Token.invalid with errno set.EventLoop.registerTimer
Register a one-shot timer watcher.
Timers use the TimerWheel for O(1) scheduling. Timer precision depends on the event loop's poll interval. Timers fire during the timer dispatch phase of each loop iteration, so actual resolution is bounded by the duration of I/O processing in the same iteration. Unlike Linux timerfd, there is no kernel-level timer delivery — the loop advances the wheel based on QueryPerformanceCounter monotonic time.
Parameters
delayMs | Delay before the timer fires, in milliseconds. |
callback | Callback invoked when the timer expires. |
Returns
New watcher token on success, or