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<?php
/**
* @file
* @ingroup Profiler
*/
if ( !class_exists( 'ProfilerSimple' ) ) {
require_once(dirname(__FILE__).'/ProfilerSimple.php');
}
/**
* Execution trace
* @todo document methods (?)
* @ingroup Profiler
*/
class ProfilerSimpleTrace extends ProfilerSimple {
var $mMinimumTime = 0;
var $mProfileID = false;
var $trace = "";
var $memory = 0;
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;
}
$this->trace .= "Beginning trace: \n";
}
function profileIn($functionname) {
global $wgDebugFunctionEntry;
$this->mWorkStack[] = array($functionname, count( $this->mWorkStack ), microtime(true), $this->getCpuTime());
$this->trace .= " " . sprintf("%6.1f",$this->memoryDiff()) . str_repeat( " ", count($this->mWorkStack)) . " > " . $functionname . "\n";
}
function profileOut($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->trace .= "Profiling error: $functionname\n";
} else {
if ($functionname == 'close') {
$message = "Profile section ended by close(): {$ofname}";
$functionname = $ofname;
$this->trace .= $message . "\n";
}
elseif ($ofname != $functionname) {
$self->trace .= "Profiling error: in({$ofname}), out($functionname)";
}
$elapsedcpu = $this->getCpuTime() - $octime;
$elapsedreal = microtime(true) - $ortime;
$this->trace .= sprintf("%03.6f %6.1f",$elapsedreal,$this->memoryDiff()) . str_repeat(" ",count($this->mWorkStack)+1) . " < " . $functionname . "\n";
}
}
function memoryDiff() {
$diff = memory_get_usage() - $this->memory;
$this->memory = memory_get_usage();
return $diff/1024;
}
function getOutput() {
print "<!-- \n {$this->trace} \n -->";
}
}
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