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cmd, core/state, eth, tests, trie: improve state reader (#27428)

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The state availability is checked during the creation of a state reader.

-    In hash-based database, if the specified root node does not exist on disk disk, then
    the state reader won't be created and an error will be returned.

-    In path-based database, if the specified state layer is not available, then the
    state reader won't be created and an error will be returned.

This change also contains a stricter semantics regarding the `Commit` operation: once it has been performed, the trie is no longer usable, and certain operations will return an error.
This commit is contained in:
rjl493456442
2023-06-20 15:31:45 -04:00
committed by GitHub
parent 8c288b528d
commit 6d2aeb43d5
32 changed files with 384 additions and 151 deletions
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core/state/state_test.go
+8 -4
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@@ -43,7 +43,8 @@ func newStateTest() *stateTest {
func TestDump(t *testing.T) {
db := rawdb.NewMemoryDatabase()
sdb, _ := New(types.EmptyRootHash, NewDatabaseWithConfig(db, &trie.Config{Preimages: true}), nil)
tdb := NewDatabaseWithConfig(db, &trie.Config{Preimages: true})
sdb, _ := New(types.EmptyRootHash, tdb, nil)
s := &stateTest{db: db, state: sdb}
// generate a few entries
@@ -57,9 +58,10 @@ func TestDump(t *testing.T) {
// write some of them to the trie
s.state.updateStateObject(obj1)
s.state.updateStateObject(obj2)
s.state.Commit(false)
root, _ := s.state.Commit(false)
// check that DumpToCollector contains the state objects that are in trie
s.state, _ = New(root, tdb, nil)
got := string(s.state.Dump(nil))
want := `{
"root": "71edff0130dd2385947095001c73d9e28d862fc286fca2b922ca6f6f3cddfdd2",
@@ -95,7 +97,8 @@ func TestDump(t *testing.T) {
func TestIterativeDump(t *testing.T) {
db := rawdb.NewMemoryDatabase()
sdb, _ := New(types.EmptyRootHash, NewDatabaseWithConfig(db, &trie.Config{Preimages: true}), nil)
tdb := NewDatabaseWithConfig(db, &trie.Config{Preimages: true})
sdb, _ := New(types.EmptyRootHash, tdb, nil)
s := &stateTest{db: db, state: sdb}
// generate a few entries
@@ -111,7 +114,8 @@ func TestIterativeDump(t *testing.T) {
// write some of them to the trie
s.state.updateStateObject(obj1)
s.state.updateStateObject(obj2)
s.state.Commit(false)
root, _ := s.state.Commit(false)
s.state, _ = New(root, tdb, nil)
b := &bytes.Buffer{}
s.state.IterativeDump(nil, json.NewEncoder(b))