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storage: remove check for DELETE type KeyValue

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kvindex always returns kvs that exist at given revision, so there is no
need to check for whether the KeyValue range from backend is DELETE type.
This commit is contained in:
Yicheng Qin 2015-09-03 15:13:20 -07:00
parent 00e31f13a6
commit 797a4796d9
1 changed files with 4 additions and 36 deletions
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40
storage/kvstore.go
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@ -319,9 +319,7 @@ func (s *store) rangeKeys(key, end []byte, limit, rangeRev int64) (kvs []storage
if err := e.Unmarshal(vs[0]); err != nil {
log.Fatalf("storage: cannot unmarshal event: %v", err)
}
if e.Type == storagepb.PUT {
kvs = append(kvs, *e.Kv)
}
kvs = append(kvs, *e.Kv)
if limit > 0 && len(kvs) >= int(limit) {
break
}
@ -369,7 +367,6 @@ func (s *store) put(key, value []byte) {
func (s *store) deleteRange(key, end []byte) int64 {
rev := s.currentRev.main + 1
var n int64
rrev := rev
if s.currentRev.sub > 0 {
rrev += 1
@ -381,46 +378,18 @@ func (s *store) deleteRange(key, end []byte) int64 {
}
for _, key := range keys {
ok := s.delete(key)
if ok {
n++
}
s.delete(key)
}
return n
return int64(len(keys))
}
func (s *store) delete(key []byte) bool {
func (s *store) delete(key []byte) {
mainrev := s.currentRev.main + 1
grev := mainrev
if s.currentRev.sub > 0 {
grev += 1
}
rev, _, _, err := s.kvindex.Get(key, grev)
if err != nil {
// key not exist
return false
}
tx := s.b.BatchTx()
tx.Lock()
defer tx.Unlock()
revbytes := newRevBytes()
revToBytes(rev, revbytes)
_, vs := tx.UnsafeRange(keyBucketName, revbytes, nil, 0)
if len(vs) != 1 {
log.Fatalf("storage: delete cannot find rev (%d,%d)", rev.main, rev.sub)
}
e := &storagepb.Event{}
if err := e.Unmarshal(vs[0]); err != nil {
log.Fatalf("storage: cannot unmarshal event: %v", err)
}
if e.Type == storagepb.DELETE {
return false
}
ibytes := newRevBytes()
revToBytes(revision{main: mainrev, sub: s.currentRev.sub}, ibytes)
@ -442,5 +411,4 @@ func (s *store) delete(key []byte) bool {
log.Fatalf("storage: cannot tombstone an existing key (%s): %v", string(key), err)
}
s.currentRev.sub += 1
return true
}