func RawWriteMetadata(volume *gfapi.Volume, file interface{}, buf []byte) error {
var err error
for index := 0; len(buf) > 0; index++ {
var metadataName string
if index == 0 {
metadataName = "user.swift.metadata"
} else {
metadataName = "user.swift.metadata" + strconv.Itoa(index)
}
writelen := METADATA_CHUNK_SIZE
if len(buf) < writelen {
writelen = len(buf)
}
switch v := file.(type) {
case string:
err = volume.Setxattr(v, metadataName, buf[0:writelen], 0)
case *gfapi.File:
err = v.Setxattr(metadataName, buf[0:writelen], 0)
case gfapi.Fd:
err = v.Fsetxattr(metadataName, buf[0:writelen], 0)
}
if err != nil {
return err
}
buf = buf[writelen:len(buf)]
}
return nil
}
func GetXAttr(volume *gfapi.Volume, fileNameOrFd interface{}, attr string, value []byte) (int64, error) {
var err error
var ret int64
switch v := fileNameOrFd.(type) {
case string:
ret, err = volume.Getxattr(v, attr, value)
case *gfapi.File:
ret, err = v.Getxattr(attr, value)
case gfapi.Fd:
ret, err = v.Fgetxattr(attr, value)
}
return ret, err
}