107 lines
2.4 KiB
Go
107 lines
2.4 KiB
Go
package bolt
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import (
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"fmt"
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"sync/atomic"
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"time"
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"github.com/fiatjaf/eventstore"
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bolt "go.etcd.io/bbolt"
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)
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const (
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maxuint16 = 65535
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maxuint32 = 4294967295
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)
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var (
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bucketSettings = []byte{99}
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bucketRaw = []byte{1}
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bucketCreatedAt = []byte{2}
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bucketId = []byte{3}
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bucketKind = []byte{4}
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bucketPubkey = []byte{5}
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bucketPubkeyKind = []byte{6}
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bucketTag = []byte{7}
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bucketTag32 = []byte{8}
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bucketTagAddr = []byte{9}
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)
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var _ eventstore.Store = (*BoltBackend)(nil)
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type BoltBackend struct {
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Path string
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MaxLimit int
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db *bolt.DB
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lastId atomic.Uint32
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}
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func (b *BoltBackend) Init() error {
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if b.MaxLimit == 0 {
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b.MaxLimit = 500
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}
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// open boltdb
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var db *bolt.DB
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var err error
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done := make(chan struct{})
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go func() {
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db, err = bolt.Open(b.Path, 0644, nil)
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done <- struct{}{}
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}()
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select {
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case <-done:
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case <-time.After(20 * time.Second):
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return fmt.Errorf("taking too long to open the bolt database at '%s', please make sure that database is not being used elsewhere because there may be a lock in place there", b.Path)
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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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b.db = db
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// open each bucket
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if err := b.db.Update(func(txn *bolt.Tx) error {
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if _, err := txn.CreateBucket(bucketSettings); err != nil && err != bolt.ErrBucketExists {
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return err
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}
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if _, err := txn.CreateBucket(bucketRaw); err != nil && err != bolt.ErrBucketExists {
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return err
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}
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if _, err := txn.CreateBucket(bucketCreatedAt); err != nil && err != bolt.ErrBucketExists {
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return err
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}
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if _, err := txn.CreateBucket(bucketId); err != nil && err != bolt.ErrBucketExists {
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return err
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}
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if _, err := txn.CreateBucket(bucketKind); err != nil && err != bolt.ErrBucketExists {
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return err
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}
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if _, err := txn.CreateBucket(bucketPubkey); err != nil && err != bolt.ErrBucketExists {
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return err
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}
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if _, err := txn.CreateBucket(bucketPubkeyKind); err != nil && err != bolt.ErrBucketExists {
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return err
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}
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if _, err := txn.CreateBucket(bucketTag); err != nil && err != bolt.ErrBucketExists {
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return err
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}
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if _, err := txn.CreateBucket(bucketTag32); err != nil && err != bolt.ErrBucketExists {
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return err
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}
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if _, err := txn.CreateBucket(bucketTagAddr); err != nil && err != bolt.ErrBucketExists {
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return err
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}
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return nil
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}); err != nil {
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return err
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}
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return b.runMigrations()
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}
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func (b *BoltBackend) Close() {
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b.db.Close()
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}
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