Golang classic mutex with loop implementation

golang_mutex.go

type MyMutex struct {
	state int32
}

const (
	unlocked = iota
	locked
)

func (m *MyMutex) Lock() {
	for {
		if atomic.CompareAndSwapInt32(&m.state, unlocked, locked) {
			return
		} else {
			continue
		}
	}
}

func (m *MyMutex) Unlock() {
	atomic.StoreInt32(&m.state, unlocked)
}