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/*
** Zabbix
** Copyright (C) 2001-2014 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 "common.h"
#include "db.h"
#include "log.h"
#include "actions.h"
#include "events.h"
static DB_EVENT *events = NULL;
static size_t events_alloc = 0, events_num = 0;
/******************************************************************************
* *
* Function: add_event *
* *
* Purpose: add event to an array *
* *
* Parameters: eventid - [IN] event identificator from database *
* source - [IN] event source (EVENT_SOURCE_*) *
* object - [IN] event object (EVENT_OBJECT_*) *
* objectid - [IN] trigger, item ... identificator from database, *
* depends on source and object *
* timespec - [IN] event time *
* value - [IN] event value (TRIGGER_VALUE_*, *
* TRIGGER_STATE_*, ITEM_STATE_* ... depends on *
* source and object) *
* trigger_description - [IN] trigger description *
* trigger_expression - [IN] trigger short expression *
* trigger_priority - [IN] trigger priority *
* trigger_type - [IN] trigger type (TRIGGER_TYPE_*) *
* *
******************************************************************************/
void add_event(zbx_uint64_t eventid, unsigned char source, unsigned char object, zbx_uint64_t objectid,
const zbx_timespec_t *timespec, int value, const char *trigger_description,
const char *trigger_expression, unsigned char trigger_priority, unsigned char trigger_type)
{
if (events_num == events_alloc)
{
events_alloc += 64;
events = zbx_realloc(events, sizeof(DB_EVENT) * events_alloc);
}
events[events_num].eventid = eventid;
events[events_num].source = source;
events[events_num].object = object;
events[events_num].objectid = objectid;
events[events_num].clock = timespec->sec;
events[events_num].ns = timespec->ns;
events[events_num].value = value;
events[events_num].acknowledged = EVENT_NOT_ACKNOWLEDGED;
if (EVENT_SOURCE_TRIGGERS == source)
{
events[events_num].trigger.triggerid = objectid;
events[events_num].trigger.description = zbx_strdup(NULL, trigger_description);
events[events_num].trigger.expression = zbx_strdup(NULL, trigger_expression);
events[events_num].trigger.priority = trigger_priority;
events[events_num].trigger.type = trigger_type;
}
events_num++;
}
/******************************************************************************
* *
* Function: save_events *
* *
* Purpose: flushes the events into a database *
* *
******************************************************************************/
static void save_events()
{
size_t i;
zbx_db_insert_t db_insert;
int new_events = 0;
zbx_uint64_t eventid;
zbx_db_insert_prepare(&db_insert, "events", "eventid", "source", "object", "objectid", "clock", "ns", "value",
NULL);
for (i = 0; i < events_num; i++)
{
if (0 == events[i].eventid)
new_events++;
}
eventid = DBget_maxid_num("events", new_events);
for (i = 0; i < events_num; i++)
{
if (0 == events[i].eventid)
events[i].eventid = eventid++;
zbx_db_insert_add_values(&db_insert, events[i].eventid, events[i].source, events[i].object,
events[i].objectid, events[i].clock, events[i].ns, events[i].value);
}
zbx_db_insert_execute(&db_insert);
zbx_db_insert_clean(&db_insert);
}
/******************************************************************************
* *
* Function: clean_events *
* *
* Purpose: cleans all array entries and resets events_num *
* *
******************************************************************************/
static void clean_events()
{
size_t i;
for (i = 0; i < events_num; i++)
{
if (EVENT_SOURCE_TRIGGERS != events[i].source)
continue;
zbx_free(events[i].trigger.description);
zbx_free(events[i].trigger.expression);
}
events_num = 0;
}
int process_events(void)
{
const char *__function_name = "process_events";
int ret = (int)events_num;
zabbix_log(LOG_LEVEL_DEBUG, "In %s() events_num:" ZBX_FS_SIZE_T, __function_name, (zbx_fs_size_t)events_num);
if (0 != events_num)
{
save_events();
process_actions(events, events_num);
DBupdate_itservices(events, events_num);
clean_events();
}
zabbix_log(LOG_LEVEL_DEBUG, "End of %s()", __function_name);
return ret; /* performance metric */
}
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