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// ByteFX.Data data access components for .Net
// Copyright (C) 2002-2003 ByteFX, Inc.
// Copyright (C) 2003 PT Cakram Datalingga Duaribu (http://www.cdl2000.com)
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; 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 ByteFX.Data.Common;
using System.Threading;
#if __MonoCS__
using Mono.Posix;
#endif
namespace ByteFX.Data.MySqlClient
{
/// <summary>
/// Summary description for API.
/// </summary>
internal class MySqlStream : MultiHostStream
{
private Socket socket;
public MySqlStream( string hostList, int port, int readTimeOut, int connectTimeOut ) :
base( hostList, port, readTimeOut, connectTimeOut )
{
}
protected override void Error(string msg)
{
throw new MySqlException( msg, baseException );
}
protected override void TimeOut(MultiHostStreamErrorType error)
{
switch (error)
{
case MultiHostStreamErrorType.Connecting:
throw new MySqlException("Timed out creating a new MySqlConnection");
case MultiHostStreamErrorType.Reading:
throw new MySqlException("Timed out reading from MySql");
}
}
protected override bool CreateStream( IPAddress ip, string hostname, int port )
{
if (port == -1)
return CreatePipeStream(ip, hostname);
else
return CreateSocketStream(ip, port);
}
protected override bool CreateStream (string filename)
{
return CreateUnixSocketStream (filename);
}
private bool CreatePipeStream( IPAddress ip, string hostname )
{
string pipeName;
if (hostname.ToLower().Equals("localhost"))
pipeName = @"\\.\pipe\MySql";
else
pipeName = String.Format(@"\\{0}\pipe\MySql", ip.ToString());
try
{
stream = new NamedPipeStream(pipeName, FileAccess.ReadWrite);
return true;
}
catch (Exception ex)
{
baseException = ex;
return false;
}
}
private bool CreateSocketStream( IPAddress ip, int port )
{
socket = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
try
{
//
// Lets try to connect
IPEndPoint endPoint = new IPEndPoint( ip, port);
socket.Connect(endPoint);
socket.SetSocketOption( SocketOptionLevel.Tcp, SocketOptionName.NoDelay, 1 );
stream = new NetworkStream( socket, true );
socket.Blocking = false;
return true;
}
catch (Exception ex)
{
baseException = ex;
return false;
}
}
private bool CreateUnixSocketStream(string socketName)
{
#if __MonoCS__ && !WINDOWS
Socket socket = new Socket (AddressFamily.Unix, SocketType.Stream, ProtocolType.IP);
try
{
UnixEndPoint endPoint = new UnixEndPoint (socketName);
socket.Connect (endPoint);
stream = new NetworkStream (socket, true);
return true;
}
catch (Exception ex)
{
baseException = ex;
return false;
}
#else
baseException = new PlatformNotSupportedException ("This is not a Unix");
return false;
#endif
}
protected override bool DataAvailable
{
get
{
if (stream is NetworkStream)
return ((NetworkStream)stream).DataAvailable;
else return (stream as NamedPipeStream).DataAvailable;
}
}
public int ReadInt24()
{
byte[] bytes = new byte[3];
Read( bytes, 0, 3 );
return (bytes[0] + (bytes[1]*256) + (bytes[2]*256*256));
}
public override void Close()
{
stream.Close();
}
}
}
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