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

   1 //
   2 // System.Net.NetworkInformation.GatewayIPAddressInformationCollection
   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.Collections;
  30 using System.Collections.Generic;
  31 using System.Runtime.InteropServices;
  32
  33 namespace System.Net.NetworkInformation {
  34         public class GatewayIPAddressInformationCollection : ICollection<GatewayIPAddressInformation>, IEnumerable<GatewayIPAddressInformation>, IEnumerable {
  35                 List<GatewayIPAddressInformation> list = new List<GatewayIPAddressInformation> ();
  36
  37                 protected GatewayIPAddressInformationCollection ()
  38                 {
  39                 }
  40
  41                 public virtual void Add (GatewayIPAddressInformation address)
  42                 {
  43                         if (IsReadOnly)
  44                                 throw new NotSupportedException ("The collection is read-only.");
  45                         list.Add (address);
  46                 }
  47
  48                 public virtual void Clear ()
  49                 {
  50                         if (IsReadOnly)
  51                                 throw new NotSupportedException ("The collection is read-only.");
  52                         list.Clear ();
  53                 }
  54
  55                 public virtual bool Contains (GatewayIPAddressInformation address)
  56                 {
  57                         return list.Contains (address);
  58                 }
  59
  60                 public virtual void CopyTo (GatewayIPAddressInformation [] array, int offset)
  61                 {
  62                         list.CopyTo (array, offset);
  63                 }
  64
  65                 public virtual IEnumerator<GatewayIPAddressInformation> GetEnumerator ()
  66                 {
  67                         return ((IEnumerable<GatewayIPAddressInformation>)list).GetEnumerator ();
  68                 }
  69
  70                 public virtual bool Remove (GatewayIPAddressInformation address)
  71                 {
  72                         if (IsReadOnly)
  73                                 throw new NotSupportedException ("The collection is read-only.");
  74                         return list.Remove (address);
  75                 }
  76
  77                 IEnumerator IEnumerable.GetEnumerator ()
  78                 {
  79                         return list.GetEnumerator ();
  80                 }
  81
  82                 public virtual int Count {
  83                         get { return list.Count; }
  84                 }
  85
  86                 public virtual bool IsReadOnly {
  87                         get { return true; }
  88                 }
  89
  90                 public virtual GatewayIPAddressInformation this [int index] {
  91                         get { return list [index]; }
  92                 }
  93         }
  94
  95         class Win32GatewayIPAddressInformationCollection : GatewayIPAddressInformationCollection
  96         {
  97                 public static readonly Win32GatewayIPAddressInformationCollection Empty = new Win32GatewayIPAddressInformationCollection (true);
  98
  99                 bool is_readonly;
 100
 101                 private Win32GatewayIPAddressInformationCollection (bool isReadOnly)
 102                 {
 103                         this.is_readonly = isReadOnly;
 104                 }
 105
 106                 public Win32GatewayIPAddressInformationCollection (params Win32_IP_ADDR_STRING [] al)
 107                 {
 108                         foreach (Win32_IP_ADDR_STRING a in al) {
 109                                 if (String.IsNullOrEmpty (a.IpAddress))
 110                                         continue;
 111                                 Add (new GatewayIPAddressInformationImpl (IPAddress.Parse (a.IpAddress)));
 112                                 AddSubsequently (a.Next);
 113                         }
 114                         is_readonly = true;
 115                 }
 116
 117                 void AddSubsequently (IntPtr head)
 118                 {
 119                         Win32_IP_ADDR_STRING a;
 120                         for (IntPtr p = head; p != IntPtr.Zero; p = a.Next) {
 121                                 a = (Win32_IP_ADDR_STRING) Marshal.PtrToStructure (p, typeof (Win32_IP_ADDR_STRING));
 122                                 Add (new GatewayIPAddressInformationImpl (IPAddress.Parse (a.IpAddress)));
 123                         }
 124                 }
 125
 126                 public override bool IsReadOnly {
 127                         get { return is_readonly; }
 128                 }
 129         }
 130
 131         class UnixGatewayIPAddressInformationCollection : GatewayIPAddressInformationCollection
 132         {
 133                 public static readonly UnixGatewayIPAddressInformationCollection Empty = new UnixGatewayIPAddressInformationCollection (true);
 134
 135                 bool is_readonly;
 136
 137                 private UnixGatewayIPAddressInformationCollection (bool isReadOnly)
 138                 {
 139                         this.is_readonly = isReadOnly;
 140                 }
 141
 142                 public UnixGatewayIPAddressInformationCollection (IPAddressCollection col)
 143                 {
 144                         foreach (IPAddress a in col)
 145                                 Add (new GatewayIPAddressInformationImpl (a));
 146                         this.is_readonly = true;
 147                 }
 148
 149                 public override bool IsReadOnly {
 150                         get { return is_readonly; }
 151                 }
 152         }
 153 }
 154