Merge pull request DNAProject#6 from laizy/hash_race_condition

fix block hash race condition
laizy · May 24, 2018 · bb93dc5 · bb93dc5
2 parents 52e2261 + 6247fe8
commit bb93dc5
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/core/ledger/block.go b/core/ledger/block.go
@@ -131,8 +131,8 @@ func (b *Block) GetPrograms() []*program.Program {
 
 func (b *Block) Hash() Uint256 {
 	if b.hash == nil {
-		b.hash = new(Uint256)
-		*b.hash = b.Blockdata.Hash()
+		hash = b.Blockdata.Hash()
+		b.hash = &hash
 	}
 	return *b.hash
 }