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fs: cleanup - do not cache size of metafiles (#3630)

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* Remove Size() method and size field from lock.LockedFile
* WriteTo method of fsMeta and uploadsV1 now takes concrete type *lock.LockedFile
This commit is contained in:
Krishna Srinivas
2017-01-25 12:29:06 -08:00
committed by Harshavardhana
parent 76b8abcd8e
commit 82373e3d50
10 changed files with 32 additions and 36 deletions
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14
cmd/object-api-multipart-common.go
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@@ -76,26 +76,30 @@ func (u *uploadsV1) IsEmpty() bool {
return len(u.Uploads) == 0
}
func (u *uploadsV1) WriteTo(writer io.Writer) (n int64, err error) {
func (u *uploadsV1) WriteTo(lk *lock.LockedFile) (n int64, err error) {
// Serialize to prepare to write to disk.
var uplBytes []byte
uplBytes, err = json.Marshal(u)
if err != nil {
return 0, traceError(err)
}
if err = writer.(*lock.LockedFile).Truncate(0); err != nil {
if err = lk.Truncate(0); err != nil {
return 0, traceError(err)
}
_, err = writer.Write(uplBytes)
_, err = lk.Write(uplBytes)
if err != nil {
return 0, traceError(err)
}
return int64(len(uplBytes)), nil
}
func (u *uploadsV1) ReadFrom(reader io.Reader) (n int64, err error) {
func (u *uploadsV1) ReadFrom(lk *lock.LockedFile) (n int64, err error) {
var uploadIDBytes []byte
uploadIDBytes, err = ioutil.ReadAll(reader)
fi, err := lk.Stat()
if err != nil {
return 0, traceError(err)
}
uploadIDBytes, err = ioutil.ReadAll(io.NewSectionReader(lk, 0, fi.Size()))
if err != nil {
return 0, traceError(err)
}