Zabbix

/*

** Zabbix

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** This program 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 General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

#include "selfmon.h"

​

#include "zbxself.h"

#include "common.h"

​

#ifndef _WINDOWS

#   include "mutexs.h"

#   include "ipc.h"

#   include "log.h"

​

#   define MAX_HISTORY  60

​

#define ZBX_SELFMON_FLUSH_DELAY     (ZBX_SELFMON_DELAY * 0.5)

​

/* process state cache, updated only by the processes themselves */

typedef struct

{

    /* the current usage statistics */

    zbx_uint64_t    counter[ZBX_PROCESS_STATE_COUNT];

​

    /* ticks of the last self monitoring update */

    clock_t     ticks;

​

    /* ticks of the last self monitoring cache flush */

    clock_t     ticks_flush;

​

    /* the current process state (see ZBX_PROCESS_STATE_* defines) */

    unsigned char   state;

}

zbx_stat_process_cache_t;

​

/* process state statistics */

typedef struct

{

    /* historical process state data */

    unsigned short          h_counter[ZBX_PROCESS_STATE_COUNT][MAX_HISTORY];

​

    /* process state data for the current data gathering cycle */

    unsigned short          counter[ZBX_PROCESS_STATE_COUNT];

​

    /* the process state that was already applied to the historical state data */

    zbx_uint64_t            counter_used[ZBX_PROCESS_STATE_COUNT];

​

    /* the process state cache */