SocketFlags 枚举

定义

命名空间:

System.Net.Sockets

程序集:

System.Net.Sockets.dll

指定套接字发送和接收行为。

此枚举支持其成员值的按位组合。

public enum class SocketFlags

[System.Flags]
public enum SocketFlags

[<System.Flags>]
type SocketFlags = 

Public Enum SocketFlags

继承

Object

ValueType

Enum

SocketFlags

属性

FlagsAttribute

字段

Broadcast	1024	指示广播数据包。
ControlDataTruncated	512	指示控制数据无法放入 64 KB 的内部缓冲区且已被截断。
DontRoute	4	不使用路由表进行发送。
Multicast	2048	指示多播数据包。
None	0	不对此调用使用任何标志。
OutOfBand	1	处理带外数据。
Partial	32768	部分发送或接收消息。
Peek	2	快速查看传入消息。
Truncated	256	消息太大，无法放入指定的缓冲区，并且已被截断。

示例

以下示例发送数据并指定 SocketFlags.None。

// Displays sending with a connected socket
// using the overload that takes a buffer, message size, and socket flags.
int SendReceiveTest3( Socket^ server )
{
   array<Byte>^ msg = Encoding::UTF8->GetBytes( "This is a test" );
   array<Byte>^ bytes = gcnew array<Byte>(256);
   try
   {
      // Blocks until send returns.
      int i = server->Send( msg, msg->Length, SocketFlags::None );
      Console::WriteLine( "Sent {0} bytes.", i.ToString() );
      
      // Get reply from the server.
      int byteCount = server->Receive( bytes, server->Available,
         SocketFlags::None );
      if ( byteCount > 0 )
      {
         Console::WriteLine( Encoding::UTF8->GetString( bytes ) );
      }
   }
   catch ( SocketException^ e ) 
   {
      Console::WriteLine( "{0} Error code: {1}.", e->Message, e->ErrorCode.ToString() );
      return (e->ErrorCode);
   }
   return 0;
}

// Displays sending with a connected socket
// using the overload that takes a buffer, message size, and socket flags.
public static int SendReceiveTest3(Socket server)
{
    byte[] msg = Encoding.UTF8.GetBytes("This is a test");
    byte[] bytes = new byte[256];
    try
    {
        // Blocks until send returns.
        int i = server.Send(msg, msg.Length, SocketFlags.None);
        Console.WriteLine("Sent {0} bytes.", i);

        // Get reply from the server.
        int byteCount = server.Receive(bytes, bytes.Length, SocketFlags.None);
        if (byteCount > 0)
            Console.WriteLine(Encoding.UTF8.GetString(bytes, 0, byteCount));
    }
    catch (SocketException e)
    {
        Console.WriteLine("{0} Error code: {1}.", e.Message, e.ErrorCode);
        return (e.ErrorCode);
    }
    return 0;
}

' Displays sending with a connected socket
' using the overload that takes a buffer, message size, and socket flags.
Public Shared Function SendReceiveTest3(ByVal server As Socket) As Integer 
    Dim msg As Byte() = Encoding.UTF8.GetBytes("This is a test")
    Dim bytes(255) As Byte
    Try
        ' Blocks until send returns.
        Dim i As Integer = server.Send(msg, msg.Length, SocketFlags.None)
        Console.WriteLine("Sent {0} bytes.", i)
        
        ' Get reply from the server.
        Dim byteCount As Integer = server.Receive(bytes, server.Available, SocketFlags.None)
        If byteCount > 0 Then
            Console.WriteLine(Encoding.UTF8.GetString(bytes))
        End If
    Catch e As SocketException
        Console.WriteLine("{0} Error code: {1}.", e.Message, e.ErrorCode)
        Return e.ErrorCode
    End Try
    Return 0

End Function 'SendReceiveTest3