goroutine list dir

package main

import (
	"fmt"
	"io/ioutil"
	"os"
	"sync"
	_ "sync/atomic"
	_ "time"
)

type Node struct {
	Name     string
	Id       int32
	Parent   *Node
	Children []*Node
	info     os.FileInfo

	nodeChannel chan *Node

	wg sync.WaitGroup
}

func visitDir(self *Node, depth int) {

	files, err := ioutil.ReadDir(self.Name)

	if err != nil {
		fmt.Println("error reading dir at: ", self.Name, " -- ", depth)
		panic(err)
	}

	go func() {
		self.wg.Wait()
		close(self.nodeChannel)
	}()

	self.wg.Add(1)

	for _, f := range files {

		n := &Node{}

		n.info = f
		n.Parent = self
		n.Name = self.Name + "/" + f.Name()

		n.nodeChannel = make(chan *Node)

		self.nodeChannel <- n

		if f.IsDir() {
			fmt.Println("*****> ", n.Name)
			go visitDir(n, depth+1)
		}

	}

	self.wg.Done()

}

func main() {

	fmt.Println("starting...")

	parent := &Node{}
	parent.nodeChannel = make(chan *Node)
	parent.Name = "/Users/henrique/Desktop/A"

	visitDir(parent, 0)

	/// Debug
	fmt.Print("\n\n\n\n ------ FILES ------\n\n\n\n")

	var len int
	VisitFileInfo(parent, func(n *Node) {

		fmt.Println(len, " ", n.Name)
		len++
	})

	fmt.Println(len)

}

//VisitFileInfo recursivly visits a file info and it's children
func VisitFileInfo(info *Node, visitor func(*Node)) {

	visitor(info)
	for _, f := range info.Children {
		VisitFileInfo(f, visitor)
	}
}