The Tor Browser: media/webrtc/trunk/build/android/pylib/device_stats

     1 <!DOCTYPE html>

     2 <!--

     3  * Copyright (c) 2012 The Chromium Authors. All rights reserved.  Use of this

     4  * source code is governed by a BSD-style license that can be found in the

     5  * LICENSE file.

     6 -->

     7 <html>

     8 <head>

     9   <title>Device Stats Monitor</title>

    10   <script type="text/javascript" src="http://www.google.com/jsapi"></script>

    11   <style>

    12   body {

    13     font-family: sans-serif

    14   }

    15   </style>

    16 </head>

    17 <body>

    18 <h2>Device Stats Monitor</h2>

    19 <ul>

    20 <li>Pass path to trace data via the <code>results</code> querystring param.

    21 <li>Combine charts with the <code>combine</code> querystring param (e.g. <code>&combine=sectors_read,sectors_written</code>).

    22 <li>Use <code>stacked=true</code> to stack combined charts instead of overlaying (default).

    23 </ul>

    24 </body>

    25 <script>

    26 google.load("visualization", "1", {packages:["corechart"]});

    28 /**

    29  * @returns The querystring param value for |name| or an empty string.

    30  */

    31 function getQuerystringParam(name) {

    32   name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");

    33   var regexS = "[\\?&]" + name + "=([^&#]*)";

    34   var regex = new RegExp(regexS);

    35   var results = regex.exec(window.location.search);

    36   if (results == null)

    37     return "";

    38   else

    39     return decodeURIComponent(results[1].replace(/\+/g, " "));

    40 }

    42 /**

    43  * @returns An array of keys in |obj| sorted by value.

    44  */

    45 function sortedKeys(obj) {

    46   var keys = [];

    47   for (var key in obj) {

    48     keys.push(key);

    49   }

    50   keys.sort();

    51   return keys;

    52 }

    54 /**

    55  * Removes by value all params from array.

    56  */

    57 Array.prototype.remove = function() {

    58   var what, a = arguments, l = a.length, ax;

    59   while (l && this.length) {

    60     what = a[--l];

    61     while ((ax = this.indexOf(what)) != -1) {

    62       this.splice(ax, 1);

    63     }

    64   }

    65   return this;

    66 }

    68 /**

    69  * Displays a new chart.

    70  *

    71  * @param {Number} hz Number of sample per second of the data.

    72  * @param {String} name Name to display on top of chart.

    73  * @param {Number[][]} values Array of value arrays to display.

    74  * @param {Boolean} stacked Whether to display values as stacked.

    75  */

    76 function displayChart(hz, name, values, units, stacked) {

    77   var data = new google.visualization.DataTable();

    78   data.addColumn('number', 'ms');

    79   var names = name.split(',');

    80   for (var i = 0; i < names.length; i++) {

    81     data.addColumn('number', names[i]);

    82   }

    84   var rows = [];

    85   var interval = 1000.0 / hz;

    86   for (var i = 0; i < values[0].length; i++) {

    87     var row = [i*interval];

    88     for (var j = 0; j < values.length; j++) {

    89       row.push(values[j][i]);

    90     }

    91     rows.push(row);

    92   }

    93   data.addRows(rows);

    95   var options = {

    96     hAxis: {title: 'ms (' + hz + 'hz)'},

    97     isStacked: stacked,

    98     legend: {position: 'top'},

    99     vAxis: {title: units},

   100   };

   102   var elem = document.createElement('DIV');

   103   elem.style = 'width:100%;height:500px';

   104   document.body.appendChild(elem);

   105   var chart = new google.visualization.AreaChart(elem);

   106   chart.draw(data, options);

   107 }

   109 /**

   110  * Displays all charts.

   111  *

   112  * Invoked by the results script. JSONP is used to avoid security

   113  * restrictions on XHRs for file:// URLs.

   114  */

   115 function display(hz, results, units) {

   116   var combine = getQuerystringParam('combine');

   117   var keys = sortedKeys(results);

   118   for (var i = 0; i < keys.length; i++) {

   119     var key = keys[i];

   120     var name = key;

   121     var values = [results[key]];

   122     var unit = units[key];

   123     if (combine.indexOf(key) >= 0) {

   124       i--;

   125       name = combine;

   126       values = [];

   127       var combined_keys = combine.split(',');

   128       for (var j = 0; j < combined_keys.length; j++) {

   129         values.push(results[combined_keys[j]]);

   130         keys.remove(combined_keys[j]);

   131       }

   132     }

   133     displayChart(hz, name, values, unit, !!getQuerystringParam('stacked'));

   134   }

   135 }

   137 var resultsPath = getQuerystringParam('results');

   138 if (resultsPath)

   139   document.write("<script src='" + resultsPath + "'></"+"script>");

   140 else

   141   document.write("Please specify results querystring param.");

   142 </script>

   143 </html>

The Tor Browser / file revision