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type driverResult struct {
sync.Locker // the *driverConn
resi driver.Result
}
func (dr driverResult) LastInsertId() (int64, error) {
dr.Lock()
defer dr.Unlock()
return dr.resi.LastInsertId()
}
func (dr driverResult) RowsAffected() (int64, error) {
dr.Lock()
defer dr.Unlock()
return dr.resi.RowsAffected()
func stack() string {
var buf [2 << 10]byte
return string(buf[:runtime.Stack(buf[:], false)])
}
// withLock runs while holding lk.
func withLock(lk sync.Locker, fn func()) {
lk.Lock()
defer lk.Unlock() // in case fn panics