ledisdb/store/mdb/batch.go

33 lines
478 B
Go

package mdb
type Write struct {
Key []byte
Value []byte
}
type WriteBatch struct {
db *MDB
wb []Write
}
func (w *WriteBatch) Close() error {
return nil
}
func (w *WriteBatch) Put(key, value []byte) {
w.wb = append(w.wb, Write{key, value})
}
func (w *WriteBatch) Delete(key []byte) {
w.wb = append(w.wb, Write{key, nil})
}
func (w *WriteBatch) Commit() error {
return w.db.BatchPut(w.wb)
}
func (w *WriteBatch) Rollback() error {
w.wb = w.wb[0:0]
return nil
}