public IPv4V6DualStackSpeculativeConnector(TcpConnectParam basicParam, TcpIpSystem system) : base(basicParam)
{
if (basicParam.DestHostname._IsEmpty())
{
// IP address is specified
AddAttempt(new Attempt(system, basicParam, 0));
return;
}
// Hostname is specified
var hostInfo = system.GetHostInfo(true);
if (hostInfo.IsIPv4Supported)
{
AddAttempt(new Attempt(system, new TcpConnectParam(basicParam.DestHostname, basicParam.DestPort, AddressFamily.InterNetwork,
connectTimeout: basicParam.ConnectTimeout, dnsTimeout: basicParam.DnsTimeout), 0));
}
if (hostInfo.IsIPv6Supported)
{
AddAttempt(new Attempt(system, new TcpConnectParam(basicParam.DestHostname, basicParam.DestPort, AddressFamily.InterNetworkV6,
connectTimeout: basicParam.ConnectTimeout, dnsTimeout: basicParam.DnsTimeout), 0));
}
}
public Attempt(ITcpConnectableSystem system, TcpConnectParam param, int postWaitMsecs)
{
this.System = system;
this.Param = param;
this.PostWaitMsecs = postWaitMsecs;
}
public ConnSock ConnectIPv4v6Dual(TcpConnectParam param, CancellationToken cancel = default) => ConnectIPv4v6DualAsync(param, cancel)._GetResult();
public async Task <ConnSock> ConnectIPv4v6DualAsync(TcpConnectParam param, CancellationToken cancel = default)
{
IPv4V6DualStackSpeculativeConnector connector = new IPv4V6DualStackSpeculativeConnector(param, this);
return(await connector.ConnectAsync(cancel));
}
public SpeculativeConnectorBase(TcpConnectParam basicParam)
{
this.BasicParam = basicParam;
}
protected override NetTcpProtocolStubBase CreateTcpProtocolStubImpl(TcpConnectParam param, CancellationToken cancel)
{
NetPalTcpProtocolStub tcp = new NetPalTcpProtocolStub(cancel: cancel);
return(tcp);
}
protected abstract NetTcpProtocolStubBase CreateTcpProtocolStubImpl(TcpConnectParam param, CancellationToken cancel);
