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 "preproc_manager.h"

​

#include "daemon.h"

#include "zbxself.h"

#include "log.h"

#include "zbxlld.h"

#include "preprocessing.h"

#include "preproc_history.h"

#include "../../libs/zbxalgo/vectorimpl.h"

#include "preproc_manager.h"

​

extern ZBX_THREAD_LOCAL unsigned char   process_type;

extern unsigned char            program_type;

extern ZBX_THREAD_LOCAL int     server_num, process_num;

extern int              CONFIG_PREPROCESSOR_FORKS;

​

#define ZBX_PREPROCESSING_MANAGER_DELAY 1

​

#define ZBX_PREPROC_PRIORITY_NONE   0

#define ZBX_PREPROC_PRIORITY_FIRST  1

​

typedef enum

{

    REQUEST_STATE_QUEUED        = 0,        /* requires preprocessing */

    REQUEST_STATE_PROCESSING    = 1,        /* is being preprocessed  */

    REQUEST_STATE_DONE      = 2,        /* value is set, waiting for flush */

    REQUEST_STATE_PENDING       = 3,        /* value requires preprocessing, */

                            /* but is waiting on other request to complete */

}

zbx_preprocessing_states_t;

​

typedef enum

{

    ZBX_PREPROC_ITEM,   /* item preprocessing request */

    ZBX_PREPROC_DEPS    /* dependent item preprocessing request */

}

zbx_preprocessing_kind_t;

​

typedef struct zbx_preprocessing_request_base zbx_preprocessing_request_base_t;

​

ZBX_PTR_VECTOR_DECL(preprocessing_request_base, zbx_preprocessing_request_base_t *)

ZBX_PTR_VECTOR_IMPL(preprocessing_request_base, zbx_preprocessing_request_base_t *)

​

struct zbx_preprocessing_request_base

{

    zbx_preprocessing_kind_t        kind;

    zbx_preprocessing_states_t      state;

    zbx_preprocessing_request_base_t    *pending;   /* the request waiting on this request to complete */

    zbx_vector_preprocessing_request_base_t flush_queue;    /* processed request waiting to be flushed */

};

​

/* preprocessing request */

typedef struct preprocessing_request

{

    zbx_preprocessing_request_base_t    base;       /* common data for various requests - must be first */

                                /* field preprocessing request structure            */

    zbx_preproc_item_value_t        value;      /* unpacked item value */

    zbx_preproc_op_t            *steps;     /* preprocessing steps */

    int                 steps_num;  /* number of preprocessing steps */

    unsigned char               value_type; /* value type from configuration */

                                /* at the beginning of preprocessing queue */

}

zbx_preprocessing_request_t;

​

/* bulk dependent item preprocessing request*/

typedef struct

{

    zbx_preprocessing_request_base_t    base;       /* common data for various requests - must be first */

                                /* field preprocessing request structure            */

    zbx_uint64_t                hostid;

    zbx_uint64_t                master_itemid;

    unsigned char               value_type; /* value type for items without preproc config */