MulticastIPAddressInformationCollection.cs :  » 2.6.4-mono-.net-core » System.Net » System » Net » NetworkInformation » C# / CSharp Open Source

//
// System.Net.NetworkInformation.MulticastIPAddressInformationCollection
//
// Authors:
//  Gonzalo Paniagua Javier (gonzalo@novell.com)
//  Atsushi Enomoto (atsushi@ximian.com)
//  Eric Butler (eric@extremeboredom.net)
//
// Copyright (c) 2006-2007 Novell, Inc. (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_0
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;

namespace System.Net.NetworkInformation{
  public class MulticastIPAddressInformationCollection : ICollection<MulticastIPAddressInformation>, IEnumerable<MulticastIPAddressInformation>, IEnumerable {
    List<MulticastIPAddressInformation> list = new List<MulticastIPAddressInformation> ();
    
    protected internal MulticastIPAddressInformationCollection ()
    {
    }

    public virtual void Add (MulticastIPAddressInformation address)
    {
      if (IsReadOnly)
        throw new NotSupportedException ("The collection is read-only.");
      list.Add (address);
    }

    public virtual void Clear ()
    {
      if (IsReadOnly)
        throw new NotSupportedException ("The collection is read-only.");
      list.Clear ();
    }

    public virtual bool Contains (MulticastIPAddressInformation address)
    {
      return list.Contains (address);
    }

    public virtual void CopyTo (MulticastIPAddressInformation [] array, int offset)
    {
      list.CopyTo (array, offset);
    }

    public virtual IEnumerator<MulticastIPAddressInformation> GetEnumerator ()
    {
      return ((IEnumerable<MulticastIPAddressInformation>)list).GetEnumerator ();
    }

    public virtual bool Remove (MulticastIPAddressInformation address)
    {
      if (IsReadOnly)
        throw new NotSupportedException ("The collection is read-only.");
      return list.Remove (address);
    }

    IEnumerator IEnumerable.GetEnumerator ()
    {
      return list.GetEnumerator ();
    }

    public virtual int Count {
      get { return list.Count; }
    }

    public virtual bool IsReadOnly {
      get { return true; }
    }

    public virtual MulticastIPAddressInformation this [int index] {
      get { return list [index]; }
    }
  }

  class MulticastIPAddressInformationImplCollection : MulticastIPAddressInformationCollection
  {
    public static readonly MulticastIPAddressInformationImplCollection Empty = new MulticastIPAddressInformationImplCollection (true);

    bool is_readonly;

    // for static methods
    MulticastIPAddressInformationImplCollection (bool isReadOnly)
    {
      is_readonly = isReadOnly;
    }

    public override bool IsReadOnly {
      get { return is_readonly; }
    }

    public static MulticastIPAddressInformationCollection Win32FromMulticast (IntPtr ptr)
    {
      MulticastIPAddressInformationImplCollection c = new MulticastIPAddressInformationImplCollection (false);
      Win32_IP_ADAPTER_MULTICAST_ADDRESS a;
      for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
        a = (Win32_IP_ADAPTER_MULTICAST_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_MULTICAST_ADDRESS));
        c.Add (new MulticastIPAddressInformationImpl (
               a.Address.GetIPAddress (),
               a.LengthFlags.IsDnsEligible,
               a.LengthFlags.IsTransient));
      }
      c.is_readonly = true;
      return c;
    }

    public static MulticastIPAddressInformationImplCollection LinuxFromList (List<IPAddress> addresses)
    {
      MulticastIPAddressInformationImplCollection c = new MulticastIPAddressInformationImplCollection (false);
      foreach (IPAddress address in addresses) {
        c.Add (new MulticastIPAddressInformationImpl (
          address,
          true,
          false));
      }
      c.is_readonly = true;
      return c;
    }
  }
}
#endif