protected Task <string> Call(StationDesc func, string message)
{
var finished = _station.Grab(func).When(MsgType.Signal);
_station.Send(MsgType.Link, message).To(func);
return(finished);
}
public override void Start(string message, StationDesc src)
{
pinger = src;
var grabPinger = Station.Grab(pinger);
grabPinger.Signaled += handlePing;
grabPinger.Blocked += handleBlock;
}
private void _accept(string message, StationDesc src)
{
if (--_count < 1)
{
_station.Linked -= _accept;
_station.Linked += _block;
}
Accepted(_station, message, src);
}
private async void handlePong(string msg, StationDesc src)
{
station.Log($"{msg} from {src.Name}");
if (--cnt == 0)
{
await station.Send(MsgType.Block, "").To(ponger);
station.Close();
return;
}
ping();
}
protected sealed override async void Accepted(IStation station, string message, StationDesc src)
{
_station = station;
station.Signaled += (string msg, StationDesc _) =>
{
_tcs.TrySetResult(msg);
};
Next = src;
var rst = await Invoked(message);
await station.Send(MsgType.Signal, rst).To(Next);
station.Close();
}
public Task Prepare(StationDesc destination, string message = "") => _station.Send(MsgType.Link, message).To(destination);
public Runner(StationDesc next) : base(1)
{
Next = next;
_tcs = new TaskCompletionSource <string>();
}
private void handleBlock(string msg, StationDesc src)
{
Station.Close();
}
private void handlePing(string msg, StationDesc src)
{
Station.Log($"{msg} from {src.Name}");
pong();
}
protected sealed override async void Accepted(IStation station, string message, StationDesc src)
{
_station = station;
string rst = await Invoked(message);
await station.Send(MsgType.Signal, rst).To(src);
station.Close();
}
private void _block(string message, StationDesc src)
{
_station.Send(MsgType.Block).To(src);
}
protected abstract void Accepted(IStation station, string message, StationDesc src);