Method Enqueue

queue.go:58–83

Enqueue adds an item to the queue.

(value []byte)

// Enqueue adds an item to the queue.
func (q *Queue) Enqueue(value []byte) (*Item, error) {
	q.Lock()
	defer q.Unlock()

	// Check if queue is closed.
	if !q.isOpen {
		return nil, ErrDBClosed
	}

	// Create new Item.
	item := &Item{
		ID:    q.tail + 1,
		Key:   idToKey(q.tail + 1),
		Value: value,
	}

	// Add it to the queue.
	if err := q.db.Put(item.Key, item.Value, nil); err != nil {
		return nil, err
	}

	// Increment tail position.
	q.tail++

	return item, nil
}

// EnqueueString is a helper function for Enqueue that accepts a
// value as a string rather than a byte slice.