/// <exception cref="System.IO.IOException"></exception>
public virtual void Connect(ManagedHttpClientConnection conn, HttpHost host, IPEndPoint
localAddress, int connectTimeout, SocketConfig socketConfig, HttpContext context
)
{
Lookup <ConnectionSocketFactory> registry = GetSocketFactoryRegistry(context);
ConnectionSocketFactory sf = registry.Lookup(host.GetSchemeName());
if (sf == null)
{
throw new UnsupportedSchemeException(host.GetSchemeName() + " protocol is not supported"
);
}
IPAddress[] addresses = this.dnsResolver.Resolve(host.GetHostName());
int port = this.schemePortResolver.Resolve(host);
for (int i = 0; i < addresses.Length; i++)
{
IPAddress address = addresses[i];
bool last = i == addresses.Length - 1;
System.Net.Sockets.Socket sock = sf.CreateSocket(context);
sock.SetReuseAddress(socketConfig.IsSoReuseAddress());
conn.Bind(sock);
IPEndPoint remoteAddress = new IPEndPoint(address, port);
if (this.log.IsDebugEnabled())
{
this.log.Debug("Connecting to " + remoteAddress);
}
try
{
sock.ReceiveTimeout = socketConfig.GetSoTimeout();
sock = sf.ConnectSocket(connectTimeout, sock, host, remoteAddress, localAddress,
context);
sock.NoDelay = socketConfig.IsTcpNoDelay();
sock.SetKeepAlive(socketConfig.IsSoKeepAlive());
int linger = socketConfig.GetSoLinger();
if (linger >= 0)
{
sock.SetSoLinger(linger > 0, linger);
}
conn.Bind(sock);
return;
}
catch (SocketTimeoutException ex)
{
if (last)
{
throw new ConnectTimeoutException(ex, host, addresses);
}
}
catch (ConnectException ex)
{
if (last)
{
string msg = ex.Message;
if ("Connection timed out".Equals(msg))
{
throw new ConnectTimeoutException(ex, host, addresses);
}
else
{
throw new HttpHostConnectException(ex, host, addresses);
}
}
}
if (this.log.IsDebugEnabled())
{
this.log.Debug("Connect to " + remoteAddress + " timed out. " + "Connection will be retried using another IP address"
);
}
}
}