This module exposes functionality to create receivers that receive notifications after a specified period of time or at a specified frequency.
At its simplest, oneshot_ms can be used to put the thread to sleep. Unlike with std::thread::sleep, this could be used with Select to be waiting for one of several Receivers to fire.
```rust use timer::oneshot_ms;
let timer = oneshot_ms(1500); timer.recv().unwrap(); println!("1.5 seconds have elapsed."); ```
Periodic Receivers can be created using periodic_ms.
```rust use timer::periodic_ms;
let tick = periodicms(2000); thread::sleepms(1000); let tock = periodic_ms(2000); loop { tick.recv().unwrap(); println!("Tick"); tock.recv().unwrap(); println!("Tock"); } ```