[Boost-users] [thread] how to use thread::timed_join

I want to do a timed join, with a relative time of 0.1s. I can not figure out from the docs how to do this. I find the prototypes somewhat mystifying: bool timed_join(const system_time& wait_until); template<typename TimeDuration> bool timed_join(TimeDuration const& rel_time); What is system_time? What should TimeDuration be? I'm using Windows. Thank you, Johan Råde