131 lines
3.5 KiB
PHP
131 lines
3.5 KiB
PHP
<?php declare(strict_types = 1);
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/**
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* Object cache collector.
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*
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* @package query-monitor
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* @extends QM_DataCollector<QM_Data_Cache>
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*/
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class QM_Collector_Cache extends QM_DataCollector {
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public $id = 'cache';
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public function get_storage(): QM_Data {
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return new QM_Data_Cache();
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}
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/**
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* @return void
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*/
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public function process() {
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global $wp_object_cache;
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$this->data->has_object_cache = (bool) wp_using_ext_object_cache();
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$this->data->cache_hit_percentage = 0;
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if ( is_object( $wp_object_cache ) ) {
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$object_vars = get_object_vars( $wp_object_cache );
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if ( array_key_exists( 'cache_hits', $object_vars ) ) {
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$this->data->stats['cache_hits'] = (int) $object_vars['cache_hits'];
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}
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if ( array_key_exists( 'cache_misses', $object_vars ) ) {
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$this->data->stats['cache_misses'] = (int) $object_vars['cache_misses'];
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}
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$stats = array();
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if ( method_exists( $wp_object_cache, 'getStats' ) ) {
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$stats = $wp_object_cache->getStats();
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} elseif ( array_key_exists( 'stats', $object_vars ) && is_array( $object_vars['stats'] ) ) {
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$stats = $object_vars['stats'];
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} elseif ( function_exists( 'wp_cache_get_stats' ) ) {
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$stats = wp_cache_get_stats();
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}
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if ( ! empty( $stats ) ) {
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if ( is_array( $stats ) && ! isset( $stats['get_hits'] ) && 1 === count( $stats ) ) {
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$first_server = reset( $stats );
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if ( isset( $first_server['get_hits'] ) ) {
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$stats = $first_server;
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}
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}
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foreach ( $stats as $key => $value ) {
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if ( ! is_scalar( $value ) ) {
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continue;
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}
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if ( ! is_string( $key ) ) {
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continue;
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}
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$this->data->stats[ $key ] = $value;
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}
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}
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if ( ! isset( $this->data->stats['cache_hits'] ) ) {
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if ( isset( $this->data->stats['get_hits'] ) ) {
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$this->data->stats['cache_hits'] = (int) $this->data->stats['get_hits'];
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}
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}
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if ( ! isset( $this->data->stats['cache_misses'] ) ) {
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if ( isset( $this->data->stats['get_misses'] ) ) {
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$this->data->stats['cache_misses'] = (int) $this->data->stats['get_misses'];
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}
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}
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}
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if ( ! empty( $this->data->stats['cache_hits'] ) ) {
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$total = $this->data->stats['cache_hits'];
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if ( ! empty( $this->data->stats['cache_misses'] ) ) {
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$total += $this->data->stats['cache_misses'];
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}
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$this->data->cache_hit_percentage = ( 100 / $total ) * $this->data->stats['cache_hits'];
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}
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$this->data->display_hit_rate_warning = ( 100 === $this->data->cache_hit_percentage );
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if ( function_exists( 'extension_loaded' ) ) {
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$this->data->object_cache_extensions = array_map( 'extension_loaded', array(
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'Afterburner' => 'afterburner',
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'APCu' => 'apcu',
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'Redis' => 'redis',
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'Relay' => 'relay',
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'Memcache' => 'memcache',
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'Memcached' => 'memcached',
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) );
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$this->data->opcode_cache_extensions = array_map( 'extension_loaded', array(
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'APC' => 'APC',
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'Zend OPcache' => 'Zend OPcache',
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) );
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} else {
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$this->data->object_cache_extensions = array();
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$this->data->opcode_cache_extensions = array();
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}
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$this->data->has_opcode_cache = array_filter( $this->data->opcode_cache_extensions ) ? true : false;
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}
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}
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/**
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* @param array<string, QM_Collector> $collectors
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* @param QueryMonitor $qm
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* @return array<string, QM_Collector>
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*/
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function register_qm_collector_cache( array $collectors, QueryMonitor $qm ) {
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$collectors['cache'] = new QM_Collector_Cache();
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return $collectors;
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}
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add_filter( 'qm/collectors', 'register_qm_collector_cache', 20, 2 );
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