/// <summary>
/// This function is used to cancel the connection for specified connection string.
/// </summary>
/// <param name="connectionString">specified connection string</param>
public static void Cancel(string connectionString)
{
AsyncTcpManager.Remove(connectionString);
}
/// <summary>
/// open connection with timeout
/// </summary>
/// <param name="timeout">in milliseconds</param>
public void Open(int timeout)
{
DateTime start = DateTime.Now;
DateTime end = start;
lock (this)
{
ConnectionPool pool = AsyncTcpManager.Get(this, base.ConnectionString);
_TcpItem = pool.GetOne();
}
while ((end - start).TotalMilliseconds <= timeout)
{
if (end != start)
{
//not first time
lock (this)
{
//Try to find a connected tcp item to use
ConnectionPool pool = AsyncTcpManager.Get(this, base.ConnectionString);
try
{
TcpItem tcpItem = pool.TryGetAConnectedItem();
if (tcpItem != null)
{
_TcpItem = tcpItem;
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
}
if (_TcpItem.TcpClient.Closed)
{
if (!_TcpItem.TryGetConnecting())
{
try
{
_TcpItem.Enter();
_TcpItem.ServerBusy = false;
Hubble.Framework.Net.TcpClient tcpClient;
InitTcpClient(out tcpClient);
tcpClient.ReceiveTimeout = 0;
TryConnectTimeout = 1;
CommandReportNoCache = false;
base.Open(tcpClient);
if (base.ServerBusy)
{
_TcpItem.ServerBusy = true;
System.Threading.Thread.Sleep(20);
end = DateTime.Now;
}
else
{
tcpClient.SetToAsync();
_TcpItem.TcpClient = tcpClient;
return;
}
}
finally
{
_TcpItem.Connecting = false;
_TcpItem.Leave();
}
}
else
{
System.Threading.Thread.Sleep(20);
end = DateTime.Now;
}
}
else
{
return;
}
}
throw new System.IO.IOException("Connection timeout");
}
