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https://github.com/seaweedfs/seaweedfs.git
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parent
1f08010ef0
commit
cb50b720fd
@ -1,11 +1,9 @@
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package needle_map
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package needle_map
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import (
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import (
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"bytes"
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"fmt"
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"fmt"
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"io"
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"io"
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"os"
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"os"
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"sort"
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"github.com/syndtr/goleveldb/leveldb"
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"github.com/syndtr/goleveldb/leveldb"
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"github.com/syndtr/goleveldb/leveldb/iterator"
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"github.com/syndtr/goleveldb/leveldb/iterator"
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@ -36,6 +34,7 @@ func NewMemDb() *MemDb {
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}
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}
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func (cm *MemDb) Set(key NeedleId, offset Offset, size Size) error {
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func (cm *MemDb) Set(key NeedleId, offset Offset, size Size) error {
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bytes := ToBytes(key, offset, size)
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bytes := ToBytes(key, offset, size)
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if err := cm.db.Put(bytes[0:NeedleIdSize], bytes[NeedleIdSize:NeedleIdSize+OffsetSize+SizeSize], nil); err != nil {
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if err := cm.db.Put(bytes[0:NeedleIdSize], bytes[NeedleIdSize:NeedleIdSize+OffsetSize+SizeSize], nil); err != nil {
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@ -77,31 +76,6 @@ func doVisit(iter iterator.Iterator, visit func(NeedleValue) error) (ret error)
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return nil
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return nil
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}
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}
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func (cm *MemDb) AscendingVisitByOffset(visit func(NeedleValue) error) (ret error) {
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var needles []NeedleValue
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err := cm.AscendingVisit(func(value NeedleValue) error {
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needles = append(needles, value)
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return nil
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})
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if err != nil {
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return err
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}
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sort.Slice(needles, func(i, j int) bool {
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i_bytes := make([]byte, OffsetSize)
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j_bytes := make([]byte, OffsetSize)
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OffsetToBytes(i_bytes, needles[i].Offset)
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OffsetToBytes(j_bytes, needles[j].Offset)
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return bytes.Compare(i_bytes, j_bytes) < 0
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})
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for _, needle := range needles {
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ret = visit(needle)
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if ret != nil {
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return ret
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}
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}
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return nil
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}
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func (cm *MemDb) AscendingVisit(visit func(NeedleValue) error) (ret error) {
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func (cm *MemDb) AscendingVisit(visit func(NeedleValue) error) (ret error) {
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iter := cm.db.NewIterator(nil, nil)
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iter := cm.db.NewIterator(nil, nil)
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if iter.First() {
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if iter.First() {
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@ -148,7 +122,7 @@ func (cm *MemDb) SaveToIdx(idxName string) (ret error) {
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idxFile.Close()
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idxFile.Close()
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}()
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}()
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return cm.AscendingVisitByOffset(func(value NeedleValue) error {
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return cm.AscendingVisit(func(value NeedleValue) error {
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if value.Offset.IsZero() || value.Size.IsDeleted() {
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if value.Offset.IsZero() || value.Size.IsDeleted() {
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return nil
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return nil
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}
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}
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