core, miner, tests: renamed state methods

* Update => SyncIntermediate
* Added SyncObjects

SyncIntermediate only updates whatever has changed, but, as a side
effect, requires much more disk space.

SyncObjects will only sync whatever is required for a block and will not
save intermediate state to disk. As drawback this requires more time
when more txs come in.

2 files changed, 5 insertions, 3 deletions

diff --git a/core/state/state_test.go b/core/state/state_test.go
index 00e133dab..b63b8ae9b 100644
--- a/core/state/state_test.go
+++ b/core/state/state_test.go
@@ -72,7 +72,7 @@ func TestNull(t *testing.T) {
 	//value := common.FromHex("0x823140710bf13990e4500136726d8b55")
 	var value common.Hash
 	state.SetState(address, common.Hash{}, value)
-	state.Update()
+	state.SyncIntermediate()
 	state.Sync()
 	value = state.GetState(address, common.Hash{})
 	if !common.EmptyHash(value) {
diff --git a/core/state/statedb.go b/core/state/statedb.go
index bd4ff6ff3..4ccda1fc7 100644
--- a/core/state/statedb.go
+++ b/core/state/statedb.go
@@ -324,7 +324,8 @@ func (self *StateDB) Refunds() *big.Int {
 	return self.refund
 }
 
-func (self *StateDB) Update() {
+// SyncIntermediate updates the intermediate state and all mid steps
+func (self *StateDB) SyncIntermediate() {
 	self.refund = new(big.Int)
 
 	for _, stateObject := range self.stateObjects {
@@ -341,7 +342,8 @@ func (self *StateDB) Update() {
 	}
 }
 
-func (self *StateDB) CleanUpdate() {
+// SyncObjects syncs the changed objects to the trie
+func (self *StateDB) SyncObjects() {
 	self.trie = trie.NewSecure(self.root[:], self.db)
 
 	self.refund = new(big.Int)