* **Code asynchrone**
* **`async` et `await`**
* **Coroutines**

## Code asynchrone

Faire du code asynchrone signifie que le langage 💬 est capable de dire à l'ordinateur / au programme 🤖 qu'à un moment du code, il 🤖 devra attendre que *quelque chose d'autre* se termine autre part. Disons que ce *quelque chose d'autre* est appelé "fichier-lent" 📝.

		{name: "rootfile2", size: 10000},
		{name: "dir1/d1file", size: 2000},
		{name: "dir2/d2file", size: 300},
		{name: "dir2/d2file2", size: 300},
		{name: "dir2/d2file3/", size: 300},
		{name: "dir2/d2file4/", size: 300},
		{name: "dir2/d2file5", size: 300},
		{name: "dir1/dira/dafile", size: 100000},
		{name: "dir1/dira/dbfile", size: 200000},
		{name: "dir1/dira/dirasub/dcfile", size: 1000000},

    @Test
    public void testMultipleDirectories() {
        String dir1 = "/test/dir1";
        String dir2 = "/test/dir2";
        String dir3 = "/test/dir3";

        Smb2LeaseKey key1 = new Smb2LeaseKey();
        Smb2LeaseKey key2 = new Smb2LeaseKey();
        Smb2LeaseKey key3 = new Smb2LeaseKey();

        when(baseLeaseManager.requestLease(dir1, DirectoryLeaseState.DIRECTORY_READ_HANDLE)).thenReturn(key1);

	if err != nil {
		t.Fatalf("%s: <ERROR> %s", instanceType, err)
	}

	testCases := []struct {
		dir string
		err error
	}{
		{
			dir: "dir1/",
			err: ObjectNotFound{Bucket: bucketName, Object: "dir1/"},
		},
		{
			dir: "dir1/dir3/",

        assertFalse(directoryLeaseManager.canCacheDirectoryListing(directoryPath));
    }

    @Test
    public void testMultipleDirectoryCaching() throws Exception {
        String dir1 = "/test/dir1";
        String dir2 = "/test/dir2";

        // Setup mock files for this test
        when(mockFile1.getName()).thenReturn("document.txt");
        when(mockFile1.length()).thenReturn(2048L);

		{[]string{"192.168.1.210:9000/tmp/dir0", "192.168.1.210:9000/tmp/dir1", "192.168.1.210:9000/tmp/dir2", "192.168.110:9000/tmp/dir3"}, fmt.Errorf("'192.168.1.210:9000/tmp/dir0': invalid URL endpoint format: missing scheme http or https")},
	}

	for _, testCase := range testCases {
		_, err := NewEndpoints(testCase.args...)

                baseDir = tempDir;
                // Count expired files
                int count = 0;
                File[] dirs = baseDir.listFiles();
                if (dirs != null) {
                    for (File dir : dirs) {
                        if (dir.isDirectory() && dir.getName().startsWith("_")) {
                            count++;
                        }
                    }
                }

	Hidden: true,
	CustomHelpTemplate: `NAME:
  {{.HelpName}} - {{.Usage}}

USAGE:
  {{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR1 [DIR2..]
  {{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR{1...64}
  {{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR{1...64} DIR{65...128}

DIR:
  DIR points to a directory on a filesystem. When you want to combine
  multiple drives into a single large system, pass one directory per

	dir1 := slashpath.Join(tmp, "non-existent-directory")
	if isDirEmpty(dir1, true) {
		t.Error("expected false for non-existent directory, got true")
	}

	// Should give false for not-a-directory.
	dir2 := slashpath.Join(tmp, "file")
	err := os.WriteFile(dir2, []byte("hello"), 0o777)
	if err != nil {
		t.Fatal(err)
	}

	if isDirEmpty(dir2, true) {

	SSECustomerKeySize = 32

	// SSEIVSize is the size of the IV data
	SSEIVSize = 32 // 32 bytes

	// SSEDAREPackageBlockSize - SSE dare package block size.
	SSEDAREPackageBlockSize = 64 * 1024 // 64KiB bytes

	// SSEDAREPackageMetaSize - SSE dare package meta padding bytes.
	SSEDAREPackageMetaSize = 32 // 32 bytes

)

// KMSKeyID returns in AWS compatible KMS KeyID() format.