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/*
* 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)
#define RMID_IS_BUILTIN(rmid) ((rmid) <= RM_MAX_BUILTIN_ID)
#define RMID_IS_CUSTOM(rmid) ((rmid) >= RM_MIN_CUSTOM_ID && \
(rmid) <= RM_MAX_CUSTOM_ID)
#define RMID_IS_VALID(rmid) (RMID_IS_BUILTIN((rmid)) || RMID_IS_CUSTOM((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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