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73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/* ----------
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* pgstat_kind.h
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*
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* Definitions related to the statistics kinds for the PostgreSQL
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* cumulative statistics system. Can be included in backend or
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* frontend code.
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*
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* Copyright (c) 2001-2026, PostgreSQL Global Development Group
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*
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* src/include/utils/pgstat_kind.h
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* ----------
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*/
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#ifndef PGSTAT_KIND_H
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#define PGSTAT_KIND_H
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/* The types of statistics entries */
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#define PgStat_Kind uint32
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/* Range of IDs allowed, for built-in and custom kinds */
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#define PGSTAT_KIND_MIN 1 /* Minimum ID allowed */
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#define PGSTAT_KIND_MAX 32 /* Maximum ID allowed */
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/* use 0 for INVALID, to catch zero-initialized data */
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#define PGSTAT_KIND_INVALID 0
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/* stats for variable-numbered objects */
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#define PGSTAT_KIND_DATABASE 1 /* database-wide statistics */
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#define PGSTAT_KIND_RELATION 2 /* per-table statistics */
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#define PGSTAT_KIND_FUNCTION 3 /* per-function statistics */
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#define PGSTAT_KIND_REPLSLOT 4 /* per-slot statistics */
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#define PGSTAT_KIND_SUBSCRIPTION 5 /* per-subscription statistics */
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#define PGSTAT_KIND_BACKEND 6 /* per-backend statistics */
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/* stats for fixed-numbered objects */
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#define PGSTAT_KIND_ARCHIVER 7
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#define PGSTAT_KIND_BGWRITER 8
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#define PGSTAT_KIND_CHECKPOINTER 9
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#define PGSTAT_KIND_IO 10
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#define PGSTAT_KIND_SLRU 11
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#define PGSTAT_KIND_WAL 12
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#define PGSTAT_KIND_BUILTIN_MIN PGSTAT_KIND_DATABASE
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#define PGSTAT_KIND_BUILTIN_MAX PGSTAT_KIND_WAL
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#define PGSTAT_KIND_BUILTIN_SIZE (PGSTAT_KIND_BUILTIN_MAX + 1)
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/* Custom stats kinds */
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/* Range of IDs allowed for custom stats kinds */
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#define PGSTAT_KIND_CUSTOM_MIN 24
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#define PGSTAT_KIND_CUSTOM_MAX PGSTAT_KIND_MAX
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#define PGSTAT_KIND_CUSTOM_SIZE (PGSTAT_KIND_CUSTOM_MAX - PGSTAT_KIND_CUSTOM_MIN + 1)
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/*
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* PgStat_Kind to use for extensions that require an ID, but are still in
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* development and have not reserved their own unique kind ID yet. See:
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* https://wiki.postgresql.org/wiki/CustomCumulativeStats
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*/
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#define PGSTAT_KIND_EXPERIMENTAL 24
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static inline bool
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pgstat_is_kind_builtin(PgStat_Kind kind)
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{
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return kind >= PGSTAT_KIND_BUILTIN_MIN && kind <= PGSTAT_KIND_BUILTIN_MAX;
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}
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static inline bool
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pgstat_is_kind_custom(PgStat_Kind kind)
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{
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return kind >= PGSTAT_KIND_CUSTOM_MIN && kind <= PGSTAT_KIND_CUSTOM_MAX;
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}
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#endif /* PGSTAT_KIND_H */
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