PostgreSQL Source Code: src/include/access/rmgr.h Source File

PostgreSQL Source Code git master
rmgr.h
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1/*
2 * rmgr.h
3 *
4 * Resource managers definition
5 *
6 * src/include/access/rmgr.h
7 */
8#ifndef RMGR_H
9#define RMGR_H
10
11 typedef uint8 RmgrId;
12
13/*
14 * Built-in resource managers
15 *
16 * The actual numerical values for each rmgr ID are defined by the order
17 * of entries in rmgrlist.h.
18 *
19 * Note: RM_MAX_ID must fit in RmgrId; widening that type will affect the XLOG
20 * file format.
21 */
22 #define PG_RMGR(symname,name,redo,desc,identify,startup,cleanup,mask,decode) \
23 symname,
24
25 typedef enum RmgrIds
26{
27#include "access/rmgrlist.h"
28 RM_NEXT_ID
29 } RmgrIds;
30
31#undef PG_RMGR
32
33 #define RM_MAX_ID UINT8_MAX
34 #define RM_MAX_BUILTIN_ID (RM_NEXT_ID - 1)
35 #define RM_MIN_CUSTOM_ID 128
36 #define RM_MAX_CUSTOM_ID UINT8_MAX
37 #define RM_N_IDS (UINT8_MAX + 1)
38 #define RM_N_BUILTIN_IDS (RM_MAX_BUILTIN_ID + 1)
39 #define RM_N_CUSTOM_IDS (RM_MAX_CUSTOM_ID - RM_MIN_CUSTOM_ID + 1)
40
41static inline bool
42 RmgrIdIsBuiltin(int rmid)
43{
44 return rmid <= RM_MAX_BUILTIN_ID;
45}
46
47static inline bool
48 RmgrIdIsCustom(int rmid)
49{
50 return rmid >= RM_MIN_CUSTOM_ID && rmid <= RM_MAX_CUSTOM_ID;
51}
52
53 #define RmgrIdIsValid(rmid) (RmgrIdIsBuiltin((rmid)) || RmgrIdIsCustom((rmid)))
54
55/*
56 * RmgrId to use for extensions that require an RmgrId, but are still in
57 * development and have not reserved their own unique RmgrId yet. See:
58 * https://wiki.postgresql.org/wiki/CustomWALResourceManagers
59 */
60 #define RM_EXPERIMENTAL_ID 128
61
62#endif /* RMGR_H */
uint8_t uint8
Definition: c.h:536
#define RM_MAX_BUILTIN_ID
Definition: rmgr.h:34
static bool RmgrIdIsCustom(int rmid)
Definition: rmgr.h:48
#define RM_MAX_CUSTOM_ID
Definition: rmgr.h:36
RmgrIds
Definition: rmgr.h:26
@ RM_NEXT_ID
Definition: rmgr.h:28
uint8 RmgrId
Definition: rmgr.h:11
static bool RmgrIdIsBuiltin(int rmid)
Definition: rmgr.h:42
#define RM_MIN_CUSTOM_ID
Definition: rmgr.h:35

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