diff options
Diffstat (limited to 'trie/database.go')
| -rw-r--r-- | trie/database.go | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/trie/database.go b/trie/database.go index 8675b9f0a..d0691b637 100644 --- a/trie/database.go +++ b/trie/database.go @@ -51,7 +51,7 @@ const secureKeyLength = 11 + 32 // DatabaseReader wraps the Get and Has method of a backing store for the trie. type DatabaseReader interface { - // Get retrieves the value associated with key form the database. + // Get retrieves the value associated with key from the database. Get(key []byte) (value []byte, err error) // Has retrieves whether a key is present in the database. @@ -431,6 +431,11 @@ func (db *Database) reference(child common.Hash, parent common.Hash) { // Dereference removes an existing reference from a root node. func (db *Database) Dereference(root common.Hash) { + // Sanity check to ensure that the meta-root is not removed + if root == (common.Hash{}) { + log.Error("Attempted to dereference the trie cache meta root") + return + } db.lock.Lock() defer db.lock.Unlock() |