Question

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High resolution timer with C++ and Linux?

double hires_time_in_seconds();

I’m looking for this function for Windows, Linux too if you have it.
It is mentioned in http://gafferongames.com/game-physics/fix-your-timestep/.
I’ve looked on the web.
I know it’s not a standard function but if anybody has an implementation that they want to share, that would be great.

Failing that, I need something as fine grained as possible to do synchronization in a client server game.

Answer 1

It’s not a real function, it’s just a self-descriptive placeholder name used in that blog post’s example code.

For Windows, you’ll want to use QueryPerformanceCounter along with QueryPerformanceFrequency. For Unix-based OSes, you’ll want to use gettimeofday(3).