initialize(); } /** * initializes the page statistics, by starting the "OVERALL" Counter */ protected function initialize() { $this->startPerformanceCounter("OVERALL",tlPerformanceCounter::TYPE_ALL); } /** * starts a new performance counter with the given title and type * * @param string $title the title of the performance counter * @param integer $type the type of the performance Counter, any combination of * tlPerformanceCounter::TYPE_ Flags */ public function startPerformanceCounter($title,$type) { $this->performanceCounters[$title] = new tlPerformanceCounter($this->db,$type); } /** * Class destructor, echoes the contents of the counter */ public function __destruct() { echo (string) $this; } /** * Magic function called by php whenever a tlPageStatistics should be used as string * * @return string returns a string representation of the counter */ public function __toString() { $output = "

"; $output .= "Performance counters: \n
"; foreach($this->performanceCounters as $title => $counter) { $output .= "{$title}\n
"; $output .= " {$counter}"; } $output .= "

"; return $output; } } /** * @package TestLink * @author Andreas Morsing * @since 1.9 - Jun, 2009 */ class tlPerformanceCounter extends tlObjectWithDB { const TYPE_MEMORY = 1; const TYPE_TIME = 2; const TYPE_SQL = 4; const TYPE_ALL = 0xFFFF; private $counterType = self::TYPE_ALL; private $memoryPeak = 0; private $memoryStart = 0; private $memoryEnd = 0; private $echoOnDestruct = false; private $initialStart = 0; private $duration = 0; private $initialQueries = 0; private $initialOverall = 0; private $sqlQueries = 0; private $sqlOverall = 0; function __construct(&$db,$type,$echoOnDestruct = false) { parent::__construct($db); $this->counterType = $type; $this->reset(); $this->echoOnDestruct = $echoOnDestruct; } public function __destruct() { if ($this->echoOnDestruct) { $this->stop(); echo $this; } } public function __toString() { $output = null; if ($this->counterType & self::TYPE_MEMORY) { $this->updateMemory(); $output .= "MEMORY: {$this->memoryStart} to {$this->memoryEnd} (max. Peak {$this->memoryPeak});\n"; } if ($this->counterType & self::TYPE_TIME) { $duration = $this->getDuration(); $output .= "DURATION: {$duration} secs;\n"; } if ($this->counterType & self::TYPE_SQL) { $this->updateSQL(); $output .= "SQL queries: ".($this->sqlQueries).";\n"; $output .= "took ".$this->sqlOverall." secs;\n"; } return $output; } public function getDuration() { $current = $this->getmicrotime(); return ($current - $this->initialStart); } public function reset() { $this->resetTimer(); $this->resetMemory(); $this->resetSQL(); } public function resetTimer() { if ($this->counterType & self::TYPE_TIME) { $this->initialStart = $this->getmicrotime(); $this->duration = 0; } } public function resetMemory() { if ($this->counterType & self::TYPE_MEMORY) { $this->memoryStart = memory_get_usage(true); $this->memoryEnd = 0; $this->memoryPeak = memory_get_peak_usage(true); } } public function resetSQL() { if ($this->counterType & self::TYPE_SQL) { $this->initialOverall = $this->db->overallDuration; $this->initialQueries = $this->db->nQuery; } } public function stop() { $this->stopTimer(); $this->updateMemory(); $this->updateSQL(); } protected function updateMemory() { if ($this->counterType & self::TYPE_MEMORY) { $this->memoryEnd = memory_get_usage(true); $this->memoryPeak = memory_get_peak_usage(true); } } protected function updateSQL() { if ($this->counterType & self::TYPE_SQL) { $this->sqlOverall = $this->db->overallDuration - $this->initialOverall; $this->sqlQueries = $this->db->nQuery - $this->initialQueries; } } public function stopTimer() { if ($this->counterType & self::TYPE_TIME) { $current = $this->getmicrotime(); $this->duration = ($current - $this->initialStart); } } protected function getmicrotime() { $t = microtime(); $t = explode(' ',$t); return (float)$t[1]+ (float)$t[0]; } } ?>