Socket.ExclusiveAddressUse 屬性

定義

命名空間:

System.Net.Sockets

組件:

System.Net.Sockets.dll

來源:

Socket.cs

取得或設定 Boolean 值，指定 Socket 是否只允許一個處理序繫結至通訊埠。

public:
 property bool ExclusiveAddressUse { bool get(); void set(bool value); };

public bool ExclusiveAddressUse { get; set; }

member this.ExclusiveAddressUse : bool with get, set

Public Property ExclusiveAddressUse As Boolean

屬性值

Boolean

如果 Socket 只允許一個通訊端繫結至特定通訊埠，則為 true，否則為 false。 默認值為 true Windows Server 2003 和 Windows XP Service Pack 2，以及 false 所有其他版本。

例外狀況

SocketException

嘗試存取通訊端時發生錯誤。

ObjectDisposedException

Socket 已關閉。

InvalidOperationException

已為這個 Bind(EndPoint) 呼叫 Socket。

範例

下列程式代碼範例示範 如何使用 ExclusiveAddressUse 屬性。

static void ConfigureTcpSocket(Socket^ tcpSocket)
{
     
    // Don't allow another socket to bind to this port.
    tcpSocket->ExclusiveAddressUse = true;
     
    // The socket will linger for 10 seconds after
    // Socket.Close is called.
    tcpSocket->LingerState = gcnew LingerOption(true, 10);
     
    // Disable the Nagle Algorithm for this tcp socket.
    tcpSocket->NoDelay = true;
     
    // Set the receive buffer size to 8k
    tcpSocket->ReceiveBufferSize = 8192;
     
    // Set the timeout for synchronous receive methods to
    // 1 second (1000 milliseconds.)
    tcpSocket->ReceiveTimeout = 1000;
     
    // Set the send buffer size to 8k.
    tcpSocket->SendBufferSize = 8192;
     
    // Set the timeout for synchronous send methods
    // to 1 second (1000 milliseconds.)
    tcpSocket->SendTimeout = 1000;
     
    // Set the Time To Live (TTL) to 42 router hops.
    tcpSocket->Ttl = 42;
    Console::WriteLine("Tcp Socket configured:");
    Console::WriteLine("  ExclusiveAddressUse {0}", 
        tcpSocket->ExclusiveAddressUse);
    Console::WriteLine("  LingerState {0}, {1}", 
        tcpSocket->LingerState->Enabled,
        tcpSocket->LingerState->LingerTime);
    Console::WriteLine("  NoDelay {0}",
        tcpSocket->NoDelay);
    Console::WriteLine("  ReceiveBufferSize {0}", 
        tcpSocket->ReceiveBufferSize);
    Console::WriteLine("  ReceiveTimeout {0}",
        tcpSocket->ReceiveTimeout);
    Console::WriteLine("  SendBufferSize {0}",
        tcpSocket->SendBufferSize);
    Console::WriteLine("  SendTimeout {0}",
        tcpSocket->SendTimeout);
    Console::WriteLine("  Ttl {0}",
        tcpSocket->Ttl);
    Console::WriteLine("  IsBound {0}",
        tcpSocket->IsBound);
    Console::WriteLine("");
}

static void ConfigureTcpSocket(Socket tcpSocket)
{
    // Don't allow another socket to bind to this port.
    tcpSocket.ExclusiveAddressUse = true;

    // The socket will linger for 10 seconds after
    // Socket.Close is called.
    tcpSocket.LingerState = new LingerOption (true, 10);

    // Disable the Nagle Algorithm for this tcp socket.
    tcpSocket.NoDelay = true;

    // Set the receive buffer size to 8k
    tcpSocket.ReceiveBufferSize = 8192;

    // Set the timeout for synchronous receive methods to
    // 1 second (1000 milliseconds.)
    tcpSocket.ReceiveTimeout = 1000;

    // Set the send buffer size to 8k.
    tcpSocket.SendBufferSize = 8192;

    // Set the timeout for synchronous send methods
    // to 1 second (1000 milliseconds.)
    tcpSocket.SendTimeout = 1000;

    // Set the Time To Live (TTL) to 42 router hops.
    tcpSocket.Ttl = 42;

    Console.WriteLine("Tcp Socket configured:");

    Console.WriteLine($"  ExclusiveAddressUse {tcpSocket.ExclusiveAddressUse}");

    Console.WriteLine($"  LingerState {tcpSocket.LingerState.Enabled}, {tcpSocket.LingerState.LingerTime}");

    Console.WriteLine($"  NoDelay {tcpSocket.NoDelay}");

    Console.WriteLine($"  ReceiveBufferSize {tcpSocket.ReceiveBufferSize}");

    Console.WriteLine($"  ReceiveTimeout {tcpSocket.ReceiveTimeout}");

    Console.WriteLine($"  SendBufferSize {tcpSocket.SendBufferSize}");

    Console.WriteLine($"  SendTimeout {tcpSocket.SendTimeout}");

    Console.WriteLine($"  Ttl {tcpSocket.Ttl}");

    Console.WriteLine($"  IsBound {tcpSocket.IsBound}");

    Console.WriteLine("");
}

備註

如果 ExclusiveAddressUse 為 false，則多個套接字可以使用 Bind 方法系結至特定埠;不過，只有其中一個套接字可以在傳送至埠的網路流量上執行作業。 如果有多個套接字嘗試使用 Bind(EndPoint) 方法系結至特定埠，則具有更特定IP位址的套接字會處理傳送至該埠的網路流量。

如果 為 trueExclusiveAddressUse ，則第一次使用 Bind 方法來嘗試系結至特定埠，不論因特網通訊協定 (IP) 地址為何，都會成功;所有後續使用 Bind 方法嘗試系結到該埠將會失敗，直到原始系結套接字終結為止。

呼叫 之前 Bind 必須設定這個屬性，否則 InvalidOperationException 會擲回 。