gistfile1.txt

extern mod extra;

struct Timer;
impl Timer {
  fn sleep(time: float){
    let start_time = extra::time::precise_time_s();
    let wait = time;
    while start_time > (extra::time::precise_time_s() - wait) {}

  }
}
fn main() {
 for int::range(0,4) |i| {
    do spawn {
      
      for 2.times {
        
        Timer::sleep(2f);
      }
    }
 }

}