Socket.GetSocketOption Método

Source:

Socket.cs

Source:

Socket.cs

Source:

Socket.cs

public:
 void GetSocketOption(System::Net::Sockets::SocketOptionLevel optionLevel, System::Net::Sockets::SocketOptionName optionName, cli::array <System::Byte> ^ optionValue);

public void GetSocketOption (System.Net.Sockets.SocketOptionLevel optionLevel, System.Net.Sockets.SocketOptionName optionName, byte[] optionValue);

member this.GetSocketOption : System.Net.Sockets.SocketOptionLevel * System.Net.Sockets.SocketOptionName * byte[] -> unit

Public Sub GetSocketOption (optionLevel As SocketOptionLevel, optionName As SocketOptionName, optionValue As Byte())

Parámetros

Excepciones

Ejemplos

En el ejemplo de código siguiente se recuperan los LingerOption valores de tiempo de espera y Send se muestran en la consola.

Console::Write("This application will timeout if Send does not return within ");
Console::WriteLine(Encoding::ASCII->GetString(s->GetSocketOption(SocketOptionLevel::Socket, SocketOptionName::SendTimeout, 4)));

// Blocks until send returns.
int i = s->Send(msg);

// Blocks until read returns.
array<Byte>^ bytes = gcnew array<Byte>(1024);

s->Receive(bytes);

// Displays to the screen.
Console::WriteLine(Encoding::ASCII->GetString(bytes));
s->Shutdown(SocketShutdown::Both);
Console::Write("If data remains to be sent, this application will stay open for ");
Console::WriteLine(safe_cast<LingerOption^>(s->GetSocketOption(SocketOptionLevel::Socket, SocketOptionName::Linger))->LingerTime.ToString());
s->Close();

Console.WriteLine("This application will timeout if Send does not return within " + Encoding.ASCII.GetString(s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 4)));

// blocks until send returns
int i = s.Send(msg);

// blocks until read returns
byte[] bytes = new byte[1024];

s.Receive(bytes);

// Display to the screen
Console.WriteLine(Encoding.ASCII.GetString(bytes));
s.Shutdown(SocketShutdown.Both);
Console.WriteLine("If data remains to be sent, this application will stay open for " + ((LingerOption)s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger)).LingerTime.ToString());
s.Close();

    Console.WriteLine(("This application will timeout if Send does not return within " + Encoding.ASCII.GetString(s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 4))))
    ' blocks until send returns
    Dim i As Integer = s.Send(msg)

    ' blocks until read returns
    Dim bytes(1024) As Byte
    s.Receive(bytes)

    'Display to the screen
    Console.WriteLine(Encoding.ASCII.GetString(bytes))
    s.Shutdown(SocketShutdown.Both)

    Console.WriteLine(("If data remains to be sent, this application will stay open for " + CType(s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger), LingerOption).LingerTime.ToString()))
    s.Close()
End Sub

Comentarios

Socket las opciones determinan el comportamiento del objeto actual Socket. Tras completar correctamente este método, la matriz especificada por el optionValue parámetro contiene el valor de la opción especificada Socket .

Cuando la longitud de la optionValue matriz sea menor que el número de bytes necesarios para almacenar el valor de la opción especificada Socket , GetSocketOption producirá una SocketExceptionexcepción . Si recibe un SocketException, use la SocketException.ErrorCode propiedad para obtener el código de error específico. Después de obtener este código, consulte la documentación del código de error de la API de Windows Sockets versión 2 para obtener una descripción detallada del error. Use esta sobrecarga para los sockets representados por valores booleanos o enteros.

Consulte también

• SetSocketOption(SocketOptionLevel, SocketOptionName, Int32)
• SocketOptionName
• SocketOptionLevel

Source:

Socket.cs

Source:

Socket.cs

Source:

Socket.cs

public:
 cli::array <System::Byte> ^ GetSocketOption(System::Net::Sockets::SocketOptionLevel optionLevel, System::Net::Sockets::SocketOptionName optionName, int optionLength);

public byte[] GetSocketOption (System.Net.Sockets.SocketOptionLevel optionLevel, System.Net.Sockets.SocketOptionName optionName, int optionLength);

member this.GetSocketOption : System.Net.Sockets.SocketOptionLevel * System.Net.Sockets.SocketOptionName * int -> byte[]

Public Function GetSocketOption (optionLevel As SocketOptionLevel, optionName As SocketOptionName, optionLength As Integer) As Byte()

Parámetros

Devoluciones

Matriz de tipo Byte que contiene el valor de la opción de socket.

Excepciones

Ejemplos

En el ejemplo de código siguiente se recuperan los LingerOption valores de tiempo de espera y Send se muestran en la consola.

Console::Write("This application will timeout if Send does not return within ");
Console::WriteLine(Encoding::ASCII->GetString(s->GetSocketOption(SocketOptionLevel::Socket, SocketOptionName::SendTimeout, 4)));

// Blocks until send returns.
int i = s->Send(msg);

// Blocks until read returns.
array<Byte>^ bytes = gcnew array<Byte>(1024);

s->Receive(bytes);

// Displays to the screen.
Console::WriteLine(Encoding::ASCII->GetString(bytes));
s->Shutdown(SocketShutdown::Both);
Console::Write("If data remains to be sent, this application will stay open for ");
Console::WriteLine(safe_cast<LingerOption^>(s->GetSocketOption(SocketOptionLevel::Socket, SocketOptionName::Linger))->LingerTime.ToString());
s->Close();

Console.WriteLine("This application will timeout if Send does not return within " + Encoding.ASCII.GetString(s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 4)));

// blocks until send returns
int i = s.Send(msg);

// blocks until read returns
byte[] bytes = new byte[1024];

s.Receive(bytes);

// Display to the screen
Console.WriteLine(Encoding.ASCII.GetString(bytes));
s.Shutdown(SocketShutdown.Both);
Console.WriteLine("If data remains to be sent, this application will stay open for " + ((LingerOption)s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger)).LingerTime.ToString());
s.Close();

    Console.WriteLine(("This application will timeout if Send does not return within " + Encoding.ASCII.GetString(s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 4))))
    ' blocks until send returns
    Dim i As Integer = s.Send(msg)

    ' blocks until read returns
    Dim bytes(1024) As Byte
    s.Receive(bytes)

    'Display to the screen
    Console.WriteLine(Encoding.ASCII.GetString(bytes))
    s.Shutdown(SocketShutdown.Both)

    Console.WriteLine(("If data remains to be sent, this application will stay open for " + CType(s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger), LingerOption).LingerTime.ToString()))
    s.Close()
End Sub

Comentarios

El optionLength parámetro establece el tamaño máximo de la matriz de bytes devuelta. Si el valor de opción requiere menos bytes, la matriz contendrá solo esos muchos bytes. Si el valor de la opción requiere más bytes, GetSocketOption producirá una SocketExceptionexcepción . Use esta sobrecarga para los sockets representados por valores booleanos o enteros.

Consulte también

• SetSocketOption(SocketOptionLevel, SocketOptionName, Int32)
• SocketOptionName
• SocketOptionLevel

Source:

Socket.cs

Source:

Socket.cs

Source:

Socket.cs

public:
 System::Object ^ GetSocketOption(System::Net::Sockets::SocketOptionLevel optionLevel, System::Net::Sockets::SocketOptionName optionName);

public object? GetSocketOption (System.Net.Sockets.SocketOptionLevel optionLevel, System.Net.Sockets.SocketOptionName optionName);

public object GetSocketOption (System.Net.Sockets.SocketOptionLevel optionLevel, System.Net.Sockets.SocketOptionName optionName);

member this.GetSocketOption : System.Net.Sockets.SocketOptionLevel * System.Net.Sockets.SocketOptionName -> obj

Public Function GetSocketOption (optionLevel As SocketOptionLevel, optionName As SocketOptionName) As Object

Parámetros

Devoluciones

Objeto que representa el valor de una opción. Cuando se establece el parámetro optionName en Linger, el valor devuelto es una instancia de la clase LingerOption. Cuando se establece el parámetro optionName en AddMembership o DropMembership, el valor devuelto es una instancia de la clase MulticastOption. Cuando optionName está establecido en cualquier otro valor, el valor de devolución es un entero.

Excepciones

Ejemplos

En el ejemplo de código siguiente se recuperan los LingerOption valores de tiempo de espera y Send se muestran en la consola.

Console::Write("This application will timeout if Send does not return within ");
Console::WriteLine(Encoding::ASCII->GetString(s->GetSocketOption(SocketOptionLevel::Socket, SocketOptionName::SendTimeout, 4)));

// Blocks until send returns.
int i = s->Send(msg);

// Blocks until read returns.
array<Byte>^ bytes = gcnew array<Byte>(1024);

s->Receive(bytes);

// Displays to the screen.
Console::WriteLine(Encoding::ASCII->GetString(bytes));
s->Shutdown(SocketShutdown::Both);
Console::Write("If data remains to be sent, this application will stay open for ");
Console::WriteLine(safe_cast<LingerOption^>(s->GetSocketOption(SocketOptionLevel::Socket, SocketOptionName::Linger))->LingerTime.ToString());
s->Close();

Console.WriteLine("This application will timeout if Send does not return within " + Encoding.ASCII.GetString(s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 4)));

// blocks until send returns
int i = s.Send(msg);

// blocks until read returns
byte[] bytes = new byte[1024];

s.Receive(bytes);

// Display to the screen
Console.WriteLine(Encoding.ASCII.GetString(bytes));
s.Shutdown(SocketShutdown.Both);
Console.WriteLine("If data remains to be sent, this application will stay open for " + ((LingerOption)s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger)).LingerTime.ToString());
s.Close();

    Console.WriteLine(("This application will timeout if Send does not return within " + Encoding.ASCII.GetString(s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 4))))
    ' blocks until send returns
    Dim i As Integer = s.Send(msg)

    ' blocks until read returns
    Dim bytes(1024) As Byte
    s.Receive(bytes)

    'Display to the screen
    Console.WriteLine(Encoding.ASCII.GetString(bytes))
    s.Shutdown(SocketShutdown.Both)

    Console.WriteLine(("If data remains to be sent, this application will stay open for " + CType(s.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger), LingerOption).LingerTime.ToString()))
    s.Close()
End Sub

Comentarios

Socket las opciones determinan el comportamiento del objeto actual Socket. Use esta sobrecarga para obtener las Lingeropciones , AddMembershipy DropMembershipSocket . Para la Linger opción , use Socket para el optionLevel parámetro . Para AddMembership y DropMembership, use IP. Si desea establecer el valor de cualquiera de las opciones enumeradas anteriormente, use el SetSocketOption método .

Consulte también

• SetSocketOption(SocketOptionLevel, SocketOptionName, Int32)
• SocketOptionName
• SocketOptionLevel