public void EnqueuingBeforeDequeuing()
{
var q = new SingleActionQueue();
var didAction = false;
q.Enqueue(() => didAction = true);
q.Dequeue()();
Assert.That(didAction, Is.True);
}
public void OnlyDequeuesActionOnce()
{
var q = new SingleActionQueue();
int dequeues = 0;
Task.Run(() => q.Dequeue()());
Task.Run(() => q.Dequeue()());
q.Enqueue(() => Interlocked.Increment(ref dequeues));
Thread.Sleep(1000); //Again, sorry :(
Assert.That(dequeues, Is.EqualTo(1));
}
public void EnqueuingReplacesActionInQueue()
{
var q = new SingleActionQueue();
var value = 0;
q.Enqueue(() => { value = 1; });
q.Enqueue(() => { value = 2; });
q.Enqueue(() => { value = 3; });
q.Dequeue()();
Assert.That(value, Is.EqualTo(3));
}
public void DequeuingBeforeEnqueuing()
{
var q = new SingleActionQueue();
var didAction = false;
var dequeue = Task.Run(
() =>
{
q.Dequeue()();
});
Thread.Sleep(1000); //Sorry :( Need to give task time to start and block, to avoid false positives
q.Enqueue(() => didAction = true);
dequeue.Wait();
Assert.That(didAction, Is.True);
}
public IDisposable Watch(IProject project)
{
var queue = new SingleActionQueue();
var subscription = project.FilePath
.Select(SketchImportUtils.SketchListFilePath)
.WhenChangedOrStarted(_fileSystem)
.Where(path => File.Exists(path.NativePath))
.Select(SketchFilePaths)
.CombineLatest(project.RootDirectory, SketchImportUtils.MakeAbsolute)
.WhenAnyChangedOrStarted(_fileSystem)
.CombineLatest(project.RootDirectory) // todo redundant as we already combined with the root directory to make paths absolute
.Subscribe(
x => queue.Enqueue(() => Convert(x.Item1, x.Item2 / SketchImportUtils.OutputDirName)),
e => { _logger.Error("Sketch importer error: " + e.Message); });
var tokenSource = new CancellationTokenSource();
new Thread(
() =>
{
while (!tokenSource.Token.IsCancellationRequested)
{
queue.Dequeue()();
}
_logger.Info("Stopping thread");
})
{
Name = "Sketch conversion", IsBackground = true
}.Start();
Action stopThread = () =>
{
queue.Enqueue(() => { tokenSource.Cancel(); });
};
// TODO: This is very messy, should extract dialog to its own class
CreateDialog(project);
return(Disposable.Combine(
subscription,
Disposable.Create(stopThread)));
}