repository('useless1') {
                                    resolverClass = UselessToolchainResolver1
                                }
                                repository('useless2') {
                                    resolverClass = UselessToolchainResolver2
                                }
                                repository('useless3') {

	buf := make([]byte, 512)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		rb.Write(data)
		rb.Read(buf)
	}
}

func BenchmarkRingBuffer_AsyncRead(b *testing.B) {
	// Pretty useless benchmark, but it's here for completeness.
	rb := New(1024)
	data := []byte(strings.Repeat("a", 512))
	buf := make([]byte, 512)

	go func() {
		for {
			rb.Read(buf)
		}
	}()

	b.ResetTimer()

		if !ok || namoff+namlen > uint64(len(rec)) {
			break
		}
		name := rec[namoff : namoff+namlen]
		for i, c := range name {
			if c == 0 {
				name = name[:i]
				break
			}
		}
		// Check for useless names before allocating a string.
		if string(name) == "." || string(name) == ".." {
			continue
		}
		max--
		count++
		names = append(names, string(name))
	}
	return origlen - len(buf), count, names

			continue
		}
		name := (*[len(syscall.Dirent{}.Name)]byte)(unsafe.Pointer(&dirent.Name))[:]
		for i, c := range name {
			if c == 0 {
				name = name[:i]
				break
			}
		}
		// Check for useless names before allocating a string.
		if string(name) == "." || string(name) == ".." {
			continue
		}
		if mode == readdirName {
			names = append(names, string(name))
		} else if mode == readdirDirEntry {

		if !ok || namoff+namlen > uint64(len(rec)) {
			break
		}
		name := rec[namoff : namoff+namlen]
		for i, c := range name {
			if c == 0 {
				name = name[:i]
				break
			}
		}
		// Check for useless names before allocating a string.
		if string(name) == "." || string(name) == ".." {
			continue
		}
		if n > 0 { // see 'n == 0' comment above
			n--
		}
		if mode == readdirName {

	if plState == nil {
		klog.V(7).Infof("plName=%s, plState==nil", plName)
		return
	}
	useless := plState.quiescing && plState.numPending == 0 && plState.queues.IsIdle()
	klog.V(7).Infof("plState.quiescing=%v, plState.numPending=%d, useless=%v", plState.quiescing, plState.numPending, useless)
	if !useless {
		return
	}

			return fmt.Errorf("failed to remount /: %v", err)
		}
		// In CNI, we are running the pod network namespace, but the host filesystem. Locking the host is both useless and harmful,
		// as it opens the risk of lock contention with other node actors (such as kube-proxy), and isn't actually needed at all.
		// Older iptables cannot turn off the lock explicitly, so we hack around it...

		// mapping the ID of the address to a shadowRange where future writes will happen.
		// Since we're walking backwards, writes to a shadowed region are useless,
		// as they will be immediately overwritten.
		shadowed.clear()
		v := last

	walkloop:
		if loadUse.contains(v.ID) {
			// Someone might be reading this memory state.
			// Clear all shadowed addresses.

		return nil, errors.New("res_ninit failure: " + err.Error())
	}
	defer _C_res_nclose(state)

	// Some res_nsearch implementations (like macOS) do not set errno.
	// They set h_errno, which is not per-thread and useless to us.
	// res_nsearch returns the size of the DNS response packet.
	// But if the DNS response packet contains failure-like response codes,
	// res_search returns -1 even though it has copied the packet into buf,

		// latest-1.7 version is v1.7.4-beta.0

		// Worth noticing is that when the release-1.X branch is cut; there are two versions tagged: v1.X.0-beta.0 AND v1.(X+1).alpha.0
		// The v1.(X+1).alpha.0 is pretty much useless and should just be ignored, as more betas may be released that have more features than the initial v1.(X+1).alpha.0