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src/include/port/pg_numa.h
42 строки
986 B
Bruce Momjian
Update copyright for 2026
01 янв 2026, 21:24
01 янв 2026, 21:24
451c439
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/*------------------------------------------------------------------------- * * pg_numa.h * Basic NUMA portability routines * * * Copyright (c) 2025-2026, PostgreSQL Global Development Group * * IDENTIFICATION * src/include/port/pg_numa.h * *------------------------------------------------------------------------- */ #ifndef PG_NUMA_H #define PG_NUMA_H extern PGDLLIMPORT int pg_numa_init(void); extern PGDLLIMPORT int pg_numa_query_pages(int pid, unsigned long count, void **pages, int *status); extern PGDLLIMPORT int pg_numa_get_max_node(void); #ifdef USE_LIBNUMA /* * This is required on Linux, before pg_numa_query_pages() as we * need to page-fault before move_pages(2) syscall returns valid results. */ static inline void pg_numa_touch_mem_if_required(void *ptr) { volatile uint64 touch pg_attribute_unused(); touch = *(volatile uint64 *) ptr; } #else #define pg_numa_touch_mem_if_required(ptr) \ do {} while(0) #endif #endif /* PG_NUMA_H */