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Peer pruning

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This commit is contained in:
Sean Braithwaite
2019-07-19 02:17:49 +03:00
parent 5f84e3ecf5
commit 10ff7bd342
1 changed files with 26 additions and 8 deletions
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34
blockchain/v2/scheduler.go
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@ -380,9 +380,16 @@ func (sc *schedule) selectPeer(peers []*scPeer) *scPeer {
return peers[r.Intn(len(peers))]
}
func (sc *schedule) prunablePeers(time time.Time, minSpeed int) []p2p.ID {
// TODO
return []p2p.ID{}
// XXX: this duplicates the logic of peersInactiveSince and peersSlowerThan
func (sc *schedule) prunablePeers(peerTimout time.Duration, minRecvRate int64, now time.Time) []p2p.ID {
prunable := []p2p.ID{}
for peerID, peer := range sc.peers {
if now.Sub(peer.lastTouched) > peerTimout || peer.lastRate < minRecvRate {
prunable = append(prunable, peerID)
}
}
return prunable
}
func (sc *schedule) numBlockInState(targetState blockState) uint32 {
@ -399,12 +406,16 @@ type Scheduler struct {
sc *schedule
targetPending uint32 // the number of blocks we want in blockStatePending
targetReceived uint32 // the number of blocks we want in blockStateReceived
minRecvRate int64
peerTimeout time.Duration
}
func NewScheduler(minHeight int64, targetPending uint32, targetReceived uint32) *Scheduler {
func NewScheduler(minHeight int64, minRecvRate int64, peerTimeout time.Duration,
targetPending uint32, targetReceived uint32) *Scheduler {
return &Scheduler{
sc: newSchedule(minHeight),
minRecvRate: minRecvRate,
peerTimeout: peerTimeout,
targetPending: targetPending,
targetReceived: targetReceived,
}
@ -499,9 +510,16 @@ func (sdr *Scheduler) handleBlockProcessError(peerID p2p.ID, height int64) Event
return Skip{}
}
func (sdr *Scheduler) handleTimeCheck(peerID p2p.ID, now time.Time) interface{} {
// prune peers
// TODO
// XXX: Probably split this into two methods
// + handlePurgePeers
// + handleNextSchehedule
func (sdr *Scheduler) handleTimeCheck(now time.Time) interface{} {
prunablePeers := sdr.sc.prunablePeers(sdr.peerTimeout, sdr.minRecvRate, now)
for _, peerID := range prunablePeers {
// XXX: Emit these events
_ = sdr.sc.removePeer(peerID)
}
// produce new schedule
events := []scBlockRequestMessage{}