You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
3.5 KiB
142 lines
3.5 KiB
// Copyright (c) 2004-2007 MySQL AB
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License version 2 as published by
|
|
// the Free Software Foundation
|
|
//
|
|
// There are special exceptions to the terms and conditions of the GPL
|
|
// as it is applied to this software. View the full text of the
|
|
// exception in file EXCEPTIONS in the directory of this software
|
|
// distribution.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
using System;
|
|
using System.IO;
|
|
using System.Net;
|
|
using System.Net.Sockets;
|
|
using System.Collections;
|
|
|
|
namespace MySql.Data.Common
|
|
{
|
|
/// <summary>
|
|
/// Summary description for MySqlSocket.
|
|
/// </summary>
|
|
internal sealed class SocketStream : Stream
|
|
{
|
|
private Socket socket;
|
|
|
|
public SocketStream(AddressFamily addressFamily, SocketType socketType, ProtocolType protocol)
|
|
{
|
|
socket = new Socket(addressFamily, socketType, protocol);
|
|
}
|
|
|
|
#region Properties
|
|
|
|
public Socket Socket
|
|
{
|
|
get { return socket; }
|
|
}
|
|
|
|
public override bool CanRead
|
|
{
|
|
get { return true; }
|
|
}
|
|
|
|
public override bool CanSeek
|
|
{
|
|
get { return false; }
|
|
}
|
|
|
|
public override bool CanWrite
|
|
{
|
|
get { return true; }
|
|
}
|
|
|
|
public override long Length
|
|
{
|
|
get { return 0; }
|
|
}
|
|
|
|
public override long Position
|
|
{
|
|
get { return 0; }
|
|
set { throw new NotSupportedException("SocketStream does not support seek"); }
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Stream Implementation
|
|
|
|
public override void Flush()
|
|
{
|
|
}
|
|
|
|
public override int Read(byte[] buffer, int offset, int count)
|
|
{
|
|
return socket.Receive(buffer, offset, count, SocketFlags.None);
|
|
}
|
|
|
|
public override long Seek(long offset, SeekOrigin origin)
|
|
{
|
|
throw new NotSupportedException("SocketStream does not support seek");
|
|
}
|
|
|
|
public override void SetLength(long value)
|
|
{
|
|
}
|
|
|
|
public override void Write(byte[] buffer, int offset, int count)
|
|
{
|
|
socket.Send(buffer, offset, count, SocketFlags.None);
|
|
}
|
|
|
|
|
|
#endregion
|
|
|
|
public bool Connect(EndPoint remoteEP, int timeout)
|
|
{
|
|
// set the socket to non blocking
|
|
socket.Blocking = false;
|
|
|
|
// then we star the connect
|
|
SocketAddress addr = remoteEP.Serialize();
|
|
byte[] buff = new byte[addr.Size];
|
|
for (int i=0; i<addr.Size; i++)
|
|
buff[i] = addr[i];
|
|
|
|
NativeMethods.connect(socket.Handle, buff, addr.Size);
|
|
int wsaerror = NativeMethods.WSAGetLastError();
|
|
if (wsaerror != 10035)
|
|
{
|
|
// this is probably an IPV6 address
|
|
if (wsaerror == 10047)
|
|
return false;
|
|
throw new SocketException(wsaerror);
|
|
}
|
|
|
|
// next we wait for our connect timeout or until the socket is connected
|
|
ArrayList write = new ArrayList();
|
|
write.Add(socket);
|
|
ArrayList error = new ArrayList();
|
|
error.Add(socket);
|
|
|
|
Socket.Select(null, write, error, timeout*1000*1000);
|
|
|
|
if (write.Count == 0) return false;
|
|
|
|
// set socket back to blocking mode
|
|
socket.Blocking = true;
|
|
return true;
|
|
}
|
|
|
|
|
|
}
|
|
}
|
|
|