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state: track code dirtyness and only write if changed

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This commit is contained in:
Péter Szilágyi 2016-09-23 08:57:51 +03:00
parent 8fbdde5491
commit 3c26ba4d30
2 changed files with 8 additions and 5 deletions
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10
core/state/state_object.go
View file

@ -82,9 +82,10 @@ type StateObject struct {
// Cache flags.
// When an object is marked for deletion it will be delete from the trie
// during the "update" phase of the state transition
dirty bool // true if anything has changed
remove bool
deleted bool
dirty bool // true if anything has changed
dirtyCode bool // true if the code was updated
remove bool
deleted bool
}
// Account is the Ethereum consensus representation of accounts.
@ -238,6 +239,7 @@ func (self *StateObject) Copy(db trie.Database) *StateObject {
stateObject.storage = self.storage.Copy()
stateObject.remove = self.remove
stateObject.dirty = self.dirty
stateObject.dirtyCode = self.dirtyCode
stateObject.deleted = self.deleted
return stateObject
}
@ -270,7 +272,7 @@ func (self *StateObject) Code(db trie.Database) []byte {
func (self *StateObject) SetCode(code []byte) {
self.code = code
self.data.CodeHash = crypto.Keccak256(code)
self.dirty = true
self.dirty, self.dirtyCode = true, true
}
func (self *StateObject) SetNonce(nonce uint64) {

3
core/state/statedb.go
View file

@ -447,10 +447,11 @@ func (s *StateDB) commit(dbw trie.DatabaseWriter) (root common.Hash, err error)
delete(s.all, addr)
} else if stateObject.dirty {
// Write any contract code associated with the state object
if stateObject.code != nil {
if stateObject.code != nil && stateObject.dirtyCode {
if err := dbw.Put(stateObject.CodeHash(), stateObject.code); err != nil {
return common.Hash{}, err
}
stateObject.dirtyCode = false
}
// Write any storage changes in the state object to its storage trie.
if err := stateObject.CommitTrie(s.db, dbw); err != nil {