From 9e1de2113804678aab3365b39207a6c7d849489e Mon Sep 17 00:00:00 2001
From: Domas Mituzas <midom@users.mediawiki.org>
Date: Wed, 4 Mar 2009 09:37:31 +0000
Subject: [PATCH] a handy development utility!

---
 includes/ProfilerSimpleTrace.php | 66 ++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 includes/ProfilerSimpleTrace.php

diff --git a/includes/ProfilerSimpleTrace.php b/includes/ProfilerSimpleTrace.php
new file mode 100644
index 0000000000..fcd79ac5ef
--- /dev/null
+++ b/includes/ProfilerSimpleTrace.php
@@ -0,0 +1,66 @@
+<?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 = "";
+
+	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());
+		$this->trace .= str_repeat( " ", count($this->mWorkStack) + 14) . " > " . $functionname . "\n";
+	}
+
+	function profileOut($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;
+			$this->trace .= sprintf("%03.6f      ",$elapsedreal) .  str_repeat(" ",count($this->mWorkStack)+1) . " < " . $functionname . "\n";
+		}
+	}
+
+	function getOutput() {
+		print "<!-- \n {$this->trace} \n -->";
+	}
+}
-- 
2.20.1