82 lines
1.5 KiB
Go
82 lines
1.5 KiB
Go
package splitstore
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import (
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"time"
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"golang.org/x/xerrors"
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cid "github.com/ipfs/go-cid"
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bolt "go.etcd.io/bbolt"
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)
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type BoltLiveSetEnv struct {
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db *bolt.DB
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}
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var _ LiveSetEnv = (*BoltLiveSetEnv)(nil)
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type BoltLiveSet struct {
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db *bolt.DB
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bucketId []byte
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}
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var _ LiveSet = (*BoltLiveSet)(nil)
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func NewBoltLiveSetEnv(path string) (*BoltLiveSetEnv, error) {
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db, err := bolt.Open(path, 0644,
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&bolt.Options{
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Timeout: 1 * time.Second,
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NoSync: true,
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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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return &BoltLiveSetEnv{db: db}, nil
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}
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func (e *BoltLiveSetEnv) NewLiveSet(name string, hint int64) (LiveSet, error) {
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bucketId := []byte(name)
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err := e.db.Update(func(tx *bolt.Tx) error {
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_, err := tx.CreateBucketIfNotExists(bucketId)
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if err != nil {
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return xerrors.Errorf("error creating bolt db bucket %s: %w", name, err)
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}
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return nil
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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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return &BoltLiveSet{db: e.db, bucketId: bucketId}, nil
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}
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func (e *BoltLiveSetEnv) Close() error {
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return e.db.Close()
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}
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func (s *BoltLiveSet) Mark(cid cid.Cid) error {
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return s.db.Update(func(tx *bolt.Tx) error {
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b := tx.Bucket(s.bucketId)
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return b.Put(cid.Hash(), markBytes)
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})
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}
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func (s *BoltLiveSet) Has(cid cid.Cid) (result bool, err error) {
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err = s.db.View(func(tx *bolt.Tx) error {
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b := tx.Bucket(s.bucketId)
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v := b.Get(cid.Hash())
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result = v != nil
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return nil
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})
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return result, err
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}
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func (s *BoltLiveSet) Close() error {
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return s.db.Update(func(tx *bolt.Tx) error {
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return tx.DeleteBucket(s.bucketId)
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})
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}
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