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les: simplify requesting/syncing logic

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This commit is contained in:
Zsolt Felfoldi 2019-05-17 11:36:08 +02:00
parent 70ff967f7a
commit e40fe2117b
1 changed files with 5 additions and 10 deletions
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15
les/fetcher.go
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@ -55,7 +55,7 @@ type lightFetcher struct {
requested map[uint64]fetchRequest
deliverChn chan fetchResponse
timeoutChn chan uint64
requesting bool
requestTriggered bool
requestTrigger chan struct{}
lastTrustedHeader *types.Header
}
@ -152,14 +152,13 @@ func (f *lightFetcher) syncLoop() {
if !f.syncing {
rq, reqID, syncing = f.nextRequest()
}
f.requesting = rq != nil
f.requestTriggered = rq != nil
f.lock.Unlock()
if rq != nil {
if _, ok := <-f.pm.reqDist.queue(rq); ok {
if syncing {
f.lock.Lock()
f.requesting = false
f.syncing = true
f.lock.Unlock()
} else {
@ -216,12 +215,8 @@ func (f *lightFetcher) syncLoop() {
p.Log().Debug("Done synchronising with peer")
f.checkSyncedHeaders(p)
f.syncing = false
r := f.requesting
f.requesting = true
f.lock.Unlock()
if !r {
f.requestTrigger <- struct{}{}
}
f.requestTrigger <- struct{}{} // f.requestTriggered is always true here
}
}
}
@ -355,8 +350,8 @@ func (f *lightFetcher) announce(p *peer, head *announceData) {
fp.lastAnnounced = n
p.lock.Unlock()
f.checkUpdateStats(p, nil)
if !f.requesting {
f.requesting = true
if !f.requestTriggered {
f.requestTriggered = true
f.requestTrigger <- struct{}{}
}
}