func unique_runtime_registerUniqueMapCleanup(f func()) {
	// Start the goroutine in the runtime so it's counted as a system goroutine.
	uniqueMapCleanup = make(chan struct{}, 1)
	go func(cleanup func()) {
		for {
			<-uniqueMapCleanup
			cleanup()
		}
	}(f)
}

func clearpools() {
	// clear sync.Pools
	if poolcleanup != nil {
		poolcleanup()
	}