Method ReaderAt

pkg/containerdutil/content.go:45–67

(ctx context.Context, desc ocispec.Descriptor)

}

func (provider *providerWithCache) ReaderAt(ctx context.Context, desc ocispec.Descriptor) (content.ReaderAt, error) {
	key := desc.Digest.String()
	// If we had en entry already, get the size over
	value, ok := provider.cache[key]
	if !ok {
		newReaderAt, err := provider.native.ReaderAt(ctx, desc)
		if err != nil {
			return nil, err
		}
		// Build the final object
		value = &readerAtWithCache{
			newReaderAt,
			-1,
			func() {
				delete(provider.cache, key)
			},
		}
		// Cache it
		provider.cache[key] = value
	}

	return value, nil
}

// ReaderAtWithCache implements the content.ReaderAt interface
type readerAtWithCache struct {