mcs/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 using System;
  30 using System.Collections;
  31 using System.Collections.Generic;
  32 using System.Runtime.InteropServices;
  33
  34 namespace System.Net.NetworkInformation {
  35         public class UnicastIPAddressInformationCollection : ICollection<UnicastIPAddressInformation>,
  36                                                 IEnumerable<UnicastIPAddressInformation> {
  37
  38                 List<UnicastIPAddressInformation> list = new List<UnicastIPAddressInformation> ();
  39
  40                 protected internal UnicastIPAddressInformationCollection ()
  41                 {
  42                 }
  43
  44                 public virtual void Add (UnicastIPAddressInformation address)
  45                 {
  46                         if (IsReadOnly)
  47                                 throw new NotSupportedException ("The collection is read-only.");
  48                         list.Add (address);
  49                 }
  50
  51                 public virtual void Clear ()
  52                 {
  53                         if (IsReadOnly)
  54                                 throw new NotSupportedException ("The collection is read-only.");
  55                         list.Clear ();
  56                 }
  57
  58                 public virtual bool Contains (UnicastIPAddressInformation address)
  59                 {
  60                         return list.Contains (address);
  61                 }
  62
  63                 public virtual void CopyTo (UnicastIPAddressInformation [] array, int offset)
  64                 {
  65                         list.CopyTo (array, offset);
  66                 }
  67
  68                 public virtual IEnumerator<UnicastIPAddressInformation> GetEnumerator ()
  69                 {
  70                         return ((IEnumerable<UnicastIPAddressInformation>)list).GetEnumerator ();
  71                 }
  72
  73                 public virtual bool Remove (UnicastIPAddressInformation address)
  74                 {
  75                         if (IsReadOnly)
  76                                 throw new NotSupportedException ("The collection is read-only.");
  77                         return list.Remove (address);
  78                 }
  79
  80                 IEnumerator IEnumerable.GetEnumerator ()
  81                 {
  82                         return list.GetEnumerator ();
  83                 }
  84
  85                 public virtual int Count {
  86                         get { return list.Count; }
  87                 }
  88
  89                 public virtual bool IsReadOnly {
  90                         get { return true; }
  91                 }
  92
  93                 public virtual UnicastIPAddressInformation this [int index] {
  94                         get { return list [index]; }
  95                 }
  96         }
  97
  98         class UnicastIPAddressInformationImplCollection : UnicastIPAddressInformationCollection
  99         {
 100                 public static readonly UnicastIPAddressInformationImplCollection Empty = new UnicastIPAddressInformationImplCollection (true);
 101
 102                 bool is_readonly;
 103
 104                 // for static methods
 105                 UnicastIPAddressInformationImplCollection (bool isReadOnly)
 106                 {
 107                         is_readonly = isReadOnly;
 108                 }
 109
 110                 public override bool IsReadOnly {
 111                         get { return is_readonly; }
 112                 }
 113
 114                 public static UnicastIPAddressInformationCollection Win32FromUnicast (int ifIndex, IntPtr ptr)
 115                 {
 116                         UnicastIPAddressInformationImplCollection c = new UnicastIPAddressInformationImplCollection (false);
 117                         Win32_IP_ADAPTER_UNICAST_ADDRESS a;
 118                         for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
 119                                 a = (Win32_IP_ADAPTER_UNICAST_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_UNICAST_ADDRESS));
 120                                 c.Add (new Win32UnicastIPAddressInformation (ifIndex, a));
 121                         }
 122                         c.is_readonly = true;
 123                         return c;
 124                 }
 125
 126                 public static UnicastIPAddressInformationCollection LinuxFromList (List<IPAddress> addresses)
 127                 {
 128                         UnicastIPAddressInformationImplCollection c = new UnicastIPAddressInformationImplCollection (false);
 129                         foreach (IPAddress address in addresses) {
 130                                 c.Add (new LinuxUnicastIPAddressInformation (address));
 131                         }
 132                         c.is_readonly = true;
 133                         return c;
 134                 }
 135         }
 136 }
 137