138 lines
4.4 KiB
C#
138 lines
4.4 KiB
C#
//
|
|
// System.Runtime.Remoting.Channels.Ipc.Win32.IpcTransport.cs
|
|
//
|
|
// Author: Robert Jordan (robertj@gmx.net)
|
|
//
|
|
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
|
|
//
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining
|
|
// a copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to
|
|
// permit persons to whom the Software is furnished to do so, subject to
|
|
// the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be
|
|
// included in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
//
|
|
|
|
|
|
using System;
|
|
using System.IO;
|
|
using System.Runtime.Remoting;
|
|
using System.Runtime.Remoting.Channels;
|
|
using System.Runtime.Remoting.Messaging;
|
|
using System.Runtime.Serialization.Formatters.Binary;
|
|
|
|
namespace System.Runtime.Remoting.Channels.Ipc.Win32
|
|
{
|
|
/// <summary>
|
|
/// IPC transport helper
|
|
/// </summary>
|
|
internal class IpcTransport
|
|
{
|
|
readonly NamedPipeSocket socket;
|
|
readonly BinaryFormatter formatter = new BinaryFormatter();
|
|
|
|
/// <summary>
|
|
/// Creates a new object.
|
|
/// </summary>
|
|
/// <param name="socket">The named pipe.</param>
|
|
public IpcTransport(NamedPipeSocket socket)
|
|
{
|
|
this.socket = socket;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Writes a request.
|
|
/// </summary>
|
|
/// <param name="header"></param>
|
|
/// <param name="requestStream"></param>
|
|
public void Write(ITransportHeaders header, Stream requestStream)
|
|
{
|
|
Stream bs = socket.GetStream();
|
|
|
|
MemoryStream m = new MemoryStream();
|
|
formatter.Serialize(m, header);
|
|
m.Position = 0;
|
|
byte[] bytes = BitConverter.GetBytes((int)m.Length);
|
|
bs.Write(bytes, 0, bytes.Length);
|
|
m.WriteTo(bs);
|
|
|
|
try
|
|
{
|
|
bytes = BitConverter.GetBytes((int)requestStream.Length);
|
|
bs.Write(bytes, 0, bytes.Length);
|
|
IpcChannelHelper.Copy(requestStream, bs);
|
|
}
|
|
catch
|
|
{
|
|
bs.Write(bytes, 0, bytes.Length);
|
|
}
|
|
|
|
bs.Flush();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Reads a response.
|
|
/// </summary>
|
|
/// <param name="headers"></param>
|
|
/// <param name="responseStream"></param>
|
|
public void Read(out ITransportHeaders headers, out Stream responseStream)
|
|
{
|
|
byte[] bytes;
|
|
long length;
|
|
|
|
bytes = BitConverter.GetBytes(int.MaxValue);
|
|
socket.Receive(bytes, 0, bytes.Length);
|
|
length = BitConverter.ToInt32(bytes, 0);
|
|
|
|
if (length != int.MaxValue && length > 0)
|
|
{
|
|
bytes = new byte[length];
|
|
socket.Receive(bytes, 0, (int)length);
|
|
|
|
MemoryStream m = new MemoryStream(bytes);
|
|
headers = (ITransportHeaders) formatter.Deserialize(m);
|
|
}
|
|
else
|
|
{
|
|
headers = new TransportHeaders();
|
|
}
|
|
|
|
bytes = BitConverter.GetBytes(int.MaxValue);
|
|
socket.Receive(bytes, 0, bytes.Length);
|
|
length = BitConverter.ToInt32(bytes, 0);
|
|
if (length != int.MaxValue && length > 0)
|
|
{
|
|
bytes = new byte[length];
|
|
socket.Receive(bytes, 0, (int)length);
|
|
responseStream = new MemoryStream(bytes);
|
|
}
|
|
else
|
|
{
|
|
responseStream = new MemoryStream(new byte[0]);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Closes the unterlying named pipe socket.
|
|
/// </summary>
|
|
public void Close()
|
|
{
|
|
socket.Close();
|
|
}
|
|
}
|
|
}
|
|
|