class/System/System.Net.NetworkInformation/UnicastIPAddressInformationCollection.cs

   1 //
   2 // System.Net.NetworkInformation.UnicastIPAddressInformationCollection
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@novell.com)
   6 //      Atsushi Enomoto (atsushi@ximian.com)
   7 //
   8 // Copyright (c) 2006-2007 Novell, Inc. (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29 #if NET_2_0
  30 using System;
  31 using System.Collections;
  32 using System.Collections.Generic;
  33 using System.Runtime.InteropServices;
  34
  35 namespace System.Net.NetworkInformation {
  36         public class UnicastIPAddressInformationCollection : ICollection<UnicastIPAddressInformation>,
  37                                                 IEnumerable<UnicastIPAddressInformation> {
  38
  39                 List<UnicastIPAddressInformation> list = new List<UnicastIPAddressInformation> ();
  40
  41                 protected internal UnicastIPAddressInformationCollection ()
  42                 {
  43                 }
  44
  45                 public virtual void Add (UnicastIPAddressInformation address)
  46                 {
  47                         if (IsReadOnly)
  48                                 throw new NotSupportedException ("The collection is read-only.");
  49                         list.Add (address);
  50                 }
  51
  52                 public virtual void Clear ()
  53                 {
  54                         if (IsReadOnly)
  55                                 throw new NotSupportedException ("The collection is read-only.");
  56                         list.Clear ();
  57                 }
  58
  59                 public virtual bool Contains (UnicastIPAddressInformation address)
  60                 {
  61                         return list.Contains (address);
  62                 }
  63
  64                 public virtual void CopyTo (UnicastIPAddressInformation [] array, int offset)
  65                 {
  66                         list.CopyTo (array, offset);
  67                 }
  68
  69                 public virtual IEnumerator<UnicastIPAddressInformation> GetEnumerator ()
  70                 {
  71                         return ((IEnumerable<UnicastIPAddressInformation>)list).GetEnumerator ();
  72                 }
  73
  74                 public virtual bool Remove (UnicastIPAddressInformation address)
  75                 {
  76                         if (IsReadOnly)
  77                                 throw new NotSupportedException ("The collection is read-only.");
  78                         return list.Remove (address);
  79                 }
  80
  81                 IEnumerator IEnumerable.GetEnumerator ()
  82                 {
  83                         return list.GetEnumerator ();
  84                 }
  85
  86                 public virtual int Count {
  87                         get { return list.Count; }
  88                 }
  89
  90                 public virtual bool IsReadOnly {
  91                         get { return true; }
  92                 }
  93
  94                 public virtual UnicastIPAddressInformation this [int index] {
  95                         get { return list [index]; }
  96                 }
  97         }
  98
  99         class UnicastIPAddressInformationImplCollection : UnicastIPAddressInformationCollection
 100         {
 101                 public static readonly UnicastIPAddressInformationImplCollection Empty = new UnicastIPAddressInformationImplCollection (true);
 102
 103                 bool is_readonly;
 104
 105                 // for static methods
 106                 UnicastIPAddressInformationImplCollection (bool isReadOnly)
 107                 {
 108                         is_readonly = isReadOnly;
 109                 }
 110
 111                 public override bool IsReadOnly {
 112                         get { return is_readonly; }
 113                 }
 114
 115                 public static UnicastIPAddressInformationCollection Win32FromUnicast (int ifIndex, IntPtr ptr)
 116                 {
 117                         UnicastIPAddressInformationImplCollection c = new UnicastIPAddressInformationImplCollection (false);
 118                         Win32_IP_ADAPTER_UNICAST_ADDRESS a;
 119                         for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
 120                                 a = (Win32_IP_ADAPTER_UNICAST_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_UNICAST_ADDRESS));
 121                                 c.Add (new Win32UnicastIPAddressInformation (ifIndex, a));
 122                         }
 123                         c.is_readonly = true;
 124                         return c;
 125                 }
 126
 127                 public static UnicastIPAddressInformationCollection LinuxFromList (List<IPAddress> addresses)
 128                 {
 129                         UnicastIPAddressInformationImplCollection c = new UnicastIPAddressInformationImplCollection (false);
 130                         foreach (IPAddress address in addresses) {
 131                                 c.Add (new LinuxUnicastIPAddressInformation (address));
 132                         }
 133                         c.is_readonly = true;
 134                         return c;
 135                 }
 136         }
 137 }
 138 #endif
 139