indexing

package
v0.5.1-rc4 Latest Latest
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 Go to latest Published: Mar 16, 2022 License: MIT Imports: 11 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var ErrReachedChainEnd = errors.New("reached the end of the chain")
View Source 
var ErrReachedChainStart = errors.New("reached the start of the chain")

Functions

func SearchIndexChain added in v0.5.1 

func SearchIndexChain(chain *database.Chain, index uint64, find IndexChainSearchFunction) (uint64, *protocol.IndexEntry, error)

SearchIndexChain searches along an index chain using the given search function. The search starts from the given index and proceeds forwards or backwards along the chain depending on the result of the search function.

Types

type BlockStateIndex 

type BlockStateIndex struct {
	ProducedSynthTxns []*BlockStateSynthTxnEntry `json:"producedSynthTxns,omitempty" form:"producedSynthTxns" query:"producedSynthTxns" validate:"required"`
	// contains filtered or unexported fields
}

func (*BlockStateIndex) Equal 

func (v *BlockStateIndex) Equal(u *BlockStateIndex) bool

func (*BlockStateIndex) IsValid 

func (v *BlockStateIndex) IsValid() error

func (*BlockStateIndex) MarshalBinary 

func (v *BlockStateIndex) MarshalBinary() ([]byte, error)

func (*BlockStateIndex) UnmarshalBinary 

func (v *BlockStateIndex) UnmarshalBinary(data []byte) error

func (*BlockStateIndex) UnmarshalBinaryFrom 

func (v *BlockStateIndex) UnmarshalBinaryFrom(rd io.Reader) error

type BlockStateIndexer 

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

BlockStateIndexer tracks transient state for a block.

func BlockState 

func BlockState(batch *database.Batch, ledger *url.URL) *BlockStateIndexer

BlockState returns a block state indexer.

func (*BlockStateIndexer) Clear 

func (x *BlockStateIndexer) Clear() error

Clear resets the block state.

func (*BlockStateIndexer) DidProduceSynthTxn 

func (x *BlockStateIndexer) DidProduceSynthTxn(entry *BlockStateSynthTxnEntry) error

DidProduceSynthTxn records a produced synthetic transaction.

func (*BlockStateIndexer) Get 

func (x *BlockStateIndexer) Get() (*BlockStateIndex, error)

Get loads the block state.

type BlockStateSynthTxnEntry 

type BlockStateSynthTxnEntry struct {
	Transaction []byte `json:"transaction,omitempty" form:"transaction" query:"transaction" validate:"required"`
	ChainEntry  uint64 `json:"chainEntry,omitempty" form:"chainEntry" query:"chainEntry" validate:"required"`
	// contains filtered or unexported fields
}

func (*BlockStateSynthTxnEntry) Equal 

func (v *BlockStateSynthTxnEntry) Equal(u *BlockStateSynthTxnEntry) bool

func (*BlockStateSynthTxnEntry) IsValid 

func (v *BlockStateSynthTxnEntry) IsValid() error

func (*BlockStateSynthTxnEntry) MarshalBinary 

func (v *BlockStateSynthTxnEntry) MarshalBinary() ([]byte, error)

func (*BlockStateSynthTxnEntry) MarshalJSON 

func (v *BlockStateSynthTxnEntry) MarshalJSON() ([]byte, error)

func (*BlockStateSynthTxnEntry) UnmarshalBinary 

func (v *BlockStateSynthTxnEntry) UnmarshalBinary(data []byte) error

func (*BlockStateSynthTxnEntry) UnmarshalBinaryFrom 

func (v *BlockStateSynthTxnEntry) UnmarshalBinaryFrom(rd io.Reader) error

func (*BlockStateSynthTxnEntry) UnmarshalJSON 

func (v *BlockStateSynthTxnEntry) UnmarshalJSON(data []byte) error

type IndexChainSearchFunction added in v0.5.1 

type IndexChainSearchFunction func(*protocol.IndexEntry) SearchDirection

IndexChainSearchFunction determines the direction an index chain search should proceed.

func SearchIndexChainByAnchorBounds added in v0.5.1 

func SearchIndexChainByAnchorBounds(lowerBound, upperBound uint64) IndexChainSearchFunction

SearchIndexChainByAnchorBounds returns a search function that searches an index chain for an entry with an anchor in the given bounds (inclusive).

func SearchIndexChainByBlock added in v0.5.1 

func SearchIndexChainByBlock(blockIndex uint64) IndexChainSearchFunction

SearchIndexChainByBlock returns a search function that searches an index chain for the given block index.

type PendingTransactionsIndex 

type PendingTransactionsIndex struct {
	Transactions [][32]byte `json:"transactions,omitempty" form:"transactions" query:"transactions" validate:"required"`
	// contains filtered or unexported fields
}

func (*PendingTransactionsIndex) Equal 

func (v *PendingTransactionsIndex) Equal(u *PendingTransactionsIndex) bool

func (*PendingTransactionsIndex) IsValid 

func (v *PendingTransactionsIndex) IsValid() error

func (*PendingTransactionsIndex) MarshalBinary 

func (v *PendingTransactionsIndex) MarshalBinary() ([]byte, error)

func (*PendingTransactionsIndex) MarshalJSON 

func (v *PendingTransactionsIndex) MarshalJSON() ([]byte, error)

func (*PendingTransactionsIndex) UnmarshalBinary 

func (v *PendingTransactionsIndex) UnmarshalBinary(data []byte) error

func (*PendingTransactionsIndex) UnmarshalBinaryFrom 

func (v *PendingTransactionsIndex) UnmarshalBinaryFrom(rd io.Reader) error

func (*PendingTransactionsIndex) UnmarshalJSON 

func (v *PendingTransactionsIndex) UnmarshalJSON(data []byte) error

type PendingTransactionsIndexer 

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

PendingTransactionsIndexer indexes pending transactions of an account.

func PendingTransactions 

func PendingTransactions(batch *database.Batch, account *url.URL) *PendingTransactionsIndexer

PendingTransactions returns a pending transactions indexer.

func (*PendingTransactionsIndexer) Add 

func (x *PendingTransactionsIndexer) Add(txid [32]byte) error

Add adds a transaction to the list of pending transactions, if it is not already on the list.

func (*PendingTransactionsIndexer) Get 

func (x *PendingTransactionsIndexer) Get() ([][32]byte, error)

Get loads the list of pending transactions.

func (*PendingTransactionsIndexer) Remove 

func (x *PendingTransactionsIndexer) Remove(txid [32]byte) error

Remove removes a transaction from the list of pending transactions, if it is on the list.

type SearchDirection added in v0.5.1 

type SearchDirection int

SearchDirection represents a direction to search along a linear index. 

const (
	// SearchComplete is returned when the search is complete.
	SearchComplete SearchDirection = iota
	// SearchForward is returned when the search should proceed forwards along
	// the index.
	SearchForward
	// SearchBackward is returned when the search should proceed backwards along
	// the index.
	SearchBackward
)

type TransactionChainEntry 

type TransactionChainEntry struct {
	Account *url.URL `json:"account,omitempty" form:"account" query:"account" validate:"required"`
	// Chain is the name of the chain.
	Chain string `json:"chain,omitempty" form:"chain" query:"chain" validate:"required"`
	// ChainIndex is the index of the entry in the chain's index chain.
	ChainIndex uint64 `json:"chainIndex,omitempty" form:"chainIndex" query:"chainIndex" validate:"required"`
	// AnchorIndex is the index of the entry in the anchor chain's index chain.
	AnchorIndex uint64 `json:"anchorIndex,omitempty" form:"anchorIndex" query:"anchorIndex" validate:"required"`
	// contains filtered or unexported fields
}

func (*TransactionChainEntry) Equal 

func (v *TransactionChainEntry) Equal(u *TransactionChainEntry) bool

func (*TransactionChainEntry) IsValid 

func (v *TransactionChainEntry) IsValid() error

func (*TransactionChainEntry) MarshalBinary 

func (v *TransactionChainEntry) MarshalBinary() ([]byte, error)

func (*TransactionChainEntry) UnmarshalBinary 

func (v *TransactionChainEntry) UnmarshalBinary(data []byte) error

func (*TransactionChainEntry) UnmarshalBinaryFrom 

func (v *TransactionChainEntry) UnmarshalBinaryFrom(rd io.Reader) error

type TransactionChainIndex 

type TransactionChainIndex struct {
	Entries []*TransactionChainEntry `json:"entries,omitempty" form:"entries" query:"entries" validate:"required"`
	// contains filtered or unexported fields
}

func (*TransactionChainIndex) Equal 

func (v *TransactionChainIndex) Equal(u *TransactionChainIndex) bool

func (*TransactionChainIndex) IsValid 

func (v *TransactionChainIndex) IsValid() error

func (*TransactionChainIndex) MarshalBinary 

func (v *TransactionChainIndex) MarshalBinary() ([]byte, error)

func (*TransactionChainIndex) UnmarshalBinary 

func (v *TransactionChainIndex) UnmarshalBinary(data []byte) error

func (*TransactionChainIndex) UnmarshalBinaryFrom 

func (v *TransactionChainIndex) UnmarshalBinaryFrom(rd io.Reader) error

type TransactionChainIndexer 

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

TransactionChainIndexer indexes account chains against a transaction.

func TransactionChain 

func TransactionChain(batch *database.Batch, txid []byte) *TransactionChainIndexer

TransactionChain returns a transaction chain indexer.

func (*TransactionChainIndexer) Add 

func (t *TransactionChainIndexer) Add(entry *TransactionChainEntry) error

Add adds a new entry to the index.

func (*TransactionChainIndexer) Get 

func (t *TransactionChainIndexer) Get() (*TransactionChainIndex, error)

Get loads and unmarshals the index. Get returns an empty index if it has not been defined.

Source Files

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