mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2025-01-15 06:28:20 +00:00
1c8ac6658e
* include new getter for block * create block filters from indices * give every block index a unique bucket * construct block indices by bucket mmap * almost done save for the block filters * include block filters, need a few more small touches for fetching the proper indices by bucket * full functionality to filter by parent root * tests pass when using the same logic as attestations * todo * proper todo formatting * first minimum slot range filter * slot range filters pass * more filter criteria passing * tests passing * add todos * all block tests pass and work * rem fmt * range retrieval test * fixed test conditions * instantiate the other buckets * simplify bucket lookups * deprecate non map code * revamp to remove old index prefixes * create indices from data * create indices from data * fetch block roots by slot range * better abstractions * simpler abstractions * roots rename * comment * preston feedback * allow blocks without parent root
85 lines
2.0 KiB
Go
85 lines
2.0 KiB
Go
package kv
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import (
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"os"
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"path"
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"time"
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"github.com/boltdb/bolt"
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"github.com/pkg/errors"
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)
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// Store defines an implementation of the Prysm Database interface
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// using BoltDB as the underlying persistent kv-store for eth2.
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type Store struct {
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db *bolt.DB
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databasePath string
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}
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// NewKVStore initializes a new boltDB key-value store at the directory
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// path specified, creates the kv-buckets based on the schema, and stores
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// an open connection db object as a property of the Store struct.
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func NewKVStore(dirPath string) (*Store, error) {
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if err := os.MkdirAll(dirPath, 0700); err != nil {
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return nil, err
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}
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datafile := path.Join(dirPath, "beaconchain.db")
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boltDB, err := bolt.Open(datafile, 0600, &bolt.Options{Timeout: 1 * time.Second})
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if err != nil {
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if err == bolt.ErrTimeout {
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return nil, errors.New("cannot obtain database lock, database may be in use by another process")
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}
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return nil, err
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}
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kv := &Store{db: boltDB, databasePath: dirPath}
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if err := kv.db.Update(func(tx *bolt.Tx) error {
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return createBuckets(
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tx,
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attestationsBucket,
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blocksBucket,
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stateBucket,
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validatorsBucket,
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// Indices buckets.
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attestationShardIndicesBucket,
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attestationParentRootIndicesBucket,
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attestationStartEpochIndicesBucket,
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attestationEndEpochIndicesBucket,
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blockSlotIndicesBucket,
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blockParentRootIndicesBucket,
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)
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}); err != nil {
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return nil, err
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}
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return kv, err
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}
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// ClearDB removes the previously stored directory at the data directory.
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func (k *Store) ClearDB() error {
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if _, err := os.Stat(k.databasePath); os.IsNotExist(err) {
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return nil
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}
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return os.RemoveAll(k.databasePath)
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}
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// Close closes the underlying BoltDB database.
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func (k *Store) Close() error {
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return k.db.Close()
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}
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// DatabasePath at which this database writes files.
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func (k *Store) DatabasePath() string {
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return k.databasePath
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}
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func createBuckets(tx *bolt.Tx, buckets ...[]byte) error {
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for _, bucket := range buckets {
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if _, err := tx.CreateBucketIfNotExists(bucket); err != nil {
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return err
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}
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}
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return nil
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}
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