| 1 | /* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
| 2 | |
| 3 | This program is free software; you can redistribute it and/or modify |
| 4 | it under the terms of the GNU General Public License as published by |
| 5 | the Free Software Foundation; version 2 of the License. |
| 6 | |
| 7 | This program is distributed in the hope that it will be useful, |
| 8 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | GNU General Public License for more details. |
| 11 | |
| 12 | You should have received a copy of the GNU General Public License |
| 13 | along with this program; if not, write to the Free Software |
| 14 | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ |
| 15 | |
| 16 | #ifndef CURSOR_BY_ACCOUNT_H |
| 17 | #define CURSOR_BY_ACCOUNT_H |
| 18 | |
| 19 | /** |
| 20 | @file storage/perfschema/cursor_by_account.h |
| 21 | Cursor CURSOR_BY_ACCOUNT (declarations). |
| 22 | */ |
| 23 | |
| 24 | #include "pfs_engine_table.h" |
| 25 | #include "pfs_account.h" |
| 26 | #include "table_helper.h" |
| 27 | |
| 28 | /** |
| 29 | @addtogroup Performance_schema_tables |
| 30 | @{ |
| 31 | */ |
| 32 | |
| 33 | /** Cursor CURSOR_BY_ACCOUNT. */ |
| 34 | class cursor_by_account : public PFS_engine_table |
| 35 | { |
| 36 | public: |
| 37 | virtual int rnd_next(); |
| 38 | virtual int rnd_pos(const void *pos); |
| 39 | virtual void reset_position(void); |
| 40 | |
| 41 | protected: |
| 42 | cursor_by_account(const PFS_engine_table_share *share); |
| 43 | |
| 44 | public: |
| 45 | ~cursor_by_account() |
| 46 | {} |
| 47 | |
| 48 | protected: |
| 49 | virtual void make_row(PFS_account *account)= 0; |
| 50 | |
| 51 | private: |
| 52 | /** Current position. */ |
| 53 | PFS_simple_index m_pos; |
| 54 | /** Next position. */ |
| 55 | PFS_simple_index m_next_pos; |
| 56 | }; |
| 57 | |
| 58 | /** @} */ |
| 59 | #endif |
| 60 | |