server migration to TypeScript

server/src/utils/procUtils.ts

@@ -0,0 +1,41 @@
+import { spawn } from 'child_process';
+import fs = require('fs');
+import net = require('net');
+import { logger } from './logger';
+
+/**
+ * Browse /proc in order to find the specific pid
+ * @param {number} pid 
+ * @returns {*} process stats if any
+ */
+export function existsInProc(pid: number): any {
+    try {
+        return fs.statSync(`/proc/${pid}`)
+    } catch (e) {
+        logger('proc', `pid ${pid} not found in procfs`)
+    }
+}
+
+/*
+function retriveStdoutFromProcFd(pid) {
+    if (existsInProc(pid)) {
+        const unixSocket = fs.readlinkSync(`/proc/${pid}/fd/1`).replace('socket:[', '127.0.0.1:').replace(']', '')
+        if (unixSocket) {
+            console.log(unixSocket)
+            logger('proc', `found pending job on pid: ${pid} attached to UNIX socket: ${unixSocket}`)
+            return net.createConnection(unixSocket)
+        }
+    }
+}
+*/
+
+/**
+ * Kills a process with a sys-call
+ * @param {number} pid the killed process pid
+ */
+export async function killProcess(pid: number) {
+    const res = spawn('kill', [String(pid)])
+    res.on('exit', () => {
+        logger('proc', `Successfully killed yt-dlp process, pid: ${pid}`)
+    })
+}