34 lines
697 B
Go
34 lines
697 B
Go
package node
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import (
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"database/sql"
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"github.com/status-im/mvds/state"
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)
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type epochSQLitePersistence struct {
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db *sql.DB
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}
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func newEpochSQLitePersistence(db *sql.DB) *epochSQLitePersistence {
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return &epochSQLitePersistence{db: db}
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}
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func (p *epochSQLitePersistence) Get(nodeID state.PeerID) (epoch int64, err error) {
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row := p.db.QueryRow(`SELECT epoch FROM mvds_epoch WHERE peer_id = ?`, nodeID[:])
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err = row.Scan(&epoch)
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if err == sql.ErrNoRows {
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err = nil
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}
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return
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}
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func (p *epochSQLitePersistence) Set(nodeID state.PeerID, epoch int64) error {
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_, err := p.db.Exec(`
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INSERT OR REPLACE INTO mvds_epoch (peer_id, epoch) VALUES (?, ?)`,
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nodeID[:],
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epoch,
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)
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return err
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}
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