TcpListener.EndAcceptSocket(IAsyncResult) TcpListener.EndAcceptSocket(IAsyncResult) TcpListener.EndAcceptSocket(IAsyncResult) TcpListener.EndAcceptSocket(IAsyncResult) Method

Définition

Accepte de manière asynchrone une tentative de connexion entrante et crée un nouveau Socket pour gérer les communications de l'hôte distant.Asynchronously accepts an incoming connection attempt and creates a new Socket to handle remote host communication.

public:
 System::Net::Sockets::Socket ^ EndAcceptSocket(IAsyncResult ^ asyncResult);
public System.Net.Sockets.Socket EndAcceptSocket (IAsyncResult asyncResult);
member this.EndAcceptSocket : IAsyncResult -> System.Net.Sockets.Socket
Public Function EndAcceptSocket (asyncResult As IAsyncResult) As Socket

Paramètres

Retours

SocketA Socket.

Socket utilisé pour envoyer et recevoir des données.The Socket used to send and receive data.

Exceptions

Le paramètre asyncResult a la valeur null.The asyncResult parameter is null.

Le paramètre asyncResult n'a pas été créé par un appel à la méthode BeginAcceptSocket(AsyncCallback, Object).The asyncResult parameter was not created by a call to the BeginAcceptSocket(AsyncCallback, Object) method.

Une erreur s'est produite lors de la tentative d'accès à Socket.An error occurred while attempting to access the Socket.

Exemples

L’exemple de code suivant illustre l’utilisation de la BeginAcceptSocket méthode pour créer et connecter un socket.The following code example demonstrates the use of the BeginAcceptSocket method to create and connect a socket. Le délégué de rappel appelle le EndAcceptSocket méthode à la fin de la demande asynchrone.The callback delegate calls the EndAcceptSocket method to end the asynchronous request.

    // Thread signal.
public:
    static ManualResetEvent^ ClientConnected;

    // Accept one client connection asynchronously.
public:
    static void DoBeginAcceptSocket(TcpListener^ listener)
    {
        // Set the event to nonsignaled state.
        ClientConnected->Reset();

        // Start to listen for connections from a client.
        Console::WriteLine("Waiting for a connection...");

        // Accept the connection.
        // BeginAcceptSocket() creates the accepted socket.
        listener->BeginAcceptSocket(
            gcnew AsyncCallback(DoAcceptSocketCallback), listener);
        // Wait until a connection is made and processed before
        // continuing.
        ClientConnected->WaitOne();
    }

    // Process the client connection.
public:
    static void DoAcceptSocketCallback(IAsyncResult^ result)
    {
        // Get the listener that handles the client request.
        TcpListener^ listener = (TcpListener^) result->AsyncState;

        // End the operation and display the received data on the
        //console.
        Socket^ clientSocket = listener->EndAcceptSocket(result);

        // Process the connection here. (Add the client to a
        // server table, read data, etc.)
        Console::WriteLine("Client connected completed");

        // Signal the calling thread to continue.
        ClientConnected->Set();
    }
// Thread signal.
public static ManualResetEvent clientConnected = 
    new ManualResetEvent(false);

// Accept one client connection asynchronously.
public static void DoBeginAcceptSocket(TcpListener listener)
{
    // Set the event to nonsignaled state.
    clientConnected.Reset();

    // Start to listen for connections from a client.
    Console.WriteLine("Waiting for a connection...");

    // Accept the connection. 
    // BeginAcceptSocket() creates the accepted socket.
    listener.BeginAcceptSocket(
        new AsyncCallback(DoAcceptSocketCallback), listener);
    // Wait until a connection is made and processed before 
    // continuing.
    clientConnected.WaitOne();
}

// Process the client connection.
public static void DoAcceptSocketCallback(IAsyncResult ar) 
{
    // Get the listener that handles the client request.
    TcpListener listener = (TcpListener) ar.AsyncState;
    
    // End the operation and display the received data on the
    //console.
    Socket clientSocket = listener.EndAcceptSocket(ar);

    // Process the connection here. (Add the client to a 
    // server table, read data, etc.)
    Console.WriteLine("Client connected completed");

    // Signal the calling thread to continue.
    clientConnected.Set();
}
' Thread signal.
Public Shared clientConnected As New ManualResetEvent(False)


' Accept one client connection asynchronously.
Public Shared Sub DoBeginAcceptSocket(listener As TcpListener)
   ' Set the event to nonsignaled state.
   clientConnected.Reset()
   
   ' Start to listen for connections from a client.
   Console.WriteLine("Waiting for a connection...")
   
   ' Accept the connection. 
   ' BeginAcceptSocket() creates the accepted socket.
   listener.BeginAcceptSocket(New AsyncCallback(AddressOf DoAcceptSocketCallback), listener)
   ' Wait until a connection is made and processed before 
   ' continuing.
   clientConnected.WaitOne()
End Sub 'DoBeginAcceptSocket


' Process the client connection.
Public Shared Sub DoAcceptSocketCallback(ar As IAsyncResult)
   ' Get the listener that handles the client request.
   Dim listener As TcpListener = CType(ar.AsyncState, TcpListener)
   
   ' End the operation and display the received data on the
   'console.
   Dim clientSocket As Socket = listener.EndAcceptSocket(ar)
   
   ' Process the connection here. (Add the client to a 
   ' server table, read data, etc.)
   Console.WriteLine("Client connected completed")
   
   ' Signal the calling thread to continue.
   clientConnected.Set()
End Sub 'DoAcceptSocketCallback

Remarques

Cette méthode se bloque jusqu'à ce que l’opération soit terminer.This method blocks until the operation is complete. Pour effectuer cette opération de façon synchrone, utilisez la AcceptSocket (méthode).To perform this operation synchronously, use the AcceptSocket method.

Notes

Vous pouvez appeler la RemoteEndPoint propriété de retourné Socket pour identifier l’hôte distant réseau adresse et numéro de port.You can call the RemoteEndPoint property of the returned Socket to identify the remote host's network address and port number.

Notes

Si vous recevez un SocketException, utilisez le SocketException.ErrorCode propriété pour obtenir le code d’erreur spécifique et reportez-vous à la code d’erreur API Windows Sockets version 2 documentation pour obtenir une description détaillée de l’erreur.If you receive a SocketException, use the SocketException.ErrorCode property to obtain the specific error code and refer to the Windows Sockets version 2 API error code documentation for a detailed description of the error.

Notes

Ce membre génère des informations de traçage lorsque vous activez le traçage réseau dans votre application.This member outputs trace information when you enable network tracing in your application. Pour plus d’informations, consultez le traçage réseau dans le .NET Framework.For more information, see Network Tracing in the .NET Framework.

S’applique à