mcs/class/Mono.Posix/Mono.Unix/UnixClient.cs

   1 //
   2 // UnixListener.cs
   3 //
   4 // Authors:
   5 //      Joe Shaw (joeshaw@novell.com)
   6 //
   7 // Copyright (C) 2004-2005 Novell, Inc.
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining a
  12 // copy of this software and associated documentation files (the "Software"),
  13 // to deal in the Software without restriction, including without limitation
  14 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  15 // and/or sell copies of the Software, and to permit persons to whom the
  16 // Software is furnished to do so, subject to the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be included in
  19 // all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  22 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  23 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  24 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  25 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  26 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  27 // DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System;
  31 using System.IO;
  32 using System.Net;
  33 using System.Net.Sockets;
  34 using System.Runtime.InteropServices;
  35
  36 namespace Mono.Unix {
  37
  38         public class UnixClient : MarshalByRefObject, IDisposable {
  39                 NetworkStream stream;
  40                 Socket client;
  41                 bool disposed;
  42
  43                 public UnixClient ()
  44                 {
  45                         if (client != null) {
  46                                 client.Close ();
  47                                 client = null;
  48                         }
  49
  50                         client = new Socket (AddressFamily.Unix, SocketType.Stream, 0);
  51                 }
  52
  53                 public UnixClient (string path) : this ()
  54                 {
  55                         if (path == null)
  56                                 throw new ArgumentNullException ("ep");
  57
  58                         Connect (path);
  59                 }
  60
  61                 public UnixClient (UnixEndPoint ep) : this ()
  62                 {
  63                         if (ep == null)
  64                                 throw new ArgumentNullException ("ep");
  65
  66                         Connect (ep);
  67                 }
  68
  69                 // UnixListener uses this when accepting a connection.
  70                 internal UnixClient (Socket sock)
  71                 {
  72                         Client = sock;
  73                 }
  74
  75                 public
  76                 Socket Client {
  77                         get { return client; }
  78                         set {
  79                                 client = value;
  80                                 stream = null;
  81                         }
  82                 }
  83
  84                 public PeerCred PeerCredential {
  85                         get {
  86                                 CheckDisposed ();
  87                                 return new PeerCred (client);
  88                         }
  89                 }
  90
  91                 public LingerOption LingerState {
  92                         get {
  93                                 CheckDisposed ();
  94                                 return (LingerOption) client.GetSocketOption (SocketOptionLevel.Socket,
  95                                                                               SocketOptionName.Linger);
  96                         }
  97
  98                         set {
  99                                 CheckDisposed ();
 100                                 client.SetSocketOption (SocketOptionLevel.Socket,
 101                                                         SocketOptionName.Linger, value);
 102                         }
 103                 }
 104
 105                 public int ReceiveBufferSize {
 106                         get {
 107                                 CheckDisposed ();
 108                                 return (int) client.GetSocketOption (SocketOptionLevel.Socket,
 109                                                                      SocketOptionName.ReceiveBuffer);
 110                         }
 111
 112                         set {
 113                                 CheckDisposed ();
 114                                 client.SetSocketOption (SocketOptionLevel.Socket,
 115                                                         SocketOptionName.ReceiveBuffer, value);
 116                         }
 117                 }
 118
 119                 public int ReceiveTimeout {
 120                         get {
 121                                 CheckDisposed ();
 122                                 return (int) client.GetSocketOption (SocketOptionLevel.Socket,
 123                                                                      SocketOptionName.ReceiveTimeout);
 124                         }
 125
 126                         set {
 127                                 CheckDisposed ();
 128                                 client.SetSocketOption (SocketOptionLevel.Socket,
 129                                                         SocketOptionName.ReceiveTimeout, value);
 130                         }
 131                 }
 132
 133                 public int SendBufferSize {
 134                         get {
 135                                 CheckDisposed ();
 136                                 return (int) client.GetSocketOption (SocketOptionLevel.Socket,
 137                                                                      SocketOptionName.SendBuffer);
 138                         }
 139
 140                         set {
 141                                 CheckDisposed ();
 142                                 client.SetSocketOption (SocketOptionLevel.Socket,
 143                                                         SocketOptionName.SendBuffer, value);
 144                         }
 145                 }
 146
 147                 public int SendTimeout {
 148                         get {
 149                                 CheckDisposed ();
 150                                 return (int) client.GetSocketOption (SocketOptionLevel.Socket,
 151                                                                      SocketOptionName.SendTimeout);
 152                         }
 153
 154                         set {
 155                                 CheckDisposed ();
 156                                 client.SetSocketOption (SocketOptionLevel.Socket,
 157                                                         SocketOptionName.SendTimeout, value);
 158                         }
 159                 }
 160
 161                 public void Close ()
 162                 {
 163                         CheckDisposed ();
 164                         Dispose ();
 165                 }
 166
 167                 public void Connect (UnixEndPoint remoteEndPoint)
 168                 {
 169                         CheckDisposed ();
 170                         client.Connect (remoteEndPoint);
 171                         stream = new NetworkStream (client, true);
 172                 }
 173
 174                 public void Connect (string path)
 175                 {
 176                         CheckDisposed ();
 177                         Connect (new UnixEndPoint (path));
 178                 }
 179
 180                 public void Dispose ()
 181                 {
 182                         Dispose (true);
 183                         GC.SuppressFinalize (this);
 184                 }
 185
 186                 protected virtual void Dispose (bool disposing)
 187                 {
 188                         if (disposed)
 189                                 return;
 190
 191                         if (disposing) {
 192                                 // release managed resources
 193                                 NetworkStream s = stream;
 194                                 stream = null;
 195                                 if (s != null) {
 196                                         // This closes the socket as well, as the NetworkStream
 197                                         // owns the socket.
 198                                         s.Close();
 199                                         s = null;
 200                                 } else if (client != null){
 201                                         client.Close ();
 202                                 }
 203                                 client = null;
 204                         }
 205
 206                         disposed = true;
 207                 }
 208
 209                 public NetworkStream GetStream ()
 210                 {
 211                         CheckDisposed ();
 212                         if (stream == null)
 213                                 stream = new NetworkStream (client, true);
 214
 215                         return stream;
 216                 }
 217
 218                 void CheckDisposed ()
 219                 {
 220                         if (disposed)
 221                                 throw new ObjectDisposedException (GetType().FullName);
 222                 }
 223
 224                 ~UnixClient ()
 225                 {
 226                         Dispose (false);
 227                 }
 228         }
 229 }
 230