/* * meminfo.h - memory related declarations for libproc2 * * Copyright © 2015-2023 Jim Warner * Copyright © 2015-2023 Craig Small * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef PROCPS_MEMINFO_H #define PROCPS_MEMINFO_H #ifdef __cplusplus extern "C" { #endif enum meminfo_item { MEMINFO_noop, // ( never altered ) MEMINFO_extra, // ( reset to zero ) /* note: all of the following values are expressed as KiB */ // returns origin, see proc(5) // ------- ------------------- MEMINFO_MEM_ACTIVE, // ul_int /proc/meminfo MEMINFO_MEM_ACTIVE_ANON, // ul_int " MEMINFO_MEM_ACTIVE_FILE, // ul_int " MEMINFO_MEM_ANON, // ul_int " MEMINFO_MEM_AVAILABLE, // ul_int " MEMINFO_MEM_BOUNCE, // ul_int " MEMINFO_MEM_BUFFERS, // ul_int " MEMINFO_MEM_CACHED, // ul_int " MEMINFO_MEM_CACHED_ALL, // ul_int derived from MEM_CACHED + MEM_SLAB_RECLAIM MEMINFO_MEM_CMA_FREE, // ul_int /proc/meminfo MEMINFO_MEM_CMA_TOTAL, // ul_int " MEMINFO_MEM_COMMITTED_AS, // ul_int " MEMINFO_MEM_COMMIT_LIMIT, // ul_int " MEMINFO_MEM_DIRECTMAP_1G, // ul_int " MEMINFO_MEM_DIRECTMAP_2M, // ul_int " MEMINFO_MEM_DIRECTMAP_4K, // ul_int " MEMINFO_MEM_DIRECTMAP_4M, // ul_int " MEMINFO_MEM_DIRTY, // ul_int " MEMINFO_MEM_FILE_HUGEPAGES, // ul_int " MEMINFO_MEM_FILE_PMDMAPPED, // ul_int " MEMINFO_MEM_FREE, // ul_int " MEMINFO_MEM_HARD_CORRUPTED, // ul_int " MEMINFO_MEM_HIGH_FREE, // ul_int " MEMINFO_MEM_HIGH_TOTAL, // ul_int " MEMINFO_MEM_HIGH_USED, // ul_int derived from MEM_HIGH_TOTAL - MEM_HIGH_FREE MEMINFO_MEM_HUGETBL, // ul_int /proc/meminfo MEMINFO_MEM_HUGE_ANON, // ul_int " MEMINFO_MEM_HUGE_FREE, // ul_int " MEMINFO_MEM_HUGE_RSVD, // ul_int " MEMINFO_MEM_HUGE_SIZE, // ul_int " MEMINFO_MEM_HUGE_SURPLUS, // ul_int " MEMINFO_MEM_HUGE_TOTAL, // ul_int " MEMINFO_MEM_INACTIVE, // ul_int " MEMINFO_MEM_INACTIVE_ANON, // ul_int " MEMINFO_MEM_INACTIVE_FILE, // ul_int " MEMINFO_MEM_KERNEL_RECLAIM, // ul_int " MEMINFO_MEM_KERNEL_STACK, // ul_int " MEMINFO_MEM_LOCKED, // ul_int " MEMINFO_MEM_LOW_FREE, // ul_int " MEMINFO_MEM_LOW_TOTAL, // ul_int " MEMINFO_MEM_LOW_USED, // ul_int derived from MEM_LOW_TOTAL - MEM_LOW_FREE MEMINFO_MEM_MAPPED, // ul_int /proc/meminfo MEMINFO_MEM_MAP_COPY, // ul_int " MEMINFO_MEM_NFS_UNSTABLE, // ul_int " MEMINFO_MEM_PAGE_TABLES, // ul_int " MEMINFO_MEM_PER_CPU, // ul_int " MEMINFO_MEM_SHADOWCALLSTACK, // ul_int " MEMINFO_MEM_SHARED, // ul_int " MEMINFO_MEM_SHMEM_HUGE, // ul_int " MEMINFO_MEM_SHMEM_HUGE_MAP, // ul_int " MEMINFO_MEM_SLAB, // ul_int " MEMINFO_MEM_SLAB_RECLAIM, // ul_int " MEMINFO_MEM_SLAB_UNRECLAIM, // ul_int " MEMINFO_MEM_TOTAL, // ul_int " MEMINFO_MEM_UNEVICTABLE, // ul_int " MEMINFO_MEM_USED, // ul_int derived from MEM_TOTAL - MEM_AVAILABLE MEMINFO_MEM_VM_ALLOC_CHUNK, // ul_int /proc/meminfo MEMINFO_MEM_VM_ALLOC_TOTAL, // ul_int " MEMINFO_MEM_VM_ALLOC_USED, // ul_int " MEMINFO_MEM_WRITEBACK, // ul_int " MEMINFO_MEM_WRITEBACK_TMP, // ul_int " MEMINFO_DELTA_ACTIVE, // s_int derived from above MEMINFO_DELTA_ACTIVE_ANON, // s_int " MEMINFO_DELTA_ACTIVE_FILE, // s_int " MEMINFO_DELTA_ANON, // s_int " MEMINFO_DELTA_AVAILABLE, // s_int " MEMINFO_DELTA_BOUNCE, // s_int " MEMINFO_DELTA_BUFFERS, // s_int " MEMINFO_DELTA_CACHED, // s_int " MEMINFO_DELTA_CACHED_ALL, // s_int " MEMINFO_DELTA_CMA_FREE, // s_int " MEMINFO_DELTA_CMA_TOTAL, // s_int " MEMINFO_DELTA_COMMITTED_AS, // s_int " MEMINFO_DELTA_COMMIT_LIMIT, // s_int " MEMINFO_DELTA_DIRECTMAP_1G, // s_int " MEMINFO_DELTA_DIRECTMAP_2M, // s_int " MEMINFO_DELTA_DIRECTMAP_4K, // s_int " MEMINFO_DELTA_DIRECTMAP_4M, // s_int " MEMINFO_DELTA_DIRTY, // s_int " MEMINFO_DELTA_FILE_HUGEPAGES, // s_int " MEMINFO_DELTA_FILE_PMDMAPPED, // s_int " MEMINFO_DELTA_FREE, // s_int " MEMINFO_DELTA_HARD_CORRUPTED, // s_int " MEMINFO_DELTA_HIGH_FREE, // s_int " MEMINFO_DELTA_HIGH_TOTAL, // s_int " MEMINFO_DELTA_HIGH_USED, // s_int " MEMINFO_DELTA_HUGETBL, // s_int " MEMINFO_DELTA_HUGE_ANON, // s_int " MEMINFO_DELTA_HUGE_FREE, // s_int " MEMINFO_DELTA_HUGE_RSVD, // s_int " MEMINFO_DELTA_HUGE_SIZE, // s_int " MEMINFO_DELTA_HUGE_SURPLUS, // s_int " MEMINFO_DELTA_HUGE_TOTAL, // s_int " MEMINFO_DELTA_INACTIVE, // s_int " MEMINFO_DELTA_INACTIVE_ANON, // s_int " MEMINFO_DELTA_INACTIVE_FILE, // s_int " MEMINFO_DELTA_KERNEL_RECLAIM, // s_int " MEMINFO_DELTA_KERNEL_STACK, // s_int " MEMINFO_DELTA_LOCKED, // s_int " MEMINFO_DELTA_LOW_FREE, // s_int " MEMINFO_DELTA_LOW_TOTAL, // s_int " MEMINFO_DELTA_LOW_USED, // s_int " MEMINFO_DELTA_MAPPED, // s_int " MEMINFO_DELTA_MAP_COPY, // s_int " MEMINFO_DELTA_NFS_UNSTABLE, // s_int " MEMINFO_DELTA_PAGE_TABLES, // s_int " MEMINFO_DELTA_PER_CPU, // s_int " MEMINFO_DELTA_SHADOWCALLSTACK, // s_int " MEMINFO_DELTA_SHARED, // s_int " MEMINFO_DELTA_SHMEM_HUGE, // s_int " MEMINFO_DELTA_SHMEM_HUGE_MAP, // s_int " MEMINFO_DELTA_SLAB, // s_int " MEMINFO_DELTA_SLAB_RECLAIM, // s_int " MEMINFO_DELTA_SLAB_UNRECLAIM, // s_int " MEMINFO_DELTA_TOTAL, // s_int " MEMINFO_DELTA_UNEVICTABLE, // s_int " MEMINFO_DELTA_USED, // s_int " MEMINFO_DELTA_VM_ALLOC_CHUNK, // s_int " MEMINFO_DELTA_VM_ALLOC_TOTAL, // s_int " MEMINFO_DELTA_VM_ALLOC_USED, // s_int " MEMINFO_DELTA_WRITEBACK, // s_int " MEMINFO_DELTA_WRITEBACK_TMP, // s_int " MEMINFO_SWAP_CACHED, // ul_int /proc/meminfo MEMINFO_SWAP_FREE, // ul_int " MEMINFO_SWAP_TOTAL, // ul_int " MEMINFO_SWAP_USED, // ul_int derived from SWAP_TOTAL - SWAP_FREE MEMINFO_SWAP_DELTA_CACHED, // s_int derived from above MEMINFO_SWAP_DELTA_FREE, // s_int " MEMINFO_SWAP_DELTA_TOTAL, // s_int " MEMINFO_SWAP_DELTA_USED // s_int " }; struct meminfo_result { enum meminfo_item item; union { signed int s_int; unsigned long ul_int; } result; }; struct meminfo_stack { struct meminfo_result *head; }; struct meminfo_info; #define MEMINFO_GET( info, actual_enum, type ) ( { \ struct meminfo_result *r = procps_meminfo_get( info, actual_enum ); \ r ? r->result . type : 0; } ) #define MEMINFO_VAL( relative_enum, type, stack, info ) \ stack -> head [ relative_enum ] . result . type int procps_meminfo_new (struct meminfo_info **info); int procps_meminfo_ref (struct meminfo_info *info); int procps_meminfo_unref (struct meminfo_info **info); struct meminfo_result *procps_meminfo_get ( struct meminfo_info *info, enum meminfo_item item); struct meminfo_stack *procps_meminfo_select ( struct meminfo_info *info, enum meminfo_item *items, int numitems); #ifdef XTRA_PROCPS_DEBUG # include "xtra-procps-debug.h" #endif #ifdef __cplusplus } #endif #endif