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trie: allow RHS commit

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This commit is contained in:
Martin Holst Swende 2023-10-10 09:07:23 +02:00
parent fcd719186c
commit 34faed3cf0
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GPG key ID: 683B438C05A5DDF0
2 changed files with 30 additions and 25 deletions
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2
eth/protocols/snap/sync.go
View file

@ -2096,7 +2096,7 @@ func (s *Syncer) processStorageResponse(res *storageResponse) {
// on the fly to not trash the gluing points
if i == len(res.hashes)-1 && res.subTask != nil {
res.subTask.genTrie.AddProof(res.roots[i], res.origin[:], res.proof)
res.subTask.genTrie.UpdateAll(res.hashes[i], res.slots[i])
res.subTask.genTrie.UpdateAll(res.hashes[i], res.slots[i], res.cont)
}
// Persist the received storage segments. These flat state maybe
// outdated during the sync, but it can be fixed later during the

41
trie/stackproof.go
View file

@ -421,36 +421,32 @@ type GenerativeTrie struct {
writeFn NodeWriteFunc
stack *StackTrie
leftHandBorder []byte
rightHandBorder []byte
}
func NewGentrie(origin, end common.Hash, writeFn NodeWriteFunc) *GenerativeTrie {
var g = &GenerativeTrie{}
if origin == (common.Hash{}) {
// This gentrie has zero-origin: this means no right-side proof is used,
// and thus we do not need to wrap the write-function.
g.writeFn = func(path []byte, hash common.Hash, blob []byte) {
writeFn(path, hash, blob)
}
g.stack = NewStackTrie(g.writeFn)
} else {
// Wrap the write function
var originBorder = keybytesToHex(origin[:])
wrapper := func(path []byte, hash common.Hash, blob []byte) {
if bytes.HasPrefix(originBorder, path) {
//fmt.Printf("1. Skipping path %x\n", path)
if g.leftHandBorder != nil && bytes.HasPrefix(g.leftHandBorder, path) {
return
}
if bytes.HasPrefix(g.rightHandBorder, path) {
//fmt.Printf("2. Skipping path %x\n", path)
if g.rightHandBorder != nil && bytes.HasPrefix(g.rightHandBorder, path) {
return
}
writeFn(path, hash, blob)
}
// If origin is non-zero, we can set the left hand border right away.
if origin != (common.Hash{}) {
g.leftHandBorder = keybytesToHex(origin[:])
} else {
// If origin is zero. then no proof-init will be needed, and we can
// set the internal stacktrie.
g.stack = NewStackTrie(writeFn)
}
g.writeFn = wrapper
}
return g
}
@ -467,15 +463,24 @@ func (g *GenerativeTrie) AddProof(rootHash common.Hash, origin []byte, proof eth
}
}
func (g *GenerativeTrie) UpdateAll(keys []common.Hash, values [][]byte) error {
func (g *GenerativeTrie) UpdateAll(keys []common.Hash, values [][]byte, hasMore bool) error {
if len(keys) == 0 {
return nil
}
last := keys[len(keys)-1]
// If the trie has more elements, then we can (for now) set the right-hand
// border: in case Commit or Hash is called, having the border set prevents
// nodes on the boundary from being comitted.
if hasMore {
g.rightHandBorder = keybytesToHex(last[:])
} else {
// If we know that all elements have been inserted, we must remove
// the border, and let the nodes be comitted.
g.rightHandBorder = nil
}
for i := 0; i < len(keys); i++ {
g.stack.Update(keys[i][:], values[i])
}
last := keys[len(keys)-1]
g.rightHandBorder = keybytesToHex(last[:])
return nil
}