internal void FlushBatchNqData()
{
if (batchnqbuflen > 0)
{
netstm.WriteByte((byte)'N'); // Batched non-query.
XContent.SendXContent(netstm, batchnqbuf, batchnqbuflen);
int ib = netstm.ReadByte();
if (ib == (byte)'-')
{
string errmsg = XContent.ReceiveXString(netstm, buf);
throw new Exception("ExecuteNonQuery error: " + errmsg);
}
if (ib != (byte)'+')
{
throw new Exception("ExecuteNonQuery did not receive a success signal from service.");
}
}
batchnqbuflen = 0;
}
public override void Open()
{
if (isRIndexEnabled())
{
_OpenRIndex();
return;
}
try
{
if (state == ConnectionState.Open)
{
throw new Exception("Connnection is already open.");
}
string[] hosts = connstr.DataSource;
Random rnd = new Random(unchecked (System.DateTime.Now.Millisecond + System.Threading.Thread.CurrentThread.ManagedThreadId));
int index = rnd.Next() % hosts.Length;
string host = hosts[index];
for (int startindex = index; ;)
{
try
{
sock = new System.Net.Sockets.Socket(System.Net.Sockets.AddressFamily.InterNetwork, System.Net.Sockets.SocketType.Stream, System.Net.Sockets.ProtocolType.Tcp);
sock.Connect(host, 55902);
break;
}
catch
{
sock.Close();
index++;
if (index == hosts.Length)
{
index = 0;
}
if (index == startindex)
{
throw;
}
host = hosts[index];
}
}
netstm = new System.Net.Sockets.NetworkStream(sock);
netstm.WriteByte((byte)'o'); //Open connection.
if (buf.Length < 128)
{
buf = new byte[128];
}
Utils.Int64ToBytes(connstr.BatchSize, buf, 0);
XContent.SendXContent(netstm, buf, 8);
{
int optindex = 0;
Utils.Int64ToBytes(connstr.BlockSize, buf, optindex);
optindex += 8;
Utils.Int32ToBytes(connstr.QOLimit, buf, optindex);
optindex += 4;
buf[optindex] = (byte)(connstr.FaultTolerantExecution ? 1 : 0);
optindex += 1;
XContent.SendXContent(netstm, buf, optindex);
}
XContent.SendXContent(netstm, string.Join(";", hosts));
if (netstm.ReadByte() != (byte)'+')
{
throw new Exception("Cannot connect to host. Handshake failed with protocol.");
}
sessionID = XContent.ReceiveXString(netstm, buf);
state = ConnectionState.Open;
}
catch
{
Cleanup();
throw;
}
}