src/timer.rs

   1 use std::time::Duration;
   2
   3 use windows::Win32::{Foundation::HANDLE, System::Threading::*};
   4
   5 pub struct Sleep {
   6     timer_handle: HANDLE,
   7 }
   8
   9 impl Sleep {
  10     pub fn new() -> Self {
  11         unsafe {
  12             Sleep {
  13                 timer_handle: CreateWaitableTimerExW(
  14                     None,
  15                     windows::core::PCWSTR::null(),
  16                     CREATE_WAITABLE_TIMER_MANUAL_RESET | CREATE_WAITABLE_TIMER_HIGH_RESOLUTION,
  17                     TIMER_ALL_ACCESS.0,
  18                 )
  19                 .unwrap(),
  20             }
  21         }
  22     }
  23
  24     pub fn wait(&self, d: Duration) {
  25         let time = d.as_micros() as i64 * -10;
  26         unsafe {
  27             SetWaitableTimer(self.timer_handle, &time, 0, None, None, false).unwrap();
  28             WaitForSingleObject(self.timer_handle, INFINITE);
  29         }
  30     }
  31 }