protocol/store.go

   1 package protocol
   2
   3 import (
   4         "github.com/vapor/database/storage"
   5         "github.com/vapor/protocol/bc"
   6         "github.com/vapor/protocol/bc/types"
   7         "github.com/vapor/protocol/state"
   8 )
   9
  10 // Store provides storage interface for blockchain data
  11 type Store interface {
  12         BlockExist(*bc.Hash) bool
  13
  14         GetBlock(*bc.Hash) (*types.Block, error)
  15         GetStoreStatus() *BlockStoreState
  16         GetTransactionStatus(*bc.Hash) (*bc.TransactionStatus, error)
  17         GetTransactionsUtxo(*state.UtxoViewpoint, []*bc.Tx) error
  18         GetUtxo(*bc.Hash) (*storage.UtxoEntry, error)
  19
  20         LoadBlockIndex(uint64) (*state.BlockIndex, error)
  21         SaveBlock(*types.Block, *bc.TransactionStatus) error
  22         SaveChainStatus(*state.BlockNode, *state.UtxoViewpoint) error
  23
  24         IsWithdrawSpent(hash *bc.Hash) bool
  25         SetWithdrawSpent(hash *bc.Hash)
  26 }
  27
  28 // BlockStoreState represents the core's db status
  29 type BlockStoreState struct {
  30         Height uint64
  31         Hash   *bc.Hash
  32 }