SslStream.ReadTimeout Propriedade

Definição

Namespace:

System.Net.Security

Assembly:

System.Net.Security.dll

Origem:

SslStream.cs

Obtém ou define a quantidade de tempo, expressa em milissegundos, que uma operação de leitura é bloqueada aguardando dados.

public:
 virtual property int ReadTimeout { int get(); void set(int value); };

public override int ReadTimeout { get; set; }

member this.ReadTimeout : int with get, set

Public Overrides Property ReadTimeout As Integer

Valor da propriedade

Int32

A quantidade de tempo, em milissegundos, que decorre antes de uma operação de leitura síncrona falhar.

Exemplos

O exemplo de código a seguir demonstra como definir o valor dessa propriedade.

static void ProcessClient( TcpClient^ client )
{
   
   // A client has connected. Create the 
   // SslStream using the client's network stream.
   SslStream^ sslStream = gcnew SslStream( client->GetStream(),false );
   
   // Authenticate the server but don't require the client to authenticate.
   try
   {
      sslStream->AuthenticateAsServer( serverCertificate, false, true );
      // false == no client cert required; true == check cert revocation.
      
      // Display the properties and settings for the authenticated stream.
      DisplaySecurityLevel( sslStream );
      DisplaySecurityServices( sslStream );
      DisplayCertificateInformation( sslStream );
      DisplayStreamProperties( sslStream );
      
      // Set timeouts for the read and write to 5 seconds.
      sslStream->ReadTimeout = 5000;
      sslStream->WriteTimeout = 5000;
      
      // Read a message from the client.   
      Console::WriteLine( L"Waiting for client message..." );
      String^ messageData = ReadMessage( sslStream );
      Console::WriteLine( L"Received: {0}", messageData );
      
      // Write a message to the client.
      array<Byte>^message = Encoding::UTF8->GetBytes( L"Hello from the server.<EOF>" );
      Console::WriteLine( L"Sending hello message." );
      sslStream->Write( message );
   }
   catch ( AuthenticationException^ e ) 
   {
      Console::WriteLine( L"Exception: {0}", e->Message );
      if ( e->InnerException != nullptr )
      {
         Console::WriteLine( L"Inner exception: {0}", e->InnerException->Message );
      }
      Console::WriteLine( L"Authentication failed - closing the connection." );
      sslStream->Close();
      client->Close();
      return;
   }
   finally
   {
      
      // The client stream will be closed with the sslStream
      // because we specified this behavior when creating
      // the sslStream.
      sslStream->Close();
      client->Close();
   }

}

static void ProcessClient (TcpClient client)
{
    // A client has connected. Create the
    // SslStream using the client's network stream.
    SslStream sslStream = new SslStream(
        client.GetStream(), false);
    // Authenticate the server but don't require the client to authenticate.
    try
    {
        sslStream.AuthenticateAsServer(serverCertificate, clientCertificateRequired: false, checkCertificateRevocation: true);

        // Display the properties and settings for the authenticated stream.
        DisplaySecurityLevel(sslStream);
        DisplaySecurityServices(sslStream);
        DisplayCertificateInformation(sslStream);
        DisplayStreamProperties(sslStream);

        // Set timeouts for the read and write to 5 seconds.
        sslStream.ReadTimeout = 5000;
        sslStream.WriteTimeout = 5000;
        // Read a message from the client.
        Console.WriteLine("Waiting for client message...");
        string messageData = ReadMessage(sslStream);
        Console.WriteLine("Received: {0}", messageData);

        // Write a message to the client.
        byte[] message = Encoding.UTF8.GetBytes("Hello from the server.<EOF>");
        Console.WriteLine("Sending hello message.");
        sslStream.Write(message);
    }
    catch (AuthenticationException e)
    {
        Console.WriteLine("Exception: {0}", e.Message);
        if (e.InnerException != null)
        {
            Console.WriteLine("Inner exception: {0}", e.InnerException.Message);
        }
        Console.WriteLine ("Authentication failed - closing the connection.");
        sslStream.Close();
        client.Close();
        return;
    }
    finally
    {
        // The client stream will be closed with the sslStream
        // because we specified this behavior when creating
        // the sslStream.
        sslStream.Close();
        client.Close();
    }
}

Private Shared Sub ProcessClient(client As TcpClient)
    ' A client has connected. Create the 
    ' SslStream using the client's network stream.
    Dim sslStream = New SslStream(client.GetStream(), False)

    Try

        sslStream.AuthenticateAsServer(serverCertificate, clientCertificateRequired:=False, checkCertificateRevocation:=True)
        ' Display the properties And settings for the authenticated stream.
        DisplaySecurityLevel(sslStream)
        DisplaySecurityServices(sslStream)
        DisplayCertificateInformation(sslStream)
        DisplayStreamProperties(sslStream)

        ' Set timeouts for the read and write to 5 seconds.
        sslStream.ReadTimeout = 5000
        sslStream.WriteTimeout = 5000

        ' Read a message from the client.   
        Console.WriteLine("Waiting for client message...")
        Dim messageData As String = ReadMessage(sslStream)
        Console.WriteLine("Received: {0}", messageData)

        ' Write a message to the client.
        Dim message As Byte() = Encoding.UTF8.GetBytes("Hello from the server.<EOF>")
        Console.WriteLine("Sending hello message.")
        sslStream.Write(message)
    Catch e As AuthenticationException
        Console.WriteLine("Exception: {0}", e.Message)

        If e.InnerException IsNot Nothing Then
            Console.WriteLine("Inner exception: {0}", e.InnerException.Message)
        End If

        Console.WriteLine("Authentication failed - closing the connection.")
        sslStream.Close()
        client.Close()
        Return
    Finally
        ' The client stream will be closed with the sslStream
        ' because we specified this behavior when creating
        ' the sslStream.
        sslStream.Close()
        client.Close()
    End Try
End Sub

Comentários

Essa propriedade retorna o valor retornado invocando ReadTimeout no fluxo subjacente. Quando você define essa propriedade, o ReadTimeout valor no fluxo subjacente é definido como o valor especificado.

Se o fluxo subjacente for um NetworkStream, ReadTimeout estará em milissegundos e será definido como por padrão para Infinite que as operações de leitura não atingissem o tempo limite.