public void ThingChanged(ListBoxThing thing)
{
if (Items.Contains(thing))
{
var pos = Items.IndexOf(thing);
Items.Remove(thing);
Items.Insert(pos, thing);
}
else
{
Items.Add(thing);
}
}
public async Task Go()
{
bool shouldSync = false;
var block1 = new TransformBlock <string, ListBoxThing>(input =>
{
Console.WriteLine($"1: {input}");
var newItem = new ListBoxThing()
{
Path = input
};
return(newItem);
}, new ExecutionDataflowBlockOptions()
{
MaxDegreeOfParallelism = 4,
BoundedCapacity = 10,
EnsureOrdered = false
});
var block2 = new TransformBlock <ListBoxThing, ListBoxThing>(input =>
{
Console.WriteLine($"2: {input}\t\t\tStarting {input} now (ui logging)");
_logger.ThingChanged(input);
return(input);
}, ExecutionDataflowBlockOptionsCreator.SynchronizeForUiThread(shouldSync, new ExecutionDataflowBlockOptions()
{
MaxDegreeOfParallelism = 1,
BoundedCapacity = 1,
EnsureOrdered = false
}));
var block3 = new TransformBlock <ListBoxThing, ListBoxThing>(async input =>
{
Console.WriteLine($"3 start: {input}");
await Task.Delay(5000);
Console.WriteLine($"3 end: {input}");
return(input);
}, new ExecutionDataflowBlockOptions()
{
MaxDegreeOfParallelism = 2,
BoundedCapacity = 2,
EnsureOrdered = false
});
var block4 = new ActionBlock <ListBoxThing>(input =>
{
Console.WriteLine($"4: {input}");
input.Color = Brushes.LightGreen;
_logger.ThingChanged(input);
}, ExecutionDataflowBlockOptionsCreator.SynchronizeForUiThread(shouldSync, new ExecutionDataflowBlockOptions()
{
MaxDegreeOfParallelism = 1,
BoundedCapacity = 1,
EnsureOrdered = false
}));
block1.LinkTo(block2, new DataflowLinkOptions()
{
PropagateCompletion = true
});
block2.LinkTo(block3, new DataflowLinkOptions()
{
PropagateCompletion = true
});
block3.LinkTo(block4, new DataflowLinkOptions()
{
PropagateCompletion = true
});
var files = RecurseFiles();
await Task.Run(async() =>
{
foreach (var file in files)
{
Console.WriteLine($"Posting: {file}");
var result = await block1.SendAsync(file);
if (!result)
{
Console.WriteLine("Result is false!!!");
}
}
});
Console.WriteLine("Completing");
block1.Complete();
await block4.Completion;
Console.WriteLine("Done");
}
