Merge pull request ipfs/go-ipfs-blockstore#56 from ipfs/feat/optimize…

…-get Optimize id store This commit was moved from ipfs/go-ipfs-blockstore@9283acf
ipfs · Jul 24, 2020 · 911964f · 911964f
2 parents 59a94b0 + f240acc
commit 911964f
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/blockstore/idstore.go b/blockstore/idstore.go
@@ -18,6 +18,11 @@ func NewIdStore(bs Blockstore) Blockstore {
 }
 
 func extractContents(k cid.Cid) (bool, []byte) {
+	// Pre-check by calling Prefix(), this much faster than extracting the hash.
+	if k.Prefix().MhType != mh.IDENTITY {
+		return false, nil
+	}
+
 	dmh, err := mh.Decode(k.Hash())
 	if err != nil || dmh.Code != mh.ID {
 		return false, nil