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les: add GetCheckpoint to LES--tidy comments, rename fn

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This commit is contained in:
pacamara 2017-12-14 12:32:32 +00:00
parent aab305de87
commit e5efdebfdf
3 changed files with 7 additions and 11 deletions
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6
les/odr_requests.go
View file

@ -545,9 +545,7 @@ func (r *BloomRequest) Validate(db ethdb.Database, msg *Msg) error {
return nil
}
///////////////////////////////////////////////////////////////////////////////////////////
// status.im request 320
// For status.im request 320
type CheckpointReq struct {
SectionIdx uint64
}
@ -598,8 +596,6 @@ func (r *CheckpointRequest) Validate(db ethdb.Database, msg *Msg) error {
return nil
}
///////////////////////////////////////////////////////////////////////////////////////////////
// readTraceDB stores the keys of database reads. We use this to check that received node
// sets contain only the trie nodes necessary to make proofs pass.
type readTraceDB struct {

2
les/peer.go
View file

@ -325,7 +325,7 @@ func (p *peer) SendTxs(reqID, cost uint64, txs types.Transactions) error {
}
}
// RequestCheckpoint a checkpoint at the specified section index from a remote node.
// RequestCheckpoint requests a checkpoint at the specified section index from a remote node.
func (p *peer) RequestCheckpoint(reqID, cost uint64, req CheckpointReq) error {
p.Log().Debug("Fetching checkpoint", "req", req, "p.version", p.version, "lpv1", lpv1)
switch p.version {

10
les/sync.go
View file

@ -81,19 +81,19 @@ func (pm *ProtocolManager) synchronise(peer *peer) {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
updateChtFromPeer(pm, peer, ctx)
updateCheckpointFromPeer(pm, peer, ctx)
pm.blockchain.(*light.LightChain).SyncCht(ctx)
pm.downloader.Synchronise(peer.id, peer.Head(), peer.Td(), downloader.LightSync)
}
// Status.im issue 320: Use GetHeaderProofs to download the latest CHT from a peer.
func updateChtFromPeer(pm *ProtocolManager, peer *peer, ctx context.Context) {
log.Info("Downloading latest CHT root from peer", "peer.headBlockInfo", peer.headBlockInfo())
// Status.im issue 320: Use GetCheckpoint to download the latest checkpoint from a peer.
func updateCheckpointFromPeer(pm *ProtocolManager, peer *peer, ctx context.Context) {
log.Info("Downloading latest checkpoint from peer", "peer.headBlockInfo", peer.headBlockInfo())
// Formula from lightchain.go:SyncCht: num := cht.Number*ChtFrequency – 1
var hbl = peer.headBlockInfo()
var peerHeadBlockNum = hbl.Number
log.Debug("UpdateChtFromPeer", "peerHeadBlockNum", peerHeadBlockNum)
log.Debug("updateCheckpointFromPeer", "peerHeadBlockNum", peerHeadBlockNum)
var sectionIdx uint64 = ((peerHeadBlockNum + 1) / light.ChtFrequency) - 1
log.Debug("Retrieving checkpoint with: ", "sectionIdx", sectionIdx)