A GoRoutine safe queue for Golang 
It is similar to the Queue of Python.
Installation
go get github.com/damnever/goqueue
Example
Just for example, I use Queue.Get(0) and Queue.PutNoWait(value) more and often, but channel is not a right way do that...
package main
import (
"fmt"
"sync"
"github.com/Damnever/goqueue"
)
func main() {
queue := goqueue.New(0)
wg := &sync.WaitGroup{}
worker := func(queue *goqueue.Queue) {
defer wg.Done()
for !queue.IsEmpty() {
val, err := queue.Get(0)
if err != nil {
fmt.Println("Unexpect Error: %v\n", err)
}
num := val.(int)
fmt.Printf("-> %v\n", num)
if num%3 == 0 {
for i := num + 1; i < num+3; i++ {
queue.PutNoWait(i)
}
}
}
}
go func() {
defer wg.Done()
for i := 0; i <= 27; i += 3 {
queue.PutNoWait(i)
}
}()
for i := 0; i < 5; i++ {
go worker(queue)
}
wg.Add(6)
wg.Wait()
fmt.Println("All task done!!!")
}