mcs/class/System/System.Net.NetworkInformation/MulticastIPAddressInformationCollection.cs

   1 //
   2 // System.Net.NetworkInformation.MulticastIPAddressInformationCollection
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@novell.com)
   6 //      Atsushi Enomoto (atsushi@ximian.com)
   7 //      Eric Butler (eric@extremeboredom.net)
   8 //
   9 // Copyright (c) 2006-2007 Novell, Inc. (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 using System.Collections;
  31 using System.Collections.Generic;
  32 using System.Runtime.InteropServices;
  33
  34 namespace System.Net.NetworkInformation {
  35         public class MulticastIPAddressInformationCollection : ICollection<MulticastIPAddressInformation>, IEnumerable<MulticastIPAddressInformation>, IEnumerable {
  36                 List<MulticastIPAddressInformation> list = new List<MulticastIPAddressInformation> ();
  37
  38                 protected internal MulticastIPAddressInformationCollection ()
  39                 {
  40                 }
  41
  42                 public virtual void Add (MulticastIPAddressInformation address)
  43                 {
  44                         if (IsReadOnly)
  45                                 throw new NotSupportedException ("The collection is read-only.");
  46                         list.Add (address);
  47                 }
  48
  49                 public virtual void Clear ()
  50                 {
  51                         if (IsReadOnly)
  52                                 throw new NotSupportedException ("The collection is read-only.");
  53                         list.Clear ();
  54                 }
  55
  56                 public virtual bool Contains (MulticastIPAddressInformation address)
  57                 {
  58                         return list.Contains (address);
  59                 }
  60
  61                 public virtual void CopyTo (MulticastIPAddressInformation [] array, int offset)
  62                 {
  63                         list.CopyTo (array, offset);
  64                 }
  65
  66                 public virtual IEnumerator<MulticastIPAddressInformation> GetEnumerator ()
  67                 {
  68                         return ((IEnumerable<MulticastIPAddressInformation>)list).GetEnumerator ();
  69                 }
  70
  71                 public virtual bool Remove (MulticastIPAddressInformation address)
  72                 {
  73                         if (IsReadOnly)
  74                                 throw new NotSupportedException ("The collection is read-only.");
  75                         return list.Remove (address);
  76                 }
  77
  78                 IEnumerator IEnumerable.GetEnumerator ()
  79                 {
  80                         return list.GetEnumerator ();
  81                 }
  82
  83                 public virtual int Count {
  84                         get { return list.Count; }
  85                 }
  86
  87                 public virtual bool IsReadOnly {
  88                         get { return true; }
  89                 }
  90
  91                 public virtual MulticastIPAddressInformation this [int index] {
  92                         get { return list [index]; }
  93                 }
  94         }
  95
  96         class MulticastIPAddressInformationImplCollection : MulticastIPAddressInformationCollection
  97         {
  98                 public static readonly MulticastIPAddressInformationImplCollection Empty = new MulticastIPAddressInformationImplCollection (true);
  99
 100                 bool is_readonly;
 101
 102                 // for static methods
 103                 MulticastIPAddressInformationImplCollection (bool isReadOnly)
 104                 {
 105                         is_readonly = isReadOnly;
 106                 }
 107
 108                 public override bool IsReadOnly {
 109                         get { return is_readonly; }
 110                 }
 111
 112 #if !MOBILE
 113                 public static MulticastIPAddressInformationCollection Win32FromMulticast (IntPtr ptr)
 114                 {
 115                         MulticastIPAddressInformationImplCollection c = new MulticastIPAddressInformationImplCollection (false);
 116                         Win32_IP_ADAPTER_MULTICAST_ADDRESS a;
 117                         for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
 118                                 a = (Win32_IP_ADAPTER_MULTICAST_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_MULTICAST_ADDRESS));
 119                                 c.Add (new MulticastIPAddressInformationImpl (
 120                                        a.Address.GetIPAddress (),
 121                                        a.LengthFlags.IsDnsEligible,
 122                                        a.LengthFlags.IsTransient));
 123                         }
 124                         c.is_readonly = true;
 125                         return c;
 126                 }
 127 #endif
 128
 129                 public static MulticastIPAddressInformationImplCollection LinuxFromList (List<IPAddress> addresses)
 130                 {
 131                         MulticastIPAddressInformationImplCollection c = new MulticastIPAddressInformationImplCollection (false);
 132                         foreach (IPAddress address in addresses) {
 133                                 c.Add (new MulticastIPAddressInformationImpl (
 134                                         address,
 135                                         true,
 136                                         false));
 137                         }
 138                         c.is_readonly = true;
 139                         return c;
 140                 }
 141         }
 142 }