func (d *DIR) Create(ctx context.Context, req *fuse.CreateRequest, resp *fuse.CreateResponse) (fs.Node, fs.Handle, error) {
// TODO: XXX
//
// - Check for req.Create flags!!
// - No need to handle O_EXCL - lookup takes care of it.
// Anything else???
// - How to use the req.Umask?
//
// log.Debug("Revelo:: Create called")
acc := d.Acc
entry := d.Entry
var prefix string
if entry.Prefix == "" {
prefix = entry.Name
} else {
prefix = entry.Prefix + "/" + entry.Name
}
stat := horcrux.Stat{Mode: req.Mode, Size: 0, Uid: entry.Stat.Uid, Gid: entry.Stat.Gid}
newEntry := horcrux.Entry{Name: req.Name, Prefix: prefix, IsDir: false, Stat: stat, NumChunks: 0}
d.RData.lock.Lock()
err := dirTree.Insert(d.RData.Root, newEntry)
d.RData.lock.Unlock()
if err != nil {
log.WithFields(log.Fields{"newEntry": newEntry}).Error("Cannot insert to dir tree")
return nil, nil, err
}
if err := saveMeta(d.RData); err != nil {
log.Error("Revelo::Create: cannot update meta for create new file")
return nil, nil, err
}
f := &FILE{Acc: acc,
RData: d.RData,
Entry: newEntry,
cacheName: d.cacheDir + "/" + req.Name,
remoteName: ""}
h := &HANDLE{Acc: acc, f: f, chunkSz: f.RData.Config.ChunkSize}
f.h = h
resp.LookupResponse.Attr = fuse.Attr{Mode: stat.Mode,
Size: uint64(stat.Size),
Uid: stat.Uid,
Gid: stat.Gid}
// XXX Populate resp.OpenResponse.Flags properly
// resp.OpenResponse.Flags = ???
//XXX check the return params with fuse
return f, h, nil
}
func (d *DIR) Mkdir(ctx context.Context, req *fuse.MkdirRequest) (fs.Node, error) {
var prefix string
entry := d.Entry
if entry.Prefix == "" {
prefix = entry.Name
} else {
prefix = entry.Prefix + "/" + entry.Name
}
//XXX Revisit size value - 4k for now.
//XXX Should we use local Uid, Gid?
stat := horcrux.Stat{Mode: req.Mode, Size: 4096, Uid: entry.Stat.Uid, Gid: entry.Stat.Gid}
newEntry := horcrux.Entry{
Name: req.Name,
Prefix: prefix,
IsDir: true,
Stat: stat,
NumChunks: 0}
d.RData.lock.Lock()
err := dirTree.Insert(d.RData.Root, newEntry)
d.RData.lock.Unlock()
if err != nil {
log.WithFields(log.Fields{"newEntry": newEntry, "Error": err}).Error("Mkdir: Cannot insert new entry")
return nil, err
}
if err := saveMeta(d.RData); err != nil {
log.Error("Mkdir: save Meta failed")
// XXX May be later save meta will work... either way, it will recover after restart
// d.RData.lock.Lock()
// dirTree.Delete(d.RData.Root, prefix, req.Name)
// d.RData.lock.Unlock()
return nil, err
}
newD := &DIR{Acc: d.Acc,
RData: d.RData,
Entry: newEntry,
cacheDir: d.cacheDir + "/" + req.Name,
remoteDir: ""}
return newD, nil
}