diff options
Diffstat (limited to 'core/blockchain.go')
| -rw-r--r-- | core/blockchain.go | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/core/blockchain.go b/core/blockchain.go index 950804d40..888c98dce 100644 --- a/core/blockchain.go +++ b/core/blockchain.go @@ -778,6 +778,14 @@ func (self *BlockChain) WriteBlock(block *types.Block) (status WriteStatus, err localTd := self.GetTd(self.currentBlock.Hash(), self.currentBlock.NumberU64()) externTd := new(big.Int).Add(block.Difficulty(), ptd) + // Irrelevant of the canonical status, write the block itself to the database + if err := self.hc.WriteTd(block.Hash(), block.NumberU64(), externTd); err != nil { + glog.Fatalf("failed to write block total difficulty: %v", err) + } + if err := WriteBlock(self.chainDb, block); err != nil { + glog.Fatalf("failed to write block contents: %v", err) + } + // If the total difficulty is higher than our known, add it to the canonical chain // Second clause in the if statement reduces the vulnerability to selfish mining. // Please refer to http://www.cs.cornell.edu/~ie53/publications/btcProcFC.pdf @@ -788,19 +796,11 @@ func (self *BlockChain) WriteBlock(block *types.Block) (status WriteStatus, err return NonStatTy, err } } - // Insert the block as the new head of the chain - self.insert(block) + self.insert(block) // Insert the block as the new head of the chain status = CanonStatTy } else { status = SideStatTy } - // Irrelevant of the canonical status, write the block itself to the database - if err := self.hc.WriteTd(block.Hash(), block.NumberU64(), externTd); err != nil { - glog.Fatalf("failed to write block total difficulty: %v", err) - } - if err := WriteBlock(self.chainDb, block); err != nil { - glog.Fatalf("failed to write block contents: %v", err) - } self.futureBlocks.Remove(block.Hash()) |