1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
// +build linux darwin
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"
)
func runMount(cmd *Command, args []string) bool {
fmt.Printf("This is SeaweedFS version %s %s %s\n", util.VERSION, runtime.GOOS, runtime.GOARCH)
if *mountOptions.dir == "" {
fmt.Printf("Please specify the mount directory via \"-dir\"")
return false
}
c, err := fuse.Mount(*mountOptions.dir, fuse.LocalVolume())
if err != nil {
glog.Fatal(err)
return false
}
util.OnInterrupt(func() {
fuse.Unmount(*mountOptions.dir)
c.Close()
})
err = fs.Serve(c, WFS{})
if err != nil {
fuse.Unmount(*mountOptions.dir)
}
// check if the mount process has an error to report
<-c.Ready
if err := c.MountError; err != nil {
glog.Fatal(err)
}
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 {
Id uint64
Path string
DirentMap map[string]*fuse.Dirent
}
func (dir *Dir) Attr(context context.Context, attr *fuse.Attr) error {
attr.Inode = dir.Id
attr.Mode = os.ModeDir | 0555
return nil
}
func (dir *Dir) Lookup(ctx context.Context, name string) (fs.Node, error) {
if dirent, ok := dir.DirentMap[name]; ok {
if dirent.Type == fuse.DT_File {
return &File{Id: dirent.Inode, FileId: fileIdMap[dirent.Inode], Name: dirent.Name}, nil
}
return &Dir{
Id: dirent.Inode,
Path: path.Join(dir.Path, dirent.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 {
dirId := uint64(d.Id)
dirent := fuse.Dirent{Inode: dirId, Name: d.Name, Type: fuse.DT_Dir}
ret = append(ret, dirent)
dir.DirentMap[d.Name] = &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{Inode: fileInode, 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 {
Id uint64
FileId filer.FileId
Name string
}
func (file *File) Attr(context context.Context, attr *fuse.Attr) error {
attr.Inode = file.Id
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
}
|
