Keeping Track of Time for OpenGL - Engine Uptime and iTime

[aaronventure]

I'd like to be able to keep track of time the same way iTime in GLSL is - time in seconds since the compilation/plugin load.

Engine.getUptime() is not a solution here because it stops counting when the DAW engine is suspended (like when an audio device is disconnected or the app is in the background with no tracks armed and transport not playing).

So what's my next best option? Get system time on init and use that when interacting with the GLSL shader time-wise?

Is there a method to get time since app startup?

The source says it's Time::getMillisecondCounterHiRes(), but I see no such method in the API, i.e. it's just Engine.getUptime.