public async Task SubscribeToMessages(IAnonymousMessageObserver observer, MessageHandle since)
{
observers.Subscribe(observer);
if (since != default)
{
foreach (var(message, handle) in await rewoundMessagesGrain.GetMessagesSinceAsync(since))
{
observer.ReceiveMessage(message, handle);
}
}
}
public Task UnsubscribeFromMessages(IAnonymousMessageObserver observer)
{
observers.Unsubscribe(observer);
return(Task.CompletedTask);
}
