topicsdb

Documentation

Index

• Constants
• Variables
• type ID
  • func NewID(block uint64, tx common.Hash, logIndex uint) (id ID)
  • func (id *ID) BlockNumber() uint64
  • func (id *ID) Bytes() []byte
  • func (id *ID) Index() uint
  • func (id *ID) TxHash() (tx common.Hash)
• type Index
  • func New(db kvdb.KeyValueStore) *Index
  • func (tt *Index) Find(topics [][]common.Hash) ([]*types.Log, error)
  • func (tt *Index) MustPush(recs ...*types.Log)
  • func (tt *Index) Push(recs ...*types.Log) error

Constants

const MaxCount = 0xff

Variables

var ErrTooManyTopics = fmt.Errorf("Too many topics")

Types

type ID

type ID [logrecKeySize]byte

ID of log record

func NewID

func NewID(block uint64, tx common.Hash, logIndex uint) (id ID)

func (*ID) BlockNumber

func (id *ID) BlockNumber() uint64

func (*ID) Bytes

func (id *ID) Bytes() []byte

func (*ID) Index

func (id *ID) Index() uint

func (*ID) TxHash

func (id *ID) TxHash() (tx common.Hash)

type Index

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

Index is a specialized indexes for log records storing and fetching.

func New

func New(db kvdb.KeyValueStore) *Index

New TopicsDb instance.

func (*Index) Find

func (tt *Index) Find(topics [][]common.Hash) ([]*types.Log, error)

Find log records by conditions.

func (*Index) MustPush

func (tt *Index) MustPush(recs ...*types.Log)

MustPush calls Push() and panics if error.

func (*Index) Push

func (tt *Index) Push(recs ...*types.Log) error

Push log record to database.