* Creates a new session service packet instance.
     */
    public SessionServicePacket() {
        // Default constructor
    }

    // session service packet types
    static final int SESSION_MESSAGE = 0x00;
    static final int SESSION_REQUEST = 0x81;

    /**
     * NetBIOS positive session response packet type.
     */
    public static final int POSITIVE_SESSION_RESPONSE = 0x82;

 */

package jcifs.smb1.netbios;

import java.io.IOException;
import java.io.InputStream;

/**
 * NetBIOS session request packet for establishing sessions.
 * This packet is sent to request a NetBIOS session with a remote host.
 */
public class SessionRequestPacket extends SessionServicePacket {

    private final Name calledName, callingName;

        assertThrows(IOException.class, () -> sis.read());
    }

    @Test
    @DisplayName("Unknown packet type is handled by continuing to next packet")
    void unknownPacketTypeHandled() throws IOException {
        // According to the SocketInputStream implementation, unknown packet types
        // are handled in the switch statement's default case which continues the loop
        byte[] data = new byte[] { 1, 2 };

    void testConstructorWithConfigOnly() {
        SessionRequestPacket packet = new SessionRequestPacket(mockConfig);

        assertNotNull(packet);
        // The packet should have calledName and callingName initialized but empty
        byte[] dst = new byte[256];
        int written = packet.writeTrailerWireFormat(dst, 0);
        assertTrue(written > 0);
    }

    @Test

        }
        byte[] packet = new byte[totalLen];
        System.arraycopy(header, 0, packet, 0, header.length);
        System.arraycopy(body, 0, packet, SMB2_HEADER_LENGTH, body.length);
        if (ctxOffsetFromHeader != null && ctxBytes != null) {
            System.arraycopy(ctxBytes, 0, packet, ctxOffsetFromHeader, ctxBytes.length);
        }
        return packet;
    }

    @Test

        }

        @Test
        @DisplayName("All RPC packet flags should have unique values")
        void testRpcPacketFlagsUniqueness() {
            // Verify that RPC packet flags are unique and follow bit pattern
            assertEquals(1, Integer.bitCount(DcerpcConstants.RPC_C_PF_BROADCAST), "RPC_C_PF_BROADCAST should be a single bit");

        // Arrange
        NameServicePacket packet = new NodeStatusRequest(mockConfig, mockName);

        // Assert
        assertInstanceOf(NodeStatusRequest.class, packet);
        assertEquals(NameServicePacket.NBSTAT, packet.questionType);
        assertFalse(packet.isRecurDesired);
        assertFalse(packet.isBroadcast);
    }

    @Test

     */
    protected int alloc_hint = 0;
    /**
     * The result code of the DCERPC operation
     */
    protected int result = 0;

    /**
     * Gets the packet type of this DCERPC message
     * @return the packet type
     */
    public int getPtype() {
        return ptype;
    }

    /**
     * Gets the flags of this DCERPC message
     * @return the message flags
     */

{* ../../docs_src/events/tutorial003_py39.py hl[14:19] *}

A primeira parte da função, antes do `yield`, será executada **antes** de a aplicação iniciar.

E a parte posterior ao `yield` será executada **depois** de a aplicação ter terminado.

### Gerenciador de contexto assíncrono { #async-context-manager }

Você pode **implantar um servidor** por conta própria usando uma combinação de ferramentas, pode usar um **serviço em nuvem** que faça parte do trabalho por você, entre outras opções.