diff options
Diffstat (limited to 'core/blockchain.go')
| -rw-r--r-- | core/blockchain.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/core/blockchain.go b/core/blockchain.go index 3eee75df7..bf1bbe6cb 100644 --- a/core/blockchain.go +++ b/core/blockchain.go @@ -1005,6 +1005,10 @@ func (bc *BlockChain) InsertChain(chain types.Blocks) (int, error) { // only reason this method exists as a separate one is to make locking cleaner // with deferred statements. func (bc *BlockChain) insertChain(chain types.Blocks) (int, []interface{}, []*types.Log, error) { + // Sanity check that we have something meaningful to import + if len(chain) == 0 { + return 0, nil, nil, nil + } // Do a sanity check that the provided chain is actually ordered and linked for i := 1; i < len(chain); i++ { if chain[i].NumberU64() != chain[i-1].NumberU64()+1 || chain[i].ParentHash() != chain[i-1].Hash() { @@ -1043,6 +1047,9 @@ func (bc *BlockChain) insertChain(chain types.Blocks) (int, []interface{}, []*ty abort, results := bc.engine.VerifyHeaders(bc, headers, seals) defer close(abort) + // Start a parallel signature recovery (signer will fluke on fork transition, minimal perf loss) + senderCacher.recoverFromBlocks(types.MakeSigner(bc.chainConfig, chain[0].Number()), chain) + // Iterate over the blocks and insert when the verifier permits for i, block := range chain { // If the chain is terminating, stop processing blocks |