63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/*
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* rmgr.h
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*
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* Resource managers definition
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*
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* src/include/access/rmgr.h
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*/
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#ifndef RMGR_H
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#define RMGR_H
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typedef uint8 RmgrId;
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/*
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* Built-in resource managers
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*
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* The actual numerical values for each rmgr ID are defined by the order
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* of entries in rmgrlist.h.
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*
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* Note: RM_MAX_ID must fit in RmgrId; widening that type will affect the XLOG
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* file format.
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*/
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#define PG_RMGR(symname,name,redo,desc,identify,startup,cleanup,mask,decode) \
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symname,
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typedef enum RmgrIds
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{
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#include "access/rmgrlist.h"
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RM_NEXT_ID
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} RmgrIds;
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#undef PG_RMGR
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#define RM_MAX_ID UINT8_MAX
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#define RM_MAX_BUILTIN_ID (RM_NEXT_ID - 1)
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#define RM_MIN_CUSTOM_ID 128
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#define RM_MAX_CUSTOM_ID UINT8_MAX
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#define RM_N_IDS (UINT8_MAX + 1)
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#define RM_N_BUILTIN_IDS (RM_MAX_BUILTIN_ID + 1)
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#define RM_N_CUSTOM_IDS (RM_MAX_CUSTOM_ID - RM_MIN_CUSTOM_ID + 1)
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static inline bool
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RmgrIdIsBuiltin(int rmid)
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{
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return rmid <= RM_MAX_BUILTIN_ID;
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}
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static inline bool
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RmgrIdIsCustom(int rmid)
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{
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return rmid >= RM_MIN_CUSTOM_ID && rmid <= RM_MAX_CUSTOM_ID;
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}
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#define RmgrIdIsValid(rmid) (RmgrIdIsBuiltin((rmid)) || RmgrIdIsCustom((rmid)))
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/*
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* RmgrId to use for extensions that require an RmgrId, but are still in
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* development and have not reserved their own unique RmgrId yet. See:
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* https://wiki.postgresql.org/wiki/CustomWALResourceManagers
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*/
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#define RM_EXPERIMENTAL_ID 128
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#endif /* RMGR_H */
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