This crate provides timers for use with tokio that rely on OS mechanisms for timer management rather than a separate timing mechanism like [tokio-timer]. This comes at somewhat increased overhead if you have many timers, but allows the timers to have any granularity supported by your operating system where tokio-timer can only support timers with a granularity of 1ms. In particular, the system timers usually support whatever granularity the underlying hardware supports (see "High-resolution timers" in [time(7)]), which on my laptop is 1ns!

Platform support

The current implementation uses [timerfd_create(2)] on Linux, and [kqueue(2) timers] on macOS and BSDs. Windows support is sadly unlikely to appear (#9).