X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/6e10831be039fb540fc252d35e0ffe673ea8d398..4e26efd8ee2d1896e329dc32488346341557a15b:/services/keepstore/volume.go

diff --git a/services/keepstore/volume.go b/services/keepstore/volume.go
index f581b28fbf..64fea34bfe 100644
--- a/services/keepstore/volume.go
+++ b/services/keepstore/volume.go
@@ -5,16 +5,20 @@
 package main
 
 import (
+	"io"
 	"sync/atomic"
 	"time"
 )
 
 type Volume interface {
+	// Get a block. IFF the returned error is nil, the caller must
+	// put the returned slice back into the buffer pool when it's
+	// finished with it.
 	Get(loc string) ([]byte, error)
 	Put(loc string, block []byte) error
 	Touch(loc string) error
 	Mtime(loc string) (time.Time, error)
-	Index(prefix string) string
+	IndexTo(prefix string, writer io.Writer) error
 	Delete(loc string) error
 	Status() *VolumeStatus
 	String() string