mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-25 02:07:55 +08:00
72 lines
1.7 KiB
Go
72 lines
1.7 KiB
Go
package skiplist
|
|
|
|
import (
|
|
"github.com/seaweedfs/seaweedfs/weed/glog"
|
|
"google.golang.org/protobuf/proto"
|
|
)
|
|
|
|
func LoadNameList(data []byte, store ListStore, batchSize int) *NameList {
|
|
|
|
nl := &NameList{
|
|
skipList: New(store),
|
|
batchSize: batchSize,
|
|
}
|
|
|
|
if len(data) == 0 {
|
|
return nl
|
|
}
|
|
|
|
message := &SkipListProto{}
|
|
if err := proto.Unmarshal(data, message); err != nil {
|
|
glog.Errorf("loading skiplist: %v", err)
|
|
}
|
|
nl.skipList.MaxNewLevel = int(message.MaxNewLevel)
|
|
nl.skipList.MaxLevel = int(message.MaxLevel)
|
|
for i, ref := range message.StartLevels {
|
|
nl.skipList.StartLevels[i] = &SkipListElementReference{
|
|
ElementPointer: ref.ElementPointer,
|
|
Key: ref.Key,
|
|
}
|
|
}
|
|
for i, ref := range message.EndLevels {
|
|
nl.skipList.EndLevels[i] = &SkipListElementReference{
|
|
ElementPointer: ref.ElementPointer,
|
|
Key: ref.Key,
|
|
}
|
|
}
|
|
return nl
|
|
}
|
|
|
|
func (nl *NameList) HasChanges() bool {
|
|
return nl.skipList.HasChanges
|
|
}
|
|
|
|
func (nl *NameList) ToBytes() []byte {
|
|
message := &SkipListProto{}
|
|
message.MaxNewLevel = int32(nl.skipList.MaxNewLevel)
|
|
message.MaxLevel = int32(nl.skipList.MaxLevel)
|
|
for _, ref := range nl.skipList.StartLevels {
|
|
if ref == nil {
|
|
break
|
|
}
|
|
message.StartLevels = append(message.StartLevels, &SkipListElementReference{
|
|
ElementPointer: ref.ElementPointer,
|
|
Key: ref.Key,
|
|
})
|
|
}
|
|
for _, ref := range nl.skipList.EndLevels {
|
|
if ref == nil {
|
|
break
|
|
}
|
|
message.EndLevels = append(message.EndLevels, &SkipListElementReference{
|
|
ElementPointer: ref.ElementPointer,
|
|
Key: ref.Key,
|
|
})
|
|
}
|
|
data, err := proto.Marshal(message)
|
|
if err != nil {
|
|
glog.Errorf("marshal skiplist: %v", err)
|
|
}
|
|
return data
|
|
}
|