# Concurrence et les mots-clés async et await

Cette page vise à fournir des détails sur la syntaxe `async def` pour les *fonctions de chemins* et quelques rappels sur le code asynchrone, la concurrence et le parallélisme.

## Vous êtes pressés ?

<abbr title="'too long; didn't read' en anglais, ou 'trop long ; j'ai pas lu'"><strong>TL;DR :</strong></abbr>

Si vous utilisez des bibliothèques tierces qui nécessitent d'être appelées avec `await`, telles que :

### SMB3 Encryption Support
- **SMB2 Transform Header**: Encrypted message wrapping
- **AES-CCM/GCM Support**: Both AES-128-CCM (SMB 3.0/3.0.2) and AES-128-GCM (SMB 3.1.1) cipher suites
- **Encryption Context**: Per-session encryption state management
- **Key Derivation**: SMB3 KDF implementation with dialect-specific parameters
- **Pre-Authentication Integrity**: SMB 3.1.1 PAI for preventing downgrade attacks

            assertEquals(0, result);
        }
    }

    @Nested
    @DisplayName("Response State Tests")
    class ResponseStateTests {

        @Test
        @DisplayName("Should track received state")
        void testReceivedState() {
            assertFalse(echoResponse.isReceived());

            echoResponse.received();

    public String[] groups;

    /** Version number for optimistic locking */
    public String versionNo;

    /**
     * Clears all pagination state and search criteria.
     * Resets the pager to its initial state with default values.
     */
    public void clear() {
        allRecordCount = 0;
        allPageCount = 0;
        existPrePage = false;
        existNextPage = false;

    protected final AtomicInteger sendCredits;
    protected final AtomicInteger receiveCredits;
    protected final BlockingQueue<RdmaWorkRequest> pendingRequests;
    
    // Connection state
    protected volatile RdmaConnectionState state;
    protected RdmaCredits credits;
    protected int maxFragmentedSize;
    protected int maxReadWriteSize;
    
    public enum RdmaConnectionState {
        DISCONNECTED,

     * @return the lease key
     */
    public Smb2LeaseKey getLeaseKey() {
        return leaseKey;
    }

    /**
     * Gets the lease state granted by the server
     * @return the granted lease state
     */
    public int getLeaseState() {
        return leaseState;
    }

    /**
     * Gets the lease flags from the server response
     * @return the lease flags
     */

 * This class provides methods to handle authentication details such as
 * authentication scope, credentials, and authentication scheme.
 *
 * <p>
 * It includes constructors to initialize these details and getter and setter
 * methods to access and modify them.
 * </p>
 *
 * <p>
 * Example usage:
 * </p>
 * <pre>
 * {@code
 * AuthScope authScope = new AuthScope("example.com", 80);

    private Response mockResponse;

    @BeforeEach
    void setUp() {
        // Reset mock before each test to ensure clean state
        // MockitoExtension handles this automatically for @Mock fields, but good to be aware.
    }

    @Test
    void testIsReceived() {
        // Test initial state (should be false by default for a fresh mock)
        assertFalse(mockResponse.isReceived());

        // Simulate received status

        Throwable cause = new IllegalStateException("Invalid state");
        CommandExecutionException exception = new CommandExecutionException(message, cause);

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
        assertEquals("Invalid state", exception.getCause().getMessage());

        transaction.maxBufferSize = 1024;
    }

    @Test
    @DisplayName("Test reset() method resets transaction state")
    void testReset() {
        // Modify state
        transaction.nextElement();

        // Reset
        transaction.reset();

        // Verify state is reset
        assertTrue(transaction.hasMoreElements(), "hasMoreElements should be true after reset");
    }

    @Test