paricafe/src/daemons/server-stats.ts
Acid Chicken (硫酸鶏) 054220db70 リファクタリング (#4587)
* Use I cap

* Avoid _

* Use default value instead of optional boolean

* Bye useless variable

* Bye verbose try-catch
2019-04-14 17:18:17 +09:00

67 lines
1.3 KiB
TypeScript

import * as os from 'os';
import * as sysUtils from 'systeminformation';
import * as diskusage from 'diskusage';
import * as Deque from 'double-ended-queue';
import Xev from 'xev';
import * as osUtils from 'os-utils';
const ev = new Xev();
const interval = 1000;
/**
* Report server stats regularly
*/
export default function() {
const log = new Deque<any>();
ev.on('requestServerStatsLog', x => {
ev.emit(`serverStatsLog:${x.id}`, log.toArray().slice(0, x.length || 50));
});
async function tick() {
const cpu = await cpuUsage();
const usedmem = await usedMem();
const totalmem = await totalMem();
const disk = await diskusage.check(os.platform() == 'win32' ? 'c:' : '/');
const stats = {
cpu_usage: cpu,
mem: {
total: totalmem,
used: usedmem
},
disk,
os_uptime: os.uptime(),
process_uptime: process.uptime()
};
ev.emit('serverStats', stats);
log.unshift(stats);
if (log.length > 200) log.pop();
}
tick();
setInterval(tick, interval);
}
// CPU STAT
function cpuUsage() {
return new Promise((res, rej) => {
osUtils.cpuUsage((cpuUsage: number) => {
res(cpuUsage);
});
});
}
// MEMORY(excl buffer + cache) STAT
async function usedMem() {
const data = await sysUtils.mem();
return data.active;
}
// TOTAL MEMORY STAT
async function totalMem() {
const data = await sysUtils.mem();
return data.total;
}