Function revCacheLoader

db/revision_cache_interface.go:414–420

This is the RevisionCacheLoaderFunc callback for the context's RevisionCache. Its job is to load a revision from the bucket when there's a cache miss.

(ctx context.Context, backingStore RevisionCacheBackingStore, id IDAndRev)

// This is the RevisionCacheLoaderFunc callback for the context's RevisionCache.
// Its job is to load a revision from the bucket when there's a cache miss.
func revCacheLoader(ctx context.Context, backingStore RevisionCacheBackingStore, id IDAndRev) (bodyBytes []byte, history Revisions, channels base.Set, removed bool, attachments AttachmentsMeta, deleted bool, expiry *time.Time, hlv *HybridLogicalVector, err error) {
	var doc *Document
	if doc, err = backingStore.GetDocument(ctx, id.DocID, DocUnmarshalSync); doc == nil {
		return bodyBytes, history, channels, removed, attachments, deleted, expiry, hlv, err
	}
	return revCacheLoaderForDocument(ctx, backingStore, doc, id.RevID)
}

// revCacheLoaderForCv will load a document from the bucket using the CV, compare the fetched doc and the CV specified in the function,
// and will still return revid for purpose of populating the Rev ID lookup map on the cache