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Proper way to call back into JavaScriptCore from native
In our tvOS app we have a couple of hooks into the native side where we receive events over a WebSocket in (using CocoaAsyncSocket) native and propagate those events into the JavaScript layer. The calls into the JS layer are structured like this:self.receiveQueue.addOperation { websocket.invokeMethod("onmessage", withArguments: [["data": text]]) }Where `receiveQueue` is an `OperationQueue`. This works great most of the time, but we occasionally see application crashes where it seems a memory reference has gone bad. However, we've found that if we take the JavaScript function being called and wrap it in asetTimeout(() => { // Do the work here }, 0)this resolves nearly all the issues. We still get an application crash here and there but the `setTimeout` does the trick most of the time.This leads me to the following question. What's the proper way to call back to a TVJS application from native? Should I be using DispatchQueue.main.async { } instead of an OperationQueue? How does this relate to doing work on the main UI thread?Thanks!
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Dec ’21