func()

in groupcache.go [620:643]

• 18 lines of code
• 5 McCabe index (conditional complexity)

func (g *Group) populateCache(key string, payload payload, cache *cache) {
	if g.cacheBytes <= 0 {
		return
	}
	cache.add(key, payload)

	// Evict items from cache(s) if necessary.
	for {
		mainBytes := g.mainCache.bytes()
		hotBytes := g.hotCache.bytes()
		if mainBytes+hotBytes <= g.cacheBytes {
			return
		}

		// TODO(bradfitz): this is good-enough-for-now logic.
		// It should be something based on measurements and/or
		// respecting the costs of different resources.
		victim := &g.mainCache
		if hotBytes > mainBytes/8 {
			victim = &g.hotCache
		}
		victim.removeOldest()
	}
}