mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
package mount
|
|
|
|
import (
|
|
"context"
|
|
"github.com/chrislusf/seaweedfs/weed/filer"
|
|
"github.com/chrislusf/seaweedfs/weed/filesys/meta_cache"
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
"github.com/chrislusf/seaweedfs/weed/util"
|
|
"github.com/hanwen/go-fuse/v2/fuse"
|
|
"math"
|
|
"os"
|
|
)
|
|
|
|
// Directory handling
|
|
|
|
func (wfs *WFS) OpenDir(cancel <-chan struct{}, input *fuse.OpenIn, out *fuse.OpenOut) (code fuse.Status) {
|
|
if !wfs.inodeToPath.HasInode(input.NodeId) {
|
|
return fuse.ENOENT
|
|
}
|
|
return fuse.OK
|
|
}
|
|
func (wfs *WFS) ReleaseDir(input *fuse.ReleaseIn) {
|
|
}
|
|
func (wfs *WFS) FsyncDir(cancel <-chan struct{}, input *fuse.FsyncIn) (code fuse.Status) {
|
|
return fuse.OK
|
|
}
|
|
|
|
func (wfs *WFS) ReadDir(cancel <-chan struct{}, input *fuse.ReadIn, out *fuse.DirEntryList) (code fuse.Status) {
|
|
return wfs.doReadDirectory(input, out, false)
|
|
}
|
|
|
|
func (wfs *WFS) ReadDirPlus(cancel <-chan struct{}, input *fuse.ReadIn, out *fuse.DirEntryList) (code fuse.Status) {
|
|
return wfs.doReadDirectory(input, out, true)
|
|
}
|
|
|
|
func (wfs *WFS) doReadDirectory(input *fuse.ReadIn, out *fuse.DirEntryList, isPlusMode bool) fuse.Status {
|
|
dirPath := wfs.inodeToPath.GetPath(input.NodeId)
|
|
|
|
var counter uint64
|
|
var dirEntry fuse.DirEntry
|
|
if input.Offset == 0 {
|
|
counter++
|
|
dirEntry.Ino = input.NodeId
|
|
dirEntry.Name = "."
|
|
dirEntry.Mode = toSystemMode(os.ModeDir)
|
|
out.AddDirEntry(dirEntry)
|
|
|
|
counter++
|
|
parentDir, _ := dirPath.DirAndName()
|
|
parentInode := wfs.inodeToPath.GetInode(util.FullPath(parentDir))
|
|
dirEntry.Ino = parentInode
|
|
dirEntry.Name = ".."
|
|
dirEntry.Mode = toSystemMode(os.ModeDir)
|
|
out.AddDirEntry(dirEntry)
|
|
|
|
}
|
|
|
|
processEachEntryFn := func(entry *filer.Entry, isLast bool) bool {
|
|
counter++
|
|
if counter <= input.Offset {
|
|
return true
|
|
}
|
|
dirEntry.Name = entry.Name()
|
|
inode := wfs.inodeToPath.GetInode(dirPath.Child(dirEntry.Name))
|
|
dirEntry.Ino = inode
|
|
dirEntry.Mode = toSystemMode(entry.Mode)
|
|
if !isPlusMode {
|
|
if !out.AddDirEntry(dirEntry) {
|
|
return false
|
|
}
|
|
} else {
|
|
entryOut := out.AddDirLookupEntry(dirEntry)
|
|
if entryOut == nil {
|
|
return false
|
|
}
|
|
wfs.outputFilerEntry(entryOut, inode, entry)
|
|
}
|
|
return true
|
|
}
|
|
|
|
// TODO remove this with checking whether directory is not forgotten
|
|
if err := meta_cache.EnsureVisited(wfs.metaCache, wfs, dirPath); err != nil {
|
|
glog.Errorf("dir ReadDirAll %s: %v", dirPath, err)
|
|
return fuse.EIO
|
|
}
|
|
listErr := wfs.metaCache.ListDirectoryEntries(context.Background(), dirPath, "", false, int64(math.MaxInt32), func(entry *filer.Entry) bool {
|
|
return processEachEntryFn(entry, false)
|
|
})
|
|
if listErr != nil {
|
|
glog.Errorf("list meta cache: %v", listErr)
|
|
return fuse.EIO
|
|
}
|
|
|
|
return fuse.OK
|
|
}
|