64 lines
1.9 KiB
JavaScript
64 lines
1.9 KiB
JavaScript
'use strict';
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const si = require('systeminformation');
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const os = require('os');
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/**
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* 采集当前系统指标，返回符合 claw 协议的 metrics 对象
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* 所有数值均保留 2 位小数，内存/磁盘单位为 KB
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*/
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async function collect() {
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const [load, mem, fsArr, temp] = await Promise.allSettled([
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si.currentLoad(),
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si.mem(),
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si.fsSize(),
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si.cpuTemperature(),
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]);
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const r2 = (v) => (typeof v === 'number' && isFinite(v)) ? Math.round(v * 100) / 100 : null;
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const toKB = (bytes) => (typeof bytes === 'number') ? Math.round(bytes / 1024) : null;
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// CPU
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const cpu = load.status === 'fulfilled'
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? r2(load.value.currentLoad)
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: null;
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// 内存（bytes → KB）；用 total - available 反映真实占用，与 free -h 一致
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const memVal = mem.status === 'fulfilled' ? mem.value : {};
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const mem_total = toKB(memVal.total);
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const mem_used = toKB((memVal.total || 0) - (memVal.available || 0));
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// 磁盘：聚合所有真实挂载点，排除虚拟文件系统
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const VIRTUAL_FS = new Set(['tmpfs', 'devtmpfs', 'overlay', 'squashfs', 'ramfs', 'sysfs', 'proc']);
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let disk_total = null, disk_used = null;
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if (fsArr.status === 'fulfilled' && fsArr.value.length > 0) {
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const realFs = fsArr.value.filter(f => f.size > 0 && !VIRTUAL_FS.has(f.type));
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if (realFs.length > 0) {
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disk_total = toKB(realFs.reduce((s, f) => s + f.size, 0));
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disk_used = toKB(realFs.reduce((s, f) => s + f.used, 0));
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}
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}
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// 温度
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const temperature = temp.status === 'fulfilled'
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? r2(temp.value.main)
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: null;
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// 负载（/proc/loadavg，Linux 原生）
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const [load_1m, load_5m, load_15m] = os.loadavg().map(r2);
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// 运行时间（秒）
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const uptime = Math.floor(os.uptime());
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return {
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cpu,
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mem_total, mem_used,
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disk_total, disk_used,
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temperature,
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load_1m, load_5m, load_15m,
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uptime,
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};
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}
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module.exports = { collect };
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