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Add modules to repository
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Sebastian Kinne
199
Status/svg/graph_cpu.svg
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199
Status/svg/graph_cpu.svg
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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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OpenWRT port of this file based originally on the following:
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$Id: graph_cpu.php 41 2006-01-12 18:48:27Z mkasper $
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part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2004-2005 T. Lechat <dev@lechat.org>, Manuel Kasper <mk@neon1.net>
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and Jonathan Watt <jwatt@jwatt.org>.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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-->
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<svg xml:space='preserve' xmlns='http://www.w3.org/2000/svg'
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xmlns:xlink='http://www.w3.org/1999/xlink'
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width='100%' height='100%'
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viewBox='0 0 600 300'
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preserveAspectRatio='none'
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onload='init(evt)'
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>
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<g id='graph'>
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<rect id='bg' x1='0' y1='0' width='600' height='300' fill='white' />
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<text id='graph_lbl' x='50' y='15' fill='#435370' text-anchor='end'>CPU</text>
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<text id='graph_txt' x='54' y='15' fill='#435370'>--</text>
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<text id='error' x='300' y='125' text-anchor='middle' visibility='hidden' fill='blue'>Cannot get data about CPU</text>
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<text id='collect_initial' x='300' y='125' text-anchor='middle' visibility='hidden' fill='gray'>Collecting initial data, please wait...</text>
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<path id='grid' d='M 2 75 L 600 75 M 2 150 L 600 150 M 2 225 L 600 225' stroke='gray' stroke-opacity='0.5' />
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<text id='grid_txt3' x='600' y='223' fill='gray' text-anchor='end'>25%</text>
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<text id='grid_txt2' x='600' y='148' fill='gray' text-anchor='end'>50%</text>
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<text id='grid_txt1' x='600' y='73' fill='gray' text-anchor='end'>75%</text>
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<path id='graph_cpu' d='' fill='none' stroke='#435370' stroke-width='2' stroke-opacity='0.8' />
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<line id='axis_x' x1='1' y1='299' x2='600' y2='299' stroke='black' />
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<line id='axis_y' x1='1' y1='299.5' x2='1' y2='0' stroke='black' />
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</g>
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<script type="text/ecmascript">
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<![CDATA[
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if (typeof getURL == 'undefined') {
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getURL = function(url, callback) {
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if (!url)
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throw '@TR<<graph_No_URL_getURL#No URL for getURL>>';
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try {
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if (typeof callback.operationComplete == 'function')
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callback = callback.operationComplete;
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} catch (e) {}
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if (typeof callback != 'function')
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throw '@TR<<graph_No_callback_function#No callback function for getURL>>';
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var http_request = null;
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if (typeof XMLHttpRequest != 'undefined') {
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http_request = new XMLHttpRequest();
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}
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else if (typeof ActiveXObject != 'undefined') {
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try {
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http_request = new ActiveXObject('Msxml2.XMLHTTP');
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} catch (e) {
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try {
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http_request = new ActiveXObject('Microsoft.XMLHTTP');
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} catch (e) {}
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}
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}
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if (!http_request)
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throw '@TR<<graph_Both_undefined#Both getURL and XMLHttpRequest are undefined>>';
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http_request.onreadystatechange = function() {
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if (http_request.readyState == 4) {
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callback( { success : true,
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content : http_request.responseText,
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contentType : http_request.getResponseHeader("Content-Type") } );
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}
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}
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http_request.open('GET', url, true);
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http_request.send(null);
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}
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}
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var SVGDoc = null;
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var last_cpu_total = 0;
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var last_cpu_idle = 0;
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var cpu_data = new Array();
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var max_num_points = 120; // maximum number of plot data points
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var step = 600 / max_num_points; // plot X division size
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var fetch_url='../api/fetchcpu.php';
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function init(evt) {
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SVGDoc = evt.target.ownerDocument;
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fetch_data();
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setInterval('fetch_data()', 1000);
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}
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function fetch_data() {
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if (fetch_url) {
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getURL(fetch_url, plot_cpu_data);
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} else {
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handle_error();
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}
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}
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function plot_cpu_data(obj) {
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if (!obj.success || ''==obj.content) {
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return handle_error(); // getURL failed to get current CPU load data
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}
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try {
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var data=obj.content.split("\n");
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var ugmt=(Date.parse(data[0]))/1000;
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data=data[1].split(/\s+/);
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var tot=parseInt(data[1])+parseInt(data[2])+parseInt(data[3])+parseInt(data[4]);
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var idle=parseInt(data[4]);
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} catch (e) {
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return;
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}
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var cpu=0;
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if (tot==last_cpu_total) {
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cpu=100;
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} else {
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cpu=100*(idle-last_cpu_idle)/(tot-last_cpu_total);
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}
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cpu=100-cpu;
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last_cpu_idle=idle;
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last_cpu_total=tot;
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if (!isNumber(cpu)) return handle_error();
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switch (cpu_data.length) {
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case 0:
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SVGDoc.getElementById('collect_initial').setAttributeNS(null, 'visibility', 'visible');
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cpu_data[0] = cpu;
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fetch_data;
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return;
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case 1:
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SVGDoc.getElementById('collect_initial').setAttributeNS(null, 'visibility', 'hidden');
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break;
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case max_num_points:
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// shift plot to left if the maximum number of plot points has been reached
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var i = 0;
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while (i < max_num_points) {
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cpu_data[i] = cpu_data[++i];
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}
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--cpu_data.length;
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}
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cpu_data[cpu_data.length] = cpu;
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var path_data = "M 2 " + (298 - cpu_data[0]);
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for (var i = 1; i < cpu_data.length; ++i) {
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var x = step * i;
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var y_cpu = 298 - 2.975*cpu_data[i];
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path_data += " L" + x + " " + y_cpu;
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}
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SVGDoc.getElementById('error').setAttributeNS(null, 'visibility', 'hidden');
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SVGDoc.getElementById('graph_cpu').setAttributeNS(null, 'd', path_data);
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SVGDoc.getElementById('graph_txt').firstChild.data = Math.round(cpu*10)/10 + '%';
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}
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function handle_error() {
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SVGDoc.getElementById("error").setAttributeNS(null, 'visibility', 'visible');
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fetch_data();
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}
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function isNumber(a) {
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return typeof a == 'number' && isFinite(a);
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}
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]]>
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</script>
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</svg>
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