async Task SetupTimerAsync(Rule rule)
{
var timer = new Timer();
this.timerLock.EnterWriteLock();
try
{
Dictionary <Guid, Timer> timers;
if (!this.timers.TryGetValue(rule.TransactionHash, out timers))
{
timers = new Dictionary <Guid, Timer>();
this.timers.Add(rule.TransactionHash, timers);
}
timers.Add(rule.Id, timer);
try
{
var remainingWaitingTime = await this.ruleRepository.GetRemainingWaitingTimeAsync(rule.Id, CancellationToken.None);
timer.Elapsed += OnTimeout;
timer.Start(remainingWaitingTime < TimeSpan.Zero ? TimeSpan.Zero : remainingWaitingTime, null, rule);
}
catch
{
timers.Remove(rule.Id);
throw;
}
}
finally
{
this.timerLock.ExitWriteLock();
}
}
void StartTimer(Rule rule, TimeSpan timeout)
{
if (this.semaphore.CurrentCount > 0)
{
throw new InvalidOperationException("The semaphore must be held before a timer can start.");
}
var timer = new Timer(this.timerScheduler);
var address = rule.AddressReservation.Address.Address;
this.watchings.Add(address, new Watching(rule, timer));
try
{
timer.Elapsed += (sender, e) =>
{
e.RegisterBackgroundTask(
cancellationToken => OnTimeoutAsync((BitcoinAddress)e.Context, cancellationToken));
};
timer.Start(timeout, null, address);
}
catch
{
this.watchings.Remove(address);
throw;
}
}