While debugging NEPacketTunnelProvider I found that it's startTunnel and stopTunnel are being run not on the first thread.
The question is can I use DispatchQueue.main in Network Extensions? Are there any things to watch out for when dealing with async code inside Network Extensions?
The question is can I use DispatchQueue.main in Network Extensions?
Why are you wanting to control the queue in which this work is being run on?
Matt Eaton
DTS Engineering, CoreOS
meaton3@apple.com
I'd like to make so API calls in the background and then get back to original thread, for example.
What if you used a provider specific work queue and sent your work there, then everything else was run on the thread that ran the provider specific functions? Something like:
let queue = DispatchQueue(label: "NEPacketTunnelProvider", autoreleaseFrequency: .workItem)
...
self.queue.async {
// Do some work
}
Matt Eaton
DTS Engineering, CoreOS
meaton3@apple.com
I'll try that, but I thought maybe there is any documentation regarding multithreading inside app and system extensions that I couldn't find?