Method GetOrAdd

private/pkg/cache/cache.go:34–49

GetOrAdd gets the value for the key, or calls getUncached to get a new value, and then caches the value. If getUncached calls another Cache, the order of GetOrAdd calls between caches must be preserved for lock ordering.

(key K, getUncached func() (V, error))

// If getUncached calls another Cache, the order of GetOrAdd calls between caches
// must be preserved for lock ordering.
func (c *Cache[K, V]) GetOrAdd(key K, getUncached func() (V, error)) (V, error) {
	c.lock.RLock()
	var result *result[V]
	var ok bool
	if c.store != nil {
		result, ok = c.store[key]
	}
	c.lock.RUnlock()
	if ok {
		return result.value, result.err
	}
	c.lock.Lock()
	value, err := c.getOrAddInsideWriteLock(key, getUncached)
	c.lock.Unlock()
	return value, err
}

func (c *Cache[K, V]) getOrAddInsideWriteLock(key K, getUncached func() (V, error)) (V, error) {
	if c.store == nil {