RingBuffer: 100% cpu usage

$uname -a Linux Lee-Ubuntu 4.4.0-28-generic #47-Ubuntu SMP Fri Jun 24 10:09:13 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux $cat /etc/issue Linux Lee-Ubuntu 4.4.0-28-generic #47-Ubuntu SMP Fri Jun 24 10:09:13 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux $go env Linux Lee-Ubuntu 4.4.0-28-generic #47-Ubuntu SMP Fri Jun 24 10:09:13 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Test code:

import (
    "fmt"
    "sync"
    "time"

"github.com/Workiva/go-datastructures/queue"

)

var wg sync.WaitGroup

func main() {
    wg.Add(2)
    q := queue.NewRingBuffer(4096)

go func() { defer wg.Done() for { time.Sleep(3 * time.Second) q.Offer("hello world") } }()

go func() { defer wg.Done() for { str, _ := q.Get() fmt.Println(str) } }()

wg.Wait()

}