/// <summary>
/// Deletes expired messages from the database.
/// </summary>
public static void DeleteExpiredMessages()
{
long currentTimeMillis = Util.CurrentTimeMillis();
List <SignalMessage> expiredMessages = SignalDBContext.GetExpiredMessages(currentTimeMillis);
foreach (var expiredMessage in expiredMessages)
{
DeleteFromDb(expiredMessage);
}
}