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p2p/enode: implement dynamic FairMix timeouts

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This commit is contained in:
Felix Lange 2019-10-29 13:31:23 +01:00
parent 70360e25fe
commit 4387dcd2a8
1 changed files with 6 additions and 3 deletions
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9
p2p/enode/iter.go
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@ -144,8 +144,9 @@ type FairMix struct {
}
type mixSource struct {
it Iterator
next chan *Node
it Iterator
next chan *Node
timeout time.Duration
}
// NewFairMix creates a mixer.
@ -172,7 +173,7 @@ func (m *FairMix) AddSource(it Iterator) {
return
}
m.wg.Add(1)
source := &mixSource{it, make(chan *Node)}
source := &mixSource{it, make(chan *Node), m.timeout}
m.sources = append(m.sources, source)
go m.runSource(m.closed, source)
}
@ -215,11 +216,13 @@ func (m *FairMix) Next() bool {
case n, ok := <-source.next:
if ok {
m.cur = n
source.timeout = m.timeout
return true
}
// This source has ended.
m.deleteSource(source)
case <-timeout:
source.timeout /= 2
return m.nextFromAny()
}
}