Throttle
A simple, configurable throttle for slowing down code. When do you actually want to slow down code? To avoid resource contention and browning out downstream services.
// simple throttle configured for 10 TPS
let mut throttle = new_tps_throttle;
let iteration_start = now;
// the first one is free!
throttle.acquire;
// the first iteration is free, subsequent iterations
// will be slowed down to a rate of 10 TPS, or one iteration
// every 100 milliseconds
for _i in 0..10
println!;
assert_eq!;
Throttle is based on a functional interface, so it can go beyond constant tps rate limiting to facilitating variable-rate throttling based on conditions entirely up to your program.
let mut throttle = new_variable_throttle;
let iteration_start = now;
// the first iteration is free, subsequent iterations
// will be slowed down
for i in 0..5
assert_eq!;
License
I want you to be able to use this software regardless of who you may be, what you are working on, or the environment in which you are working on it - I hope you'll use it for good and not evil! To this end, Throttle is licensed under the 2-clause BSD license, with other licenses available by request. Happy coding!