Crashes on iOS caused by DNSServiceProcessResult

[foxik0169]

Describe the bug
When calling resolve on a lot services (10+) on iOS there is potential for a crash in DNSServiceProcessResult() function. This can happen because the underlying socket is not available anymore. To fix this, I've implemented asynchronous socket access with DispatchSourceRead. The code can be seen in my fork https://github.com/foxik0169/Bonsoir/tree/5.1.9-stream. There are more changes because I went ahead and make the DNSServiceProcessResult() call work concurently and then send the messages to Flutter on main thread.

To Reproduce
Part of the issue is that is not easily reproducible. For my network setup (hotspot on PC and 3 wifi devices connected) it did not happen at all. However when on a wifi that contains a lot of services (10+) with the type that I am trying to resolve, it might crash. All these devices are being resolved at the same time.

Expected behavior
No crashes in the native code.

Screenshots

Smartphone (please complete the following information):

• Device: iPhone 12
• OS: iOS 17.4.1

[Skyost]

Hey,

Great, this could even be related to #89. Feel free to open a PR once you're ready 🙂

[heiha100]

Describe the bug When calling resolve on a lot services (10+) on iOS there is potential for a crash in DNSServiceProcessResult() function. This can happen because the underlying socket is not available anymore. To fix this, I've implemented asynchronous socket access with DispatchSourceRead. The code can be seen in my fork https://github.com/foxik0169/Bonsoir/tree/5.1.9-stream. There are more changes because I went ahead and make the DNSServiceProcessResult() call work concurently and then send the messages to Flutter on main thread.

To Reproduce Part of the issue is that is not easily reproducible. For my network setup (hotspot on PC and 3 wifi devices connected) it did not happen at all. However when on a wifi that contains a lot of services (10+) with the type that I am trying to resolve, it might crash. All these devices are being resolved at the same time.

Expected behavior No crashes in the native code.

Screenshots

Smartphone (please complete the following information):

• Device: iPhone 12
• OS: iOS 17.4.1

hey, I am facing the same problem. And Thanks for your solution. Would you open a PR for this issue🩷