest),
	FuncGetEventsForBlock.WithHandler(viewGetEventsForBlock),
	FuncGetEventsForContract.WithHandler(viewGetEventsForContract),
)

Functions

func GetBlockEventsInternal 

func GetBlockEventsInternal(partition kv.KVStoreReader, blockIndex uint32) ([]string, error)

func GetRequestIDsForBlock 

func GetRequestIDsForBlock(stateReader state.OptimisticStateReader, blockIndex uint32) ([]iscp.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, reqid *iscp.RequestID) (bool, error)

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

func SaveControlAddressesIfNecessary 

func SaveControlAddressesIfNecessary(partition kv.KVStore, stateAddress, governingAddress ledgerstate.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 iscp.Hname) error

func SaveNextBlockInfo 

func SaveNextBlockInfo(partition kv.KVStore, blockInfo *BlockInfo) uint32

SaveNextBlockInfo appends block info and returns its index

func SaveRequestLogRecord 

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

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

Types

type BlockInfo 

type BlockInfo struct {
	BlockIndex            uint32 // not persistent. Set from key
	Timestamp             time.Time
	TotalRequests         uint16
	NumSuccessfulRequests uint16
	NumOffLedgerRequests  uint16
	PreviousStateHash     hashing.HashValue
}

func BlockInfoFromBytes 

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

func (*BlockInfo) Bytes 

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

func (*BlockInfo) Read 

func (bi *BlockInfo) Read(r io.Reader) error

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

func (*BlockInfo) Write 

func (bi *BlockInfo) Write(w io.Writer) error

type ControlAddresses 

type ControlAddresses struct {
	StateAddress     ledgerstate.Address
	GoverningAddress ledgerstate.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 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 iscp.RequestLookupDigest

func RequestLookupKeyListFromBytes 

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

func (RequestLookupKeyList) Bytes 

func (ll RequestLookupKeyList) Bytes() []byte

type RequestReceipt 

type RequestReceipt struct {
	Request iscp.Request
	Error   string
	// not persistent
	BlockIndex   uint32
	RequestIndex uint16
}

RequestReceipt represents log record of processed request on the chain

func RequestReceiptFromBytes 

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

func RequestReceiptFromMarshalutil 

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

func (*RequestReceipt) Bytes 

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

func (*RequestReceipt) Short 

func (r *RequestReceipt) Short() string

func (*RequestReceipt) String 

func (r *RequestReceipt) String() string

func (*RequestReceipt) WithBlockData 

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

Source Files

View all Source files

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