procps/proc/meminfo.h
Jim Warner b2c4fcfddb library: reposition those 'info' structures in headers
For some unknown reason all the 'info' structures were
declared between macros and function prototypes rather
than right after all the other structure declarations.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2021-12-16 20:50:07 +11:00

217 lines
9.9 KiB
C

/*
* meminfo.h - memory related declarations for libprocps
*
* Copyright (C) 2015 Craig Small <csmall@dropbear.xyz>
* Copyright (C) 2016-2021 Jim Warner <james.warner@comcast.net>
*
* 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_BUFFERS - MEM_CACHED_ALL - MEM_FREE
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