301 lines
10 KiB
JavaScript
301 lines
10 KiB
JavaScript
/*
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Copyright 2019-2021 Intel Corporation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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var PDH_FMT_LONG = 0x00000100;
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var PDH_FMT_DOUBLE = 0x00000200;
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var promise = require('promise');
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if (process.platform == 'win32')
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{
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var GM = require('_GenericMarshal');
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GM.kernel32 = GM.CreateNativeProxy('kernel32.dll');
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GM.kernel32.CreateMethod('GlobalMemoryStatusEx');
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GM.pdh = GM.CreateNativeProxy('pdh.dll');
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GM.pdh.CreateMethod('PdhAddEnglishCounterA');
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GM.pdh.CreateMethod('PdhCloseQuery');
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GM.pdh.CreateMethod('PdhCollectQueryData');
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GM.pdh.CreateMethod('PdhGetFormattedCounterValue');
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GM.pdh.CreateMethod('PdhGetFormattedCounterArrayA');
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GM.pdh.CreateMethod('PdhOpenQueryA');
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GM.pdh.CreateMethod('PdhRemoveCounter');
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}
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function windows_cpuUtilization()
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{
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var p = new promise(function (res, rej) { this._res = res; this._rej = rej; });
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p.counter = GM.CreateVariable(16);
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p.cpu = GM.CreatePointer();
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p.cpuTotal = GM.CreatePointer();
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var err = 0;
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if ((err = GM.pdh.PdhOpenQueryA(0, 0, p.cpu).Val) != 0) { p._rej(err); return; }
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// This gets the CPU Utilization for each proc
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if ((err = GM.pdh.PdhAddEnglishCounterA(p.cpu.Deref(), GM.CreateVariable('\\Processor(*)\\% Processor Time'), 0, p.cpuTotal).Val) != 0) { p._rej(err); return; }
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if ((err = GM.pdh.PdhCollectQueryData(p.cpu.Deref()).Val != 0)) { p._rej(err); return; }
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p._timeout = setTimeout(function (po)
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{
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var u = { cpus: [] };
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var bufSize = GM.CreateVariable(4);
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var itemCount = GM.CreateVariable(4);
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var buffer, szName, item;
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var e;
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if ((e = GM.pdh.PdhCollectQueryData(po.cpu.Deref()).Val != 0)) { po._rej(e); return; }
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if ((e = GM.pdh.PdhGetFormattedCounterArrayA(po.cpuTotal.Deref(), PDH_FMT_DOUBLE, bufSize, itemCount, 0).Val) == -2147481646)
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{
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buffer = GM.CreateVariable(bufSize.toBuffer().readUInt32LE());
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}
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else
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{
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po._rej(e);
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return;
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}
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if ((e = GM.pdh.PdhGetFormattedCounterArrayA(po.cpuTotal.Deref(), PDH_FMT_DOUBLE, bufSize, itemCount, buffer).Val) != 0) { po._rej(e); return; }
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for(var i=0;i<itemCount.toBuffer().readUInt32LE();++i)
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{
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item = buffer.Deref(i * 24, 24);
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szName = item.Deref(0, GM.PointerSize).Deref();
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if (szName.String == '_Total')
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{
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u.total = item.Deref(16, 8).toBuffer().readDoubleLE();
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}
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else
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{
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u.cpus[parseInt(szName.String)] = item.Deref(16, 8).toBuffer().readDoubleLE();
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}
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}
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GM.pdh.PdhRemoveCounter(po.cpuTotal.Deref());
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GM.pdh.PdhCloseQuery(po.cpu.Deref());
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p._res(u);
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}, 100, p);
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return (p);
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}
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function windows_memUtilization()
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{
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var info = GM.CreateVariable(64);
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info.Deref(0, 4).toBuffer().writeUInt32LE(64);
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GM.kernel32.GlobalMemoryStatusEx(info);
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var ret =
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{
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MemTotal: require('bignum').fromBuffer(info.Deref(8, 8).toBuffer(), { endian: 'little' }),
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MemFree: require('bignum').fromBuffer(info.Deref(16, 8).toBuffer(), { endian: 'little' })
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};
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ret.percentFree = ((ret.MemFree.div(require('bignum')('1048576')).toNumber() / ret.MemTotal.div(require('bignum')('1048576')).toNumber()) * 100);//.toFixed(2);
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ret.percentConsumed = ((ret.MemTotal.sub(ret.MemFree).div(require('bignum')('1048576')).toNumber() / ret.MemTotal.div(require('bignum')('1048576')).toNumber()) * 100);//.toFixed(2);
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ret.MemTotal = ret.MemTotal.toString();
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ret.MemFree = ret.MemFree.toString();
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return (ret);
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}
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var cpuLastIdle = [];
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var cpuLastSum = [];
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function linux_cpuUtilization() {
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var ret = { cpus: [] };
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var info = require('fs').readFileSync('/proc/stat');
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var lines = info.toString().split('\n');
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var columns;
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var x, y;
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var cpuNo = 0;
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var currSum, currIdle, utilization;
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for (var i in lines) {
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columns = lines[i].split(' ');
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if (!columns[0].startsWith('cpu')) { break; }
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x = 0, currSum = 0;
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while (columns[++x] == '');
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for (y = x; y < columns.length; ++y) { currSum += parseInt(columns[y]); }
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currIdle = parseInt(columns[3 + x]);
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var diffIdle = currIdle - cpuLastIdle[cpuNo];
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var diffSum = currSum - cpuLastSum[cpuNo];
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utilization = (100 - ((diffIdle / diffSum) * 100));
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cpuLastSum[cpuNo] = currSum;
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cpuLastIdle[cpuNo] = currIdle;
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if (!ret.total) {
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ret.total = utilization;
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} else {
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ret.cpus.push(utilization);
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}
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++cpuNo;
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}
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var p = new promise(function (res, rej) { this._res = res; this._rej = rej; });
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p._res(ret);
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return (p);
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}
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function linux_memUtilization()
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{
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var ret = {};
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var info = require('fs').readFileSync('/proc/meminfo').toString().split('\n');
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var tokens;
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for(var i in info)
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{
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tokens = info[i].split(' ');
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switch(tokens[0])
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{
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case 'MemTotal:':
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ret.total = parseInt(tokens[tokens.length - 2]);
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break;
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case 'MemFree:':
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ret.free = parseInt(tokens[tokens.length - 2]);
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break;
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}
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}
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ret.percentFree = ((ret.free / ret.total) * 100);//.toFixed(2);
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ret.percentConsumed = (((ret.total - ret.free) / ret.total) * 100);//.toFixed(2);
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return (ret);
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}
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function macos_cpuUtilization()
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{
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var ret = new promise(function (res, rej) { this._res = res; this._rej = rej; });
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var child = require('child_process').execFile('/bin/sh', ['sh']);
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child.stdout.str = '';
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child.stdout.on('data', function (chunk) { this.str += chunk.toString(); });
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child.stdin.write('top -l 1 | grep -E "^CPU"\nexit\n');
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child.waitExit();
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var lines = child.stdout.str.split('\n');
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if (lines[0].length > 0)
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{
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var usage = lines[0].split(':')[1];
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var bdown = usage.split(',');
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var tot = parseFloat(bdown[0].split('%')[0].trim()) + parseFloat(bdown[1].split('%')[0].trim());
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ret._res({total: tot, cpus: []});
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}
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else
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{
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ret._rej('parse error');
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}
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return (ret);
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}
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function macos_memUtilization()
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{
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var mem = { };
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var ret = new promise(function (res, rej) { this._res = res; this._rej = rej; });
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var child = require('child_process').execFile('/bin/sh', ['sh']);
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child.stdout.str = '';
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child.stdout.on('data', function (chunk) { this.str += chunk.toString(); });
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child.stdin.write('top -l 1 | grep -E "^Phys"\nexit\n');
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child.waitExit();
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var lines = child.stdout.str.split('\n');
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if (lines[0].length > 0)
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{
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var usage = lines[0].split(':')[1];
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var bdown = usage.split(',');
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mem.MemTotal = parseInt(bdown[0].trim().split(' ')[0]);
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mem.MemFree = parseInt(bdown[1].trim().split(' ')[0]);
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mem.percentFree = ((mem.MemFree / mem.MemTotal) * 100);//.toFixed(2);
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mem.percentConsumed = (((mem.MemTotal - mem.MemFree) / mem.MemTotal) * 100);//.toFixed(2);
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return (mem);
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}
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else
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{
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throw ('Parse Error');
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}
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}
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function windows_thermals()
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{
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var ret = [];
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child = require('child_process').execFile(process.env['windir'] + '\\System32\\wbem\\wmic.exe', ['wmic', '/namespace:\\\\root\\wmi', 'PATH', 'MSAcpi_ThermalZoneTemperature', 'get', 'CurrentTemperature']);
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child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
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child.stderr.str = ''; child.stderr.on('data', function (c) { this.str += c.toString(); });
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child.waitExit();
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if(child.stdout.str.trim!='')
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{
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var lines = child.stdout.str.trim().split('\r\n');
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for (var i = 1; i < lines.length; ++i)
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{
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if (lines[i].trim() != '') { ret.push(((parseFloat(lines[i]) / 10) - 273.15).toFixed(2)); }
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}
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}
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return (ret);
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}
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function linux_thermals()
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{
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child = require('child_process').execFile('/bin/sh', ['sh']);
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child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
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child.stderr.str = ''; child.stderr.on('data', function (c) { this.str += c.toString(); });
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child.stdin.write("cat /sys/class/thermal/thermal_zone*/temp | awk '{ print $0 / 1000 }'\nexit\n");
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child.waitExit();
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var ret = child.stdout.str.trim().split('\n');
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if (ret.length == 1 && ret[0] == '') { ret = []; }
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return (ret);
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}
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function macos_thermals()
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{
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var ret = [];
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var child = require('child_process').execFile('/bin/sh', ['sh']);
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child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
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child.stderr.on('data', function () { });
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child.stdin.write('powermetrics --help | grep SMC\nexit\n');
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child.waitExit();
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if (child.stdout.str.trim() != '')
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{
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child = require('child_process').execFile('/bin/sh', ['sh']);
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child.stdout.str = ''; child.stdout.on('data', function (c)
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{
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this.str += c.toString();
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var tokens = this.str.trim().split('\n');
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for (var i in tokens)
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{
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if (tokens[i].split(' die temperature: ').length > 1)
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{
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ret.push(tokens[i].split(' ')[3]);
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this.parent.kill();
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}
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}
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});
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child.stderr.str = ''; child.stderr.on('data', function (c) { this.str += c.toString(); });
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child.stdin.write('powermetrics -s smc\n');
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child.waitExit(5000);
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}
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return (ret);
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}
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switch(process.platform)
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{
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case 'linux':
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module.exports = { cpuUtilization: linux_cpuUtilization, memUtilization: linux_memUtilization, thermals: linux_thermals };
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break;
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case 'win32':
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module.exports = { cpuUtilization: windows_cpuUtilization, memUtilization: windows_memUtilization, thermals: windows_thermals };
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break;
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case 'darwin':
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module.exports = { cpuUtilization: macos_cpuUtilization, memUtilization: macos_memUtilization, thermals: macos_thermals };
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break;
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}
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