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         CheckpointsFromNode(height uint64, hash *bc.Hash) ([]*state.Checkpoint, error)
  23         GetCheckpointsByHeight(uint64) ([]*state.Checkpoint, error)
  24         SaveCheckpoints([]*state.Checkpoint) error
  25
  26         LoadBlockIndex(uint64) (*state.BlockIndex, error)
  27         SaveBlock(*types.Block) error
  28         SaveBlockHeader(*types.BlockHeader) error
  29         SaveChainStatus(*state.BlockNode, *state.UtxoViewpoint, *state.ContractViewpoint, []*state.Checkpoint, uint64, *bc.Hash) error
  30 }
  31
  32 // BlockStoreState represents the core's db status
  33 type BlockStoreState struct {
  34         Height          uint64
  35         Hash            *bc.Hash
  36         FinalizedHeight uint64
  37         FinalizedHash   *bc.Hash
  38 }