Jiggle thread implementation in Swift

JiggleThread.swift

// Based on an idea from page 188 in:
//
// Robert C. Martin (2009): 
//  "Clean Code. A Handbook of Agile Software Craftsmanship",
//  Upper Saddle River: Prentice Hall.

import Foundation

@inline(__always)
func jiggleThread(minimumDelay: TimeInterval = 0.3, maximumDelay: TimeInterval = 4) {
    #if DEBUG
        if isRunningTests { return }

        let randomRange: TimeInterval = (maximumDelay - minimumDelay) * TimeInterval(10)
        let randomInterval: TimeInterval = TimeInterval(arc4random_uniform(UInt32(randomRange)))
        let seconds: TimeInterval = minimumDelay + (randomInterval * 0.1)
        log.verbose("Thread \"\(Thread.current.description)\" sleeps for \(seconds)s")
        Thread.sleep(forTimeInterval: seconds)
    #endif
}