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/*
* stat.h - cpu/numa related declarations for libprocps
*
* Copyright © 2015-2023 Jim Warner <james.warner@comcast.net>
* Copyright © 2015-2023 Craig Small <csmall@dropbear.xyz>
*
* 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_STAT_H
#define PROCPS_STAT_H
#ifdef __cplusplus
extern "C" {
#endif
enum stat_item {
STAT_noop, // ( never altered )
STAT_extra, // ( reset to zero )
// returns origin, see proc(5)
// ------- -------------------
STAT_TIC_ID, // s_int /proc/stat, cpu or numa node id
STAT_TIC_ID_CORE, // s_int /proc/cpuinfo: 'core id', -1 = n/a
STAT_TIC_NUMA_NODE, // s_int [ CPU ID based, see: numa(3) ]
STAT_TIC_NUM_CONTRIBUTORS, // s_int [ total CPUs contributing to TIC counts ]
STAT_TIC_TYPE_CORE, // s_int [ 2 = P-core, 1 = E-core, 0 = n/a ]
STAT_TIC_USER, // ull_int /proc/stat
STAT_TIC_NICE, // ull_int "
STAT_TIC_SYSTEM, // ull_int "
STAT_TIC_IDLE, // ull_int "
STAT_TIC_IOWAIT, // ull_int "
STAT_TIC_IRQ, // ull_int "
STAT_TIC_SOFTIRQ, // ull_int "
STAT_TIC_STOLEN, // ull_int "
STAT_TIC_GUEST, // ull_int "
STAT_TIC_GUEST_NICE, // ull_int "
STAT_TIC_DELTA_USER, // sl_int derived from above
STAT_TIC_DELTA_NICE, // sl_int "
STAT_TIC_DELTA_SYSTEM, // sl_int "
STAT_TIC_DELTA_IDLE, // sl_int "
STAT_TIC_DELTA_IOWAIT, // sl_int "
STAT_TIC_DELTA_IRQ, // sl_int "
STAT_TIC_DELTA_SOFTIRQ, // sl_int "
STAT_TIC_DELTA_STOLEN, // sl_int "
STAT_TIC_DELTA_GUEST, // sl_int "
STAT_TIC_DELTA_GUEST_NICE, // sl_int "
STAT_TIC_SUM_USER, // ull_int derived from USER + NICE tics
STAT_TIC_SUM_SYSTEM, // ull_int derived from SYSTEM + IRQ + SOFTIRQ tics
STAT_TIC_SUM_IDLE, // ull_int derived from IDLE + IOWAIT tics
STAT_TIC_SUM_BUSY, // ull_int derived from SUM_TOTAL - SUM_IDLE tics
STAT_TIC_SUM_TOTAL, // ull_int derived from sum of all 10 tics
STAT_TIC_SUM_DELTA_USER, // sl_int derived from above
STAT_TIC_SUM_DELTA_SYSTEM, // sl_int "
STAT_TIC_SUM_DELTA_IDLE, // sl_int "
STAT_TIC_SUM_DELTA_BUSY, // sl_int "
STAT_TIC_SUM_DELTA_TOTAL, // sl_int "
STAT_SYS_CTX_SWITCHES, // ul_int /proc/stat
STAT_SYS_INTERRUPTS, // ul_int "
STAT_SYS_PROC_BLOCKED, // ul_int "
STAT_SYS_PROC_CREATED, // ul_int "
STAT_SYS_PROC_RUNNING, // ul_int "
STAT_SYS_TIME_OF_BOOT, // ul_int "
STAT_SYS_DELTA_CTX_SWITCHES, // s_int derived from above
STAT_SYS_DELTA_INTERRUPTS, // s_int "
STAT_SYS_DELTA_PROC_BLOCKED, // s_int "
STAT_SYS_DELTA_PROC_CREATED, // s_int "
STAT_SYS_DELTA_PROC_RUNNING // s_int "
};
enum stat_reap_type {
STAT_REAP_CPUS_ONLY,
STAT_REAP_NUMA_NODES_TOO
};
enum stat_sort_order {
STAT_SORT_ASCEND = +1,
STAT_SORT_DESCEND = -1
};
struct stat_result {
enum stat_item item;
union {
signed int s_int;
signed long sl_int;
unsigned long ul_int;
unsigned long long ull_int;
} result;
};
struct stat_stack {
struct stat_result *head;
};
struct stat_reap {
int total;
struct stat_stack **stacks;
};
struct stat_reaped {
struct stat_stack *summary;
struct stat_reap *cpus;
struct stat_reap *numa;
};
struct stat_info;
// STAT_TIC_ID value for /proc/stat cpu summary
#define STAT_SUMMARY_ID -11111
// STAT_TIC_NUMA_NODE value for STAT_REAP_CPUS_ONLY or
// for STAT_REAP_NUMA_NODES_TOO when node was inactive
#define STAT_NODE_INVALID -22222
#define STAT_GET( info, actual_enum, type ) ( { \
struct stat_result *r = procps_stat_get( info, actual_enum ); \
r ? r->result . type : 0; } )
#define STAT_VAL( relative_enum, type, stack, info ) \
stack -> head [ relative_enum ] . result . type
int procps_stat_new (struct stat_info **info);
int procps_stat_ref (struct stat_info *info);
int procps_stat_unref (struct stat_info **info);
struct stat_result *procps_stat_get (
struct stat_info *info,
enum stat_item item);
struct stat_reaped *procps_stat_reap (
struct stat_info *info,
enum stat_reap_type what,
enum stat_item *items,
int numitems);
struct stat_stack *procps_stat_select (
struct stat_info *info,
enum stat_item *items,
int numitems);
struct stat_stack **procps_stat_sort (
struct stat_info *info,
struct stat_stack *stacks[],
int numstacked,
enum stat_item sortitem,
enum stat_sort_order order);
#ifdef XTRA_PROCPS_DEBUG
# include "xtra-procps-debug.h"
#endif
#ifdef __cplusplus
}
#endif
#endif
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