Method Fetch

runtime/vcache/cache.go:50–73

(ctx context.Context, uri *storage.URI, id ksuid.KSUID)

}

func (c *Cache) Fetch(ctx context.Context, uri *storage.URI, id ksuid.KSUID) (*Object, error) {
	c.mu.Lock()
	object, ok := c.objects[id]
	c.mu.Unlock()
	if ok {
		return object, nil
	}
	c.lock(id)
	defer c.unlock(id)
	c.mu.Lock()
	object, ok = c.objects[id]
	c.mu.Unlock()
	if ok {
		return object, nil
	}
	object, err := NewObject(ctx, c.engine, uri)
	if err != nil {
		return nil, err
	}
	c.mu.Lock()
	c.objects[id] = object
	c.mu.Unlock()
	return object, nil
}