检测网络连接可用性更改

Question

I am writing a Go application for Mac and Windows, which will perform some action whenever there is a network change( Client move from Wi-fi 1 to Wi-fi 2 or to 3G to LAN). I am aware of a solution for Application running on mac in swift language but I am looking for a platform-agnostic solution here.

So far I have tried checking for an event on an interface but I am not sure if that is sufficient.

I expect that on a network change (moving from Wifi-1 to Wifi-2 or 3G or LAN) my Go app should be able to know to take some action.

Answer 1

I doubt there would be such a solution.

Every project which tries to provide some platform-agnostic solution to an inherently OS-tied problem inevitably hides the platform-specific details behind a common API. Look at https://github.com/fsnotify/fsnotify for a good example.

So, I'd take that route and would have put up a package which would have two platform-specific "backends" which would be compiled conditionally using build tags.

To get notified about network-related events under Windows, you should probably start here. Unfortunately, this stuff is COM-oriented, but you could use https://github.com/go-ole/go-ole to help with that.

You might also ask a non-Go-specific question tagged winapi to ask about what would be the best way to hook into the kernel to get notified about the availability of the networks.