41 lines
819 B
Go
41 lines
819 B
Go
package elasticstream
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import (
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"fmt"
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"log"
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"strconv"
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"github.com/boltdb/bolt"
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)
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func getOffset(db *bolt.DB, index string) (int, error) {
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offset := 0
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if err := db.Update(func(tx *bolt.Tx) error {
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b, err := tx.CreateBucketIfNotExists([]byte("position"))
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if err != nil {
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return err
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}
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v := b.Get([]byte(index))
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offset, _ = strconv.Atoi(string(v))
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return nil
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}); err != nil {
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return offset, err
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}
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return offset, nil
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}
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func setOffset(db *bolt.DB, index string, offset int) error {
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// log.Printf("setOffset() index=%s offset=%d", index, offset)
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if err := db.Update(func(tx *bolt.Tx) error {
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b := tx.Bucket([]byte("position"))
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if err := b.Put([]byte(index), []byte(fmt.Sprintf("%d", offset))); err != nil {
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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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log.Fatal(err)
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}
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return nil
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}
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