From d202a456f56ec9923626ef6839254d40f2c8ee37 Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Sun, 28 May 2017 18:33:05 +0200
Subject: pathiv: move derivedIVContainer into the package

...under the new name "FileIVs".

This will also be used by forward mode.
---
 internal/fusefrontend_reverse/rfile.go | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

(limited to 'internal/fusefrontend_reverse/rfile.go')

diff --git a/internal/fusefrontend_reverse/rfile.go b/internal/fusefrontend_reverse/rfile.go
index b19ad5e..530547a 100644
--- a/internal/fusefrontend_reverse/rfile.go
+++ b/internal/fusefrontend_reverse/rfile.go
@@ -33,11 +33,6 @@ type reverseFile struct {
 
 var inodeTable syncmap.Map
 
-type derivedIVContainer struct {
-	id       []byte
-	block0IV []byte
-}
-
 func (rfs *ReverseFS) newFile(relPath string, flags uint32) (nodefs.File, fuse.Status) {
 	absPath, err := rfs.abs(rfs.decryptPath(relPath))
 	if err != nil {
@@ -55,14 +50,13 @@ func (rfs *ReverseFS) newFile(relPath string, flags uint32) (nodefs.File, fuse.S
 	}
 	// See if we have that inode number already in the table
 	// (even if Nlink has dropped to 1)
-	var derivedIVs derivedIVContainer
+	var derivedIVs pathiv.FileIVs
 	v, found := inodeTable.Load(st.Ino)
 	if found {
 		tlog.Debug.Printf("ino%d: newFile: found in the inode table", st.Ino)
-		derivedIVs = v.(derivedIVContainer)
+		derivedIVs = v.(pathiv.FileIVs)
 	} else {
-		derivedIVs.id = pathiv.Derive(relPath, pathiv.PurposeFileID)
-		derivedIVs.block0IV = pathiv.Derive(relPath, pathiv.PurposeBlock0IV)
+		derivedIVs = pathiv.DeriveFile(relPath)
 		// Nlink > 1 means there is more than one path to this file.
 		// Store the derived values so we always return the same data,
 		// regardless of the path that is used to access the file.
@@ -71,7 +65,7 @@ func (rfs *ReverseFS) newFile(relPath string, flags uint32) (nodefs.File, fuse.S
 			v, found = inodeTable.LoadOrStore(st.Ino, derivedIVs)
 			if found {
 				// Another thread has stored a different value before we could.
-				derivedIVs = v.(derivedIVContainer)
+				derivedIVs = v.(pathiv.FileIVs)
 			} else {
 				tlog.Debug.Printf("ino%d: newFile: Nlink=%d, stored in the inode table", st.Ino, st.Nlink)
 			}
@@ -79,13 +73,13 @@ func (rfs *ReverseFS) newFile(relPath string, flags uint32) (nodefs.File, fuse.S
 	}
 	header := contentenc.FileHeader{
 		Version: contentenc.CurrentVersion,
-		ID:      derivedIVs.id,
+		ID:      derivedIVs.ID,
 	}
 	return &reverseFile{
 		File:       nodefs.NewDefaultFile(),
 		fd:         fd,
 		header:     header,
-		block0IV:   derivedIVs.block0IV,
+		block0IV:   derivedIVs.Block0IV,
 		contentEnc: rfs.contentEnc,
 	}, fuse.OK
 }
-- 
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