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derp: fix flaky shuffle test (#2772)

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This commit is contained in:
Kristoffer Dalby
2025-09-11 15:49:02 +02:00
committed by GitHub
parent c91b9fc761
commit 7056fbb63b
2 changed files with 4 additions and 2 deletions
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5
hscontrol/derp/derp.go
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@@ -140,10 +140,13 @@ var crc64Table = crc64.MakeTable(crc64.ISO)
var (
derpRandomOnce sync.Once
derpRandomInst *rand.Rand
derpRandomMu sync.RWMutex
derpRandomMu sync.Mutex
)
func derpRandom() *rand.Rand {
derpRandomMu.Lock()
defer derpRandomMu.Unlock()
derpRandomOnce.Do(func() {
seed := cmp.Or(viper.GetString("dns.base_domain"), time.Now().String())
rnd := rand.New(rand.NewSource(0))