void ObserveClosed() =>
Observe <ClientClosedEventArgs>(
e => Connection.Closed += e,
e => Connection.Closed -= e,
args =>
{
Log.Info("EventStore connection closed ({Reason})", args.Reason);
_connectInitially?.SetException(new Exception("EventStore connection closed while connecting initially"));
});
void StopHost(Task runTask)
{
if (runTask.IsFaulted)
{
_startup.SetException(runTask.Exception);
}
_shutdown.TrySetResult();
}
// (Try)SetFromTask
public static void SetFromTask <T>(this TaskSource <T> target, Task <T> source, CancellationToken candidateToken)
{
if (source.IsCanceled)
{
target.SetCanceled(candidateToken.IsCancellationRequested ? candidateToken : CancellationToken.None);
}
else if (source.Exception != null)
{
target.SetException(source.Exception);
}
else
{
target.SetResult(source.Result);
}
}
// (Try)SetFromResult
public static void SetFromResult <T>(this TaskSource <T> target, Result <T> source, CancellationToken candidateToken)
{
if (source.IsValue(out var v, out var e))
{
target.SetResult(v);
}
else if (e is OperationCanceledException && candidateToken.IsCancellationRequested)
{
target.SetCanceled(candidateToken);
}
else
{
target.SetException(e);
}
}
protected void CompleteTask(Exception error) => _lifetime.SetException(error);
protected void CompleteTask(Exception error) => _taskSource.SetException(error);
