hide map for Character groups Quest Stations when there are no stations
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oliver
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290
www/analytics/core/Profiler.php
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290
www/analytics/core/Profiler.php
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<?php
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/**
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* Piwik - Open source web analytics
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*
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* @link http://piwik.org
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* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
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*
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*/
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namespace Piwik;
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/**
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* Class Profiler helps with measuring memory, and profiling the database.
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* To enable set in your config.ini.php
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* [Debug]
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* enable_sql_profiler = 1
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*
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* [log]
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* log_writers[] = file
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* log_level=debug
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*
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*/
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class Profiler
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{
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/**
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* Returns memory usage
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*
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* @return string
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*/
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public static function getMemoryUsage()
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{
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$memory = false;
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if (function_exists('xdebug_memory_usage')) {
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$memory = xdebug_memory_usage();
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} elseif (function_exists('memory_get_usage')) {
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$memory = memory_get_usage();
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}
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if ($memory === false) {
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return "Memory usage function not found.";
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}
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$usage = number_format(round($memory / 1024 / 1024, 2), 2);
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return "$usage Mb";
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}
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/**
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* Outputs SQL Profiling reports from Zend
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*
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* @throws \Exception
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*/
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public static function displayDbProfileReport()
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{
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$profiler = Db::get()->getProfiler();
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if (!$profiler->getEnabled()) {
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throw new \Exception("To display the profiler you should enable enable_sql_profiler on your config/config.ini.php file");
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}
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$infoIndexedByQuery = array();
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foreach ($profiler->getQueryProfiles() as $query) {
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if (isset($infoIndexedByQuery[$query->getQuery()])) {
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$existing = $infoIndexedByQuery[$query->getQuery()];
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} else {
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$existing = array('count' => 0, 'sumTimeMs' => 0);
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}
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$new = array('count' => $existing['count'] + 1,
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'sumTimeMs' => $existing['count'] + $query->getElapsedSecs() * 1000);
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$infoIndexedByQuery[$query->getQuery()] = $new;
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}
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uasort($infoIndexedByQuery, 'self::sortTimeDesc');
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$str = '<hr /><strong>SQL Profiler</strong><hr /><strong>Summary</strong><br/>';
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$totalTime = $profiler->getTotalElapsedSecs();
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$queryCount = $profiler->getTotalNumQueries();
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$longestTime = 0;
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$longestQuery = null;
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foreach ($profiler->getQueryProfiles() as $query) {
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if ($query->getElapsedSecs() > $longestTime) {
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$longestTime = $query->getElapsedSecs();
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$longestQuery = $query->getQuery();
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}
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}
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$str .= 'Executed ' . $queryCount . ' queries in ' . round($totalTime, 3) . ' seconds';
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$str .= '(Average query length: ' . round($totalTime / $queryCount, 3) . ' seconds)';
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$str .= '<br />Queries per second: ' . round($queryCount / $totalTime, 1);
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$str .= '<br />Longest query length: ' . round($longestTime, 3) . " seconds (<code>$longestQuery</code>)";
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Log::debug($str);
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self::getSqlProfilingQueryBreakdownOutput($infoIndexedByQuery);
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}
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private static function maxSumMsFirst($a, $b)
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{
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return $a['sum_time_ms'] < $b['sum_time_ms'];
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}
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static private function sortTimeDesc($a, $b)
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{
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return $a['sumTimeMs'] < $b['sumTimeMs'];
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}
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/**
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* Print profiling report for the tracker
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*
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* @param \Piwik\Db $db Tracker database object (or null)
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*/
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public static function displayDbTrackerProfile($db = null)
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{
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if (is_null($db)) {
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$db = Tracker::getDatabase();
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}
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$tableName = Common::prefixTable('log_profiling');
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$all = $db->fetchAll('SELECT * FROM ' . $tableName);
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if ($all === false) {
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return;
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}
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uasort($all, 'self::maxSumMsFirst');
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$infoIndexedByQuery = array();
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foreach ($all as $infoQuery) {
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$query = $infoQuery['query'];
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$count = $infoQuery['count'];
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$sum_time_ms = $infoQuery['sum_time_ms'];
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$infoIndexedByQuery[$query] = array('count' => $count, 'sumTimeMs' => $sum_time_ms);
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}
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self::getSqlProfilingQueryBreakdownOutput($infoIndexedByQuery);
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}
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/**
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* Print number of queries and elapsed time
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*/
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public static function printQueryCount()
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{
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$totalTime = self::getDbElapsedSecs();
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$queryCount = Profiler::getQueryCount();
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Log::debug(sprintf("Total queries = %d (total sql time = %.2fs)", $queryCount, $totalTime));
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}
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/**
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* Get total elapsed time (in seconds)
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*
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* @return int elapsed time
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*/
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public static function getDbElapsedSecs()
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{
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$profiler = Db::get()->getProfiler();
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return $profiler->getTotalElapsedSecs();
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}
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/**
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* Get total number of queries
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*
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* @return int number of queries
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*/
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public static function getQueryCount()
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{
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$profiler = Db::get()->getProfiler();
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return $profiler->getTotalNumQueries();
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}
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/**
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* Log a breakdown by query
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*
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* @param array $infoIndexedByQuery
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*/
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static private function getSqlProfilingQueryBreakdownOutput($infoIndexedByQuery)
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{
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$output = '<hr /><strong>Breakdown by query</strong><br/>';
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foreach ($infoIndexedByQuery as $query => $queryInfo) {
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$timeMs = round($queryInfo['sumTimeMs'], 1);
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$count = $queryInfo['count'];
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$avgTimeString = '';
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if ($count > 1) {
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$avgTimeMs = $timeMs / $count;
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$avgTimeString = " (average = <b>" . round($avgTimeMs, 1) . "ms</b>)";
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}
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$query = preg_replace('/([\t\n\r ]+)/', ' ', $query);
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$output .= "Executed <b>$count</b> time" . ($count == 1 ? '' : 's') . " in <b>" . $timeMs . "ms</b> $avgTimeString <pre>\t$query</pre>";
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}
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Log::debug($output);
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}
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/**
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* Initializes Profiling via XHProf.
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* See: https://github.com/piwik/piwik/blob/master/tests/README.xhprof.md
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*/
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public static function setupProfilerXHProf($mainRun = false)
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{
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if(SettingsServer::isTrackerApiRequest()) {
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// do not profile Tracker
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return;
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}
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$path = PIWIK_INCLUDE_PATH . '/tests/lib/xhprof-0.9.4/xhprof_lib/utils/xhprof_runs.php';
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if(!file_exists($path)) {
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return;
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}
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if(!function_exists('xhprof_enable')) {
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return;
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}
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if(!is_writable(ini_get("xhprof.output_dir"))) {
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throw new \Exception("The profiler output dir '" .ini_get("xhprof.output_dir"). "' should exist and be writable.");
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}
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require_once $path;
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require_once PIWIK_INCLUDE_PATH . '/tests/lib/xhprof-0.9.4/xhprof_lib/utils/xhprof_lib.php';
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if(!function_exists('xhprof_error')) {
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function xhprof_error($out) {
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echo substr($out, 0, 300) . '...';
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}
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}
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$currentGitBranch = SettingsPiwik::getCurrentGitBranch();
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$profilerNamespace = "piwik";
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if($currentGitBranch != 'master') {
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$profilerNamespace .= "." . $currentGitBranch;
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}
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xhprof_enable(XHPROF_FLAGS_CPU + XHPROF_FLAGS_MEMORY);
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if($mainRun) {
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self::setProfilingRunIds(array());
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}
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register_shutdown_function(function () use($profilerNamespace, $mainRun) {
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$xhprofData = xhprof_disable();
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$xhprofRuns = new \XHProfRuns_Default();
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$runId = $xhprofRuns->save_run($xhprofData, $profilerNamespace);
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if(empty($runId)) {
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die('could not write profiler run');
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}
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$runs = self::getProfilingRunIds();
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$runs[] = $runId;
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// $weights = array_fill(0, count($runs), 1);
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// $aggregate = xhprof_aggregate_runs($xhprofRuns, $runs, $weights, $profilerNamespace);
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// $runId = $xhprofRuns->save_run($aggregate, $profilerNamespace);
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if($mainRun) {
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$runIds = implode(',', $runs);
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$out = "\n\n";
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$baseUrl = "http://" . @$_SERVER['HTTP_HOST'] . "/" . @$_SERVER['REQUEST_URI'];
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$baseUrlStored = SettingsPiwik::getPiwikUrl();
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if(strlen($baseUrlStored) > strlen($baseUrl)) {
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$baseUrl = $baseUrlStored;
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}
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$baseUrl = "\n" . $baseUrl
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."tests/lib/xhprof-0.9.4/xhprof_html/?source=$profilerNamespace&run=";
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$out .= "Profiler report is available at:";
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$out .= $baseUrl . $runId;
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if($runId != $runIds) {
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$out .= "\n\nProfiler Report aggregating all runs triggered from this process: ";
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$out .= $baseUrl . $runIds;
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}
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$out .= "\n\n";
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echo ($out);
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} else {
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self::setProfilingRunIds($runs);
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}
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});
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}
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private static function setProfilingRunIds($ids)
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{
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file_put_contents( self::getPathToXHProfRunIds(), json_encode($ids) );
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@chmod(self::getPathToXHProfRunIds(), 0777);
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}
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private static function getProfilingRunIds()
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{
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$runIds = file_get_contents( self::getPathToXHProfRunIds() );
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$array = json_decode($runIds, $assoc = true);
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if(!is_array($array)) {
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$array = array();
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}
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return $array;
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}
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/**
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* @return string
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*/
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private static function getPathToXHProfRunIds()
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{
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return PIWIK_INCLUDE_PATH . '/tmp/cache/tests-xhprof-runs';
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}
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}
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