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ensure that detour list has not changed
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@ -110,8 +110,10 @@ func (this *ReceiverManager) pickDetour() *Receiver {
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if rec.Expired() {
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this.detourAccess.Lock()
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detourLen := len(this.detours)
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this.detours[idx] = this.detours[detourLen-1]
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this.detours = this.detours[:detourLen-1]
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if detourLen > idx && this.detours[idx].Expired() {
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this.detours[idx] = this.detours[detourLen-1]
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this.detours = this.detours[:detourLen-1]
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}
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this.detourAccess.Unlock()
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return nil
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}
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