3 * Profiler showing execution trace.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
26 * @todo document methods (?)
29 class ProfilerSimpleTrace
extends ProfilerSimple
{
30 var $trace = "Beginning trace: \n";
33 function profileIn( $functionname ) {
34 parent
::profileIn( $functionname );
35 $this->trace
.= " " . sprintf("%6.1f",$this->memoryDiff()) .
36 str_repeat( " ", count($this->mWorkStack
)) . " > " . $functionname . "\n";
39 function profileOut($functionname) {
40 global $wgDebugFunctionEntry;
42 if ( $wgDebugFunctionEntry ) {
43 $this->debug(str_repeat(' ', count($this->mWorkStack
) - 1).'Exiting '.$functionname."\n");
46 list( $ofname, /* $ocount */ , $ortime ) = array_pop( $this->mWorkStack
);
49 $this->trace
.= "Profiling error: $functionname\n";
51 if ( $functionname == 'close' ) {
52 $message = "Profile section ended by close(): {$ofname}";
53 $functionname = $ofname;
54 $this->trace
.= $message . "\n";
56 elseif ( $ofname != $functionname ) {
57 $this->trace
.= "Profiling error: in({$ofname}), out($functionname)";
59 $elapsedreal = $this->getTime() - $ortime;
60 $this->trace
.= sprintf( "%03.6f %6.1f", $elapsedreal, $this->memoryDiff() ) .
61 str_repeat(" ", count( $this->mWorkStack
) +
1 ) . " < " . $functionname . "\n";
65 function memoryDiff() {
66 $diff = memory_get_usage() - $this->memory
;
67 $this->memory
= memory_get_usage();
72 print "<!-- \n {$this->trace} \n -->";