block.go 1.1 KB

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  1. // Copyright 2014 The go-ethereum Authors
  2. // This file is part of go-ethereum.
  3. //
  4. // go-ethereum is free software: you can redistribute it and/or modify
  5. // it under the terms of the GNU Lesser General Public License as published by
  6. // the Free Software Foundation, either version 3 of the License, or
  7. // (at your option) any later version.
  8. //
  9. // go-ethereum is distributed in the hope that it will be useful,
  10. // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. // GNU Lesser General Public License for more details.
  13. //
  14. // You should have received a copy of the GNU Lesser General Public License
  15. // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
  16. package pow
  17. import (
  18. "math/big"
  19. "github.com/ethereum/go-ethereum/common"
  20. "github.com/ethereum/go-ethereum/core/types"
  21. )
  22. type Block interface {
  23. Difficulty() *big.Int
  24. HashNoNonce() common.Hash
  25. Nonce() uint64
  26. MixDigest() common.Hash
  27. NumberU64() uint64
  28. }
  29. type ChainManager interface {
  30. GetBlockByNumber(uint64) *types.Block
  31. CurrentBlock() *types.Block
  32. }