Function NewDatabase

core/state/database.go:78–84

NewDatabase creates a backing store for state. The returned database is safe for concurrent use and retains cached trie nodes in memory. The pool is an optional intermediate trie-node memory pool between the low level storage layer and the high level trie abstraction.

(db database.Database)

// intermediate trie-node memory pool between the low level storage layer and the
// high level trie abstraction.
func NewDatabase(db database.Database) Database {
	csc, _ := lru.New(codeSizeCacheSize)
	return &cachingDB{
		db:            trie.NewDatabase(db),
		codeSizeCache: csc,
	}
}

type cachingDB struct {
	db            *trie.Database