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1 : //!
2 : //! Misc constants, copied from PostgreSQL headers.
3 : //!
4 : //! Only place version-independent constants here.
5 : //!
6 : //! TODO: These probably should be auto-generated using bindgen,
7 : //! rather than copied by hand. Although on the other hand, it's nice
8 : //! to have them all here in one place, and have the ability to add
9 : //! comments on them.
10 : //!
11 :
12 : use crate::{BLCKSZ, PageHeaderData};
13 :
14 : //
15 : // From pg_tablespace_d.h
16 : //
17 : pub const DEFAULTTABLESPACE_OID: u32 = 1663;
18 : pub const GLOBALTABLESPACE_OID: u32 = 1664;
19 :
20 : // From storage_xlog.h
21 : pub const XLOG_SMGR_CREATE: u8 = 0x10;
22 : pub const XLOG_SMGR_TRUNCATE: u8 = 0x20;
23 :
24 : pub const SMGR_TRUNCATE_HEAP: u32 = 0x0001;
25 : pub const SMGR_TRUNCATE_VM: u32 = 0x0002;
26 : pub const SMGR_TRUNCATE_FSM: u32 = 0x0004;
27 :
28 : //
29 : // From bufpage.h
30 : //
31 :
32 : // Assumes 8 byte alignment
33 : const SIZEOF_PAGE_HEADER_DATA: usize = size_of::<PageHeaderData>();
34 : pub const MAXALIGN_SIZE_OF_PAGE_HEADER_DATA: usize = (SIZEOF_PAGE_HEADER_DATA + 7) & !7;
35 :
36 : //
37 : // constants from clog.h
38 : //
39 : pub const CLOG_XACTS_PER_BYTE: u32 = 4;
40 : pub const CLOG_XACTS_PER_PAGE: u32 = BLCKSZ as u32 * CLOG_XACTS_PER_BYTE;
41 : pub const CLOG_BITS_PER_XACT: u8 = 2;
42 : pub const CLOG_XACT_BITMASK: u8 = (1 << CLOG_BITS_PER_XACT) - 1;
43 :
44 : pub const TRANSACTION_STATUS_COMMITTED: u8 = 0x01;
45 : pub const TRANSACTION_STATUS_ABORTED: u8 = 0x02;
46 : pub const TRANSACTION_STATUS_SUB_COMMITTED: u8 = 0x03;
47 :
48 : pub const CLOG_ZEROPAGE: u8 = 0x00;
49 : pub const CLOG_TRUNCATE: u8 = 0x10;
50 :
51 : //
52 : // Constants from visibilitymap.h, visibilitymapdefs.h and visibilitymap.c
53 : //
54 : pub const SIZE_OF_PAGE_HEADER: u16 = 24;
55 : pub const BITS_PER_BYTE: u16 = 8;
56 : pub const HEAPBLOCKS_PER_PAGE: u32 =
57 : (BLCKSZ - SIZE_OF_PAGE_HEADER) as u32 * 8 / BITS_PER_HEAPBLOCK as u32;
58 : pub const HEAPBLOCKS_PER_BYTE: u16 = BITS_PER_BYTE / BITS_PER_HEAPBLOCK;
59 :
60 48 : pub const fn HEAPBLK_TO_MAPBLOCK(x: u32) -> u32 {
61 48 : x / HEAPBLOCKS_PER_PAGE
62 48 : }
63 0 : pub const fn HEAPBLK_TO_MAPBYTE(x: u32) -> u32 {
64 0 : (x % HEAPBLOCKS_PER_PAGE) / HEAPBLOCKS_PER_BYTE as u32
65 0 : }
66 0 : pub const fn HEAPBLK_TO_OFFSET(x: u32) -> u32 {
67 0 : (x % HEAPBLOCKS_PER_BYTE as u32) * BITS_PER_HEAPBLOCK as u32
68 0 : }
69 :
70 : pub const BITS_PER_HEAPBLOCK: u16 = 2;
71 : pub const VISIBILITYMAP_ALL_VISIBLE: u8 = 0x01;
72 : pub const VISIBILITYMAP_ALL_FROZEN: u8 = 0x02;
73 : pub const VISIBILITYMAP_VALID_BITS: u8 = 0x03;
74 :
75 : // From xact.h
76 : pub const XLOG_XACT_COMMIT: u8 = 0x00;
77 : pub const XLOG_XACT_PREPARE: u8 = 0x10;
78 : pub const XLOG_XACT_ABORT: u8 = 0x20;
79 : pub const XLOG_XACT_COMMIT_PREPARED: u8 = 0x30;
80 : pub const XLOG_XACT_ABORT_PREPARED: u8 = 0x40;
81 :
82 : // From standbydefs.h
83 : pub const XLOG_RUNNING_XACTS: u8 = 0x10;
84 :
85 : // From srlu.h
86 : pub const SLRU_PAGES_PER_SEGMENT: u32 = 32;
87 : pub const SLRU_SEG_SIZE: usize = BLCKSZ as usize * SLRU_PAGES_PER_SEGMENT as usize;
88 :
89 : /* mask for filtering opcodes out of xl_info */
90 : pub const XLOG_XACT_OPMASK: u8 = 0x70;
91 : pub const XLOG_HEAP_OPMASK: u8 = 0x70;
92 : /* does this record have a 'xinfo' field or not */
93 : pub const XLOG_XACT_HAS_INFO: u8 = 0x80;
94 :
95 : /*
96 : * The following flags, stored in xinfo, determine which information is
97 : * contained in commit/abort records.
98 : */
99 : pub const XACT_XINFO_HAS_DBINFO: u32 = 1u32 << 0;
100 : pub const XACT_XINFO_HAS_SUBXACTS: u32 = 1u32 << 1;
101 : pub const XACT_XINFO_HAS_RELFILENODES: u32 = 1u32 << 2;
102 : pub const XACT_XINFO_HAS_INVALS: u32 = 1u32 << 3;
103 : pub const XACT_XINFO_HAS_TWOPHASE: u32 = 1u32 << 4;
104 : pub const XACT_XINFO_HAS_ORIGIN: u32 = 1u32 << 5;
105 : // pub const XACT_XINFO_HAS_AE_LOCKS: u32 = 1u32 << 6;
106 : // pub const XACT_XINFO_HAS_GID: u32 = 1u32 << 7;
107 :
108 : // From pg_control.h and rmgrlist.h
109 : pub const XLOG_NEXTOID: u8 = 0x30;
110 : pub const XLOG_SWITCH: u8 = 0x40;
111 : pub const XLOG_FPI_FOR_HINT: u8 = 0xA0;
112 : pub const XLOG_FPI: u8 = 0xB0;
113 :
114 : // From multixact.h
115 : pub const FIRST_MULTIXACT_ID: u32 = 1;
116 : pub const MAX_MULTIXACT_ID: u32 = 0xFFFFFFFF;
117 : pub const MAX_MULTIXACT_OFFSET: u32 = 0xFFFFFFFF;
118 :
119 : pub const XLOG_MULTIXACT_ZERO_OFF_PAGE: u8 = 0x00;
120 : pub const XLOG_MULTIXACT_ZERO_MEM_PAGE: u8 = 0x10;
121 : pub const XLOG_MULTIXACT_CREATE_ID: u8 = 0x20;
122 : pub const XLOG_MULTIXACT_TRUNCATE_ID: u8 = 0x30;
123 :
124 : pub const MULTIXACT_OFFSETS_PER_PAGE: u16 = BLCKSZ / 4;
125 : pub const MXACT_MEMBER_BITS_PER_XACT: u16 = 8;
126 : pub const MXACT_MEMBER_FLAGS_PER_BYTE: u16 = 1;
127 : pub const MULTIXACT_FLAGBYTES_PER_GROUP: u16 = 4;
128 : pub const MULTIXACT_MEMBERS_PER_MEMBERGROUP: u16 =
129 : MULTIXACT_FLAGBYTES_PER_GROUP * MXACT_MEMBER_FLAGS_PER_BYTE;
130 : /* size in bytes of a complete group */
131 : pub const MULTIXACT_MEMBERGROUP_SIZE: u16 =
132 : 4 * MULTIXACT_MEMBERS_PER_MEMBERGROUP + MULTIXACT_FLAGBYTES_PER_GROUP;
133 : pub const MULTIXACT_MEMBERGROUPS_PER_PAGE: u16 = BLCKSZ / MULTIXACT_MEMBERGROUP_SIZE;
134 : pub const MULTIXACT_MEMBERS_PER_PAGE: u16 =
135 : MULTIXACT_MEMBERGROUPS_PER_PAGE * MULTIXACT_MEMBERS_PER_MEMBERGROUP;
136 :
137 : // From heapam_xlog.h
138 : pub const XLOG_HEAP_INSERT: u8 = 0x00;
139 : pub const XLOG_HEAP_DELETE: u8 = 0x10;
140 : pub const XLOG_HEAP_UPDATE: u8 = 0x20;
141 : pub const XLOG_HEAP_HOT_UPDATE: u8 = 0x40;
142 : pub const XLOG_HEAP_LOCK: u8 = 0x60;
143 : pub const XLOG_HEAP_INIT_PAGE: u8 = 0x80;
144 : pub const XLOG_HEAP2_VISIBLE: u8 = 0x40;
145 : pub const XLOG_HEAP2_MULTI_INSERT: u8 = 0x50;
146 : pub const XLOG_HEAP2_LOCK_UPDATED: u8 = 0x60;
147 : pub const XLH_LOCK_ALL_FROZEN_CLEARED: u8 = 0x01;
148 : pub const XLH_INSERT_ALL_FROZEN_SET: u8 = (1 << 5) as u8;
149 : pub const XLH_INSERT_ALL_VISIBLE_CLEARED: u8 = (1 << 0) as u8;
150 : pub const XLH_UPDATE_OLD_ALL_VISIBLE_CLEARED: u8 = (1 << 0) as u8;
151 : pub const XLH_UPDATE_NEW_ALL_VISIBLE_CLEARED: u8 = (1 << 1) as u8;
152 : pub const XLH_DELETE_ALL_VISIBLE_CLEARED: u8 = (1 << 0) as u8;
153 :
154 : // From heapam_xlog.h
155 : pub const XLOG_HEAP2_REWRITE: u8 = 0x00;
156 :
157 : // From replication/message.h
158 : pub const XLOG_LOGICAL_MESSAGE: u8 = 0x00;
159 :
160 : // From rmgrlist.h
161 : pub const RM_XLOG_ID: u8 = 0;
162 : pub const RM_XACT_ID: u8 = 1;
163 : pub const RM_SMGR_ID: u8 = 2;
164 : pub const RM_CLOG_ID: u8 = 3;
165 : pub const RM_DBASE_ID: u8 = 4;
166 : pub const RM_TBLSPC_ID: u8 = 5;
167 : pub const RM_MULTIXACT_ID: u8 = 6;
168 : pub const RM_RELMAP_ID: u8 = 7;
169 : pub const RM_STANDBY_ID: u8 = 8;
170 : pub const RM_HEAP2_ID: u8 = 9;
171 : pub const RM_HEAP_ID: u8 = 10;
172 : pub const RM_REPLORIGIN_ID: u8 = 19;
173 : pub const RM_LOGICALMSG_ID: u8 = 21;
174 :
175 : // from neon_rmgr.h
176 : pub const RM_NEON_ID: u8 = 134;
177 :
178 : pub const XLOG_NEON_HEAP_INIT_PAGE: u8 = 0x80;
179 :
180 : pub const XLOG_NEON_HEAP_INSERT: u8 = 0x00;
181 : pub const XLOG_NEON_HEAP_DELETE: u8 = 0x10;
182 : pub const XLOG_NEON_HEAP_UPDATE: u8 = 0x20;
183 : pub const XLOG_NEON_HEAP_HOT_UPDATE: u8 = 0x30;
184 : pub const XLOG_NEON_HEAP_LOCK: u8 = 0x40;
185 : pub const XLOG_NEON_HEAP_MULTI_INSERT: u8 = 0x50;
186 :
187 : pub const XLOG_NEON_HEAP_VISIBLE: u8 = 0x40;
188 :
189 : // from xlogreader.h
190 : pub const XLR_INFO_MASK: u8 = 0x0F;
191 : pub const XLR_RMGR_INFO_MASK: u8 = 0xF0;
192 :
193 : pub const XLOG_TBLSPC_CREATE: u8 = 0x00;
194 : pub const XLOG_TBLSPC_DROP: u8 = 0x10;
195 :
196 : //
197 : // from xlogrecord.h
198 : //
199 : pub const XLR_MAX_BLOCK_ID: u8 = 32;
200 :
201 : pub const XLR_BLOCK_ID_DATA_SHORT: u8 = 255;
202 : pub const XLR_BLOCK_ID_DATA_LONG: u8 = 254;
203 : pub const XLR_BLOCK_ID_ORIGIN: u8 = 253;
204 : pub const XLR_BLOCK_ID_TOPLEVEL_XID: u8 = 252;
205 :
206 : pub const BKPBLOCK_FORK_MASK: u8 = 0x0F;
207 : pub const _BKPBLOCK_FLAG_MASK: u8 = 0xF0;
208 : pub const BKPBLOCK_HAS_IMAGE: u8 = 0x10; /* block data is an XLogRecordBlockImage */
209 : pub const BKPBLOCK_HAS_DATA: u8 = 0x20;
210 : pub const BKPBLOCK_WILL_INIT: u8 = 0x40; /* redo will re-init the page */
211 : pub const BKPBLOCK_SAME_REL: u8 = 0x80; /* RelFileNode omitted, same as previous */
212 :
213 : /* Information stored in bimg_info */
214 : pub const BKPIMAGE_HAS_HOLE: u8 = 0x01; /* page image has "hole" */
215 :
216 : /* From transam.h */
217 : pub const FIRST_NORMAL_TRANSACTION_ID: u32 = 3;
218 : pub const INVALID_TRANSACTION_ID: u32 = 0;
219 :
220 : /* pg_control.h */
221 : pub const XLOG_CHECKPOINT_SHUTDOWN: u8 = 0x00;
222 : pub const XLOG_CHECKPOINT_ONLINE: u8 = 0x10;
223 : pub const XLOG_PARAMETER_CHANGE: u8 = 0x60;
224 : pub const XLOG_END_OF_RECOVERY: u8 = 0x90;
225 :
226 : /* From xlog.h */
227 : pub const XLOG_REPLORIGIN_SET: u8 = 0x00;
228 : pub const XLOG_REPLORIGIN_DROP: u8 = 0x10;
229 :
230 : /* xlog_internal.h */
231 : pub const XLP_FIRST_IS_CONTRECORD: u16 = 0x0001;
232 : pub const XLP_LONG_HEADER: u16 = 0x0002;
233 :
234 : /* From replication/slot.h */
235 : pub const REPL_SLOT_ON_DISK_OFFSETOF_RESTART_LSN: usize = 4*4 /* offset of `slotdata` in ReplicationSlotOnDisk */
236 : + 64 /* NameData */ + 4*4;
237 :
238 : /* From fsm_internals.h */
239 : const FSM_NODES_PER_PAGE: usize = BLCKSZ as usize - SIZEOF_PAGE_HEADER_DATA - 4;
240 : const FSM_NON_LEAF_NODES_PER_PAGE: usize = BLCKSZ as usize / 2 - 1;
241 : const FSM_LEAF_NODES_PER_PAGE: usize = FSM_NODES_PER_PAGE - FSM_NON_LEAF_NODES_PER_PAGE;
242 : pub const SLOTS_PER_FSM_PAGE: u32 = FSM_LEAF_NODES_PER_PAGE as u32;
243 :
244 : /* From visibilitymap.c */
245 :
246 : pub const VM_MAPSIZE: usize = BLCKSZ as usize - MAXALIGN_SIZE_OF_PAGE_HEADER_DATA;
247 : pub const VM_BITS_PER_HEAPBLOCK: usize = 2;
248 : pub const VM_HEAPBLOCKS_PER_BYTE: usize = 8 / VM_BITS_PER_HEAPBLOCK;
249 : pub const VM_HEAPBLOCKS_PER_PAGE: usize = VM_MAPSIZE * VM_HEAPBLOCKS_PER_BYTE;
250 :
251 : /* From origin.c */
252 : pub const REPLICATION_STATE_MAGIC: u32 = 0x1257DADE;
253 :
254 : // Don't include postgresql.conf as it is inconvenient on node start:
255 : // we need postgresql.conf before basebackup to synchronize safekeepers
256 : // so no point in overwriting it during backup restore. Rest of the files
257 : // here are not needed before backup so it is okay to edit them after.
258 : pub const PGDATA_SPECIAL_FILES: [&str; 3] =
259 : ["pg_hba.conf", "pg_ident.conf", "postgresql.auto.conf"];
260 :
261 : pub static PG_HBA: &str = include_str!("../samples/pg_hba.conf");
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