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buf0types.h
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1 /*****************************************************************************
2 
3 Copyright (c) 1995, 2013, Oracle and/or its affiliates. All Rights Reserved
4 
5 This program is free software; you can redistribute it and/or modify it under
6 the terms of the GNU General Public License as published by the Free Software
7 Foundation; version 2 of the License.
8 
9 This program is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12 
13 You should have received a copy of the GNU General Public License along with
14 this program; if not, write to the Free Software Foundation, Inc.,
15 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
16 
17 *****************************************************************************/
18 
19 /**************************************************/
26 #ifndef buf0types_h
27 #define buf0types_h
28 
30 struct buf_page_t;
32 struct buf_block_t;
34 struct buf_chunk_t;
36 struct buf_pool_t;
38 struct buf_pool_stat_t;
40 struct buf_buddy_stat_t;
42 struct buf_dblwr_t;
43 
45 typedef byte buf_frame_t;
46 
48 enum buf_flush_t {
49  BUF_FLUSH_LRU = 0,
50  BUF_FLUSH_LIST,
52  BUF_FLUSH_SINGLE_PAGE,
54  BUF_FLUSH_N_TYPES
55 };
56 
59 enum buf_remove_t {
60  BUF_REMOVE_ALL_NO_WRITE,
62  BUF_REMOVE_FLUSH_NO_WRITE,
64  BUF_REMOVE_FLUSH_WRITE
66 };
67 
69 enum buf_io_fix {
70  BUF_IO_NONE = 0,
71  BUF_IO_READ,
72  BUF_IO_WRITE,
73  BUF_IO_PIN
76 };
77 
80 enum srv_checksum_algorithm_t {
81  SRV_CHECKSUM_ALGORITHM_CRC32,
83  SRV_CHECKSUM_ALGORITHM_STRICT_CRC32,
85  SRV_CHECKSUM_ALGORITHM_INNODB,
87  SRV_CHECKSUM_ALGORITHM_STRICT_INNODB,
89  SRV_CHECKSUM_ALGORITHM_NONE,
91  SRV_CHECKSUM_ALGORITHM_STRICT_NONE
93 };
94 
96 /* @{ */
98 #define BUF_BUDDY_LOW_SHIFT UNIV_ZIP_SIZE_SHIFT_MIN
99 
101 #define BUF_BUDDY_LOW (1U << BUF_BUDDY_LOW_SHIFT)
102 
104 #define BUF_BUDDY_SIZES (UNIV_PAGE_SIZE_SHIFT - BUF_BUDDY_LOW_SHIFT)
105 
107 #define BUF_BUDDY_SIZES_MAX (UNIV_PAGE_SIZE_SHIFT_MAX \
108  - BUF_BUDDY_LOW_SHIFT)
109 
113 #define BUF_BUDDY_HIGH (BUF_BUDDY_LOW << BUF_BUDDY_SIZES)
114 /* @} */
115 
116 #endif /* buf0types.h */