I make macOS application. For some reason (maybe c...

# kotlin-native

[aleksey.tomin]

I make macOS application.
For some reason (maybe coroutines bug) I’ve replace _`app.run()` (_app = NSApplication.sharedApplication) to

app.finishLaunching()
while (active.value) {
    app.nextEventMatchingMask(NSEventMaskAny, null, NSDefaultRunLoopMode, true)?.let {
        app.sendEvent(it)
    }
    runBlocking {
        delay(100.milliseconds)
    }
}

But now hotkeys (cmd+Q) and window’s button close don’t work.
How can I process this events manually in macOS code?
In main cycle? In Controller? In some NSWindow field?

[jasper]

What happens when you use the normal app.run() runloop?

[aleksey.tomin]

The ktor-client-curl works very slowly - 10 sec per request instead of 500ms

[jasper]

Can I see that code ktor-client code? Are you dispatching the request on a background queue/thread, then updating UI on main thread?

[jasper]

Wild guess based on current info: If the UI is updated on a background thread, it will happen very slowly.

[aleksey.tomin]

I use many Workers with own newSingleThreadContext and run app.run() in the main thread.

[jasper]

and if you update the UI with the results of one of these calls, that's on the main thread too?

[jasper]

You can get back on the main thread using:

DispatchQueue.main.async { 
  // your code here
}

^-- that's Swift, Kotlin equivalent must be similar (or same).

[jasper]

If yes to above, then it shouldn't be taking 10 seconds for those tasks.

[jasper]

If no to above, then it probably isn't taking 10 seconds, but the update of the UI is.

[aleksey.tomin]

I haven’t problem with UI.
I have problem with another thread and ktor-client request in it.
This thread do something and write the result into AtomicReference. Later - delay and perform next request.
If I use app.run - request works 10 seconds. If don’t use - 0.3..0.5 seconds.

[jasper]

OK, hopefully someone can help with that.

[aleksey.tomin]

https://youtrack.jetbrains.com/issue/KT-43589