public async Task Open(Server server, CancellationToken cancellationToken)
{
var process = Process.GetProcessById(server.ProcessId);
var whenProcessExits = Observable.FromEventPattern(h => process.Exited += h, h => process.Exited -= h);
process.EnableRaisingEvents = true;
if (process.HasExited)
{
ThrowProcessExitedError();
}
var connectionModel = new ConnectionModel(server);
mActiveConnection.Disposable = connectionModel.Connect();
bool connected = await connectionModel.WhenConnected.Where(isConnected => isConnected)
.Merge(whenProcessExits.Select(_ => false))
.Take(1)
.ToTask(cancellationToken);
if (!connected)
{
ThrowProcessExitedError();
}
mConnectionSubject.OnNext(connectionModel);
void ThrowProcessExitedError()
{
throw new ConnectionException($"Process exited before communication was established.");
}
}