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
|
package filesys
import (
"context"
"fmt"
"os"
"path"
"sync"
"bazil.org/fuse/fs"
"bazil.org/fuse"
"github.com/chrislusf/seaweedfs/weed/filer"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
)
type Dir struct {
Path string
NodeMap map[string]fs.Node
NodeMapLock sync.Mutex
wfs *WFS
}
func (dir *Dir) Attr(context context.Context, attr *fuse.Attr) error {
attr.Mode = os.ModeDir | 0777
return nil
}
func (dir *Dir) Mkdir(ctx context.Context, req *fuse.MkdirRequest) (fs.Node, error) {
dir.NodeMapLock.Lock()
defer dir.NodeMapLock.Unlock()
fmt.Printf("mkdir %+v\n", req)
node := &Dir{Path: path.Join(dir.Path, req.Name), wfs: dir.wfs}
dir.NodeMap[req.Name] = node
return node, nil
}
func (dir *Dir) Lookup(ctx context.Context, name string) (node fs.Node, err error) {
dir.NodeMapLock.Lock()
defer dir.NodeMapLock.Unlock()
if dir.NodeMap == nil {
dir.NodeMap = make(map[string]fs.Node)
}
if node, ok := dir.NodeMap[name]; ok {
return node, nil
}
var entry *filer_pb.Entry
err = dir.wfs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.LookupDirectoryEntryRequest{
Directory: dir.Path,
Name: name,
}
glog.V(1).Infof("lookup directory entry: %v", request)
resp, err := client.LookupDirectoryEntry(ctx, request)
if err != nil {
return err
}
entry = resp.Entry
return nil
})
if entry != nil {
if entry.IsDirectory {
node = &Dir{Path: path.Join(dir.Path, name), wfs: dir.wfs}
} else {
node = &File{FileId: filer.FileId(entry.FileId), Name: name, wfs: dir.wfs}
}
dir.NodeMap[name] = node
return node, nil
}
return nil, err
}
func (dir *Dir) ReadDirAll(ctx context.Context) (ret []fuse.Dirent, err error) {
err = dir.wfs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.ListEntriesRequest{
Directory: dir.Path,
}
glog.V(1).Infof("read directory: %v", request)
resp, err := client.ListEntries(ctx, request)
if err != nil {
return err
}
for _, entry := range resp.Entries {
if entry.IsDirectory {
dirent := fuse.Dirent{Name: entry.Name, Type: fuse.DT_Dir}
ret = append(ret, dirent)
} else {
dirent := fuse.Dirent{Name: entry.Name, Type: fuse.DT_File}
ret = append(ret, dirent)
}
}
return nil
})
return ret, err
}
func (dir *Dir) Remove(ctx context.Context, req *fuse.RemoveRequest) error {
dir.NodeMapLock.Lock()
defer dir.NodeMapLock.Unlock()
return dir.wfs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.DeleteEntryRequest{
Directory: dir.Path,
Name: req.Name,
IsDirectory: req.Dir,
}
glog.V(1).Infof("remove directory entry: %v", request)
_, err := client.DeleteEntry(ctx, request)
if err != nil {
return err
}
delete(dir.NodeMap, req.Name)
return nil
})
}
|
