| 701 | */ |
| 702 | |
| 703 | bool Mrr_ordered_index_reader::set_interruption_temp_buffer(uint rowid_length, |
| 704 | uint key_len, |
| 705 | uint saved_pk_len, |
| 706 | uchar **space_start, |
| 707 | uchar *space_end) |
| 708 | { |
| 709 | if (space_end - *space_start <= (ptrdiff_t)(rowid_length + key_len + saved_pk_len)) |
| 710 | return TRUE; |
| 711 | support_scan_interruptions= TRUE; |
| 712 | |
| 713 | saved_rowid= *space_start; |
| 714 | *space_start += rowid_length; |
| 715 | |
| 716 | if (saved_pk_len) |
| 717 | { |
| 718 | saved_primary_key= *space_start; |
| 719 | *space_start += saved_pk_len; |
| 720 | } |
| 721 | else |
| 722 | saved_primary_key= NULL; |
| 723 | |
| 724 | saved_key_tuple= *space_start; |
| 725 | *space_start += key_len; |
| 726 | |
| 727 | have_saved_rowid= FALSE; |
| 728 | read_was_interrupted= FALSE; |
| 729 | return FALSE; |
| 730 | } |
| 731 | |
| 732 | void Mrr_ordered_index_reader::set_no_interruption_temp_buffer() |
| 733 | { |