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107 lines
2.8 KiB
107 lines
2.8 KiB
1 year ago
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/*
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** Zabbix
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** Copyright (C) 2001-2023 Zabbix SIA
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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#include "valuecache_test.h"
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void zbx_vc_set_mode(int mode)
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{
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vc_cache->mode = mode;
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vc_cache->mode_time = time(NULL);
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}
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int zbx_vc_get_cached_values(zbx_uint64_t itemid, unsigned char value_type, zbx_vector_history_record_t *values)
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{
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zbx_vc_item_t *item;
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int i;
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zbx_vc_chunk_t *chunk;
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if (NULL == (item = zbx_hashset_search(&vc_cache->items, &itemid)))
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return FAIL;
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if (NULL == item->head)
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return SUCCEED;
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for (chunk = item->tail; NULL != chunk; chunk = chunk->next)
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{
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for (i = chunk->first_value; i <= chunk->last_value; i++)
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vc_history_record_vector_append(values, value_type, &chunk->slots[i]);
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}
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return SUCCEED;
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}
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int zbx_vc_precache_values(zbx_uint64_t itemid, int value_type, int seconds, int count, const zbx_timespec_t *ts)
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{
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zbx_vc_item_t *item;
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int ret;
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zbx_vector_history_record_t values;
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/* add item to cache if necessary */
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if (NULL == (item = (zbx_vc_item_t *)zbx_hashset_search(&vc_cache->items, &itemid)))
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{
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zbx_vc_item_t new_item = {.itemid = itemid, .value_type = value_type};
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item = zbx_hashset_insert(&vc_cache->items, &new_item, sizeof(zbx_vc_item_t));
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}
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/* perform request to cache values */
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zbx_history_record_vector_create(&values);
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RDLOCK_CACHE;
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ret = vch_item_get_values(item, &values, seconds, count, ts);
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UNLOCK_CACHE;
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zbx_vc_flush_stats();
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zbx_history_record_vector_destroy(&values, value_type);
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/* reset cache statistics */
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vc_cache->hits = 0;
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vc_cache->misses = 0;
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return ret;
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}
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int zbx_vc_get_item_state(zbx_uint64_t itemid, int *status, int *active_range, int *values_total,
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int *db_cached_from)
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{
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zbx_vc_item_t *item;
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int ret = FAIL;
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if (NULL != (item = (zbx_vc_item_t *)zbx_hashset_search(&vc_cache->items, &itemid)))
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{
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*status = item->status;
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*active_range = item->active_range;
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*values_total = item->values_total;
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*db_cached_from = item->db_cached_from;
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ret = SUCCEED;
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}
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return ret;
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}
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int zbx_vc_get_cache_state(int *mode, zbx_uint64_t *hits, zbx_uint64_t *misses)
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{
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if (NULL == vc_cache)
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return FAIL;
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*mode = vc_cache->mode;
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*hits = vc_cache->hits;
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*misses = vc_cache->misses;
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return SUCCEED;
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}
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