Dining philosophers with mutexes in go

dining_philosophers.go

package main

import (
	"fmt"
	"sync"
	"time"
)

type Philosopher struct {
	Name string
}

func (p *Philosopher) Think() {
	time.Sleep(100 * time.Millisecond)
}

func (p *Philosopher) Eat(left, right *sync.Mutex) {
	for {
		left.Lock()
		right.Lock()
		fmt.Println(p.Name, "is eating!")
		time.Sleep(time.Second)
		left.Unlock()
		right.Unlock()
		p.Think()
	}
}

func eat(p Philosopher, left, right *sync.Mutex) {
	go p.Eat(left, right)
}

func main() {
	p := []Philosopher{
		Philosopher{"A"},
		Philosopher{"B"},
		Philosopher{"C"},
		Philosopher{"D"},
		Philosopher{"E"},
	}

	forks := []*sync.Mutex{}
	for range p {
		forks = append(forks, &sync.Mutex{})
	}

	for i, pp := range p {
		eat(pp, forks[i], forks[(i+1)%len(forks)])
	}

	time.Sleep(10 * time.Second)
}