alex/vfs
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This commit is contained in:
Alex Yatskov 2015-06-16 14:32:03 +09:00
parent 4404362eb9
commit 1b44c1e1a6
5 changed files with 24 additions and 33 deletions
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4
database.go
View File

@ -103,10 +103,6 @@ func (this *database) buildVersions(base string) ([]*version, error) {
prev = ver
}
for _, ver := range vers {
ver.last = vers[len(vers)-1]
}
return vers, nil
}

9
dir.go
View File

@ -58,7 +58,7 @@ func (this *versionedDir) createDir(name string) (*versionedDir, error) {
return nil, err
}
node, err := newVersionedNode(childPath, this.node.ver)
node, err := newVersionedNode(childPath, this.node.ver, nil)
if err != nil {
return nil, err
}
@ -77,7 +77,7 @@ func (this *versionedDir) createFile(name string, flags int) (*versionedFile, er
return nil, err
}
node, err := newVersionedNode(childPath, this.node.ver)
node, err := newVersionedNode(childPath, this.node.ver, nil)
if err != nil {
return nil, err
}
@ -89,9 +89,10 @@ func (this *versionedDir) createFile(name string, flags int) (*versionedFile, er
return file, nil
}
func (this *versionedDir) Attr(attr *fuse.Attr) {
func (this *versionedDir) Attr(ctx context.Context, attr *fuse.Attr) error {
this.node.attr(attr)
attr.Inode = this.inode
return nil
}
func (this *versionedDir) Getattr(ctx context.Context, req *fuse.GetattrRequest, resp *fuse.GetattrResponse) error {
@ -99,7 +100,7 @@ func (this *versionedDir) Getattr(ctx context.Context, req *fuse.GetattrRequest,
return err
}
this.Attr(&resp.Attr)
this.Attr(ctx, &resp.Attr)
return nil
}

5
file.go
View File

@ -62,9 +62,10 @@ func (this *versionedFile) Open(ctx context.Context, req *fuse.OpenRequest, resp
return this, nil
}
func (this *versionedFile) Attr(attr *fuse.Attr) {
func (this *versionedFile) Attr(ctx context.Context, attr *fuse.Attr) error {
this.node.attr(attr)
attr.Inode = this.inode
return nil
}
func (this *versionedFile) Getattr(ctx context.Context, req *fuse.GetattrRequest, resp *fuse.GetattrResponse) error {
@ -72,7 +73,7 @@ func (this *versionedFile) Getattr(ctx context.Context, req *fuse.GetattrRequest
return err
}
this.Attr(&resp.Attr)
this.Attr(ctx, &resp.Attr)
return nil
}

17
node.go
View File

@ -37,21 +37,22 @@ type versionedNode struct {
path string
info os.FileInfo
ver *version
parent *versionedNode
}
type versionedNodeMap map[string]*versionedNode
func newVersionedNode(path string, ver *version) (*versionedNode, error) {
func newVersionedNode(path string, ver *version, parent *versionedNode) (*versionedNode, error) {
info, err := os.Stat(ver.rebasePath(path))
if err != nil {
return nil, err
}
return newVersionedNodeStat(path, ver, info), nil
return newVersionedNodeStat(path, ver, parent, info), nil
}
func newVersionedNodeStat(path string, ver *version, info os.FileInfo) *versionedNode {
return &versionedNode{path, info, ver}
func newVersionedNodeStat(path string, ver *version, parent *versionedNode, info os.FileInfo) *versionedNode {
return &versionedNode{path, info, ver, parent}
}
func (this *versionedNode) setAttr(req *fuse.SetattrRequest, resp *fuse.SetattrResponse) error {
@ -111,14 +112,6 @@ func (this *versionedNode) rebasedPath() string {
return this.ver.rebasePath(this.path)
}
func (this *versionedNode) rebasedTermPath() string {
if this.ver.last == nil {
return this.rebasedPath()
}
return this.ver.last.rebasePath(this.path)
}
func (this *versionedNode) owner() (gid, uid uint32) {
stat := this.info.Sys().(*syscall.Stat_t)

16
version.go
View File

@ -42,14 +42,13 @@ import (
type version struct {
base string
prev *version
last *version
parent *version
timestamp time.Time
meta *versionMetadata
root *versionedDir
}
func newVersion(base string, timestamp time.Time, prev *version) (*version, error) {
func newVersion(base string, timestamp time.Time, parent *version) (*version, error) {
meta, err := newVersionMetadata(filepath.Join(base, "meta.json"))
if err != nil {
return nil, err
@ -57,7 +56,7 @@ func newVersion(base string, timestamp time.Time, prev *version) (*version, erro
ver := &version{
base: base,
prev: prev,
parent: parent,
timestamp: timestamp,
meta: meta}
@ -66,10 +65,10 @@ func newVersion(base string, timestamp time.Time, prev *version) (*version, erro
func (this *version) scanNode(node *versionedNode) (versionedNodeMap, error) {
var baseNodes versionedNodeMap
if this.prev != nil {
if this.parent != nil {
var err error
baseNodes, err = this.prev.scanNode(node)
baseNodes, err = this.parent.scanNode(node)
if err != nil {
return nil, err
}
@ -88,7 +87,7 @@ func (this *version) scanNode(node *versionedNode) (versionedNodeMap, error) {
for _, info := range infos {
childName := info.Name()
childPath := filepath.Join(node.path, childName)
ownNodes[childName] = newVersionedNodeStat(childPath, this, info)
ownNodes[childName] = newVersionedNodeStat(childPath, this, nil, info)
}
}
@ -100,6 +99,7 @@ func (this *version) scanNode(node *versionedNode) (versionedNodeMap, error) {
}
for ownName, ownNode := range ownNodes {
ownNode.parent, _ = baseNodes[ownName]
baseNodes[ownName] = ownNode
}
@ -129,7 +129,7 @@ func (this *version) buildVerDir(dir *versionedDir) error {
}
func (this *version) resolve() error {
node, err := newVersionedNode("/", this)
node, err := newVersionedNode("/", this, nil)
if err != nil {
return err
}