Threading in Sugar

Elements Elements RTL
1

From your documentation http://docs.elementscompiler.com/API/Sugar/Sugar.Threading/ it is not clear for me - what exactly Sugar support in threading.

Does it support, let’s say thread spawning, wait for thread, etc…
Or is it not work yet?

2

Have you checked out the source code ?

In 8.3 there is Task which supports wait for

So you will able to use it across 3 platforms.

3

From what I know .Net await/async happens in the same thread.

From that code, it is still not clear to me, how to work with threads.

4

I’m not sure what you mean. What are you trying to do ?

5

FWIW, proper cross-platform await support is coming in 8.3.

6

@mh In the Fire Beta 8.3.90.1922 the __await is missing or I need a specific library to add it as language extension? Thank you.

7

Define “missing”? __await should be supported on all platforms in the latest betas — but of course you need APIs that work with it, which standard (block-based) Cocoa APIs are not. We’ll start adding await-compatible APIs to Sugar, and you can of course craft your own.

8

Yes so basically I did not find the await compatible api in Sugar, that is what I mean.
But if this is supported (by the language), let’s say in Android, which are the API (since there are not in Cocoa already)? Thanks.

9

Here’s an example that shows __await working on Cocoa:

import AppKit

@IBObject public class MainWindowController : NSWindowController {

	init() {
		super.init(windowNibName: "MainWindowController")
	}

	public override func windowDidLoad() {
		super.windowDidLoad()
		updateTitle(__await GetTitleSlow())
	}
	
	func updateTitle(title: String) {
		window?.title = title
	}

	func GetTitleSlow() -> Task1<String> {
		return Task1<String>.Run() {
			usleep(1_000_000)
			dispatch_async(dispatch_get_main_queue()) {
			   self.window!.title = "not yet"
			}
			usleep(1_000_000)
			dispatch_async(dispatch_get_main_queue()) {
				self.window!.title = "still not yet"
			}
			usleep(1_000_000)
			return "That took a while!"
		}
	}

}