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<?php
/**
* @file
* @ingroup Profiler
*/
if ( !class_exists( 'Profiler' ) ) {
require_once(dirname(__FILE__).'/Profiler.php');
}
/**
* Simple profiler base class.
* @todo document methods (?)
* @ingroup Profiler
*/
class ProfilerSimple extends Profiler {
var $mMinimumTime = 0;
var $mProfileID = false;
function __construct() {
global $wgRequestTime, $wgRUstart;
if (!empty($wgRequestTime) && !empty($wgRUstart)) {
$this->mWorkStack[] = array( '-total', 0, $wgRequestTime,$this->getCpuTime($wgRUstart));
$elapsedcpu = $this->getCpuTime() - $this->getCpuTime($wgRUstart);
$elapsedreal = microtime(true) - $wgRequestTime;
$entry =& $this->mCollated["-setup"];
if (!is_array($entry)) {
$entry = array('cpu'=> 0.0, 'cpu_sq' => 0.0, 'real' => 0.0, 'real_sq' => 0.0, 'count' => 0);
$this->mCollated["-setup"] =& $entry;
}
$entry['cpu'] += $elapsedcpu;
$entry['cpu_sq'] += $elapsedcpu*$elapsedcpu;
$entry['real'] += $elapsedreal;
$entry['real_sq'] += $elapsedreal*$elapsedreal;
$entry['count']++;
}
}
function setMinimum( $min ) {
$this->mMinimumTime = $min;
}
function setProfileID( $id ) {
$this->mProfileID = $id;
}
function getProfileID() {
if ( $this->mProfileID === false ) {
return wfWikiID();
} else {
return $this->mProfileID;
}
}
function profileIn($functionname) {
global $wgDebugFunctionEntry;
if ($wgDebugFunctionEntry) {
$this->debug(str_repeat(' ', count($this->mWorkStack)).'Entering '.$functionname."\n");
}
$this->mWorkStack[] = array($functionname, count( $this->mWorkStack ), microtime(true), $this->getCpuTime());
}
function profileOut($functionname) {
global $wgDebugFunctionEntry;
if ($wgDebugFunctionEntry) {
$this->debug(str_repeat(' ', count($this->mWorkStack) - 1).'Exiting '.$functionname."\n");
}
list($ofname, /* $ocount */ ,$ortime,$octime) = array_pop($this->mWorkStack);
if (!$ofname) {
$this->debug("Profiling error: $functionname\n");
} else {
if ($functionname == 'close') {
$message = "Profile section ended by close(): {$ofname}";
$functionname = $ofname;
$this->debug( "$message\n" );
$this->mCollated[$message] = array(
'real' => 0.0, 'count' => 1);
}
elseif ($ofname != $functionname) {
$message = "Profiling error: in({$ofname}), out($functionname)";
$this->debug( "$message\n" );
$this->mCollated[$message] = array(
'real' => 0.0, 'count' => 1);
}
$entry =& $this->mCollated[$functionname];
$elapsedcpu = $this->getCpuTime() - $octime;
$elapsedreal = microtime(true) - $ortime;
if (!is_array($entry)) {
$entry = array('cpu'=> 0.0, 'cpu_sq' => 0.0, 'real' => 0.0, 'real_sq' => 0.0, 'count' => 0);
$this->mCollated[$functionname] =& $entry;
}
$entry['cpu'] += $elapsedcpu;
$entry['cpu_sq'] += $elapsedcpu*$elapsedcpu;
$entry['real'] += $elapsedreal;
$entry['real_sq'] += $elapsedreal*$elapsedreal;
$entry['count']++;
}
}
function getFunctionReport() {
/* Implement in output subclasses */
}
function getCpuTime($ru=null) {
if ( function_exists( 'getrusage' ) ) {
if ( $ru == null )
$ru = getrusage();
return ($ru['ru_utime.tv_sec'] + $ru['ru_stime.tv_sec'] + ($ru['ru_utime.tv_usec'] +
$ru['ru_stime.tv_usec']) * 1e-6);
} else {
return 0;
}
}
/* If argument is passed, it assumes that it is dual-format time string, returns proper float time value */
function getTime($time=null) {
if ($time==null)
return microtime(true);
list($a,$b)=explode(" ",$time);
return (float)($a+$b);
}
}
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