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filer: option to create file only if it is new, O_EXCL

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This commit is contained in:
Chris Lu
2020-01-22 11:42:40 -08:00
parent 9b01a99d9a
commit d4e75a0d18
11 changed files with 140 additions and 122 deletions
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30
weed/filesys/dir.go
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@@ -3,6 +3,7 @@ package filesys
import (
"context"
"os"
"strings"
"time"
"github.com/chrislusf/seaweedfs/weed/filer2"
@@ -123,26 +124,29 @@ func (dir *Dir) Create(ctx context.Context, req *fuse.CreateRequest,
TtlSec: dir.wfs.option.TtlSec,
},
},
OExcl: req.Flags&fuse.OpenExclusive != 0,
}
glog.V(1).Infof("create: %v", request)
glog.V(1).Infof("create: %v", req.String())
if request.Entry.IsDirectory {
if err := dir.wfs.WithFilerClient(ctx, func(client filer_pb.SeaweedFilerClient) error {
if _, err := client.CreateEntry(ctx, request); err != nil {
glog.V(0).Infof("create %s/%s: %v", dir.Path, req.Name, err)
return fuse.EIO
if err := dir.wfs.WithFilerClient(ctx, func(client filer_pb.SeaweedFilerClient) error {
if _, err := client.CreateEntry(ctx, request); err != nil {
glog.V(0).Infof("create %s/%s: %v", dir.Path, req.Name, err)
if strings.Contains(err.Error(), "EEXIST") {
return fuse.EEXIST
}
return nil
}); err != nil {
return nil, nil, err
return fuse.EIO
}
return nil
}); err != nil {
return nil, nil, err
}
node := dir.newFile(req.Name, request.Entry)
if request.Entry.IsDirectory {
return node, nil, nil
}
node := dir.newFile(req.Name, request.Entry)
file := node.(*File)
if !request.Entry.IsDirectory {
file.isOpen = true
}
file.isOpen = true
fh := dir.wfs.AcquireHandle(file, req.Uid, req.Gid)
fh.dirtyMetadata = true
return file, fh, nil