/*
* rmgr . h
*
* Resource managers definition
*
* src / include / access / rmgr . h
*/
#ifndef RMGR_H
#define RMGR_H
typedef uint8 RmgrId;
/*
* Built - in resource managers
*
* The actual numerical values for each rmgr ID are defined by the order
* of entries in rmgrlist . h .
*
* Note : RM_MAX_ID must fit in RmgrId ; widening that type will affect the XLOG
* file format .
*/
#define PG_RMGR(symname,name,redo,desc,identify,startup,cleanup,mask,decode) \
symname,
typedef enum RmgrIds
{
#include "access/rmgrlist.h"
RM_NEXT_ID
} RmgrIds;
#undef PG_RMGR
#define RM_MAX_ID UINT8_MAX
#define RM_MAX_BUILTIN_ID (RM_NEXT_ID - 1 )
#define RM_MIN_CUSTOM_ID 128
#define RM_MAX_CUSTOM_ID UINT8_MAX
#define RM_N_IDS (UINT8_MAX + 1 )
#define RM_N_BUILTIN_IDS (RM_MAX_BUILTIN_ID + 1 )
#define RM_N_CUSTOM_IDS (RM_MAX_CUSTOM_ID - RM_MIN_CUSTOM_ID + 1 )
static inline bool
RmgrIdIsBuiltin(int rmid)
{
return rmid <= RM_MAX_BUILTIN_ID;
}
static inline bool
RmgrIdIsCustom(int rmid)
{
return rmid >= RM_MIN_CUSTOM_ID && rmid <= RM_MAX_CUSTOM_ID;
}
#define RmgrIdIsValid(rmid) (RmgrIdIsBuiltin((rmid)) || RmgrIdIsCustom((rmid)))
/*
* RmgrId to use for extensions that require an RmgrId , but are still in
* development and have not reserved their own unique RmgrId yet . See :
* https : //wiki.postgresql.org/wiki/CustomWALResourceManagers
*/
#define RM_EXPERIMENTAL_ID 128
#endif /* RMGR_H */
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(vorverarbeitet am 2026-08-05)
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