Crate tokio_os_timer

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!

The current implementation uses timerfd_create(2) on Linux, and kqueue(2) timers on macOS and BSDs.

Structs

Delay	A future that completes a specified amount of time from its creation.
Interval	A stream that yields once every time a fixed amount of time elapses.