It can cause problems to flip off the internet when you already have open connections, though there are also API to detect changes in network availability. But I don't see that as a significant problem for "I turn off my WiFi now to do performance-sensitive work". First turn off WiFi, then launch the app you need, in that order. Problem solved.
alt Hacker News
It can cause problems to flip off the internet when you already have open connections, though there are also API to detect changes in network availability. But I don't see that as a significant problem for "I turn off my WiFi now to do performance-sensitive work". First turn off WiFi, then launch the app you need, in that order. Problem solved.