Zabbix

/*

** Zabbix

** Copyright (C) 2001-2022 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 "active.h"

​

#include "zbxconf.h"

#include "log.h"

#include "sysinfo.h"

#include "logfiles/logfiles.h"

#include "zbxcommshigh.h"

#include "threads.h"

#include "zbxjson.h"

#include "alias.h"

#include "zbxregexp.h"

​

extern unsigned char            program_type;

extern ZBX_THREAD_LOCAL unsigned char   process_type;

extern ZBX_THREAD_LOCAL int     server_num, process_num;

extern ZBX_THREAD_LOCAL char        *CONFIG_HOSTNAME;

​

#if defined(ZABBIX_SERVICE)

#   include "service.h"

#elif defined(ZABBIX_DAEMON)

#   include "daemon.h"

#endif

​

#include "zbxcrypto.h"

​

static ZBX_THREAD_LOCAL ZBX_ACTIVE_BUFFER   buffer;

static ZBX_THREAD_LOCAL zbx_vector_ptr_t    active_metrics;

static ZBX_THREAD_LOCAL zbx_vector_ptr_t    regexps;

static ZBX_THREAD_LOCAL char            *session_token;

static ZBX_THREAD_LOCAL zbx_uint64_t        last_valueid = 0;

static ZBX_THREAD_LOCAL zbx_vector_pre_persistent_t pre_persistent_vec; /* used for staging of data going */

                                        /* into persistent files */

/* used for deleting inactive persistent files */

static ZBX_THREAD_LOCAL zbx_vector_persistent_inactive_t    persistent_inactive_vec;

​

#ifndef _WINDOWS

static volatile sig_atomic_t    need_update_userparam;

#endif

​

static void init_active_metrics(void)

{

    size_t  sz;

​

    zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __func__);

​

    if (NULL == buffer.data)

    {

        zabbix_log(LOG_LEVEL_DEBUG, "buffer: first allocation for %d elements", CONFIG_BUFFER_SIZE);

        sz = (size_t)CONFIG_BUFFER_SIZE * sizeof(ZBX_ACTIVE_BUFFER_ELEMENT);

        buffer.data = (ZBX_ACTIVE_BUFFER_ELEMENT *)zbx_malloc(buffer.data, sz);

        memset(buffer.data, 0, sz);

        buffer.count = 0;

        buffer.pcount = 0;

        buffer.lastsent = (int)time(NULL);

        buffer.first_error = 0;

    }

​

    zbx_vector_ptr_create(&active_metrics);

    zbx_vector_ptr_create(&regexps);

    zbx_vector_pre_persistent_create(&pre_persistent_vec);

    zbx_vector_persistent_inactive_create(&persistent_inactive_vec);

​

    zabbix_log(LOG_LEVEL_DEBUG, "End of %s()", __func__);

}

​

static void free_active_metric(ZBX_ACTIVE_METRIC *metric)

{

    int i;

​

    zbx_free(metric->key);

    zbx_free(metric->key_orig);

​