package q1226

import "sync"

var (
	pick  = sync.Mutex{}
	forks = [5]sync.Mutex{}
)

type DiningPhilosophers struct {
}

func (p *DiningPhilosophers) wantsToEat(
	philosopher int,
	pickLeftFork func(),
	pickRightFork func(),
	eat func(),
	putLeftFork func(),
	putRightFork func(),
) {
	l, r := &forks[philosopher], &forks[(philosopher+1)%5]

	pick.Lock()
	l.Lock()
	r.Lock()
	pick.Unlock()

	pickLeftFork()
	pickRightFork()
	eat()

	putLeftFork()
	l.Unlock()
	putRightFork()
	r.Unlock()
}

var _t = DiningPhilosophers{}
var _ = _t.wantsToEat