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p2p/discover: schedule revalidation also when all nodes are excluded #30239

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merged 2 commits into from
Jul 31, 2024
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p2p/discover: schedule revalidation also when all nodes are excluded #30239

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fix(disc): schedule revalidation also when all nodes are excluded
dknopik Jul 29, 2024
9ade71a
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dknopik Jul 30, 2024
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20 changes: 12 additions & 8 deletions p2p/discover/table_reval.go
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Original file line number Diff line number Diff line change
Expand Up @@ -77,14 +77,18 @@ func (tr *tableRevalidation) nodeEndpointChanged(tab *Table, n *tableNode) {
// It returns the next time it should be invoked, which is used in the Table main loop
// to schedule a timer. However, run can be called at any time.
func (tr *tableRevalidation) run(tab *Table, now mclock.AbsTime) (nextTime mclock.AbsTime) {
if n := tr.fast.get(now, &tab.rand, tr.activeReq); n != nil {
tr.startRequest(tab, n)
tr.fast.schedule(now, &tab.rand)
}
if n := tr.slow.get(now, &tab.rand, tr.activeReq); n != nil {
tr.startRequest(tab, n)
tr.slow.schedule(now, &tab.rand)
reval := func(list *revalidationList) {
if list.nextTime <= now {
if n := list.get(now, &tab.rand, tr.activeReq); n != nil {
tr.startRequest(tab, n)
}
// Update nextTime regardless if any requests were started because
// current value has passed.
list.schedule(now, &tab.rand)
}
}
reval(&tr.fast)
reval(&tr.slow)

return min(tr.fast.nextTime, tr.slow.nextTime)
}
Expand Down Expand Up @@ -200,7 +204,7 @@ type revalidationList struct {

// get returns a random node from the queue. Nodes in the 'exclude' map are not returned.
func (list *revalidationList) get(now mclock.AbsTime, rand randomSource, exclude map[enode.ID]struct{}) *tableNode {
if now < list.nextTime || len(list.nodes) == 0 {
if len(list.nodes) == 0 {
return nil
}
for i := 0; i < len(list.nodes)*3; i++ {
Expand Down