core, ethdb: reuse database batches (#15989)

* leveldb: Update leveldb to 211f780 (poolfix)

* core, ethdb: reuse database batches

1 files changed, 8 insertions, 0 deletions

diff --git a/ethdb/database.go b/ethdb/database.go
index 93755dd7e..9a7c85d9e 100644
--- a/ethdb/database.go
+++ b/ethdb/database.go
@@ -299,6 +299,10 @@ func (b *ldbBatch) ValueSize() int {
 	return b.size
 }
 
+func (b *ldbBatch) Reset() {
+	b.b.Reset()
+}
+
 type table struct {
 	db     Database
 	prefix string
@@ -358,3 +362,7 @@ func (tb *tableBatch) Write() error {
 func (tb *tableBatch) ValueSize() int {
 	return tb.batch.ValueSize()
 }
+
+func (tb *tableBatch) Reset() {
+	tb.batch.Reset()
+}