d3f26be9 |
1 | <?php |
2 | /*************************************************************************** |
3 | * Copyright (C) 2003-2007 Polytechnique.org * |
4 | * http://opensource.polytechnique.org/ * |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * |
7 | * it under the terms of the GNU General Public License as published by * |
8 | * the Free Software Foundation; either version 2 of the License, or * |
9 | * (at your option) any later version. * |
10 | * * |
11 | * This program is distributed in the hope that it will be useful, * |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
14 | * GNU General Public License for more details. * |
15 | * * |
16 | * You should have received a copy of the GNU General Public License * |
17 | * along with this program; if not, write to the Free Software * |
18 | * Foundation, Inc., * |
19 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * |
20 | ***************************************************************************/ |
21 | |
22 | /** Ligth debugging tool to generate execution backtrace |
23 | */ |
24 | class PlBacktrace |
25 | { |
26 | static public $bt = array(); |
27 | |
28 | public $traces = array(); |
29 | public $totaltime = 0.0; |
30 | public $error = false; |
31 | |
32 | function __construct($name, array $init = array(), $sizef = 'rows', $timef = 'exectime', $errorf = 'error') |
33 | { |
34 | PlBacktrace::$bt[$name] = $this; |
35 | foreach ($init as &$entry) { |
36 | $this->add($entry, $sizef, $timef, $errorf); |
37 | } |
38 | } |
39 | |
40 | private function add(array &$entry, $sizef = 'rows', $timef = 'exectime', $errorf = 'error') |
41 | { |
42 | $trace = array(); |
43 | $trace['action'] = $entry['action']; |
44 | unset($entry['action']); |
45 | $trace['exectime'] = @$entry[$timef]; |
46 | $this->totaltime += $trace['exectime']; |
47 | unset($entry[$timef]); |
48 | $trace['rows'] = @$entry[$sizef]; |
49 | unset($entry[$sizef]); |
50 | $trace['error'] = @$entry[$errorf]; |
51 | unset($entry[$errorf]); |
52 | if ($trace['error']) { |
53 | $this->error = true; |
54 | } |
55 | $trace['data'] = array($entry); |
56 | $this->traces[] =& $trace; |
57 | } |
58 | |
59 | public function newEvent($action, $rows = 0, $error = null, array $userdata = array()) |
60 | { |
61 | $trace = array('action' => $action, 'time' => 0); |
62 | $this->traces[] =& $trace; |
63 | $this->update($rows, $error, $userdata); |
64 | } |
65 | |
66 | public function start($action) |
67 | { |
68 | $trace = array('action' => $action, 'starttime' => microtime(true)); |
69 | $this->traces[] =& $trace; |
70 | } |
71 | |
72 | public function stop($rows = 0, $error = null, array $userdata = array()) |
73 | { |
74 | $time = microtime(true); |
75 | if (!$this->traces) { |
76 | return; |
77 | } |
78 | $trace =& $this->traces[count($this->traces) - 1]; |
79 | $trace['time'] = $time - $trace['starttime']; |
80 | unset($trace['starttime']); |
81 | $this->totaltime += $trace['time']; |
82 | $this->update($rows, $error, $userdata); |
83 | } |
84 | |
85 | public function update($rows = 0, $error = null, array $userdata = array()) |
86 | { |
87 | $trace =& $this->traces[count($this->traces) - 1]; |
88 | $trace['rows'] = $rows; |
89 | $trace['error'] = $error; |
90 | $trace['data'] = $userdata; |
91 | if ($trace['error']) { |
92 | $this->error = true; |
93 | } |
94 | } |
95 | |
96 | public static function clean() |
97 | { |
98 | foreach (PlBacktrace::$bt as $name=>&$entry) { |
99 | if (!$entry->traces) { |
100 | unset(PlBacktrace::$bt[$name]); |
101 | } |
102 | } |
103 | } |
104 | } |
105 | |
106 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
107 | ?> |