// ODirectPlatform indicates if the platform supports O_DIRECT
const ODirectPlatform = true

// OpenFileDirectIO - bypass kernel cache.
func OpenFileDirectIO(filePath string, flag int, perm os.FileMode) (*os.File, error) {
	return directio.OpenFile(filePath, flag, perm)
}

// DisableDirectIO - disables directio mode.
func DisableDirectIO(f *os.File) error {
	fd := f.Fd()
	flag, err := unix.FcntlInt(fd, unix.F_GETFL, 0)
	if err != nil {

// https://github.com/openzfs/zfs/commit/a584ef26053065f486d46a7335bea222cb03eeea

// OpenFileDirectIO wrapper around os.OpenFile nothing special
func OpenFileDirectIO(filePath string, flag int, perm os.FileMode) (*os.File, error) {
	return os.OpenFile(filePath, flag, perm)
}

// DisableDirectIO is a no-op
func DisableDirectIO(f *os.File) error {
	return nil
}

// AlignedBlock simply returns an unaligned buffer

import (
	"io"
	"os"
	"syscall"
)

func access(name string) error {
	_, err := os.Lstat(name)
	return err
}

func osMkdirAll(dirPath string, perm os.FileMode, _ string) error {
	// baseDir is not honored in plan9 and solaris platforms.
	return os.MkdirAll(dirPath, perm)
}

// readDirFn applies the fn() function on each entries at dirPath, doesn't recurse into

pkg math/rand/v2, func NewPCG(uint64, uint64) *PCG #61716
pkg math/rand/v2, func NewZipf(*Rand, float64, float64, uint64) *Zipf #61716
pkg math/rand/v2, func NormFloat64() float64 #61716
pkg math/rand/v2, func Perm(int) []int #61716
pkg math/rand/v2, func Shuffle(int, func(int, int)) #61716
pkg math/rand/v2, func Uint32() uint32 #61716
pkg math/rand/v2, func Uint32N(uint32) uint32 #61716
pkg math/rand/v2, func Uint64() uint64 #61716

    List<Integer> expected = createOrderedList(size);
    for (Collection<Integer> perm : Collections2.permutations(expected)) {
      for (int i = 0; i < perm.size(); i++) {
        MinMaxPriorityQueue<Integer> q = MinMaxPriorityQueue.create(perm);
        q.removeAt(i);
        assertIntactUsingStartedWith(perm, q);
      }
    }
  }

  /** Regression test for bug found. */

	var wg sync.WaitGroup
	disks := er.getDisks()
	infos := make([]DiskInfo, len(disks))
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	for _, i := range r.Perm(len(disks)) {
		i := i
		wg.Add(1)
		go func() {
			defer wg.Done()

			disk := disks[i]
			if disk == nil {
				infos[i].Error = errDiskNotFound.Error()
				return
			}

   * <pre>{@code
   * for (List<String> perm : orderedPermutations(asList("b", "c", "a"))) {
   *   println(perm);
   * }
   * // -> ["a", "b", "c"]
   * // -> ["a", "c", "b"]
   * // -> ["b", "a", "c"]
   * // -> ["b", "c", "a"]
   * // -> ["c", "a", "b"]
   * // -> ["c", "b", "a"]
   *
   * for (List<Integer> perm : orderedPermutations(asList(1, 2, 2, 1))) {
   *   println(perm);
   * }
   * // -> [1, 1, 2, 2]

   * <pre>{@code
   * for (List<String> perm : orderedPermutations(asList("b", "c", "a"))) {
   *   println(perm);
   * }
   * // -> ["a", "b", "c"]
   * // -> ["a", "c", "b"]
   * // -> ["b", "a", "c"]
   * // -> ["b", "c", "a"]
   * // -> ["c", "a", "b"]
   * // -> ["c", "b", "a"]
   *
   * for (List<Integer> perm : orderedPermutations(asList(1, 2, 2, 1))) {
   *   println(perm);
   * }
   * // -> [1, 1, 2, 2]

	st, err := os.Stat(path.Join(tmpPath, testCase.volName))
	if err != nil {
		t.Fatalf("Stat failed with %s expected to pass.", err)
	}

	// Get umask of the bits stored.
	currentUmask := 0o777 - uint32(st.Mode().Perm())

	// Verify if umask is correct.
	if int(currentUmask) != testCase.expectedUmask {
		t.Fatalf("Umask check failed expected %d, got %d", testCase.expectedUmask, currentUmask)
	}
}

          @Override
          public void checkAccess(Thread t) {
            throw new SecurityException();
          }

          @Override
          public void checkPermission(Permission perm) {
            // Do nothing so we can clear the security manager at the end
          }
        });
    try {
      final String oldName = Thread.currentThread().getName();