protocol/store.go

   1 package protocol
   2
   3 import (
   4         "github.com/bytom/bytom/database/storage"
   5         "github.com/bytom/bytom/protocol/bc"
   6         "github.com/bytom/bytom/protocol/bc/types"
   7         "github.com/bytom/bytom/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         GetBlockHeader(*bc.Hash) (*types.BlockHeader, error)
  16         GetStoreStatus() *BlockStoreState
  17         GetTransactionsUtxo(*state.UtxoViewpoint, []*bc.Tx) error
  18         GetUtxo(*bc.Hash) (*storage.UtxoEntry, error)
  19         GetContract(hash [32]byte) ([]byte, error)
  20
  21         GetCheckpoint(*bc.Hash) (*state.Checkpoint, error)
  22         GetCheckpointsByHeight(uint64) ([]*state.Checkpoint, error)
  23         SaveCheckpoints(...*state.Checkpoint) error
  24
  25         LoadBlockIndex(uint64) (*state.BlockIndex, error)
  26         SaveBlock(*types.Block) error
  27         SaveChainStatus(*state.BlockNode, *state.UtxoViewpoint, *state.ContractViewpoint) error
  28 }
  29
  30 // BlockStoreState represents the core's db status
  31 type BlockStoreState struct {
  32         Height uint64
  33         Hash   *bc.Hash
  34 }