public Task CheckMailBox()
{
if (MailBox.Count == 0)
{
return(Task.CompletedTask);
}
IMessage data;
if (!MailBox.TryDequeue(out data))
{
return(Task.CompletedTask);
}
if (data is IncreaseCount)
{
IncreaseCounter(data as IncreaseCount);
}
return(Task.CompletedTask);
}