From d9187f067776b763c97725ff2a6b078c130d634b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Magiera?= <magik6k@gmail.com>
Date: Tue, 26 Apr 2022 20:32:26 +0200
Subject: [PATCH] Storage: DatoCid call

---
 storage/storage.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/storage/storage.go b/storage/storage.go
index fb56a64..2954c86 100644
--- a/storage/storage.go
+++ b/storage/storage.go
@@ -17,10 +17,14 @@ type SectorRef struct {
 	ProofType abi.RegisteredSealProof
 }
 
+var NoSectorRef = SectorRef{}
+
 type Storage interface {
 	// Creates a new empty sector (only allocate on disk. Layers above
 	//  storage are responsible for assigning sector IDs)
 	NewSector(ctx context.Context, sector SectorRef) error
+	// Compute Data CID
+	DataCid(ctx context.Context, pieceSize abi.UnpaddedPieceSize, pieceData Data) (abi.PieceInfo, error)
 	// Add a piece to an existing *unsealed* sector
 	AddPiece(ctx context.Context, sector SectorRef, pieceSizes []abi.UnpaddedPieceSize, newPieceSize abi.UnpaddedPieceSize, pieceData Data) (abi.PieceInfo, error)
 }