62 lines
1.4 KiB
PHP
62 lines
1.4 KiB
PHP
<?php
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namespace W3TC;
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/**
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* Provides statistics data about requests made to mysql server
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*/
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class UsageStatistics_Source_Wpdb {
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private $query_total = 0;
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static public function init() {
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$o = new UsageStatistics_Source_Wpdb();
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add_filter( 'query', array( $o, 'query' ) );
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add_action( 'w3tc_usage_statistics_of_request', array(
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$o, 'w3tc_usage_statistics_of_request' ), 10, 1 );
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add_filter( 'w3tc_usage_statistics_metrics', array(
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$o, 'w3tc_usage_statistics_metrics' ) );
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add_filter( 'w3tc_usage_statistics_summary_from_history', array(
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$o, 'w3tc_usage_statistics_summary_from_history' ), 10, 2 );
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}
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public function w3tc_usage_statistics_metrics( $metrics ) {
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return array_merge( $metrics, array( 'wpdb_calls_total' ) );
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}
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public function w3tc_usage_statistics_summary_from_history( $summary, $history ) {
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// counters
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$wpdb_calls_total = Util_UsageStatistics::sum( $history,
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'wpdb_calls_total' );
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$summary['wpdb'] = array(
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'calls_total' => Util_UsageStatistics::integer(
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$wpdb_calls_total ),
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'calls_per_second' => Util_UsageStatistics::value_per_period_seconds(
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$wpdb_calls_total, $summary )
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);
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return $summary;
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}
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public function w3tc_usage_statistics_of_request( $storage ) {
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$storage->counter_add( 'wpdb_calls_total', $this->query_total );
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}
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public function query( $q ) {
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$this->query_total++;
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return $q;
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}
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}
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