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volume: support http status 304 for the same file id

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This commit is contained in:
Chris Lu
2019-04-21 13:33:23 -07:00
parent ebe94be1a1
commit 440111a349
6 changed files with 18 additions and 17 deletions
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4
weed/storage/volume_read_write.go
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@@ -77,7 +77,7 @@ func (v *Volume) AppendBlob(b []byte) (offset int64, err error) {
return
}
func (v *Volume) writeNeedle(n *needle.Needle) (offset uint64, size uint32, err error) {
func (v *Volume) writeNeedle(n *needle.Needle) (offset uint64, size uint32, isUnchanged bool, err error) {
glog.V(4).Infof("writing needle %s", needle.NewFileIdFromNeedle(v.Id, n).String())
if v.readOnly {
err = fmt.Errorf("%s is read-only", v.dataFile.Name())
@@ -87,7 +87,7 @@ func (v *Volume) writeNeedle(n *needle.Needle) (offset uint64, size uint32, err
defer v.dataFileAccessLock.Unlock()
if v.isFileUnchanged(n) {
size = n.DataSize
glog.V(4).Infof("needle is unchanged!")
isUnchanged = true
return
}