forked from TrueCloudLab/frostfs-node
73 lines
1.6 KiB
Go
73 lines
1.6 KiB
Go
package meta
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import (
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"fmt"
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objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object"
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"go.etcd.io/bbolt"
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)
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// ToMoveIt marks objects to move it into another shard. This useful for
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// faster HRW fetching.
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func (db *DB) ToMoveIt(addr *objectSDK.Address) error {
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return db.boltDB.Update(func(tx *bbolt.Tx) error {
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toMoveIt, err := tx.CreateBucketIfNotExists(toMoveItBucketName)
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if err != nil {
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return err
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}
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return toMoveIt.Put(addressKey(addr), zeroValue)
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})
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}
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// DoNotMove removes `MoveIt` mark from the object.
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func (db *DB) DoNotMove(addr *objectSDK.Address) error {
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return db.boltDB.Update(func(tx *bbolt.Tx) error {
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toMoveIt := tx.Bucket(toMoveItBucketName)
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if toMoveIt == nil {
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return nil
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}
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return toMoveIt.Delete(addressKey(addr))
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})
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}
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// Movable returns list of marked objects to move into other shard.
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func (db *DB) Movable() ([]*objectSDK.Address, error) {
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var strAddrs []string
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err := db.boltDB.View(func(tx *bbolt.Tx) error {
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toMoveIt := tx.Bucket(toMoveItBucketName)
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if toMoveIt == nil {
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return nil
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}
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return toMoveIt.ForEach(func(k, v []byte) error {
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strAddrs = append(strAddrs, string(k))
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return nil
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})
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})
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if err != nil {
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return nil, err
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}
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// we can parse strings to structures in-place, but probably it seems
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// more efficient to keep bolt db TX code smaller because it might be
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// bottleneck.
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addrs := make([]*objectSDK.Address, 0, len(strAddrs))
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for i := range strAddrs {
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addr := objectSDK.NewAddress()
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err = addr.Parse(strAddrs[i])
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if err != nil {
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return nil, fmt.Errorf("can't parse object address %v: %w",
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strAddrs[i], err)
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}
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addrs = append(addrs, addr)
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}
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return addrs, nil
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}
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