refactoring fuse

weed/command/mount_std.go

@@ -4,18 +4,13 @@ package command
 
 import (
 	"fmt"
-	"os"
 	"runtime"
 
-	"path"
-
 	"bazil.org/fuse"
 	"bazil.org/fuse/fs"
-	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/storage"
 	"github.com/chrislusf/seaweedfs/weed/util"
-	"golang.org/x/net/context"
+	"github.com/chrislusf/seaweedfs/weed/filesys"
 )
 
 func runMount(cmd *Command, args []string) bool {
@@ -25,6 +20,8 @@ func runMount(cmd *Command, args []string) bool {
 		return false
 	}
 
+	fuse.Unmount(*mountOptions.dir)
+
 	c, err := fuse.Mount(*mountOptions.dir, fuse.LocalVolume())
 	if err != nil {
 		glog.Fatal(err)
@@ -36,7 +33,7 @@ func runMount(cmd *Command, args []string) bool {
 		c.Close()
 	})
 
-	err = fs.Serve(c, WFS{})
+	err = fs.Serve(c, filesys.NewSeaweedFileSystem(*mountOptions.filer))
 	if err != nil {
 		fuse.Unmount(*mountOptions.dir)
 	}
@@ -49,96 +46,3 @@ func runMount(cmd *Command, args []string) bool {
 
 	return true
 }
-
-type WFS struct{}
-
-func (WFS) Root() (fs.Node, error) {
-	return &Dir{Path: "/"}, nil
-}
-
-var fileIdMap = make(map[uint64]filer.FileId)
-
-type Dir struct {
-	Path      string
-	DirentMap map[string]*fuse.Dirent
-}
-
-func (dir *Dir) Attr(context context.Context, attr *fuse.Attr) error {
-	attr.Mode = os.ModeDir | 0555
-	return nil
-}
-
-func (dir *Dir) Lookup(ctx context.Context, name string) (fs.Node, error) {
-	if entry, err := filer.LookupDirectoryEntry(*mountOptions.filer, dir.Path, name); err == nil {
-		if !entry.Found {
-			return nil, fuse.ENOENT
-		}
-		if entry.FileId != "" {
-			return &File{FileId: filer.FileId(entry.FileId), Name: name}, nil
-		} else {
-			return &Dir{Path: path.Join(dir.Path, name)}, nil
-		}
-	}
-
-	return nil, fuse.ENOENT
-}
-
-func (dir *Dir) ReadDirAll(ctx context.Context) ([]fuse.Dirent, error) {
-	var ret []fuse.Dirent
-	if dir.DirentMap == nil {
-		dir.DirentMap = make(map[string]*fuse.Dirent)
-	}
-	if dirs, e := filer.ListDirectories(*mountOptions.filer, dir.Path); e == nil {
-		for _, d := range dirs.Directories {
-			dirent := fuse.Dirent{Name: string(d), Type: fuse.DT_Dir}
-			ret = append(ret, dirent)
-			dir.DirentMap[string(d)] = &dirent
-		}
-	}
-	if files, e := filer.ListFiles(*mountOptions.filer, dir.Path, ""); e == nil {
-		for _, f := range files.Files {
-			if fileId, e := storage.ParseFileId(string(f.Id)); e == nil {
-				fileInode := uint64(fileId.VolumeId)<<48 + fileId.Key
-				dirent := fuse.Dirent{Name: f.Name, Type: fuse.DT_File}
-				ret = append(ret, dirent)
-				dir.DirentMap[f.Name] = &dirent
-				fileIdMap[fileInode] = f.Id
-			}
-		}
-	}
-	return ret, nil
-}
-
-func (dir *Dir) Remove(ctx context.Context, req *fuse.RemoveRequest) error {
-	name := path.Join(dir.Path, req.Name)
-	err := filer.DeleteDirectoryOrFile(*mountOptions.filer, name, req.Dir)
-	if err != nil {
-		fmt.Printf("Delete file %s [ERROR] %s\n", name, err)
-	}
-	return err
-}
-
-type File struct {
-	FileId filer.FileId
-	Name   string
-}
-
-func (file *File) Attr(context context.Context, attr *fuse.Attr) error {
-	attr.Mode = 0444
-	ret, err := filer.GetFileSize(*mountOptions.filer, string(file.FileId))
-	if err == nil {
-		attr.Size = ret.Size
-	} else {
-		fmt.Printf("Get file %s attr [ERROR] %s\n", file.Name, err)
-	}
-	return err
-}
-
-func (file *File) ReadAll(ctx context.Context) ([]byte, error) {
-	ret, err := filer.GetFileContent(*mountOptions.filer, string(file.FileId))
-	if err == nil {
-		return ret.Content, nil
-	}
-	fmt.Printf("Get file %s content [ERROR] %s\n", file.Name, err)
-	return nil, err
-}

weed/filesys/dir.go

@@ -0,0 +1,62 @@
+package filesys
+
+import (
+	"bazil.org/fuse/fs"
+	"bazil.org/fuse"
+	"context"
+	"os"
+	"fmt"
+	"path"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+)
+
+type Dir struct {
+	Path string
+	wfs  *WFS
+}
+
+func (dir *Dir) Attr(context context.Context, attr *fuse.Attr) error {
+	attr.Mode = os.ModeDir | 0555
+	return nil
+}
+
+func (dir *Dir) Lookup(ctx context.Context, name string) (fs.Node, error) {
+	if entry, err := filer.LookupDirectoryEntry(dir.wfs.filer, dir.Path, name); err == nil {
+		if !entry.Found {
+			return nil, fuse.ENOENT
+		}
+		if entry.FileId != "" {
+			return &File{FileId: filer.FileId(entry.FileId), Name: name, wfs: dir.wfs}, nil
+		} else {
+			return &Dir{Path: path.Join(dir.Path, name), wfs: dir.wfs}, nil
+		}
+	}
+
+	return nil, fuse.ENOENT
+}
+
+func (dir *Dir) ReadDirAll(ctx context.Context) ([]fuse.Dirent, error) {
+	var ret []fuse.Dirent
+	if dirs, e := filer.ListDirectories(dir.wfs.filer, dir.Path); e == nil {
+		for _, d := range dirs.Directories {
+			dirent := fuse.Dirent{Name: string(d), Type: fuse.DT_Dir}
+			ret = append(ret, dirent)
+		}
+	}
+	if files, e := filer.ListFiles(dir.wfs.filer, dir.Path, ""); e == nil {
+		for _, f := range files.Files {
+			dirent := fuse.Dirent{Name: f.Name, Type: fuse.DT_File}
+			ret = append(ret, dirent)
+		}
+	}
+	return ret, nil
+}
+
+func (dir *Dir) Remove(ctx context.Context, req *fuse.RemoveRequest) error {
+	name := path.Join(dir.Path, req.Name)
+	err := filer.DeleteDirectoryOrFile(dir.wfs.filer, name, req.Dir)
+	if err != nil {
+		fmt.Printf("Delete file %s [ERROR] %s\n", name, err)
+	}
+	return err
+}

weed/filesys/file.go

@@ -0,0 +1,34 @@
+package filesys
+
+import (
+	"bazil.org/fuse"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"context"
+)
+
+type File struct {
+	FileId filer.FileId
+	Name   string
+	wfs    *WFS
+}
+
+func (file *File) Attr(context context.Context, attr *fuse.Attr) error {
+	attr.Mode = 0444
+	ret, err := filer.GetFileSize(file.wfs.filer, string(file.FileId))
+	if err == nil {
+		attr.Size = ret.Size
+	} else {
+		fmt.Printf("Get file %s attr [ERROR] %s\n", file.Name, err)
+	}
+	return err
+}
+
+func (file *File) ReadAll(ctx context.Context) ([]byte, error) {
+	ret, err := filer.GetFileContent(file.wfs.filer, string(file.FileId))
+	if err == nil {
+		return ret.Content, nil
+	}
+	fmt.Printf("Get file %s content [ERROR] %s\n", file.Name, err)
+	return nil, err
+}

weed/filesys/wfs.go

@@ -0,0 +1,17 @@
+package filesys
+
+import "bazil.org/fuse/fs"
+
+type WFS struct {
+	filer string
+}
+
+func NewSeaweedFileSystem(filer string) *WFS {
+	return &WFS{
+		filer: filer,
+	}
+}
+
+func (wfs *WFS) Root() (fs.Node, error) {
+	return &Dir{Path: "/", wfs: wfs}, nil
+}