public Task ShutdownAsync()
{
if (_timer != null)
{
// .NET-specific
ExecutorService.Cancel(_timer);
}
var tcsShutdown = new TaskCompletionSource <object>();
lock (_lock)
{
_shutdown = true;
int max = _runningTasks.Count;
if (max == 0)
{
tcsShutdown.SetResult(null);
return(tcsShutdown.Task);
}
var counter = new VolatileInteger(0);
foreach (var task in _runningTasks.Keys)
{
task.ContinueWith(t =>
{
if (counter.IncrementAndGet() == max)
{
tcsShutdown.SetResult(null); // complete
}
});
}
}
return(tcsShutdown.Task);
}
private void Destroy()
{
_state = 2;
// .NET-specific:
if (_timer != null)
{
ExecutorService.Cancel(_timer);
_timer = null;
}
if (_executor != null)
{
_executor.Shutdown();
}
}