roysc/plugeth
1
0
Fork 0
forked from cerc-io/plugeth
Code Pull Requests Activity

trie: polish commit function (#21692)

Browse Source 
* trie: polish commit function

* trie: fix typo
This commit is contained in:
gary rong 2020-10-12 18:08:04 +08:00 committed by GitHub
parent 706f5e3b98
commit 86dd005544
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 19 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
trie/stacktrie.go
View File

@ -17,6 +17,7 @@
package trie
import (
"errors"
"fmt"
"sync"
@ -26,6 +27,8 @@ import (
"github.com/ethereum/go-ethereum/rlp"
)
var ErrCommitDisabled = errors.New("no database for committing")
var stPool = sync.Pool{
New: func() interface{} {
return NewStackTrie(nil)
@ -391,14 +394,18 @@ func (st *StackTrie) Hash() (h common.Hash) {
return common.BytesToHash(st.val)
}
// Commit will commit the current node to database db
func (st *StackTrie) Commit(db ethdb.KeyValueStore) common.Hash {
oldDb := st.db
st.db = db
defer func() {
st.db = oldDb
}()
// Commit will firstly hash the entrie trie if it's still not hashed
// and then commit all nodes to the associated database. Actually most
// of the trie nodes MAY have been committed already. The main purpose
// here is to commit the root node.
//
// The associated database is expected, otherwise the whole commit
// functionality should be disabled.
func (st *StackTrie) Commit() (common.Hash, error) {
if st.db == nil {
return common.Hash{}, ErrCommitDisabled
}
st.hash()
h := common.BytesToHash(st.val)
return h
return h, nil
}

5
trie/trie_test.go
View File

@ -831,7 +831,10 @@ func TestCommitSequenceStackTrie(t *testing.T) {
// Flush memdb -> disk (sponge)
db.Commit(root, false, nil)
// And flush stacktrie -> disk
stRoot := stTrie.Commit(stTrie.db)
stRoot, err := stTrie.Commit()
if err != nil {
t.Fatalf("Failed to commit stack trie %v", err)
}
if stRoot != root {
t.Fatalf("root wrong, got %x exp %x", stRoot, root)
}