protocol/store.go

   1 package protocol
   2
   3 import (
   4         "errors"
   5
   6         "github.com/vapor/database/storage"
   7         "github.com/vapor/protocol/bc"
   8         "github.com/vapor/protocol/bc/types"
   9         "github.com/vapor/protocol/state"
  10 )
  11
  12 var (
  13         ErrNotFoundVoteResult = errors.New("can't find the vote result by given sequence")
  14 )
  15
  16 // Store provides storage interface for blockchain data
  17 type Store interface {
  18         BlockExist(*bc.Hash) bool
  19
  20         GetBlock(*bc.Hash) (*types.Block, error)
  21         GetStoreStatus() *BlockStoreState
  22         GetTransactionStatus(*bc.Hash) (*bc.TransactionStatus, error)
  23         GetTransactionsUtxo(*state.UtxoViewpoint, []*bc.Tx) error
  24         GetUtxo(*bc.Hash) (*storage.UtxoEntry, error)
  25         GetVoteResult(uint64) (*state.VoteResult, error)
  26
  27         LoadBlockIndex(uint64) (*state.BlockIndex, error)
  28         SaveBlock(*types.Block, *bc.TransactionStatus) error
  29         SaveChainStatus(*state.BlockNode, *state.BlockNode, *state.UtxoViewpoint, map[uint64]*state.VoteResult) error
  30 }
  31
  32 // BlockStoreState represents the core's db status
  33 type BlockStoreState struct {
  34         Height             uint64
  35         Hash               *bc.Hash
  36         IrreversibleHeight uint64
  37         IrreversibleHash   *bc.Hash
  38 }