2 // System.Runtime.Remoting.Channels.Ipc.Win32.IpcTransport.cs
4 // Author: Robert Jordan (robertj@gmx.net)
6 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 using System.Runtime.Remoting;
34 using System.Runtime.Remoting.Channels;
35 using System.Runtime.Remoting.Messaging;
36 using System.Runtime.Serialization.Formatters.Binary;
38 namespace System.Runtime.Remoting.Channels.Ipc.Win32
41 /// IPC transport helper
43 internal class IpcTransport
45 readonly NamedPipeSocket socket;
46 readonly BinaryFormatter formatter = new BinaryFormatter();
49 /// Creates a new object.
51 /// <param name="socket">The named pipe.</param>
52 public IpcTransport(NamedPipeSocket socket)
60 /// <param name="header"></param>
61 /// <param name="requestStream"></param>
62 public void Write(ITransportHeaders header, Stream requestStream)
64 Stream bs = socket.GetStream();
66 MemoryStream m = new MemoryStream();
67 formatter.Serialize(m, header);
69 byte[] bytes = BitConverter.GetBytes((int)m.Length);
70 bs.Write(bytes, 0, bytes.Length);
75 bytes = BitConverter.GetBytes((int)requestStream.Length);
76 bs.Write(bytes, 0, bytes.Length);
77 IpcChannelHelper.Copy(requestStream, bs);
81 bs.Write(bytes, 0, bytes.Length);
90 /// <param name="headers"></param>
91 /// <param name="responseStream"></param>
92 public void Read(out ITransportHeaders headers, out Stream responseStream)
97 bytes = BitConverter.GetBytes(int.MaxValue);
98 socket.Receive(bytes, 0, bytes.Length);
99 length = BitConverter.ToInt32(bytes, 0);
101 if (length != int.MaxValue && length > 0)
103 bytes = new byte[length];
104 socket.Receive(bytes, 0, (int)length);
106 MemoryStream m = new MemoryStream(bytes);
107 headers = (ITransportHeaders) formatter.Deserialize(m);
111 headers = new TransportHeaders();
114 bytes = BitConverter.GetBytes(int.MaxValue);
115 socket.Receive(bytes, 0, bytes.Length);
116 length = BitConverter.ToInt32(bytes, 0);
117 if (length != int.MaxValue && length > 0)
119 bytes = new byte[length];
120 socket.Receive(bytes, 0, (int)length);
121 responseStream = new MemoryStream(bytes);
125 responseStream = new MemoryStream(new byte[0]);
130 /// Closes the unterlying named pipe socket.